Merge pull request #1776 from umbraco/temp-U4-9587

U4-9587 RebuildXmlStructures doesn't clear out stale data so there is…

build/NuSpecs/UmbracoCms.Core.nuspec

@@ -28,17 +28,17 @@
       <dependency id="MySql.Data" version="[6.9.8, 7.0.0)" />
       <dependency id="xmlrpcnet" version="[2.5.0, 3.0.0)" />
       <dependency id="ClientDependency" version="[1.9.2, 2.0.0)" />
-      <dependency id="ClientDependency-Mvc5" version="[1.8.0, 2.0.0)" />
+      <dependency id="ClientDependency-Mvc5" version="[1.8.0.0, 2.0.0)" />
 	  <!-- AutoMapper can not be updated due to: https://github.com/AutoMapper/AutoMapper/issues/373#issuecomment-127644405 -->
       <dependency id="AutoMapper" version="[3.3.1, 4.0.0)" />
       <dependency id="Newtonsoft.Json" version="[6.0.8, 10.0.0)" />
-      <dependency id="Examine" version="[0.1.70, 1.0.0)" />
-      <dependency id="ImageProcessor" version="[2.4.5, 3.0.0)" />
-      <dependency id="ImageProcessor.Web" version="[4.6.6, 5.0.0)" />
+      <dependency id="Examine" version="[0.1.81, 1.0.0)" />
+      <dependency id="ImageProcessor" version="[2.5.2, 3.0.0)" />
+      <dependency id="ImageProcessor.Web" version="[4.8.2, 5.0.0)" />
       <dependency id="semver" version="[1.1.2, 2.0.0)" />
       <dependency id="UrlRewritingNet" version="[2.0.7, 3.0.0)" />	  
 	  <!-- Markdown can not be updated due to: https://github.com/hey-red/markdownsharp/issues/71#issuecomment-233585487 -->
-      <dependency id="Markdown" version="[1.14.4, 2.0.0)" />	  
+      <dependency id="Markdown" version="[1.14.7, 2.0.0)" />	  
     </dependencies>
   </metadata>
   <files>
@@ -103,4 +103,4 @@
     <file src="..\_BuildOutput\bin\UmbracoExamine.pdb" target="lib" />
     <file src="..\..\src\UmbracoExamine\**\*.cs" exclude="..\..\src\**\TemporaryGeneratedFile*.cs" target="src\UmbracoExamine" />
   </files>
-</package>
+</package>

build/NuSpecs/UmbracoCms.nuspec

@@ -18,6 +18,7 @@
       <dependency id="UmbracoCms.Core" version="[$version$]" />
       <dependency id="Newtonsoft.Json" version="[6.0.8, 10.0.0)" />
       <dependency id="Umbraco.ModelsBuilder" version="[3.0.5, 4.0.0)" />
+      <dependency id="ImageProcessor.Web.Config" version="[2.3.0, 3.0.0)" />	  
     </dependencies>
   </metadata>
   <files>
@@ -43,6 +44,8 @@
     <file src="tools\trees.config.install.xdt" target="Content\config\trees.config.install.xdt" />
     <file src="tools\umbracoSettings.config.install.xdt" target="Content\config\umbracoSettings.config.install.xdt" />
     <file src="tools\Views.Web.config.install.xdt" target="Views\Web.config.install.xdt" />
+    <file src="tools\processing.config.install.xdt" target="Content\Config\imageprocessor\processing.config.install.xdt" />
+    <file src="tools\cache.config.install.xdt" target="Content\Config\imageprocessor\cache.config.install.xdt" />
     <file src="build\**" target="build" />
   </files>
 </package>

build/NuSpecs/tools/cache.config.install.xdt

@@ -0,0 +1,6 @@
+<?xml version="1.0"?>
+<caching xmlns:xdt="http://schemas.microsoft.com/XML-Document-Transform">
+  <caches>
+    <cache name="DiskCache" trimCache="false" xdt:Transform="SetAttributes(trimCache)" xdt:Locator="Match(name)"  />
+  </caches>
+</caching>

build/NuSpecs/tools/install.core.ps1

@@ -71,6 +71,7 @@ if ($project) {
 		if(Test-Path $umbracoBinFolder\ImageProcessor.dll) { Remove-Item $umbracoBinFolder\ImageProcessor.dll -Force -Confirm:$false }
 		if(Test-Path $umbracoBinFolder\ImageProcessor.Web.dll) { Remove-Item $umbracoBinFolder\ImageProcessor.Web.dll -Force -Confirm:$false }
 		if(Test-Path $umbracoBinFolder\Lucene.Net.dll) { Remove-Item $umbracoBinFolder\Lucene.Net.dll -Force -Confirm:$false }
+		if(Test-Path $umbracoBinFolder\Microsoft.IO.RecyclableMemoryStream.dll) { Remove-Item $umbracoBinFolder\Microsoft.IO.RecyclableMemoryStream.dll -Force -Confirm:$false }
 		if(Test-Path $umbracoBinFolder\Microsoft.AspNet.Identity.Core.dll) { Remove-Item $umbracoBinFolder\Microsoft.AspNet.Identity.Core.dll -Force -Confirm:$false }
 		if(Test-Path $umbracoBinFolder\Microsoft.AspNet.Identity.Owin.dll) { Remove-Item $umbracoBinFolder\Microsoft.AspNet.Identity.Owin.dll -Force -Confirm:$false }
 		if(Test-Path $umbracoBinFolder\Microsoft.CodeAnalysis.CSharp.dll) { Remove-Item $umbracoBinFolder\Microsoft.CodeAnalysis.CSharp.dll -Force -Confirm:$false }

build/NuSpecs/tools/processing.config.install.xdt

@@ -0,0 +1 @@
+<processing xmlns:xdt="http://schemas.microsoft.com/XML-Document-Transform" xdt:Transform="SetAttributes(preserveExifMetaData)" preserveExifMetaData="true" />

build/UmbracoVersion.txt

@@ -1,2 +1,2 @@
 # Usage: on line 2 put the release version, on line 3 put the version comment (example: beta)
-7.5.7
+7.5.11

src/SQLCE4Umbraco/SqlCE4Umbraco.csproj

@@ -49,13 +49,9 @@
     <Reference Include="System.Core" />
     <Reference Include="System.Data.SqlServerCe, Version=4.0.0.1, Culture=neutral, PublicKeyToken=89845dcd8080cc91, processorArchitecture=MSIL">
       <HintPath>..\packages\SqlServerCE.4.0.0.1\lib\System.Data.SqlServerCe.dll</HintPath>
-      <SpecificVersion>False</SpecificVersion>
-      <Private>False</Private>
     </Reference>
     <Reference Include="System.Data.SqlServerCe.Entity, Version=4.0.0.1, Culture=neutral, PublicKeyToken=89845dcd8080cc91, processorArchitecture=MSIL">
       <HintPath>..\packages\SqlServerCE.4.0.0.1\lib\System.Data.SqlServerCe.Entity.dll</HintPath>
-      <SpecificVersion>False</SpecificVersion>
-      <Private>False</Private>
     </Reference>
     <Reference Include="System.Xml.Linq" />
     <Reference Include="System.Data.DataSetExtensions" />

src/SolutionInfo.cs

@@ -2,7 +2,7 @@
 using System.Resources;
 
 [assembly: AssemblyCompany("Umbraco")]
-[assembly: AssemblyCopyright("Copyright © Umbraco 2016")]
+[assembly: AssemblyCopyright("Copyright © Umbraco 2017")]
 [assembly: AssemblyTrademark("")]
 [assembly: AssemblyCulture("")]
 
@@ -11,5 +11,5 @@ using System.Resources;
 
 [assembly: AssemblyVersion("1.0.*")]
 
-[assembly: AssemblyFileVersion("7.5.7")]
-[assembly: AssemblyInformationalVersion("7.5.7")]
+[assembly: AssemblyFileVersion("7.5.11")]
+[assembly: AssemblyInformationalVersion("7.5.11")]

src/Umbraco.Core/Cache/CacheKeys.cs

@@ -64,7 +64,8 @@ namespace Umbraco.Core.Cache
         [UmbracoWillObsolete("This cache key is only used for legacy business logic caching, remove in v8")]
         public const string ContentTypePropertiesCacheKey = "ContentType_PropertyTypes_Content:";
         
-        [UmbracoWillObsolete("This cache key is only used for legacy business logic caching, remove in v8")]
+        [Obsolete("No longer used and will be removed in v8")]
+        [EditorBrowsable(EditorBrowsableState.Never)]
         public const string PropertyTypeCacheKey = "UmbracoPropertyTypeCache";
 
         [Obsolete("This is no longer used and will be removed from the codebase in the future")]

src/Umbraco.Core/Configuration/ContentXmlStorage.cs

@@ -0,0 +1,9 @@
+namespace Umbraco.Core.Configuration
+{
+    internal enum ContentXmlStorage
+    {
+        Default,
+        AspNetTemp,
+        EnvironmentTemp
+    }
+}

src/Umbraco.Core/Configuration/GlobalSettings.cs

@@ -520,12 +520,25 @@ namespace Umbraco.Core.Configuration
         }
 
         internal static bool ContentCacheXmlStoredInCodeGen
+        {
+            get { return ContentCacheXmlStorageLocation == ContentXmlStorage.AspNetTemp; }
+        }
+
+        internal static ContentXmlStorage ContentCacheXmlStorageLocation
         {
             get
             {
-                //defaults to false
-                return ConfigurationManager.AppSettings.ContainsKey("umbracoContentXMLUseLocalTemp") 
-                    && bool.Parse(ConfigurationManager.AppSettings["umbracoContentXMLUseLocalTemp"]); //default to false
+                if (ConfigurationManager.AppSettings.ContainsKey("umbracoContentXMLStorage"))
+                {
+                    return Enum<ContentXmlStorage>.Parse(ConfigurationManager.AppSettings["umbracoContentXMLStorage"]);
+                }
+                if (ConfigurationManager.AppSettings.ContainsKey("umbracoContentXMLUseLocalTemp"))
+                {
+                    return bool.Parse(ConfigurationManager.AppSettings["umbracoContentXMLUseLocalTemp"]) 
+                        ? ContentXmlStorage.AspNetTemp 
+                        : ContentXmlStorage.Default;
+                }
+                return ContentXmlStorage.Default;
             }
         }
 

src/Umbraco.Core/Configuration/UmbracoSettings/ContentElement.cs

@@ -4,8 +4,7 @@ using System.Configuration;
 
 namespace Umbraco.Core.Configuration.UmbracoSettings
 {
-
-    internal class ContentElement : ConfigurationElement, IContentSection
+    internal class ContentElement : UmbracoConfigurationElement, IContentSection
     {
         [ConfigurationProperty("imaging")]
         internal ContentImagingElement Imaging
@@ -22,25 +21,13 @@ namespace Umbraco.Core.Configuration.UmbracoSettings
         [ConfigurationProperty("ResolveUrlsFromTextString")]
         internal InnerTextConfigurationElement<bool> ResolveUrlsFromTextString
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<bool>(
-                       (InnerTextConfigurationElement<bool>)this["ResolveUrlsFromTextString"],
-                        //set the default
-                       false);
-            }
+            get { return GetOptionalTextElement<bool>("ResolveUrlsFromTextString", false); }
         }
 
         [ConfigurationProperty("UploadAllowDirectories")]
         internal InnerTextConfigurationElement<bool> UploadAllowDirectories
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<bool>(
-                       (InnerTextConfigurationElement<bool>)this["UploadAllowDirectories"],
-                    //set the default
-                       true);
-            }
+            get { return GetOptionalTextElement("UploadAllowDirectories", true); }
         }
 
         public IEnumerable<IContentErrorPage> Error404Collection
@@ -63,121 +50,61 @@ namespace Umbraco.Core.Configuration.UmbracoSettings
         [ConfigurationProperty("ensureUniqueNaming")]
         internal InnerTextConfigurationElement<bool> EnsureUniqueNaming
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<bool>(
-                      (InnerTextConfigurationElement<bool>)this["ensureUniqueNaming"],
-                    //set the default
-                      true);
-            }
+            get { return GetOptionalTextElement("ensureUniqueNaming", true); }
         }
 
         [ConfigurationProperty("TidyEditorContent")]
         internal InnerTextConfigurationElement<bool> TidyEditorContent
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<bool>(
-                      (InnerTextConfigurationElement<bool>)this["TidyEditorContent"],
-                    //set the default
-                      false);
-            }
+            get { return GetOptionalTextElement("TidyEditorContent", false); }
         }
 
         [ConfigurationProperty("TidyCharEncoding")]
         internal InnerTextConfigurationElement<string> TidyCharEncoding
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<string>(
-                          (InnerTextConfigurationElement<string>)this["TidyCharEncoding"],
-                            //set the default
-                          "UTF8");
-            }
+            get { return GetOptionalTextElement("TidyCharEncoding", "UTF8"); }
         }
 
         [ConfigurationProperty("XmlCacheEnabled")]
         internal InnerTextConfigurationElement<bool> XmlCacheEnabled
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<bool>(
-                          (InnerTextConfigurationElement<bool>)this["XmlCacheEnabled"],
-                    //set the default
-                          true);
-            }
+            get { return GetOptionalTextElement("XmlCacheEnabled", true); }
         }
 
         [ConfigurationProperty("ContinouslyUpdateXmlDiskCache")]
         internal InnerTextConfigurationElement<bool> ContinouslyUpdateXmlDiskCache
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<bool>(
-                          (InnerTextConfigurationElement<bool>)this["ContinouslyUpdateXmlDiskCache"],
-                    //set the default
-                          true);                
-            }
+            get { return GetOptionalTextElement("ContinouslyUpdateXmlDiskCache", true); }
         }
 
         [ConfigurationProperty("XmlContentCheckForDiskChanges")]
         internal InnerTextConfigurationElement<bool> XmlContentCheckForDiskChanges
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<bool>(
-                          (InnerTextConfigurationElement<bool>)this["XmlContentCheckForDiskChanges"],
-                    //set the default
-                          false); 
-            }
+            get { return GetOptionalTextElement("XmlContentCheckForDiskChanges", false); }
         }
 
         [ConfigurationProperty("EnableSplashWhileLoading")]
         internal InnerTextConfigurationElement<bool> EnableSplashWhileLoading
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<bool>(
-                          (InnerTextConfigurationElement<bool>)this["EnableSplashWhileLoading"],
-                    //set the default
-                          false); 
-            }
+            get { return GetOptionalTextElement("EnableSplashWhileLoading", false); }
         }
 
         [ConfigurationProperty("PropertyContextHelpOption")]
         internal InnerTextConfigurationElement<string> PropertyContextHelpOption
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<string>(
-                          (InnerTextConfigurationElement<string>)this["PropertyContextHelpOption"],
-                    //set the default
-                          "text"); 
-            }
+            get { return GetOptionalTextElement("PropertyContextHelpOption", "text"); }
         }
 
         [ConfigurationProperty("UseLegacyXmlSchema")]
         internal InnerTextConfigurationElement<bool> UseLegacyXmlSchema
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<bool>(
-                          (InnerTextConfigurationElement<bool>)this["UseLegacyXmlSchema"],
-                    //set the default
-                          false); 
-            }
+            get { return GetOptionalTextElement("UseLegacyXmlSchema", false); }
         }
         
         [ConfigurationProperty("ForceSafeAliases")]
         internal InnerTextConfigurationElement<bool> ForceSafeAliases
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<bool>(
-                          (InnerTextConfigurationElement<bool>)this["ForceSafeAliases"],
-                    //set the default
-                          true); 
-            }
+            get { return GetOptionalTextElement("ForceSafeAliases", true); }
         }
 
         [ConfigurationProperty("PreviewBadge")]
@@ -185,123 +112,63 @@ namespace Umbraco.Core.Configuration.UmbracoSettings
         {
             get
             {
-                return new OptionalInnerTextConfigurationElement<string>(
-                          (InnerTextConfigurationElement<string>)this["PreviewBadge"],
-                    //set the default
-                          @"<a id=""umbracoPreviewBadge"" style=""position: absolute; top: 0; right: 0; border: 0; width: 149px; height: 149px; background: url('{1}/preview/previewModeBadge.png') no-repeat;"" href=""{0}/endPreview.aspx?redir={2}""><span style=""display:none;"">In Preview Mode - click to end</span></a>"); 
+                return GetOptionalTextElement("PreviewBadge", @"<a id=""umbracoPreviewBadge"" style=""position: absolute; top: 0; right: 0; border: 0; width: 149px; height: 149px; background: url('{1}/preview/previewModeBadge.png') no-repeat;"" href=""{0}/endPreview.aspx?redir={2}""><span style=""display:none;"">In Preview Mode - click to end</span></a>");                
             }
         }
 
         [ConfigurationProperty("UmbracoLibraryCacheDuration")]
         internal InnerTextConfigurationElement<int> UmbracoLibraryCacheDuration
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<int>(
-                          (InnerTextConfigurationElement<int>)this["UmbracoLibraryCacheDuration"],
-                    //set the default
-                          1800); 
-                
-            }
+            get { return GetOptionalTextElement("UmbracoLibraryCacheDuration", 1800); }
         }
 
         [ConfigurationProperty("MacroErrors")]
         internal InnerTextConfigurationElement<MacroErrorBehaviour> MacroErrors
         {
-            get
-            {
-
-                return new OptionalInnerTextConfigurationElement<MacroErrorBehaviour>(
-                          (InnerTextConfigurationElement<MacroErrorBehaviour>)this["MacroErrors"],
-                    //set the default
-                          MacroErrorBehaviour.Inline); 
-            }
+            get { return GetOptionalTextElement("MacroErrors", MacroErrorBehaviour.Inline); }
         }
 
         [Obsolete("This is here so that if this config element exists we won't get a YSOD, it is not used whatsoever and will be removed in future versions")]
         [ConfigurationProperty("DocumentTypeIconList")]
         internal InnerTextConfigurationElement<IconPickerBehaviour> DocumentTypeIconList
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<IconPickerBehaviour>(
-                          (InnerTextConfigurationElement<IconPickerBehaviour>)this["DocumentTypeIconList"],
-                    //set the default
-                          IconPickerBehaviour.HideFileDuplicates);
-            }
+            get { return GetOptionalTextElement("DocumentTypeIconList", IconPickerBehaviour.HideFileDuplicates); }
         }
 
         [ConfigurationProperty("disallowedUploadFiles")]
         internal CommaDelimitedConfigurationElement DisallowedUploadFiles
         {
-            get
-            {
-                return new OptionalCommaDelimitedConfigurationElement(
-                       (CommaDelimitedConfigurationElement)this["disallowedUploadFiles"],
-                    //set the default
-                       new[] { "ashx", "aspx", "ascx", "config", "cshtml", "vbhtml", "asmx", "air", "axd" });
-
-            }
+            get { return GetOptionalDelimitedElement("disallowedUploadFiles", new[] {"ashx", "aspx", "ascx", "config", "cshtml", "vbhtml", "asmx", "air", "axd"}); }
         }
 
         [ConfigurationProperty("cloneXmlContent")]
         internal InnerTextConfigurationElement<bool> CloneXmlContent
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<bool>(
-                    (InnerTextConfigurationElement<bool>)this["cloneXmlContent"],
-                    //set the default
-                    true);
-            }
+            get { return GetOptionalTextElement("cloneXmlContent", true); }
         }
 
         [ConfigurationProperty("GlobalPreviewStorageEnabled")]
         internal InnerTextConfigurationElement<bool> GlobalPreviewStorageEnabled
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<bool>(
-                    (InnerTextConfigurationElement<bool>)this["GlobalPreviewStorageEnabled"],
-                    //set the default
-                    false);
-            }
+            get { return GetOptionalTextElement("GlobalPreviewStorageEnabled", false); }
         }
 
         [ConfigurationProperty("defaultDocumentTypeProperty")]
         internal InnerTextConfigurationElement<string> DefaultDocumentTypeProperty
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<string>(
-                    (InnerTextConfigurationElement<string>)this["defaultDocumentTypeProperty"],
-                    //set the default
-                    "Textstring");
-            }
+            get { return GetOptionalTextElement("defaultDocumentTypeProperty", "Textstring"); }
         }
 
         [ConfigurationProperty("EnableInheritedDocumentTypes")]
         internal InnerTextConfigurationElement<bool> EnableInheritedDocumentTypes
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<bool>(
-                    (InnerTextConfigurationElement<bool>) this["EnableInheritedDocumentTypes"],
-                    //set the default
-                    true);
-            }
+            get { return GetOptionalTextElement("EnableInheritedDocumentTypes", true); }
         }
 
         [ConfigurationProperty("EnableInheritedMediaTypes")]
         internal InnerTextConfigurationElement<bool> EnableInheritedMediaTypes
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<bool>(
-                    (InnerTextConfigurationElement<bool>)this["EnableInheritedMediaTypes"],
-                    //set the default
-                    true);
-            }
+            get { return GetOptionalTextElement("EnableInheritedMediaTypes", true); }
         }
 
         string IContentSection.NotificationEmailAddress

src/Umbraco.Core/Configuration/UmbracoSettings/ContentScriptEditorElement.cs

@@ -3,42 +3,24 @@ using System.Configuration;
 
 namespace Umbraco.Core.Configuration.UmbracoSettings
 {
-    internal class ContentScriptEditorElement : ConfigurationElement
+    internal class ContentScriptEditorElement : UmbracoConfigurationElement
     {
         [ConfigurationProperty("scriptFolderPath")]
         internal InnerTextConfigurationElement<string> ScriptFolderPath
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<string>(
-                       (InnerTextConfigurationElement<string>)this["scriptFolderPath"],
-                    //set the default
-                       "/scripts");
-            }
+            get { return GetOptionalTextElement("scriptFolderPath", "/scripts"); }
         }
 
         [ConfigurationProperty("scriptFileTypes")]
         internal OptionalCommaDelimitedConfigurationElement ScriptFileTypes
         {
-            get
-            {
-                return new OptionalCommaDelimitedConfigurationElement(
-                       (OptionalCommaDelimitedConfigurationElement)this["scriptFileTypes"],
-                    //set the default
-                       new[] { "js", "xml" });                
-            }
+            get { return GetOptionalDelimitedElement("scriptFileTypes", new[] {"js", "xml"}); }
         }
 
         [ConfigurationProperty("scriptDisableEditor")]
         internal InnerTextConfigurationElement<bool> ScriptEditorDisable
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<bool>(
-                    (InnerTextConfigurationElement<bool>) this["scriptDisableEditor"],
-                    //set the default
-                    false);
-            }
+            get { return GetOptionalTextElement("scriptDisableEditor", false); }
         }
 
     }

src/Umbraco.Core/Configuration/UmbracoSettings/ImagingAutoFillUploadFieldElement.cs

@@ -2,7 +2,7 @@
 
 namespace Umbraco.Core.Configuration.UmbracoSettings
 {
-    internal class ImagingAutoFillUploadFieldElement : ConfigurationElement, IImagingAutoFillUploadField
+    internal class ImagingAutoFillUploadFieldElement : UmbracoConfigurationElement, IImagingAutoFillUploadField
     {
         /// <summary>
         /// Allow setting internally so we can create a default
@@ -17,49 +17,25 @@ namespace Umbraco.Core.Configuration.UmbracoSettings
         [ConfigurationProperty("widthFieldAlias")]
         internal InnerTextConfigurationElement<string> WidthFieldAlias
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<string>(
-                       (InnerTextConfigurationElement<string>)this["widthFieldAlias"],
-                    //set the default
-                       "umbracoWidth");
-            }
+            get { return GetOptionalTextElement("widthFieldAlias", "umbracoWidth"); }
         }
 
         [ConfigurationProperty("heightFieldAlias")]
         internal InnerTextConfigurationElement<string> HeightFieldAlias
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<string>(
-                       (InnerTextConfigurationElement<string>)this["heightFieldAlias"],
-                    //set the default
-                       "umbracoHeight");
-            }
+            get { return GetOptionalTextElement("heightFieldAlias", "umbracoHeight"); }
         }
 
         [ConfigurationProperty("lengthFieldAlias")]
         internal InnerTextConfigurationElement<string> LengthFieldAlias
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<string>(
-                       (InnerTextConfigurationElement<string>)this["lengthFieldAlias"],
-                    //set the default
-                       "umbracoBytes");
-            }
+            get { return GetOptionalTextElement("lengthFieldAlias", "umbracoBytes"); }
         }
 
         [ConfigurationProperty("extensionFieldAlias")]
         internal InnerTextConfigurationElement<string> ExtensionFieldAlias
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<string>(
-                       (InnerTextConfigurationElement<string>)this["extensionFieldAlias"],
-                    //set the default
-                       "umbracoExtension");
-            }
+            get { return GetOptionalTextElement("extensionFieldAlias", "umbracoExtension"); }
         }
 
         string IImagingAutoFillUploadField.Alias

src/Umbraco.Core/Configuration/UmbracoSettings/LoggingElement.cs

@@ -3,67 +3,37 @@ using System.Configuration;
 
 namespace Umbraco.Core.Configuration.UmbracoSettings
 {
-    internal class LoggingElement : ConfigurationElement, ILoggingSection
+    internal class LoggingElement : UmbracoConfigurationElement, ILoggingSection
     {
         
         [ConfigurationProperty("autoCleanLogs")]
         internal InnerTextConfigurationElement<bool> AutoCleanLogs
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<bool>(
-                    (InnerTextConfigurationElement<bool>)this["autoCleanLogs"],
-                    //set the default
-                    false);            
-            }
+            get { return GetOptionalTextElement("autoCleanLogs", false); }
         }
 
         [ConfigurationProperty("enableLogging")]
         internal InnerTextConfigurationElement<bool> EnableLogging
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<bool>(
-                    (InnerTextConfigurationElement<bool>)this["enableLogging"],
-                    //set the default
-                    true);            
-            }
+            get { return GetOptionalTextElement("enableLogging", true); }
         }
 
         [ConfigurationProperty("enableAsyncLogging")]
         internal InnerTextConfigurationElement<bool> EnableAsyncLogging
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<bool>(
-                    (InnerTextConfigurationElement<bool>)this["enableAsyncLogging"],
-                    //set the default
-                    true);           
-            }
+            get { return GetOptionalTextElement("enableAsyncLogging", true); }
         }
 
         [ConfigurationProperty("cleaningMiliseconds")]
         internal InnerTextConfigurationElement<int> CleaningMiliseconds
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<int>(
-                    (InnerTextConfigurationElement<int>)this["cleaningMiliseconds"],
-                    //set the default
-                    -1);                      
-            }
+            get { return GetOptionalTextElement("cleaningMiliseconds", -1); }
         }
 
         [ConfigurationProperty("maxLogAge")]
         internal InnerTextConfigurationElement<int> MaxLogAge
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<int>(
-                    (InnerTextConfigurationElement<int>)this["maxLogAge"],
-                    //set the default
-                    -1);
-            }
+            get { return GetOptionalTextElement("maxLogAge", -1); }
         }
 
         [ConfigurationCollection(typeof(DisabledLogTypesCollection), AddItemName = "logTypeAlias")]

src/Umbraco.Core/Configuration/UmbracoSettings/NotificationsElement.cs

@@ -2,7 +2,7 @@
 
 namespace Umbraco.Core.Configuration.UmbracoSettings
 {
-    internal class NotificationsElement : ConfigurationElement
+    internal class NotificationsElement : UmbracoConfigurationElement
     {
         [ConfigurationProperty("email")]
         internal InnerTextConfigurationElement<string> NotificationEmailAddress
@@ -13,13 +13,7 @@ namespace Umbraco.Core.Configuration.UmbracoSettings
         [ConfigurationProperty("disableHtmlEmail")]
         internal InnerTextConfigurationElement<bool> DisableHtmlEmail
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<bool>(
-                    (InnerTextConfigurationElement<bool>) this["disableHtmlEmail"], 
-                    //set the default
-                    false);
-            }
+            get { return GetOptionalTextElement("disableHtmlEmail", false); }
         }
 
     }

src/Umbraco.Core/Configuration/UmbracoSettings/RequestHandlerElement.cs

@@ -5,30 +5,18 @@ using System.Collections.Generic;
 
 namespace Umbraco.Core.Configuration.UmbracoSettings
 {
-    internal class RequestHandlerElement : ConfigurationElement, IRequestHandlerSection
+    internal class RequestHandlerElement : UmbracoConfigurationElement, IRequestHandlerSection
     {
         [ConfigurationProperty("useDomainPrefixes")]
         public InnerTextConfigurationElement<bool> UseDomainPrefixes
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<bool>(
-                    (InnerTextConfigurationElement<bool>)this["useDomainPrefixes"],
-                    //set the default
-                    false);  
-            }
+            get { return GetOptionalTextElement("useDomainPrefixes", false); }
         }
 
         [ConfigurationProperty("addTrailingSlash")]
         public InnerTextConfigurationElement<bool> AddTrailingSlash
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<bool>(
-                    (InnerTextConfigurationElement<bool>)this["addTrailingSlash"],
-                    //set the default
-                    true);  
-            }
+            get { return GetOptionalTextElement("addTrailingSlash", true); }
         }
 
         private UrlReplacingElement _defaultUrlReplacing;

src/Umbraco.Core/Configuration/UmbracoSettings/SecurityElement.cs

@@ -2,66 +2,36 @@
 
 namespace Umbraco.Core.Configuration.UmbracoSettings
 {
-    internal class SecurityElement : ConfigurationElement, ISecuritySection
+    internal class SecurityElement : UmbracoConfigurationElement, ISecuritySection
     {
         [ConfigurationProperty("keepUserLoggedIn")]
         internal InnerTextConfigurationElement<bool> KeepUserLoggedIn
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<bool>(
-                    (InnerTextConfigurationElement<bool>)this["keepUserLoggedIn"],
-                    //set the default
-                    true);   
-            }
+            get { return GetOptionalTextElement("keepUserLoggedIn", true); }
         }
 
         [ConfigurationProperty("hideDisabledUsersInBackoffice")]
         internal InnerTextConfigurationElement<bool> HideDisabledUsersInBackoffice
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<bool>(
-                    (InnerTextConfigurationElement<bool>)this["hideDisabledUsersInBackoffice"],
-                    //set the default
-                    false);                          
-            }
+            get { return GetOptionalTextElement("hideDisabledUsersInBackoffice", false); }
         }
 
         [ConfigurationProperty("allowPasswordReset")]
         internal InnerTextConfigurationElement<bool> AllowPasswordReset
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<bool>(
-                    (InnerTextConfigurationElement<bool>)this["allowPasswordReset"],
-                    //set the default
-                    true);
-            }
+            get { return GetOptionalTextElement("allowPasswordReset", true); }
         }
 
         [ConfigurationProperty("authCookieName")]
         internal InnerTextConfigurationElement<string> AuthCookieName
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<string>(
-                    (InnerTextConfigurationElement<string>)this["authCookieName"],
-                    //set the default
-                    Constants.Web.AuthCookieName);                
-            }
+            get { return GetOptionalTextElement("authCookieName", Constants.Web.AuthCookieName); }
         }
 
         [ConfigurationProperty("authCookieDomain")]
         internal InnerTextConfigurationElement<string> AuthCookieDomain
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<string>(
-                    (InnerTextConfigurationElement<string>)this["authCookieDomain"],
-                    //set the default
-                    null);                    
-            }
+            get { return GetOptionalTextElement<string>("authCookieDomain", null); }
         }
 
         bool ISecuritySection.KeepUserLoggedIn

src/Umbraco.Core/Configuration/UmbracoSettings/TemplatesElement.cs

@@ -3,55 +3,31 @@ using System.Configuration;
 
 namespace Umbraco.Core.Configuration.UmbracoSettings
 {
-    internal class TemplatesElement : ConfigurationElement, ITemplatesSection
+    internal class TemplatesElement : UmbracoConfigurationElement, ITemplatesSection
     {
         [ConfigurationProperty("useAspNetMasterPages")]
         internal InnerTextConfigurationElement<bool> UseAspNetMasterPages
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<bool>(
-                    (InnerTextConfigurationElement<bool>)this["useAspNetMasterPages"],
-                    //set the default
-                    true);
-            }
+            get { return GetOptionalTextElement("useAspNetMasterPages", true); }
         }
 
         [ConfigurationProperty("enableSkinSupport")]
         internal InnerTextConfigurationElement<bool> EnableSkinSupport
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<bool>(
-                    (InnerTextConfigurationElement<bool>)this["enableSkinSupport"],
-                    //set the default
-                    true);
-            }
+            get { return GetOptionalTextElement("enableSkinSupport", true); }
         }
 
         [ConfigurationProperty("defaultRenderingEngine", IsRequired = true)]
         internal InnerTextConfigurationElement<RenderingEngine> DefaultRenderingEngine
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<RenderingEngine>(
-                    (InnerTextConfigurationElement<RenderingEngine>)this["defaultRenderingEngine"],
-                    //set the default
-                    RenderingEngine.Mvc);
-            }
+            get { return GetOptionalTextElement("defaultRenderingEngine", RenderingEngine.Mvc); }
         }
 
         [Obsolete("This has no affect and will be removed in future versions")]
         [ConfigurationProperty("enableTemplateFolders")]
         internal InnerTextConfigurationElement<bool> EnableTemplateFolders
         {
-            get
-            {
-                return new OptionalInnerTextConfigurationElement<bool>(
-                    (InnerTextConfigurationElement<bool>)this["enableTemplateFolders"],
-                    //set the default
-                    false);
-            }
+            get { return GetOptionalTextElement("enableTemplateFolders", false); }
         }
 
         bool ITemplatesSection.UseAspNetMasterPages

src/Umbraco.Core/Configuration/UmbracoSettings/UmbracoConfigurationElement.cs

@@ -0,0 +1,36 @@
+using System.Collections.Concurrent;
+using System.Configuration;
+
+namespace Umbraco.Core.Configuration.UmbracoSettings
+{
+    /// <summary>
+    /// Base class with shared helper methods
+    /// </summary>
+    internal class UmbracoConfigurationElement : ConfigurationElement
+    {
+        /// <summary>
+        /// Used so the RawElement types are not re-created every time they are accessed
+        /// </summary>
+        private readonly ConcurrentDictionary<string, RawXmlConfigurationElement> _rawElements = new ConcurrentDictionary<string, RawXmlConfigurationElement>();
+
+        protected OptionalInnerTextConfigurationElement<T> GetOptionalTextElement<T>(string name, T defaultVal)
+        {
+            return (OptionalInnerTextConfigurationElement<T>) _rawElements.GetOrAdd(
+                name,
+                s => new OptionalInnerTextConfigurationElement<T>(
+                    (InnerTextConfigurationElement<T>) this[s],
+                    //set the default
+                    defaultVal));
+        }
+
+        protected OptionalCommaDelimitedConfigurationElement GetOptionalDelimitedElement(string name, string[] defaultVal)
+        {
+            return (OptionalCommaDelimitedConfigurationElement) _rawElements.GetOrAdd(
+                name,
+                s => new OptionalCommaDelimitedConfigurationElement(
+                    (CommaDelimitedConfigurationElement) this[name],
+                    //set the default
+                    defaultVal));
+        }
+    }
+}

src/Umbraco.Core/Configuration/UmbracoVersion.cs

@@ -6,7 +6,7 @@ namespace Umbraco.Core.Configuration
 {
     public class UmbracoVersion
     {
-        private static readonly Version Version = new Version("7.5.7");
+        private static readonly Version Version = new Version("7.5.11");
 
         /// <summary>
         /// Gets the current version of Umbraco.

src/Umbraco.Core/CoreBootManager.cs

@@ -415,7 +415,7 @@ namespace Umbraco.Core
 
             if (currentTry == 5)
             {
-                throw new UmbracoStartupFailedException("Umbraco cannot start. A connection string is configured but the Umbraco cannot connect to the database.");
+                throw new UmbracoStartupFailedException("Umbraco cannot start. A connection string is configured but Umbraco cannot connect to the database.");
             }
         }
 

src/Umbraco.Core/DatabaseContext.cs

@@ -203,15 +203,10 @@ namespace Umbraco.Core
             var path = Path.Combine(GlobalSettings.FullpathToRoot, "App_Data", "Umbraco.sdf");
             if (File.Exists(path) == false)
             {
-                var engine = new SqlCeEngine(connectionString);
-                engine.CreateDatabase();
-
-                // SD: Pretty sure this should be in a using clause but i don't want to cause unknown side-effects here
-                // since it's been like this for quite some time
-                //using (var engine = new SqlCeEngine(connectionString))
-                //{
-                //    engine.CreateDatabase();    
-                //}
+                using (var engine = new SqlCeEngine(connectionString))
+                {
+                    engine.CreateDatabase();
+                }
             }
 
             Initialize(providerName);

src/Umbraco.Core/IO/SystemFiles.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.ComponentModel;
 using System.Configuration;
 using System.IO;
 using System.Linq;
@@ -72,15 +73,28 @@ namespace Umbraco.Core.IO
         {
             get
             {
-                if (GlobalSettings.ContentCacheXmlStoredInCodeGen && SystemUtilities.GetCurrentTrustLevel() == AspNetHostingPermissionLevel.Unrestricted)
-                {
-                    return Path.Combine(HttpRuntime.CodegenDir, @"UmbracoData\umbraco.config");
+                switch (GlobalSettings.ContentCacheXmlStorageLocation)
+                {                    
+                    case ContentXmlStorage.AspNetTemp:
+                        return Path.Combine(HttpRuntime.CodegenDir, @"UmbracoData\umbraco.config");
+                    case ContentXmlStorage.EnvironmentTemp:
+                        var appDomainHash = HttpRuntime.AppDomainAppId.ToSHA1();
+                        var cachePath = Path.Combine(Environment.ExpandEnvironmentVariables("%temp%"), "UmbracoXml",
+                            //include the appdomain hash is just a safety check, for example if a website is moved from worker A to worker B and then back
+                            // to worker A again, in theory the %temp%  folder should already be empty but we really want to make sure that its not
+                            // utilizing an old path
+                            appDomainHash);
+                        return Path.Combine(cachePath, "umbraco.config");
+                    case ContentXmlStorage.Default:
+                        return IOHelper.ReturnPath("umbracoContentXML", "~/App_Data/umbraco.config");
+                    default:
+                        throw new ArgumentOutOfRangeException();
                 }
-                return IOHelper.ReturnPath("umbracoContentXML", "~/App_Data/umbraco.config");
             }
         }
 
         [Obsolete("Use GlobalSettings.ContentCacheXmlStoredInCodeGen instead")]
+        [EditorBrowsable(EditorBrowsableState.Never)]
         internal static bool ContentCacheXmlStoredInCodeGen
         {
             get { return GlobalSettings.ContentCacheXmlStoredInCodeGen; }

src/Umbraco.Core/Logging/ImageProcessorLogger.cs

@@ -1,9 +1,9 @@
-namespace Umbraco.Core.Logging
-{
-    using System;
-    using System.Runtime.CompilerServices;
+using System;
+using System.Runtime.CompilerServices;
+using ImageProcessor.Common.Exceptions;
 
-    using ImageProcessor.Common.Exceptions;
+namespace Umbraco.Core.Logging
+{   
 
     /// <summary>
     /// A logger for explicitly logging ImageProcessor exceptions.

src/Umbraco.Core/Models/ContentExtensions.cs

@@ -404,8 +404,7 @@ namespace Umbraco.Core.Models
             return content.Properties
                           .Where(property => propertyGroup.PropertyTypes
                                                           .Select(propertyType => propertyType.Id)
-                                                          .Contains(property.PropertyTypeId))
-                          .OrderBy(x => x.PropertyType.SortOrder);
+                                                          .Contains(property.PropertyTypeId));
         }
 
         /// <summary>

src/Umbraco.Core/Models/IMediaType.cs

@@ -4,7 +4,7 @@ namespace Umbraco.Core.Models
 {
     /// <summary>
     /// Defines a ContentType, which Media is based on
-    /// </summary
+    /// </summary>
     public interface IMediaType : IContentTypeComposition
     {
 

src/Umbraco.Core/Models/Identity/IdentityModelMappings.cs

@@ -13,6 +13,7 @@ namespace Umbraco.Core.Models.Identity
         public override void ConfigureMappings(IConfiguration config, ApplicationContext applicationContext)
         {
             config.CreateMap<IUser, BackOfficeIdentityUser>()
+                .ForMember(user => user.LastLoginDateUtc, expression => expression.MapFrom(user => user.LastLoginDate.ToUniversalTime()))
                 .ForMember(user => user.Email, expression => expression.MapFrom(user => user.Email))
                 .ForMember(user => user.Id, expression => expression.MapFrom(user => user.Id))
                 .ForMember(user => user.LockoutEndDateUtc, expression => expression.MapFrom(user => user.IsLockedOut ? DateTime.MaxValue.ToUniversalTime() : (DateTime?)null))                

src/Umbraco.Core/Models/Identity/IdentityUser.cs

@@ -24,12 +24,17 @@ namespace Umbraco.Core.Models.Identity
         /// 
         /// </summary>
         public IdentityUser()
-        {
+        {            
             this.Claims = new List<TClaim>();
             this.Roles = new List<TRole>();
             this.Logins = new List<TLogin>();
         }
 
+        /// <summary>
+        /// Last login date
+        /// </summary>
+        public virtual DateTime? LastLoginDateUtc { get; set; }
+
         /// <summary>
         /// Email
         /// 

src/Umbraco.Core/Models/PropertyTypeCollection.cs

@@ -69,6 +69,7 @@ namespace Umbraco.Core.Models
             OnCollectionChanged(new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset));
         }
 
+        //TODO: Instead of 'new' this should explicitly implement one of the collection interfaces members
         internal new void Add(PropertyType item)
         {
             using (new WriteLock(_addLocker))

src/Umbraco.Core/Models/PublicAccessEntry.cs

@@ -110,6 +110,12 @@ namespace Umbraco.Core.Models
             _ruleCollection.Clear();
         }
 
+
+        internal void ClearRemovedRules()
+        {
+            _removedRules.Clear();
+        }
+
         [DataMember]
         public int LoginNodeId
         {

src/Umbraco.Core/Models/PublishedContent/PublishedPropertyType.cs

@@ -106,12 +106,13 @@ namespace Umbraco.Core.Models.PublishedContent
         /// <param name="propertyTypeAlias">The property type alias.</param>
         /// <param name="dataTypeDefinitionId">The datatype definition identifier.</param>
         /// <param name="propertyEditorAlias">The property editor alias.</param>
+        /// <param name="initConverters">Generally used only for testing, in production this will always be true</param>
         /// <remarks>
         /// <para>The new published property type does not belong to a published content type.</para>
         /// <para>The values of <paramref name="dataTypeDefinitionId"/> and <paramref name="propertyEditorAlias"/> are
         /// assumed to be valid and consistent.</para>
         /// </remarks>
-        internal PublishedPropertyType(string propertyTypeAlias, int dataTypeDefinitionId, string propertyEditorAlias)
+        internal PublishedPropertyType(string propertyTypeAlias, int dataTypeDefinitionId, string propertyEditorAlias, bool initConverters = true)
         {
             // ContentType 
             // - in unit tests, to be set by PublishedContentType when creating it
@@ -122,7 +123,8 @@ namespace Umbraco.Core.Models.PublishedContent
             DataTypeId = dataTypeDefinitionId;
             PropertyEditorAlias = propertyEditorAlias;
 
-            InitializeConverters();
+            if (initConverters)
+                InitializeConverters();
         }
 
         #endregion

src/Umbraco.Core/Models/UmbracoEntityExtensions.cs

@@ -1,15 +1,117 @@
 using System;
 using System.Collections.Generic;
+using System.IO;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 using System.Web.UI.WebControls;
+using Umbraco.Core.Logging;
 using Umbraco.Core.Models.EntityBase;
+using Umbraco.Core.Models.Rdbms;
 
 namespace Umbraco.Core.Models
 {
     internal static class UmbracoEntityExtensions
     {
+        /// <summary>
+        /// Does a quick check on the entity's set path to ensure that it's valid and consistent
+        /// </summary>
+        /// <param name="entity"></param>
+        /// <returns></returns>
+        public static void ValidatePathWithException(this NodeDto entity)
+        {
+            //don't validate if it's empty and it has no id
+            if (entity.NodeId == default(int) && entity.Path.IsNullOrWhiteSpace())
+                return;
+
+            if (entity.Path.IsNullOrWhiteSpace())
+                throw new InvalidDataException(string.Format("The content item {0} has an empty path: {1} with parentID: {2}", entity.NodeId, entity.Path, entity.ParentId));
+
+            var pathParts = entity.Path.Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
+            if (pathParts.Length < 2)
+            {
+                //a path cannot be less than 2 parts, at a minimum it must be root (-1) and it's own id
+                throw new InvalidDataException(string.Format("The content item {0} has an invalid path: {1} with parentID: {2}", entity.NodeId, entity.Path, entity.ParentId));
+            }
+
+            if (entity.ParentId != default(int) && pathParts[pathParts.Length - 2] != entity.ParentId.ToInvariantString())
+            {
+                //the 2nd last id in the path must be it's parent id
+                throw new InvalidDataException(string.Format("The content item {0} has an invalid path: {1} with parentID: {2}", entity.NodeId, entity.Path, entity.ParentId));
+            }
+        }
+
+        /// <summary>
+        /// Does a quick check on the entity's set path to ensure that it's valid and consistent
+        /// </summary>
+        /// <param name="entity"></param>
+        /// <returns></returns>
+        public static bool ValidatePath(this IUmbracoEntity entity)
+        {
+            //don't validate if it's empty and it has no id
+            if (entity.HasIdentity == false && entity.Path.IsNullOrWhiteSpace())
+                return true;
+
+            if (entity.Path.IsNullOrWhiteSpace())
+                return false;
+
+            var pathParts = entity.Path.Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
+            if (pathParts.Length < 2)
+            {
+                //a path cannot be less than 2 parts, at a minimum it must be root (-1) and it's own id
+                return false;
+            }
+
+            if (entity.ParentId != default(int) && pathParts[pathParts.Length - 2] != entity.ParentId.ToInvariantString())
+            {
+                //the 2nd last id in the path must be it's parent id
+                return false;
+            }
+
+            return true;
+        }
+
+        /// <summary>
+        /// This will validate the entity's path and if it's invalid it will fix it, if fixing is required it will recursively 
+        /// check and fix all ancestors if required.
+        /// </summary>
+        /// <param name="entity"></param>
+        /// <param name="logger"></param>
+        /// <param name="getParent">A callback specified to retrieve the parent entity of the entity</param>
+        /// <param name="update">A callback specified to update a fixed entity</param>
+        public static void EnsureValidPath<T>(this T entity, 
+            ILogger logger, 
+            Func<T, T> getParent,
+            Action<T> update)
+            where T: IUmbracoEntity
+        {
+            if (entity.HasIdentity == false)
+                throw new InvalidOperationException("Could not ensure the entity path, the entity has not been assigned an identity");
+
+            if (entity.ValidatePath() == false)
+            {
+                logger.Warn(typeof(UmbracoEntityExtensions), string.Format("The content item {0} has an invalid path: {1} with parentID: {2}", entity.Id, entity.Path, entity.ParentId));
+                if (entity.ParentId == -1)
+                {
+                    entity.Path = string.Concat("-1,", entity.Id);
+                    //path changed, update it
+                    update(entity);
+                }
+                else
+                {
+                    var parent = getParent(entity);
+                    if (parent == null)
+                        throw new NullReferenceException("Could not ensure path for entity " + entity.Id + " could not resolve it's parent " + entity.ParentId);
+
+                    //the parent must also be valid!
+                    parent.EnsureValidPath(logger, getParent, update);
+
+                    entity.Path = string.Concat(parent.Path, ",", entity.Id);
+                    //path changed, update it
+                    update(entity);
+                }
+            }
+        }
 
         public static bool HasChildren(this IUmbracoEntity entity)
         {

src/Umbraco.Core/Persistence/Factories/ContentFactory.cs

@@ -27,15 +27,28 @@ namespace Umbraco.Core.Persistence.Factories
 
         #region Implementation of IEntityFactory<IContent,DocumentDto>
 
-        public IContent BuildEntity(DocumentDto dto)
+        /// <summary>
+        /// Builds a IContent item from the dto(s) and content type
+        /// </summary>
+        /// <param name="dto">
+        /// This DTO can contain all of the information to build an IContent item, however in cases where multiple entities are being built,
+        /// a separate <see cref="DocumentPublishedReadOnlyDto"/> publishedDto entity will be supplied in place of the <see cref="DocumentDto"/>'s own 
+        /// ResultColumn DocumentPublishedReadOnlyDto
+        /// </param>
+        /// <param name="contentType"></param>
+        /// <param name="publishedDto">
+        /// When querying for multiple content items the main DTO will not contain the ResultColumn DocumentPublishedReadOnlyDto and a separate publishedDto instance will be supplied
+        /// </param>
+        /// <returns></returns>
+        public static IContent BuildEntity(DocumentDto dto, IContentType contentType, DocumentPublishedReadOnlyDto publishedDto = null)
         {
-            var content = new Content(dto.Text, dto.ContentVersionDto.ContentDto.NodeDto.ParentId, _contentType);
+            var content = new Content(dto.Text, dto.ContentVersionDto.ContentDto.NodeDto.ParentId, contentType);
 
             try
             {
                 content.DisableChangeTracking();
 
-                content.Id = _id;
+                content.Id = dto.NodeId;
                 content.Key = dto.ContentVersionDto.ContentDto.NodeDto.UniqueId;
                 content.Name = dto.Text;
                 content.NodeName = dto.ContentVersionDto.ContentDto.NodeDto.Text;
@@ -49,11 +62,16 @@ namespace Umbraco.Core.Persistence.Factories
                 content.Published = dto.Published;
                 content.CreateDate = dto.ContentVersionDto.ContentDto.NodeDto.CreateDate;
                 content.UpdateDate = dto.ContentVersionDto.VersionDate;
-                content.ExpireDate = dto.ExpiresDate.HasValue ? dto.ExpiresDate.Value : (DateTime?) null;
-                content.ReleaseDate = dto.ReleaseDate.HasValue ? dto.ReleaseDate.Value : (DateTime?) null;
+                content.ExpireDate = dto.ExpiresDate.HasValue ? dto.ExpiresDate.Value : (DateTime?)null;
+                content.ReleaseDate = dto.ReleaseDate.HasValue ? dto.ReleaseDate.Value : (DateTime?)null;
                 content.Version = dto.ContentVersionDto.VersionId;
+
                 content.PublishedState = dto.Published ? PublishedState.Published : PublishedState.Unpublished;
-                content.PublishedVersionGuid = dto.DocumentPublishedReadOnlyDto == null ? default(Guid) : dto.DocumentPublishedReadOnlyDto.VersionId;
+
+                //Check if the publishedDto has been supplied, if not the use the dto's own DocumentPublishedReadOnlyDto value
+                content.PublishedVersionGuid = publishedDto == null
+                    ? (dto.DocumentPublishedReadOnlyDto == null ? default(Guid) : dto.DocumentPublishedReadOnlyDto.VersionId)
+                    : publishedDto.VersionId;
 
                 //on initial construction we don't want to have dirty properties tracked
                 // http://issues.umbraco.org/issue/U4-1946
@@ -64,6 +82,13 @@ namespace Umbraco.Core.Persistence.Factories
             {
                 content.EnableChangeTracking();
             }
+
+        }
+
+        [Obsolete("Use the static BuildEntity instead so we don't have to allocate one of these objects everytime we want to map values")]
+        public IContent BuildEntity(DocumentDto dto)
+        {
+            return BuildEntity(dto, _contentType);
         }
 
         public DocumentDto BuildDto(IContent entity)

src/Umbraco.Core/Persistence/Factories/MediaFactory.cs

@@ -27,15 +27,15 @@ namespace Umbraco.Core.Persistence.Factories
 
         #region Implementation of IEntityFactory<IMedia,ContentVersionDto>
 
-        public IMedia BuildEntity(ContentVersionDto dto)
+        public static IMedia BuildEntity(ContentVersionDto dto, IMediaType contentType)
         {
-            var media = new Models.Media(dto.ContentDto.NodeDto.Text, dto.ContentDto.NodeDto.ParentId, _contentType);
+            var media = new Models.Media(dto.ContentDto.NodeDto.Text, dto.ContentDto.NodeDto.ParentId, contentType);
 
             try
             {
                 media.DisableChangeTracking();
 
-                media.Id = _id;
+                media.Id = dto.NodeId;
                 media.Key = dto.ContentDto.NodeDto.UniqueId;
                 media.Path = dto.ContentDto.NodeDto.Path;
                 media.CreatorId = dto.ContentDto.NodeDto.UserId.Value;
@@ -55,6 +55,13 @@ namespace Umbraco.Core.Persistence.Factories
             {
                 media.EnableChangeTracking();
             }
+
+        }
+
+        [Obsolete("Use the static BuildEntity instead so we don't have to allocate one of these objects everytime we want to map values")]
+        public IMedia BuildEntity(ContentVersionDto dto)
+        {
+            return BuildEntity(dto, _contentType);
         }
 
         public ContentVersionDto BuildDto(IMedia entity)

src/Umbraco.Core/Persistence/Factories/MemberFactory.cs

@@ -28,17 +28,17 @@ namespace Umbraco.Core.Persistence.Factories
 
         #region Implementation of IEntityFactory<IMedia,ContentVersionDto>
 
-        public IMember BuildEntity(MemberDto dto)
+        public static IMember BuildEntity(MemberDto dto, IMemberType contentType)
         {
             var member = new Member(
                 dto.ContentVersionDto.ContentDto.NodeDto.Text,
-                dto.Email, dto.LoginName, dto.Password, _contentType);
+                dto.Email, dto.LoginName, dto.Password, contentType);
 
             try
             {
                 member.DisableChangeTracking();
 
-                member.Id = _id;
+                member.Id = dto.NodeId;
                 member.Key = dto.ContentVersionDto.ContentDto.NodeDto.UniqueId;
                 member.Path = dto.ContentVersionDto.ContentDto.NodeDto.Path;
                 member.CreatorId = dto.ContentVersionDto.ContentDto.NodeDto.UserId.Value;
@@ -62,6 +62,12 @@ namespace Umbraco.Core.Persistence.Factories
             }
         }
 
+        [Obsolete("Use the static BuildEntity instead so we don't have to allocate one of these objects everytime we want to map values")]
+        public IMember BuildEntity(MemberDto dto)
+        {
+            return BuildEntity(dto, _contentType);
+        }
+
         public MemberDto BuildDto(IMember entity)
         {
             var dto = new MemberDto

src/Umbraco.Core/Persistence/Factories/PropertyFactory.cs

@@ -30,11 +30,11 @@ namespace Umbraco.Core.Persistence.Factories
             _updateDate = updateDate;
         }
 
-        public IEnumerable<Property> BuildEntity(PropertyDataDto[] dtos)
+        public static IEnumerable<Property> BuildEntity(IReadOnlyCollection<PropertyDataDto> dtos, PropertyType[] compositionTypeProperties, DateTime createDate, DateTime updateDate)
         {
             var properties = new List<Property>();
 
-            foreach (var propertyType in _compositionTypeProperties)
+            foreach (var propertyType in compositionTypeProperties)
             {
                 var propertyDataDto = dtos.LastOrDefault(x => x.PropertyTypeId == propertyType.Id);
                 var property = propertyDataDto == null
@@ -47,8 +47,8 @@ namespace Umbraco.Core.Persistence.Factories
                     //on initial construction we don't want to have dirty properties tracked
                     property.DisableChangeTracking();
 
-                    property.CreateDate = _createDate;
-                    property.UpdateDate = _updateDate;
+                    property.CreateDate = createDate;
+                    property.UpdateDate = updateDate;
                     // http://issues.umbraco.org/issue/U4-1946
                     property.ResetDirtyProperties(false);
                     properties.Add(property);
@@ -57,12 +57,18 @@ namespace Umbraco.Core.Persistence.Factories
                 {
                     property.EnableChangeTracking();
                 }
-                
+
             }
 
             return properties;
         }
 
+        [Obsolete("Use the static method instead, there's no reason to allocate one of these classes everytime we want to map values")]
+        public IEnumerable<Property> BuildEntity(PropertyDataDto[] dtos)
+        {
+            return BuildEntity(dtos, _compositionTypeProperties, _createDate, _updateDate);
+        }
+
         public IEnumerable<PropertyDataDto> BuildDto(IEnumerable<Property> properties)
         {
             var propertyDataDtos = new List<PropertyDataDto>();

src/Umbraco.Core/Persistence/Factories/UmbracoEntityFactory.cs

@@ -6,6 +6,7 @@ using System.Reflection;
 using Umbraco.Core.Models;
 using Umbraco.Core.Models.EntityBase;
 using Umbraco.Core.Persistence.Repositories;
+using Umbraco.Core.Strings;
 
 namespace Umbraco.Core.Persistence.Factories
 {
@@ -17,7 +18,7 @@ namespace Umbraco.Core.Persistence.Factories
             
             //figure out what extra properties we have that are not on the IUmbracoEntity and add them to additional data
             foreach (var k in originalEntityProperties.Keys
-                .Select(x => new { orig = x, title = x.ConvertCase(StringAliasCaseType.PascalCase) })
+                .Select(x => new { orig = x, title = x.ToCleanString(CleanStringType.PascalCase | CleanStringType.Ascii | CleanStringType.ConvertCase) })
                 .Where(x => entityProps.InvariantContains(x.title) == false))
             {
                 entity.AdditionalData[k.title] = originalEntityProperties[k.orig];
@@ -75,65 +76,6 @@ namespace Umbraco.Core.Persistence.Factories
                 entity.EnableChangeTracking();
             }
         }
-
-        public UmbracoEntity BuildEntity(EntityRepository.UmbracoEntityDto dto)
-        {
-            var entity = new UmbracoEntity(dto.Trashed)
-                             {
-                                 CreateDate = dto.CreateDate,
-                                 CreatorId = dto.UserId.Value,
-                                 Id = dto.NodeId,
-                                 Key = dto.UniqueId,
-                                 Level = dto.Level,
-                                 Name = dto.Text,
-                                 NodeObjectTypeId = dto.NodeObjectType.Value,
-                                 ParentId = dto.ParentId,
-                                 Path = dto.Path,
-                                 SortOrder = dto.SortOrder,
-                                 HasChildren = dto.Children > 0,
-                                 ContentTypeAlias = dto.Alias ?? string.Empty,
-                                 ContentTypeIcon = dto.Icon ?? string.Empty,
-                                 ContentTypeThumbnail = dto.Thumbnail ?? string.Empty,
-                             };
-
-            entity.IsPublished = dto.PublishedVersion != default(Guid) || (dto.NewestVersion != default(Guid) && dto.PublishedVersion == dto.NewestVersion);
-            entity.IsDraft = dto.NewestVersion != default(Guid) && (dto.PublishedVersion == default(Guid) || dto.PublishedVersion != dto.NewestVersion);
-            entity.HasPendingChanges = (dto.PublishedVersion != default(Guid) && dto.NewestVersion != default(Guid)) && dto.PublishedVersion != dto.NewestVersion;
-
-            if (dto.UmbracoPropertyDtos != null)
-            {
-                foreach (var propertyDto in dto.UmbracoPropertyDtos)
-                {
-                    entity.AdditionalData[propertyDto.PropertyAlias] = new UmbracoEntity.EntityProperty
-                    {
-                        PropertyEditorAlias = propertyDto.PropertyEditorAlias,
-                        Value = propertyDto.NTextValue.IsNullOrWhiteSpace()
-                            ? propertyDto.NVarcharValue
-                            : propertyDto.NTextValue.ConvertToJsonIfPossible()
-                    };
-                }
-            }
-
-            return entity;
-        }
-
-        public EntityRepository.UmbracoEntityDto BuildDto(UmbracoEntity entity)
-        {
-            var node = new EntityRepository.UmbracoEntityDto
-                           {
-                               CreateDate = entity.CreateDate,
-                               Level = short.Parse(entity.Level.ToString(CultureInfo.InvariantCulture)),
-                               NodeId = entity.Id,
-                               NodeObjectType = entity.NodeObjectTypeId,
-                               ParentId = entity.ParentId,
-                               Path = entity.Path,
-                               SortOrder = entity.SortOrder,
-                               Text = entity.Name,
-                               Trashed = entity.Trashed,
-                               UniqueId = entity.Key,
-                               UserId = entity.CreatorId
-                           };
-            return node;
-        }
+        
     }
 }

src/Umbraco.Core/Persistence/Mappers/MappingResolver.cs

@@ -31,7 +31,7 @@ namespace Umbraco.Core.Persistence.Mappers
         /// </summary>
         /// <param name="type"></param>
         /// <returns></returns>
-        internal BaseMapper ResolveMapperByType(Type type)
+        public virtual BaseMapper ResolveMapperByType(Type type)
         {
             return _mapperCache.GetOrAdd(type, type1 =>
                 {
@@ -67,7 +67,7 @@ namespace Umbraco.Core.Persistence.Mappers
             return Attempt<BaseMapper>.Succeed(mapper);
         }  
 
-        internal string GetMapping(Type type, string propertyName)
+        public virtual string GetMapping(Type type, string propertyName)
         {
             var mapper = ResolveMapperByType(type);
             var result = mapper.Map(propertyName);

src/Umbraco.Core/Persistence/PetaPocoSqlExtensions.cs

@@ -27,6 +27,7 @@ namespace Umbraco.Core.Persistence
             return sql.From(sqlSyntax.GetQuotedTableName(tableName));
         }
 
+        [Obsolete("Use the overload specifying ISqlSyntaxProvider instead")]
         public static Sql Where<T>(this Sql sql, Expression<Func<T, bool>> predicate)
         {
             var expresionist = new PocoToSqlExpressionVisitor<T>();
@@ -34,6 +35,13 @@ namespace Umbraco.Core.Persistence
             return sql.Where(whereExpression, expresionist.GetSqlParameters());
         }
 
+        public static Sql Where<T>(this Sql sql, Expression<Func<T, bool>> predicate, ISqlSyntaxProvider sqlSyntax)
+        {
+            var expresionist = new PocoToSqlExpressionVisitor<T>(sqlSyntax);
+            var whereExpression = expresionist.Visit(predicate);
+            return sql.Where(whereExpression, expresionist.GetSqlParameters());
+        }
+
         private static string GetFieldName<T>(Expression<Func<T, object>> fieldSelector, ISqlSyntaxProvider sqlSyntax)
         {
             var field = ExpressionHelper.FindProperty(fieldSelector) as PropertyInfo;

src/Umbraco.Core/Persistence/Querying/ExpressionVisitorBase.cs

@@ -581,6 +581,18 @@ namespace Umbraco.Core.Persistence.Querying
                 case "InvariantContains":
                 case "InvariantEquals":
 
+                    //special case, if it is 'Contains' and the argument that Contains is being called on is 
+                    //Enumerable and the methodArgs is the actual member access, then it's an SQL IN clause
+                    if (m.Object == null 
+                        && m.Arguments[0].Type != typeof(string)
+                        && m.Arguments.Count == 2
+                        && methodArgs.Length == 1 
+                        && methodArgs[0].NodeType == ExpressionType.MemberAccess
+                        && TypeHelper.IsTypeAssignableFrom<IEnumerable>(m.Arguments[0].Type))
+                    {
+                        goto case "SqlIn";
+                    }
+
                     string compareValue;
 
                     if (methodArgs[0].NodeType != ExpressionType.Constant)
@@ -597,13 +609,6 @@ namespace Umbraco.Core.Persistence.Querying
                         compareValue = methodArgs[0].ToString();
                     }
 
-                    //special case, if it is 'Contains' and the member that Contains is being called on is not a string, then
-                    // we should be doing an 'In' clause - but we currently do not support this
-                    if (methodArgs[0].Type != typeof(string) && TypeHelper.IsTypeAssignableFrom<IEnumerable>(methodArgs[0].Type))
-                    {
-                        throw new NotSupportedException("An array Contains method is not supported");
-                    }
-
                     //default column type
                     var colType = TextColumnType.NVarchar;
 
@@ -705,29 +710,33 @@ namespace Umbraco.Core.Persistence.Querying
                 //    }
                 //    return string.Format("{0}{1}", r, s);
 
-                //case "In":
+                case "SqlIn":
 
-                //    var member = Expression.Convert(m.Arguments[0], typeof(object));
-                //    var lambda = Expression.Lambda<Func<object>>(member);
-                //    var getter = lambda.Compile();
+                    if (m.Object == null && methodArgs.Length == 1 && methodArgs[0].NodeType == ExpressionType.MemberAccess)
+                    {
+                        var memberAccess = VisitMemberAccess((MemberExpression) methodArgs[0]);
+                        
+                        var member = Expression.Convert(m.Arguments[0], typeof(object));
+                        var lambda = Expression.Lambda<Func<object>>(member);
+                        var getter = lambda.Compile();
 
-                //    var inArgs = (object[])getter();
+                        var inArgs = (IEnumerable)getter();
 
-                //    var sIn = new StringBuilder();
-                //    foreach (var e in inArgs)
-                //    {
-                //        SqlParameters.Add(e);
+                        var sIn = new StringBuilder();
+                        foreach (var e in inArgs)
+                        {
+                            SqlParameters.Add(e);
 
-                //        sIn.AppendFormat("{0}{1}",
-                //                     sIn.Length > 0 ? "," : "",
-                //                                    string.Format("@{0}", SqlParameters.Count - 1));
+                            sIn.AppendFormat("{0}{1}",
+                                sIn.Length > 0 ? "," : "",
+                                string.Format("@{0}", SqlParameters.Count - 1));
+                        }
 
-                //        //sIn.AppendFormat("{0}{1}",
-                //        //             sIn.Length > 0 ? "," : "",
-                //        //                            GetQuotedValue(e, e.GetType()));
-                //    }
+                        return string.Format("{0} IN ({1})", memberAccess, sIn);
+                    }
+
+                    throw new NotSupportedException("SqlIn must contain the member being accessed");
 
-                //    return string.Format("{0} {1} ({2})", r, m.Method.Name, sIn.ToString());
                 //case "Desc":
                 //    return string.Format("{0} DESC", r);
                 //case "Alias":

src/Umbraco.Core/Persistence/Querying/ModelToSqlExpressionVisitor.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Linq.Expressions;
+using Umbraco.Core.Models.EntityBase;
 using Umbraco.Core.Persistence.Mappers;
 using Umbraco.Core.Persistence.SqlSyntax;
 
@@ -12,16 +13,19 @@ namespace Umbraco.Core.Persistence.Querying
     /// <remarks>This object is stateful and cannot be re-used to parse an expression.</remarks>
     internal class ModelToSqlExpressionVisitor<T> : ExpressionVisitorBase
     {
+        private readonly MappingResolver _mappingResolver;
         private readonly BaseMapper _mapper;
 
-        public ModelToSqlExpressionVisitor(ISqlSyntaxProvider sqlSyntax, BaseMapper mapper)
+        public ModelToSqlExpressionVisitor(ISqlSyntaxProvider sqlSyntax, MappingResolver mappingResolver)
             : base(sqlSyntax)
         {
-            _mapper = mapper;
+            _mapper = mappingResolver.ResolveMapperByType(typeof(T));
+            _mappingResolver = mappingResolver;
         }
 
+        [Obsolete("Use the overload the specifies a SqlSyntaxProvider")]
         public ModelToSqlExpressionVisitor()
-            : this(SqlSyntaxContext.SqlSyntaxProvider, MappingResolver.Current.ResolveMapperByType(typeof(T)))
+            : this(SqlSyntaxContext.SqlSyntaxProvider, MappingResolver.Current)
         { }
 
         protected override string VisitMemberAccess(MemberExpression m)
@@ -35,7 +39,7 @@ namespace Umbraco.Core.Persistence.Querying
                 {
                     var field = _mapper.Map(m.Member.Name, true);
                     if (field.IsNullOrWhiteSpace())
-                        throw new InvalidOperationException("The mapper returned an empty field for the member name: " + m.Member.Name);
+                        throw new InvalidOperationException(string.Format("The mapper returned an empty field for the member name: {0} for type: {1}", m.Member.Name, m.Expression.Type));
                     return field;
                 }
                 //already compiled, return
@@ -49,13 +53,42 @@ namespace Umbraco.Core.Persistence.Querying
                 {
                     var field = _mapper.Map(m.Member.Name, true);
                     if (field.IsNullOrWhiteSpace())
-                        throw new InvalidOperationException("The mapper returned an empty field for the member name: " + m.Member.Name);
+                        throw new InvalidOperationException(string.Format("The mapper returned an empty field for the member name: {0} for type: {1}", m.Member.Name, m.Expression.Type));
                     return field;
                 }
                 //already compiled, return
                 return string.Empty;
             }
 
+            if (m.Expression != null 
+                && m.Expression.Type != typeof(T) 
+                && TypeHelper.IsTypeAssignableFrom<IUmbracoEntity>(m.Expression.Type)
+                && EndsWithConstant(m) == false)
+            {
+                //if this is the case, it means we have a sub expression / nested property access, such as: x.ContentType.Alias == "Test";
+                //and since the sub type (x.ContentType) is not the same as x, we need to resolve a mapper for x.ContentType to get it's mapped SQL column
+
+                //don't execute if compiled
+                if (Visited == false)
+                {
+                    var subMapper = _mappingResolver.ResolveMapperByType(m.Expression.Type);
+                    if (subMapper == null)
+                        throw new NullReferenceException("No mapper found for type " + m.Expression.Type);
+                    var field = subMapper.Map(m.Member.Name, true);
+                    if (field.IsNullOrWhiteSpace())
+                        throw new InvalidOperationException(string.Format("The mapper returned an empty field for the member name: {0} for type: {1}", m.Member.Name, m.Expression.Type));
+                    return field;
+                }
+                //already compiled, return
+                return string.Empty;
+            }
+
+            //TODO: When m.Expression.NodeType == ExpressionType.Constant and it's an expression like: content => aliases.Contains(content.ContentType.Alias);
+            // then an SQL parameter will be added for aliases as an array, however in SqlIn on the subclass it will manually add these SqlParameters anyways,
+            // however the query will still execute because the SQL that is written will only contain the correct indexes of SQL parameters, this would be ignored,
+            // I'm just unsure right now due to time constraints how to make it correct. It won't matter right now and has been working already with this bug but I've
+            // only just discovered what it is actually doing.
+
             var member = Expression.Convert(m, typeof(object));
             var lambda = Expression.Lambda<Func<object>>(member);
             var getter = lambda.Compile();
@@ -70,5 +103,24 @@ namespace Umbraco.Core.Persistence.Querying
             return string.Empty;
 
         }
+
+        /// <summary>
+        /// Determines if the MemberExpression ends in a Constant value
+        /// </summary>
+        /// <param name="m"></param>
+        /// <returns></returns>
+        private bool EndsWithConstant(MemberExpression m)
+        {
+            Expression expr = m;
+            
+            while (expr is MemberExpression)
+            {
+                var memberExpr = expr as MemberExpression;
+                expr = memberExpr.Expression;
+            }
+            
+            var constExpr = expr as ConstantExpression;
+            return constExpr != null;
+        }
     }
 }

src/Umbraco.Core/Persistence/Querying/PocoToSqlExpressionVisitor.cs

@@ -14,12 +14,19 @@ namespace Umbraco.Core.Persistence.Querying
     {
         private readonly Database.PocoData _pd;
 
-        public PocoToSqlExpressionVisitor()
-            : base(SqlSyntaxContext.SqlSyntaxProvider)
+
+        public PocoToSqlExpressionVisitor(ISqlSyntaxProvider syntaxProvider)
+            : base(syntaxProvider)
         {
             _pd = new Database.PocoData(typeof(T));
         }
 
+        [Obsolete("Use the overload the specifies a SqlSyntaxProvider")]
+        public PocoToSqlExpressionVisitor()
+            : this(SqlSyntaxContext.SqlSyntaxProvider)
+        {            
+        }
+
         protected override string VisitMemberAccess(MemberExpression m)
         {
             if (m.Expression != null &&

src/Umbraco.Core/Persistence/Querying/SqlExpressionExtensions.cs

@@ -1,4 +1,5 @@
-using System;
+using System.Collections.Generic;
+using System.Linq;
 using System.Text.RegularExpressions;
 
 namespace Umbraco.Core.Persistence.Querying
@@ -6,8 +7,13 @@ namespace Umbraco.Core.Persistence.Querying
     /// <summary>
     /// String extension methods used specifically to translate into SQL
     /// </summary>
-    internal static class SqlStringExtensions
+    internal static class SqlExpressionExtensions
     {
+        public static bool SqlIn<T>(this IEnumerable<T> collection, T item)
+        {
+            return collection.Contains(item);
+        }
+
         public static bool SqlWildcard(this string str, string txt, TextColumnType columnType)
         {
             var wildcardmatch = new Regex("^" + Regex.Escape(txt).

src/Umbraco.Core/Persistence/Repositories/BaseQueryType.cs

@@ -0,0 +1,31 @@
+namespace Umbraco.Core.Persistence.Repositories
+{
+    internal enum BaseQueryType
+    {
+        /// <summary>
+        /// A query to return all information for a single item
+        /// </summary>
+        /// <remarks>
+        /// In some cases this will be the same as <see cref="FullMultiple"/>
+        /// </remarks>
+        FullSingle,
+
+        /// <summary>
+        /// A query to return all information for multiple items
+        /// </summary>
+        /// <remarks>
+        /// In some cases this will be the same as <see cref="FullSingle"/>
+        /// </remarks>
+        FullMultiple,
+
+        /// <summary>
+        /// A query to return the ids for items
+        /// </summary>
+        Ids,
+
+        /// <summary>
+        /// A query to return the count for items 
+        /// </summary>
+        Count
+    }
+}

src/Umbraco.Core/Persistence/Repositories/ContentRepository.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Collections.ObjectModel;
 using System.Globalization;
 using System.Linq;
 using System.Xml;
@@ -53,9 +54,9 @@ namespace Umbraco.Core.Persistence.Repositories
 
         protected override IContent PerformGet(int id)
         {
-            var sql = GetBaseQuery(false)
+            var sql = GetBaseQuery(BaseQueryType.FullSingle)
                 .Where(GetBaseWhereClause(), new { Id = id })
-                .Where<DocumentDto>(x => x.Newest)
+                .Where<DocumentDto>(x => x.Newest, SqlSyntax)
                 .OrderByDescending<ContentVersionDto>(x => x.VersionDate, SqlSyntax);
 
             var dto = Database.Fetch<DocumentDto, ContentVersionDto, ContentDto, NodeDto, DocumentPublishedReadOnlyDto>(SqlSyntax.SelectTop(sql, 1)).FirstOrDefault();
@@ -63,70 +64,112 @@ namespace Umbraco.Core.Persistence.Repositories
             if (dto == null)
                 return null;
 
-            var content = CreateContentFromDto(dto, dto.ContentVersionDto.VersionId, sql);
+            var content = CreateContentFromDto(dto, sql);
 
             return content;
         }
 
         protected override IEnumerable<IContent> PerformGetAll(params int[] ids)
         {
-            var sql = GetBaseQuery(false);
-            if (ids.Any())
+            Func<Sql, Sql> translate = s =>
             {
-                sql.Where("umbracoNode.id in (@ids)", new { ids });
-            }
+                if (ids.Any())
+                {
+                    s.Where("umbracoNode.id in (@ids)", new { ids });
+                }
+                //we only want the newest ones with this method
+                s.Where<DocumentDto>(x => x.Newest, SqlSyntax);
+                return s;
+            };
+            
+            var sqlBaseFull = GetBaseQuery(BaseQueryType.FullMultiple);
+            var sqlBaseIds = GetBaseQuery(BaseQueryType.Ids);
 
-            //we only want the newest ones with this method
-            sql.Where<DocumentDto>(x => x.Newest);
-
-            return ProcessQuery(sql);
+            return ProcessQuery(translate(sqlBaseFull), new PagingSqlQuery(translate(sqlBaseIds)));
         }
 
         protected override IEnumerable<IContent> PerformGetByQuery(IQuery<IContent> query)
         {
-            var sqlClause = GetBaseQuery(false);
-            var translator = new SqlTranslator<IContent>(sqlClause, query);
-            var sql = translator.Translate()
-                                .Where<DocumentDto>(x => x.Newest)
-                                .OrderByDescending<ContentVersionDto>(x => x.VersionDate)
-                                .OrderBy<NodeDto>(x => x.SortOrder);
+            var sqlBaseFull = GetBaseQuery(BaseQueryType.FullMultiple);
+            var sqlBaseIds = GetBaseQuery(BaseQueryType.Ids);
 
-            return ProcessQuery(sql);
+            Func<SqlTranslator<IContent>, Sql> translate = (translator) =>
+            {
+                return translator.Translate()
+                    .Where<DocumentDto>(x => x.Newest, SqlSyntax)
+                    .OrderByDescending<ContentVersionDto>(x => x.VersionDate, SqlSyntax)
+                    .OrderBy<NodeDto>(x => x.SortOrder, SqlSyntax);
+            };
+
+            var translatorFull = new SqlTranslator<IContent>(sqlBaseFull, query);
+            var translatorIds = new SqlTranslator<IContent>(sqlBaseIds, query);
+
+            return ProcessQuery(translate(translatorFull), new PagingSqlQuery(translate(translatorIds)));
         }
 
         #endregion        
 
         #region Overrides of PetaPocoRepositoryBase<IContent>
 
-
-        protected override Sql GetBaseQuery(bool isCount)
+        /// <summary>
+        /// Returns the base query to return Content
+        /// </summary>
+        /// <param name="queryType"></param>
+        /// <returns></returns>
+        /// <remarks>
+        /// Content queries will differ depending on what needs to be returned:
+        /// * FullSingle: When querying for a single document, this will include the Outer join to fetch the content item's published version info
+        /// * FullMultiple: When querying for multiple documents, this will exclude the Outer join to fetch the content item's published version info - this info would need to be fetched separately
+        /// * Ids: This would essentially be the same as FullMultiple however the columns specified will only return the Ids for the documents
+        /// * Count: A query to return the count for documents
+        /// </remarks>
+        protected override Sql GetBaseQuery(BaseQueryType queryType)
         {
-            var sqlx = string.Format("LEFT OUTER JOIN {0} {1} ON ({1}.{2}={0}.{2} AND {1}.{3}=1)",
+            var sql = new Sql();
+            sql.Select(queryType == BaseQueryType.Count ? "COUNT(*)" : (queryType == BaseQueryType.Ids ? "cmsDocument.nodeId" : "*"))
+                .From<DocumentDto>(SqlSyntax)
+                .InnerJoin<ContentVersionDto>(SqlSyntax)
+                .On<DocumentDto, ContentVersionDto>(SqlSyntax, left => left.VersionId, right => right.VersionId)
+                .InnerJoin<ContentDto>(SqlSyntax)
+                .On<ContentVersionDto, ContentDto>(SqlSyntax, left => left.NodeId, right => right.NodeId)
+                .InnerJoin<NodeDto>(SqlSyntax)
+                .On<ContentDto, NodeDto>(SqlSyntax, left => left.NodeId, right => right.NodeId);
+            //TODO: IF we want to enable querying on content type information this will need to be joined
+            //.InnerJoin<ContentTypeDto>(SqlSyntax)
+            //.On<ContentDto, ContentTypeDto>(SqlSyntax, left => left.ContentTypeId, right => right.NodeId, SqlSyntax);
+
+            if (queryType == BaseQueryType.FullSingle)
+            {
+                //The only reason we apply this left outer join is to be able to pull back the DocumentPublishedReadOnlyDto
+                //information with the entire data set, so basically this will get both the latest document and also it's published
+                //version if it has one. When performing a count or when retrieving Ids like in paging, this is unecessary 
+                //and causes huge performance overhead for the SQL server, especially when sorting the result. 
+                //We also don't include this outer join when querying for multiple entities since it is much faster to fetch this information
+                //in a separate query. For a single entity this is ok.
+
+                var sqlx = string.Format("LEFT OUTER JOIN {0} {1} ON ({1}.{2}={0}.{2} AND {1}.{3}=1)",
                 SqlSyntax.GetQuotedTableName("cmsDocument"),
                 SqlSyntax.GetQuotedTableName("cmsDocument2"),
                 SqlSyntax.GetQuotedColumnName("nodeId"),
                 SqlSyntax.GetQuotedColumnName("published"));
 
-            var sql = new Sql();
-            sql.Select(isCount ? "COUNT(*)" : "*")
-                .From<DocumentDto>()
-                .InnerJoin<ContentVersionDto>()
-                .On<DocumentDto, ContentVersionDto>(left => left.VersionId, right => right.VersionId)
-                .InnerJoin<ContentDto>()
-                .On<ContentVersionDto, ContentDto>(left => left.NodeId, right => right.NodeId)
-                .InnerJoin<NodeDto>()
-                .On<ContentDto, NodeDto>(left => left.NodeId, right => right.NodeId)
-
                 // cannot do this because PetaPoco does not know how to alias the table
                 //.LeftOuterJoin<DocumentPublishedReadOnlyDto>()
                 //.On<DocumentDto, DocumentPublishedReadOnlyDto>(left => left.NodeId, right => right.NodeId)
                 // so have to rely on writing our own SQL
-                .Append(sqlx/*, new { @published = true }*/)
+                sql.Append(sqlx /*, new { @published = true }*/);
+            }
+
+            sql.Where<NodeDto>(x => x.NodeObjectType == NodeObjectTypeId, SqlSyntax);
 
-                .Where<NodeDto>(x => x.NodeObjectType == NodeObjectTypeId);
             return sql;
         }
 
+        protected override Sql GetBaseQuery(bool isCount)
+        {
+            return GetBaseQuery(isCount ? BaseQueryType.Count : BaseQueryType.FullSingle);
+        }
+
         protected override string GetBaseWhereClause()
         {
             return "umbracoNode.id = @Id";
@@ -173,20 +216,32 @@ namespace Umbraco.Core.Persistence.Repositories
             // not bring much safety - so this reverts to updating each record individually,
             // and it may be slower in the end, but should be more resilient.
 
-            var baseId = 0;
             var contentTypeIdsA = contentTypeIds == null ? new int[0] : contentTypeIds.ToArray();
+
+            Func<int, Sql, Sql> translate = (bId, sql) =>
+            {
+                if (contentTypeIdsA.Length > 0)
+                {
+                    sql.WhereIn<ContentDto>(x => x.ContentTypeId, contentTypeIdsA, SqlSyntax);
+                }
+
+                sql
+                    .Where<NodeDto>(x => x.NodeId > bId && x.Trashed == false, SqlSyntax)
+                    .Where<DocumentDto>(x => x.Published, SqlSyntax)
+                    .OrderBy<NodeDto>(x => x.NodeId, SqlSyntax);
+
+                return sql;
+            };
+
+            var baseId = 0;
+            
             while (true)
             {
                 // get the next group of nodes
-                var query = GetBaseQuery(false);
-                if (contentTypeIdsA.Length > 0)
-                    query = query
-                        .WhereIn<ContentDto>(x => x.ContentTypeId, contentTypeIdsA, SqlSyntax);
-                query = query
-                    .Where<NodeDto>(x => x.NodeId > baseId && x.Trashed == false)
-                    .Where<DocumentDto>(x => x.Published)
-                    .OrderBy<NodeDto>(x => x.NodeId, SqlSyntax);
-                var xmlItems = ProcessQuery(SqlSyntax.SelectTop(query, groupSize))
+                var sqlFull = translate(baseId, GetBaseQuery(BaseQueryType.FullMultiple));
+                var sqlIds = translate(baseId, GetBaseQuery(BaseQueryType.Ids));
+
+                var xmlItems = ProcessQuery(SqlSyntax.SelectTop(sqlFull, groupSize), new PagingSqlQuery(SqlSyntax.SelectTop(sqlIds, groupSize)))
                     .Select(x => new ContentXmlDto { NodeId = x.Id, Xml = serializer(x).ToString() })
                     .ToList();
 
@@ -206,30 +261,70 @@ namespace Umbraco.Core.Persistence.Repositories
                         Logger.Error<MediaRepository>("Could not rebuild XML for nodeId=" + xmlItem.NodeId, e);
                     }
                 }
-                baseId = xmlItems.Last().NodeId;
+                baseId = xmlItems[xmlItems.Count - 1].NodeId;
             }
+
+            //now delete the items that shouldn't be there
+            var sqlAllIds = translate(0, GetBaseQuery(BaseQueryType.Ids));
+            var allContentIds = Database.Fetch<int>(sqlAllIds);
+            var docObjectType = Guid.Parse(Constants.ObjectTypes.Document);
+            var xmlIdsQuery = new Sql()
+                .Select("DISTINCT cmsContentXml.nodeId")
+                .From<ContentXmlDto>(SqlSyntax)
+                .InnerJoin<NodeDto>(SqlSyntax)
+                .On<ContentXmlDto, NodeDto>(SqlSyntax, left => left.NodeId, right => right.NodeId);
+
+            if (contentTypeIdsA.Length > 0)
+            {
+                xmlIdsQuery.InnerJoin<ContentDto>(SqlSyntax)
+                    .On<ContentDto, NodeDto>(SqlSyntax, left => left.NodeId, right => right.NodeId)
+                    .InnerJoin<ContentTypeDto>(SqlSyntax)
+                    .On<ContentTypeDto, ContentDto>(SqlSyntax, left => left.NodeId, right => right.ContentTypeId)
+                    .WhereIn<ContentDto>(x => x.ContentTypeId, contentTypeIdsA, SqlSyntax);
+            }
+
+            xmlIdsQuery.Where<NodeDto>(dto => dto.NodeObjectType == docObjectType, SqlSyntax);
+            
+            var allXmlIds = Database.Fetch<int>(xmlIdsQuery);
+
+            var toRemove = allXmlIds.Except(allContentIds).ToArray();
+            if (toRemove.Length > 0)
+            {
+                foreach (var idGroup in toRemove.InGroupsOf(2000))
+                {
+                    Database.Execute("DELETE FROM cmsContentXml WHERE nodeId IN (@ids)", new { ids = idGroup });
+                }                
+            }
+                
         }
 
         public override IEnumerable<IContent> GetAllVersions(int id)
         {
-            var sql = GetBaseQuery(false)
-                .Where(GetBaseWhereClause(), new { Id = id })
-                .OrderByDescending<ContentVersionDto>(x => x.VersionDate, SqlSyntax);
-            return ProcessQuery(sql, true);
+            Func<Sql, Sql> translate = s =>
+            {
+                return s.Where(GetBaseWhereClause(), new {Id = id})
+                    .OrderByDescending<ContentVersionDto>(x => x.VersionDate, SqlSyntax);
+            };
+
+            var sqlFull = translate(GetBaseQuery(BaseQueryType.FullMultiple));
+            var sqlIds = translate(GetBaseQuery(BaseQueryType.Ids));
+            
+            return ProcessQuery(sqlFull, new PagingSqlQuery(sqlIds), true,  includeAllVersions:true);
         }
 
         public override IContent GetByVersion(Guid versionId)
         {
-            var sql = GetBaseQuery(false);
+            var sql = GetBaseQuery(BaseQueryType.FullSingle);
+            //TODO: cmsContentVersion.VersionId has a Unique Index constraint applied, seems silly then to also add OrderByDescending since it would be impossible to return more than one.
             sql.Where("cmsContentVersion.VersionId = @VersionId", new { VersionId = versionId });
-            sql.OrderByDescending<ContentVersionDto>(x => x.VersionDate);
+            sql.OrderByDescending<ContentVersionDto>(x => x.VersionDate, SqlSyntax);
 
             var dto = Database.Fetch<DocumentDto, ContentVersionDto, ContentDto, NodeDto, DocumentPublishedReadOnlyDto>(sql).FirstOrDefault();
 
             if (dto == null)
                 return null;
 
-            var content = CreateContentFromDto(dto, versionId, sql);
+            var content = CreateContentFromDto(dto, sql);
 
             return content;
         }
@@ -238,10 +333,11 @@ namespace Umbraco.Core.Persistence.Repositories
         {
             var sql = new Sql()
                 .Select("*")
-                .From<DocumentDto>()
-                .InnerJoin<ContentVersionDto>().On<ContentVersionDto, DocumentDto>(left => left.VersionId, right => right.VersionId)
-                .Where<ContentVersionDto>(x => x.VersionId == versionId)
-                .Where<DocumentDto>(x => x.Newest != true);
+                .From<DocumentDto>(SqlSyntax)
+                .InnerJoin<ContentVersionDto>(SqlSyntax)
+                .On<ContentVersionDto, DocumentDto>(SqlSyntax, left => left.VersionId, right => right.VersionId)
+                .Where<ContentVersionDto>(x => x.VersionId == versionId, SqlSyntax)
+                .Where<DocumentDto>(x => x.Newest != true, SqlSyntax);
             var dto = Database.Fetch<DocumentDto, ContentVersionDto>(sql).FirstOrDefault();
 
             if (dto == null) return;
@@ -259,7 +355,8 @@ namespace Umbraco.Core.Persistence.Repositories
             var sql = new Sql()
                 .Select("*")
                 .From<DocumentDto>()
-                .InnerJoin<ContentVersionDto>().On<ContentVersionDto, DocumentDto>(left => left.VersionId, right => right.VersionId)
+                .InnerJoin<ContentVersionDto>()
+                .On<ContentVersionDto, DocumentDto>(left => left.VersionId, right => right.VersionId)
                 .Where<ContentVersionDto>(x => x.NodeId == id)
                 .Where<ContentVersionDto>(x => x.VersionDate < versionDate)
                 .Where<DocumentDto>(x => x.Newest != true);
@@ -342,6 +439,7 @@ namespace Umbraco.Core.Persistence.Repositories
 
             //Update with new correct path
             nodeDto.Path = string.Concat(parent.Path, ",", nodeDto.NodeId);
+            nodeDto.ValidatePathWithException();
             Database.Update(nodeDto);
 
             //Update entity with correct values
@@ -479,6 +577,7 @@ namespace Umbraco.Core.Persistence.Repositories
 
             //Updates the (base) node data - umbracoNode
             var nodeDto = dto.ContentVersionDto.ContentDto.NodeDto;
+            nodeDto.ValidatePathWithException();
             var o = Database.Update(nodeDto);
 
             //Only update this DTO if the contentType has actually changed
@@ -497,6 +596,7 @@ namespace Umbraco.Core.Persistence.Repositories
             //if (((ICanBeDirty)entity).IsPropertyDirty("Published") && (entity.Published || publishedState == PublishedState.Unpublished))
             if (entity.ShouldClearPublishedFlagForPreviousVersions(publishedState, shouldCreateNewVersion))
             {
+                //TODO: This perf can be improved, it could easily be UPDATE WHERE.... (one SQL call instead of many)
                 var publishedDocs = Database.Fetch<DocumentDto>("WHERE nodeId = @Id AND published = @IsPublished", new { Id = entity.Id, IsPublished = true });
                 foreach (var doc in publishedDocs)
                 {
@@ -510,6 +610,7 @@ namespace Umbraco.Core.Persistence.Repositories
             }
 
             //Look up (newest) entries by id in cmsDocument table to set newest = false
+            //TODO: This perf can be improved, it could easily be UPDATE WHERE.... (one SQL call instead of many)
             var documentDtos = Database.Fetch<DocumentDto>("WHERE nodeId = @Id AND newest = @IsNewest", new { Id = entity.Id, IsNewest = true });
             foreach (var documentDto in documentDtos)
             {
@@ -614,21 +715,27 @@ namespace Umbraco.Core.Persistence.Repositories
 
         public IEnumerable<IContent> GetByPublishedVersion(IQuery<IContent> query)
         {
+            Func<SqlTranslator<IContent>, Sql> translate = t =>
+            {
+                return t.Translate()
+                    .Where<DocumentDto>(x => x.Published, SqlSyntax)
+                    .OrderBy<NodeDto>(x => x.Level, SqlSyntax)
+                    .OrderBy<NodeDto>(x => x.SortOrder, SqlSyntax);
+            };
+
             // we WANT to return contents in top-down order, ie parents should come before children
             // ideal would be pure xml "document order" which can be achieved with:
             // ORDER BY substring(path, 1, len(path) - charindex(',', reverse(path))), sortOrder
             // but that's probably an overkill - sorting by level,sortOrder should be enough
 
-            var sqlClause = GetBaseQuery(false);
-            var translator = new SqlTranslator<IContent>(sqlClause, query);
-            var sql = translator.Translate()
-                                .Where<DocumentDto>(x => x.Published)
-                                .OrderBy<NodeDto>(x => x.Level, SqlSyntax)
-                                .OrderBy<NodeDto>(x => x.SortOrder, SqlSyntax);
+            var sqlFull = GetBaseQuery(BaseQueryType.FullMultiple);
+            var translatorFull = new SqlTranslator<IContent>(sqlFull, query);
+            var sqlIds = GetBaseQuery(BaseQueryType.Ids);
+            var translatorIds = new SqlTranslator<IContent>(sqlIds, query);
 
-            return ProcessQuery(sql, true);
+            return ProcessQuery(translate(translatorFull), new PagingSqlQuery(translate(translatorIds)), true);
         }
-
+        
         /// <summary>
         /// This builds the Xml document used for the XML cache
         /// </summary>
@@ -660,10 +767,14 @@ namespace Umbraco.Core.Persistence.Repositories
             parent.Attributes.Append(pIdAtt);
             xmlDoc.AppendChild(parent);
 
-            const string sql = @"select umbracoNode.id, umbracoNode.parentID, umbracoNode.sortOrder, cmsContentXml.xml, umbracoNode.level from umbracoNode
+            //Ensure that only nodes that have published versions are selected
+            var sql = string.Format(@"select umbracoNode.id, umbracoNode.parentID, umbracoNode.sortOrder, cmsContentXml.{0}, umbracoNode.{1} from umbracoNode
 inner join cmsContentXml on cmsContentXml.nodeId = umbracoNode.id and umbracoNode.nodeObjectType = @type
 where umbracoNode.id in (select cmsDocument.nodeId from cmsDocument where cmsDocument.published = 1)
-order by umbracoNode.level, umbracoNode.parentID, umbracoNode.sortOrder";
+order by umbracoNode.{2}, umbracoNode.parentID, umbracoNode.sortOrder",
+                SqlSyntax.GetQuotedColumnName("xml"),
+                SqlSyntax.GetQuotedColumnName("level"),
+                SqlSyntax.GetQuotedColumnName("level"));
 
             XmlElement last = null;
 
@@ -714,13 +825,8 @@ order by umbracoNode.level, umbracoNode.parentID, umbracoNode.sortOrder";
 
         public void ClearPublished(IContent content)
         {
-            // race cond!
-            var documentDtos = Database.Fetch<DocumentDto>("WHERE nodeId=@id AND published=@published", new { id = content.Id, published = true });
-            foreach (var documentDto in documentDtos)
-            {
-                documentDto.Published = false;
-                Database.Update(documentDto);
-            }
+            var sql = "UPDATE cmsDocument SET published=0 WHERE nodeId=@id AND published=1";
+            Database.Execute(sql, new {id = content.Id});
         }
 
         /// <summary>
@@ -800,9 +906,9 @@ order by umbracoNode.level, umbracoNode.parentID, umbracoNode.sortOrder";
             
             Func<Tuple<string, object[]>> filterCallback = () => new Tuple<string, object[]>(filterSql.SQL, filterSql.Arguments);
 
-            return GetPagedResultsByQuery<DocumentDto, Content>(query, pageIndex, pageSize, out totalRecords,
+            return GetPagedResultsByQuery<DocumentDto>(query, pageIndex, pageSize, out totalRecords,
                 new Tuple<string, string>("cmsDocument", "nodeId"),
-                sql => ProcessQuery(sql), orderBy, orderDirection, orderBySystemField,
+                (sqlFull, pagingSqlQuery) => ProcessQuery(sqlFull, pagingSqlQuery), orderBy, orderDirection, orderBySystemField,
                 filterCallback);
 
         }
@@ -833,50 +939,110 @@ order by umbracoNode.level, umbracoNode.parentID, umbracoNode.sortOrder";
             return base.GetDatabaseFieldNameForOrderBy(orderBy);
         }
 
-        private IEnumerable<IContent> ProcessQuery(Sql sql, bool withCache = false)
+        /// <summary>
+        /// This is the underlying method that processes most queries for this repository
+        /// </summary>
+        /// <param name="sqlFull">
+        /// The FullMultiple SQL without the outer join to return all data required to create an IContent excluding it's published state data which this will query separately
+        /// </param>
+        /// <param name="pagingSqlQuery">
+        /// The Id SQL without the outer join to just return all document ids - used to process the properties for the content item
+        /// </param>
+        /// <param name="withCache"></param>
+        /// <param name="includeAllVersions">
+        /// Generally when querying for content we only want to return the most recent version of the content item, however in some cases like when 
+        /// we want to return all versions of a content item, we can't simply return the latest
+        /// </param>
+        /// <returns></returns>
+        private IEnumerable<IContent> ProcessQuery(Sql sqlFull, PagingSqlQuery pagingSqlQuery, bool withCache = false, bool includeAllVersions = false)
         {
             // fetch returns a list so it's ok to iterate it in this method
-            var dtos = Database.Fetch<DocumentDto, ContentVersionDto, ContentDto, NodeDto, DocumentPublishedReadOnlyDto>(sql);
+            var dtos = Database.Fetch<DocumentDto, ContentVersionDto, ContentDto, NodeDto>(sqlFull);
             if (dtos.Count == 0) return Enumerable.Empty<IContent>();
+            
+            //Go and get all of the published version data separately for this data, this is because when we are querying
+            //for multiple content items we don't include the outer join to fetch this data in the same query because
+            //it is insanely slow. Instead we just fetch the published version data separately in one query.
 
-            var content = new IContent[dtos.Count];
-            var defs = new List<DocumentDefinition>();
-            var templateIds = new List<int>();
-
-            for (var i = 0; i < dtos.Count; i++)
+            //we need to parse the original SQL statement and reduce the columns to just cmsDocument.nodeId so that we can use
+            // the statement to go get the published data for all of the items by using an inner join
+            var parsedOriginalSql = "SELECT cmsDocument.nodeId " + sqlFull.SQL.Substring(sqlFull.SQL.IndexOf("FROM", StringComparison.Ordinal));
+            //now remove everything from an Orderby clause and beyond
+            if (parsedOriginalSql.InvariantContains("ORDER BY "))
             {
-                var dto = dtos[i];
+                parsedOriginalSql = parsedOriginalSql.Substring(0, parsedOriginalSql.LastIndexOf("ORDER BY ", StringComparison.Ordinal));
+            }            
+
+            //order by update date DESC, if there is corrupted published flags we only want the latest!
+            var publishedSql = new Sql(@"SELECT cmsDocument.nodeId, cmsDocument.published, cmsDocument.versionId, cmsDocument.newest
+FROM cmsDocument INNER JOIN cmsContentVersion ON cmsContentVersion.VersionId = cmsDocument.versionId
+WHERE cmsDocument.published = 1 AND cmsDocument.nodeId IN 
+(" + parsedOriginalSql + @")
+ORDER BY cmsContentVersion.id DESC
+", sqlFull.Arguments);
+
+            //go and get the published version data, we do a Query here and not a Fetch so we are
+            //not allocating a whole list to memory just to allocate another list in memory since
+            //we are assigning this data to a keyed collection for fast lookup below
+            var publishedData = Database.Query<DocumentPublishedReadOnlyDto>(publishedSql);
+            var publishedDataCollection = new DocumentPublishedReadOnlyDtoCollection();
+            foreach (var publishedDto in publishedData)
+            {
+                //double check that there's no corrupt db data, there should only be a single published item
+                if (publishedDataCollection.Contains(publishedDto.NodeId) == false)
+                    publishedDataCollection.Add(publishedDto);
+            }
+
+            //This is a tuple list identifying if the content item came from the cache or not
+            var content = new List<Tuple<IContent, bool>>();
+            var defs = new DocumentDefinitionCollection(includeAllVersions);
+            var templateIds = new List<int>();
+            
+            //track the looked up content types, even though the content types are cached
+            // they still need to be deep cloned out of the cache and we don't want to add
+            // the overhead of deep cloning them on every item in this loop
+            var contentTypes = new Dictionary<int, IContentType>();
+            
+            foreach (var dto in dtos)
+            {
+                DocumentPublishedReadOnlyDto publishedDto;
+                publishedDataCollection.TryGetValue(dto.NodeId, out publishedDto);
 
                 // if the cache contains the published version, use it
                 if (withCache)
                 {
                     var cached = RuntimeCache.GetCacheItem<IContent>(GetCacheIdKey<IContent>(dto.NodeId));
-                    //only use this cached version if the dto returned is also the publish version, they must match
-                    if (cached != null && cached.Published && dto.Published)
+                    //only use this cached version if the dto returned is also the publish version, they must match and be teh same version
+                    if (cached != null && cached.Version == dto.VersionId && cached.Published && dto.Published)
                     {
-                        content[i] = cached;
+                        content.Add(new Tuple<IContent, bool>(cached, true));
                         continue;
                     }
                 }
 
                 // else, need to fetch from the database
                 // content type repository is full-cache so OK to get each one independently
-                var contentType = _contentTypeRepository.Get(dto.ContentVersionDto.ContentDto.ContentTypeId);
-                var factory = new ContentFactory(contentType, NodeObjectTypeId, dto.NodeId);
-                content[i] = factory.BuildEntity(dto);
 
-                // need template
-                if (dto.TemplateId.HasValue && dto.TemplateId.Value > 0)
-                    templateIds.Add(dto.TemplateId.Value);
+                IContentType contentType;
+                if (contentTypes.ContainsKey(dto.ContentVersionDto.ContentDto.ContentTypeId))
+                {
+                    contentType = contentTypes[dto.ContentVersionDto.ContentDto.ContentTypeId];
+                }
+                else
+                {
+                    contentType = _contentTypeRepository.Get(dto.ContentVersionDto.ContentDto.ContentTypeId);
+                    contentTypes[dto.ContentVersionDto.ContentDto.ContentTypeId] = contentType;
+                }
 
-                // need properties
-                defs.Add(new DocumentDefinition(
-                    dto.NodeId,
-                    dto.VersionId,
-                    dto.ContentVersionDto.VersionDate,
-                    dto.ContentVersionDto.ContentDto.NodeDto.CreateDate,
-                    contentType
-                ));
+                // track the definition and if it's successfully added or updated then processed
+                if (defs.AddOrUpdate(new DocumentDefinition(dto, contentType)))
+                {
+                    // assign template
+                    if (dto.TemplateId.HasValue && dto.TemplateId.Value > 0)
+                        templateIds.Add(dto.TemplateId.Value);
+
+                    content.Add(new Tuple<IContent, bool>(ContentFactory.BuildEntity(dto, contentType, publishedDto), false));
+                }
             }
 
             // load all required templates in 1 query
@@ -884,45 +1050,44 @@ order by umbracoNode.level, umbracoNode.parentID, umbracoNode.sortOrder";
                 .ToDictionary(x => x.Id, x => x);
 
             // load all properties for all documents from database in 1 query
-            var propertyData = GetPropertyCollection(sql, defs);
+            var propertyData = GetPropertyCollection(pagingSqlQuery, defs);
 
-            // assign
-            var dtoIndex = 0;
-            foreach (var def in defs)
+            // assign template and property data
+            foreach (var contentItem in content)
             {
-                // move to corresponding item (which has to exist)
-                while (dtos[dtoIndex].NodeId != def.Id) dtoIndex++;
+                var cc = contentItem.Item1;
+                var fromCache = contentItem.Item2;
+
+                //if this has come from cache, we do not need to build up it's structure
+                if (fromCache) continue;
+
+                var def = defs[includeAllVersions ? (ValueType)cc.Version : cc.Id];
 
-                // complete the item
-                var cc = content[dtoIndex];
-                var dto = dtos[dtoIndex];
                 ITemplate template = null;
-                if (dto.TemplateId.HasValue)
-                    templates.TryGetValue(dto.TemplateId.Value, out template); // else null
+                if (def.DocumentDto.TemplateId.HasValue)
+                    templates.TryGetValue(def.DocumentDto.TemplateId.Value, out template); // else null
                 cc.Template = template;
-                cc.Properties = propertyData[cc.Id];
+                cc.Properties = propertyData[cc.Version];
 
                 //on initial construction we don't want to have dirty properties tracked
                 // http://issues.umbraco.org/issue/U4-1946
-                ((Entity) cc).ResetDirtyProperties(false);
+                cc.ResetDirtyProperties(false);
             }
 
-            return content;
+            return content.Select(x => x.Item1).ToArray();
         }
 
         /// <summary>
         /// Private method to create a content object from a DocumentDto, which is used by Get and GetByVersion.
         /// </summary>
         /// <param name="dto"></param>
-        /// <param name="versionId"></param>
         /// <param name="docSql"></param>
         /// <returns></returns>
-        private IContent CreateContentFromDto(DocumentDto dto, Guid versionId, Sql docSql)
+        private IContent CreateContentFromDto(DocumentDto dto, Sql docSql)
         {
             var contentType = _contentTypeRepository.Get(dto.ContentVersionDto.ContentDto.ContentTypeId);
 
-            var factory = new ContentFactory(contentType, NodeObjectTypeId, dto.NodeId);
-            var content = factory.BuildEntity(dto);
+            var content = ContentFactory.BuildEntity(dto, contentType);
 
             //Check if template id is set on DocumentDto, and get ITemplate if it is.
             if (dto.TemplateId.HasValue && dto.TemplateId.Value > 0)
@@ -930,11 +1095,11 @@ order by umbracoNode.level, umbracoNode.parentID, umbracoNode.sortOrder";
                 content.Template = _templateRepository.Get(dto.TemplateId.Value);
             }
 
-            var docDef = new DocumentDefinition(dto.NodeId, versionId, content.UpdateDate, content.CreateDate, contentType);
+            var docDef = new DocumentDefinition(dto, contentType);
 
             var properties = GetPropertyCollection(docSql, new[] { docDef });
 
-            content.Properties = properties[dto.NodeId];
+            content.Properties = properties[dto.VersionId];
 
             //on initial construction we don't want to have dirty properties tracked
             // http://issues.umbraco.org/issue/U4-1946
@@ -973,7 +1138,7 @@ order by umbracoNode.level, umbracoNode.parentID, umbracoNode.sortOrder";
 
             return currentName;
         }
-
+        
         /// <summary>
         /// Dispose disposable properties
         /// </summary>
@@ -988,5 +1153,26 @@ order by umbracoNode.level, umbracoNode.parentID, umbracoNode.sortOrder";
             _contentPreviewRepository.Dispose();
             _contentXmlRepository.Dispose();
         }
+
+        /// <summary>
+        /// A keyed collection for fast lookup when retrieving a separate list of published version data
+        /// </summary>
+        private class DocumentPublishedReadOnlyDtoCollection : KeyedCollection<int, DocumentPublishedReadOnlyDto>
+        {
+            protected override int GetKeyForItem(DocumentPublishedReadOnlyDto item)
+            {
+                return item.NodeId;
+            }
+
+            public bool TryGetValue(int key, out DocumentPublishedReadOnlyDto val)
+            {
+                if (Dictionary == null)
+                {
+                    val = null;
+                    return false;
+                }
+                return Dictionary.TryGetValue(key, out val);
+            }
+        }
     }
 }

src/Umbraco.Core/Persistence/Repositories/ContentTypeRepository.cs

@@ -2,19 +2,13 @@
 using System.Collections.Generic;
 using System.Linq;
 using Umbraco.Core.Cache;
-using Umbraco.Core.Events;
-using Umbraco.Core.Exceptions;
 using Umbraco.Core.Logging;
 using Umbraco.Core.Models;
 using Umbraco.Core.Models.EntityBase;
 using Umbraco.Core.Models.Rdbms;
-
-using Umbraco.Core.Persistence.Factories;
 using Umbraco.Core.Persistence.Querying;
-using Umbraco.Core.Persistence.Relators;
 using Umbraco.Core.Persistence.SqlSyntax;
 using Umbraco.Core.Persistence.UnitOfWork;
-using Umbraco.Core.Services;
 
 namespace Umbraco.Core.Persistence.Repositories
 {
@@ -118,7 +112,7 @@ namespace Umbraco.Core.Persistence.Repositories
 
             if (objectTypes.Any())
             {
-                sql = sql.Where("umbracoNode.nodeObjectType IN (@objectTypes)", objectTypes);
+                sql = sql.Where("umbracoNode.nodeObjectType IN (@objectTypes)", new {objectTypes = objectTypes});
             }
 
             return Database.Fetch<string>(sql);

src/Umbraco.Core/Persistence/Repositories/EntityContainerRepository.cs

@@ -62,17 +62,27 @@ namespace Umbraco.Core.Persistence.Repositories
 
         protected override IEnumerable<EntityContainer> PerformGetAll(params int[] ids)
         {
-            //we need to batch these in groups of 2000 so we don't exceed the max 2100 limit
-            return ids.InGroupsOf(2000).SelectMany(@group =>
+            if (ids.Any())
+            {
+                //we need to batch these in groups of 2000 so we don't exceed the max 2100 limit
+                return ids.InGroupsOf(2000).SelectMany(@group =>
+                {
+                    var sql = GetBaseQuery(false)
+                        .Where("nodeObjectType=@umbracoObjectTypeId", new {umbracoObjectTypeId = NodeObjectTypeId})
+                        .Where(string.Format("{0} IN (@ids)", SqlSyntax.GetQuotedColumnName("id")), new {ids = @group});
+
+                    sql.OrderBy<NodeDto>(x => x.Level, SqlSyntax);
+
+                    return Database.Fetch<NodeDto>(sql).Select(CreateEntity);
+                });
+            }
+            else
             {
                 var sql = GetBaseQuery(false)
-                    .Where("nodeObjectType=@umbracoObjectTypeId", new { umbracoObjectTypeId = NodeObjectTypeId })
-                    .Where(string.Format("{0} IN (@ids)", SqlSyntax.GetQuotedColumnName("id")), new { ids = @group });
-
+                    .Where("nodeObjectType=@umbracoObjectTypeId", new {umbracoObjectTypeId = NodeObjectTypeId});
                 sql.OrderBy<NodeDto>(x => x.Level, SqlSyntax);
-
                 return Database.Fetch<NodeDto>(sql).Select(CreateEntity);
-            });
+            }
         }
 
         protected override IEnumerable<EntityContainer> PerformGetByQuery(IQuery<EntityContainer> query)

src/Umbraco.Core/Persistence/Repositories/EntityRepository.cs

@@ -1,18 +1,13 @@
 using System;
 using System.Collections.Generic;
-using System.Dynamic;
-using System.Globalization;
+using System.Collections.ObjectModel;
 using System.Linq;
-using System.Reflection;
-using System.Text;
 using Umbraco.Core.Models;
-using Umbraco.Core;
 using Umbraco.Core.Models.EntityBase;
 using Umbraco.Core.Models.Rdbms;
 using Umbraco.Core.Persistence.Factories;
 using Umbraco.Core.Persistence.Querying;
 using Umbraco.Core.Persistence.UnitOfWork;
-using Umbraco.Core.Strings;
 
 namespace Umbraco.Core.Persistence.Repositories
 {
@@ -68,11 +63,12 @@ namespace Umbraco.Core.Persistence.Repositories
             bool isMedia = objectTypeId == new Guid(Constants.ObjectTypes.Media);
 
             var sql = GetFullSqlForEntityType(key, isContent, isMedia, objectTypeId);
-            
+
+            var factory = new UmbracoEntityFactory();
+
             if (isMedia)
             {
-                //for now treat media differently
-                //TODO: We should really use this methodology for Content/Members too!! since it includes properties and ALL of the dynamic db fields
+                //for now treat media differently and include all property data too  
                 var entities = _work.Database.Fetch<dynamic, UmbracoPropertyDto, UmbracoEntity>(
                     new UmbracoEntityRelator().Map, sql);
 
@@ -80,14 +76,16 @@ namespace Umbraco.Core.Persistence.Repositories
             }
             else
             {
-                var nodeDto = _work.Database.FirstOrDefault<dynamic>(sql);
-                if (nodeDto == null)
-                    return null;
 
-                var factory = new UmbracoEntityFactory();
-                var entity = factory.BuildEntityFromDynamic(nodeDto);
-
-                return entity;
+                //query = read forward data reader, do not load everything into mem
+                var dtos = _work.Database.Query<dynamic>(sql);
+                var collection = new EntityDefinitionCollection();
+                foreach (var dto in dtos)
+                {
+                    collection.AddOrUpdate(new EntityDefinition(factory, dto, isContent, false));
+                }
+                var found = collection.FirstOrDefault();
+                return found != null ? found.BuildFromDynamic() : null;                
             }
             
             
@@ -112,29 +110,29 @@ namespace Umbraco.Core.Persistence.Repositories
             bool isMedia = objectTypeId == new Guid(Constants.ObjectTypes.Media);
 
             var sql = GetFullSqlForEntityType(id, isContent, isMedia, objectTypeId);
-            
+
+            var factory = new UmbracoEntityFactory();
+
             if (isMedia)
             {
-                //for now treat media differently
-                //TODO: We should really use this methodology for Content/Members too!! since it includes properties and ALL of the dynamic db fields
+                //for now treat media differently and include all property data too  
                 var entities = _work.Database.Fetch<dynamic, UmbracoPropertyDto, UmbracoEntity>(
                     new UmbracoEntityRelator().Map, sql);
 
                 return entities.FirstOrDefault();
             }
             else
-            {
-                var nodeDto = _work.Database.FirstOrDefault<dynamic>(sql);
-                if (nodeDto == null)
-                    return null;
-
-                var factory = new UmbracoEntityFactory();
-                var entity = factory.BuildEntityFromDynamic(nodeDto);
-
-                return entity;
+            {                
+                //query = read forward data reader, do not load everything into mem
+                var dtos = _work.Database.Query<dynamic>(sql);
+                var collection = new EntityDefinitionCollection();
+                foreach (var dto in dtos)
+                {
+                    collection.AddOrUpdate(new EntityDefinition(factory, dto, isContent, false));
+                }
+                var found = collection.FirstOrDefault();
+                return found != null ? found.BuildFromDynamic() : null;
             }
-
-            
         }
 
         public virtual IEnumerable<IUmbracoEntity> GetAll(Guid objectTypeId, params int[] ids)
@@ -171,22 +169,21 @@ namespace Umbraco.Core.Persistence.Repositories
 
             if (isMedia)
             {
-                //for now treat media differently
-                //TODO: We should really use this methodology for Content/Members too!! since it includes properties and ALL of the dynamic db fields
+                //for now treat media differently and include all property data too                
                 var entities = _work.Database.Fetch<dynamic, UmbracoPropertyDto, UmbracoEntity>(
                     new UmbracoEntityRelator().Map, sql);
-                foreach (var entity in entities)
-                {
-                    yield return entity;
-                }
+                return entities;
             }
             else
             {
-                var dtos = _work.Database.Fetch<dynamic>(sql);
-                foreach (var entity in dtos.Select(dto => factory.BuildEntityFromDynamic(dto)))
+                //query = read forward data reader, do not load everything into mem
+                var dtos = _work.Database.Query<dynamic>(sql);
+                var collection = new EntityDefinitionCollection();
+                foreach (var dto in dtos)
                 {
-                    yield return entity;
+                    collection.AddOrUpdate(new EntityDefinition(factory, dto, isContent, false));
                 }
+                return collection.Select(x => x.BuildFromDynamic()).ToList();                
             }
         }
 
@@ -231,8 +228,7 @@ namespace Umbraco.Core.Persistence.Repositories
                     }
                 });
 
-                //treat media differently for now 
-                //TODO: We should really use this methodology for Content/Members too!! since it includes properties and ALL of the dynamic db fields
+                //for now treat media differently and include all property data too    
                 var entities = _work.Database.Fetch<dynamic, UmbracoPropertyDto, UmbracoEntity>(
                     new UmbracoEntityRelator().Map, mediaSql);
                 return entities;
@@ -241,8 +237,15 @@ namespace Umbraco.Core.Persistence.Repositories
             {
                 //use dynamic so that we can get ALL properties from the SQL so we can chuck that data into our AdditionalData
                 var finalSql = entitySql.Append(GetGroupBy(isContent, false));
-                var dtos = _work.Database.Fetch<dynamic>(finalSql);
-                return dtos.Select(factory.BuildEntityFromDynamic).Cast<IUmbracoEntity>().ToList();
+
+                //query = read forward data reader, do not load everything into mem
+                var dtos = _work.Database.Query<dynamic>(finalSql);
+                var collection = new EntityDefinitionCollection();
+                foreach (var dto in dtos)
+                {
+                    collection.AddOrUpdate(new EntityDefinition(factory, dto, isContent, false));
+                }
+                return collection.Select(x => x.BuildFromDynamic()).ToList();
             }
         }
 
@@ -315,25 +318,31 @@ namespace Umbraco.Core.Persistence.Repositories
         protected virtual Sql GetBase(bool isContent, bool isMedia, Action<Sql> customFilter)
         {
             var columns = new List<object>
-                              {
-                                  "umbracoNode.id",
-                                  "umbracoNode.trashed",
-                                  "umbracoNode.parentID",
-                                  "umbracoNode.nodeUser",
-                                  "umbracoNode.level",
-                                  "umbracoNode.path",
-                                  "umbracoNode.sortOrder",
-                                  "umbracoNode.uniqueID",
-                                  "umbracoNode.text",
-                                  "umbracoNode.nodeObjectType",
-                                  "umbracoNode.createDate",
-                                  "COUNT(parent.parentID) as children"
-                              };
+            {
+                "umbracoNode.id",
+                "umbracoNode.trashed",
+                "umbracoNode.parentID",
+                "umbracoNode.nodeUser",
+                "umbracoNode.level",
+                "umbracoNode.path",
+                "umbracoNode.sortOrder",
+                "umbracoNode.uniqueID",
+                "umbracoNode.text",
+                "umbracoNode.nodeObjectType",
+                "umbracoNode.createDate",
+                "COUNT(parent.parentID) as children"
+            };
 
             if (isContent || isMedia)
             {
-                columns.Add("published.versionId as publishedVersion");
-                columns.Add("latest.versionId as newestVersion");
+                if (isContent)
+                {
+                    //only content has/needs this info
+                    columns.Add("published.versionId as publishedVersion");
+                    columns.Add("document.versionId as newestVersion");
+                    columns.Add("contentversion.id as versionId");
+                }
+                
                 columns.Add("contenttype.alias");
                 columns.Add("contenttype.icon");
                 columns.Add("contenttype.thumbnail");
@@ -345,17 +354,22 @@ namespace Umbraco.Core.Persistence.Repositories
             var entitySql = new Sql()
                 .Select(columns.ToArray())
                 .From("umbracoNode umbracoNode");
-                
+
             if (isContent || isMedia)
             {
-                entitySql.InnerJoin("cmsContent content").On("content.nodeId = umbracoNode.id")
-                   .LeftJoin("cmsContentType contenttype").On("contenttype.nodeId = content.contentType")
-                   .LeftJoin(
-                       "(SELECT nodeId, versionId FROM cmsDocument WHERE published = 1 GROUP BY nodeId, versionId) as published")
-                   .On("umbracoNode.id = published.nodeId")
-                   .LeftJoin(
-                       "(SELECT nodeId, versionId FROM cmsDocument WHERE newest = 1 GROUP BY nodeId, versionId) as latest")
-                   .On("umbracoNode.id = latest.nodeId");
+                entitySql.InnerJoin("cmsContent content").On("content.nodeId = umbracoNode.id");
+
+                if (isContent)
+                {
+                    //only content has/needs this info
+                    entitySql                        
+                        .InnerJoin("cmsDocument document").On("document.nodeId = umbracoNode.id")
+                        .InnerJoin("cmsContentVersion contentversion").On("contentversion.VersionId = document.versionId")
+                        .LeftJoin("(SELECT nodeId, versionId FROM cmsDocument WHERE published = 1) as published")
+                        .On("umbracoNode.id = published.nodeId");
+                }
+
+                entitySql.LeftJoin("cmsContentType contenttype").On("contenttype.nodeId = content.contentType");
             }
 
             entitySql.LeftJoin("umbracoNode parent").On("parent.parentID = umbracoNode.id");
@@ -372,22 +386,42 @@ namespace Umbraco.Core.Persistence.Repositories
         {
             var sql = baseQuery(isContent, isMedia, filter)
                 .Where("umbracoNode.nodeObjectType = @NodeObjectType", new { NodeObjectType = nodeObjectType });
+
+            if (isContent)
+            {
+                sql.Where("document.newest = 1");
+            }
+
             return sql;
         }
 
         protected virtual Sql GetBaseWhere(Func<bool, bool, Action<Sql>, Sql> baseQuery, bool isContent, bool isMedia, int id)
         {
             var sql = baseQuery(isContent, isMedia, null)
-                .Where("umbracoNode.id = @Id", new { Id = id })
-                .Append(GetGroupBy(isContent, isMedia));
+                .Where("umbracoNode.id = @Id", new { Id = id });
+
+            if (isContent)
+            {
+                sql.Where("document.newest = 1");
+            }
+
+            sql.Append(GetGroupBy(isContent, isMedia));
+
             return sql;
         }
 
         protected virtual Sql GetBaseWhere(Func<bool, bool, Action<Sql>, Sql> baseQuery, bool isContent, bool isMedia, Guid key)
         {
             var sql = baseQuery(isContent, isMedia, null)
-                .Where("umbracoNode.uniqueID = @UniqueID", new { UniqueID = key })
-                .Append(GetGroupBy(isContent, isMedia));
+                .Where("umbracoNode.uniqueID = @UniqueID", new {UniqueID = key});
+
+            if (isContent)
+            {
+                sql.Where("document.newest = 1");
+            }
+
+            sql.Append(GetGroupBy(isContent, isMedia));
+
             return sql;
         }
 
@@ -396,6 +430,12 @@ namespace Umbraco.Core.Persistence.Repositories
             var sql = baseQuery(isContent, isMedia, null)
                 .Where("umbracoNode.id = @Id AND umbracoNode.nodeObjectType = @NodeObjectType",
                        new {Id = id, NodeObjectType = nodeObjectType});
+
+            if (isContent)
+            {
+                sql.Where("document.newest = 1");
+            }
+
             return sql;
         }
 
@@ -404,36 +444,46 @@ namespace Umbraco.Core.Persistence.Repositories
             var sql = baseQuery(isContent, isMedia, null)
                 .Where("umbracoNode.uniqueID = @UniqueID AND umbracoNode.nodeObjectType = @NodeObjectType",
                        new { UniqueID = key, NodeObjectType = nodeObjectType });
+
+            if (isContent)
+            {
+                sql.Where("document.newest = 1");
+            }
+
             return sql;
         }
 
         protected virtual Sql GetGroupBy(bool isContent, bool isMedia, bool includeSort = true)
         {
             var columns = new List<object>
-                              {
-                                  "umbracoNode.id",
-                                  "umbracoNode.trashed",
-                                  "umbracoNode.parentID",
-                                  "umbracoNode.nodeUser",
-                                  "umbracoNode.level",
-                                  "umbracoNode.path",
-                                  "umbracoNode.sortOrder",
-                                  "umbracoNode.uniqueID",
-                                  "umbracoNode.text",
-                                  "umbracoNode.nodeObjectType",
-                                  "umbracoNode.createDate"
-                              };
+            {
+                "umbracoNode.id",
+                "umbracoNode.trashed",
+                "umbracoNode.parentID",
+                "umbracoNode.nodeUser",
+                "umbracoNode.level",
+                "umbracoNode.path",
+                "umbracoNode.sortOrder",
+                "umbracoNode.uniqueID",
+                "umbracoNode.text",
+                "umbracoNode.nodeObjectType",
+                "umbracoNode.createDate"
+            };
 
             if (isContent || isMedia)
             {
-                columns.Add("published.versionId");
-                columns.Add("latest.versionId");
+                if (isContent)
+                {
+                    columns.Add("published.versionId");
+                    columns.Add("document.versionId");
+                    columns.Add("contentversion.id");
+                }
                 columns.Add("contenttype.alias");
                 columns.Add("contenttype.icon");
                 columns.Add("contenttype.thumbnail");
-                columns.Add("contenttype.isContainer");
+                columns.Add("contenttype.isContainer");                
             }
-            
+
             var sql = new Sql()
                 .GroupBy(columns.ToArray());
 
@@ -444,7 +494,7 @@ namespace Umbraco.Core.Persistence.Repositories
 
             return sql;
         }
-        
+
         #endregion
 
         /// <summary>
@@ -458,33 +508,7 @@ namespace Umbraco.Core.Persistence.Repositories
             UnitOfWork.DisposeIfDisposable();
         }
 
-        #region umbracoNode POCO - Extends NodeDto
-        [TableName("umbracoNode")]
-        [PrimaryKey("id")]
-        [ExplicitColumns]
-        internal class UmbracoEntityDto : NodeDto
-        {
-            [Column("children")]
-            public int Children { get; set; }
-
-            [Column("publishedVersion")]
-            public Guid PublishedVersion { get; set; }
-
-            [Column("newestVersion")]
-            public Guid NewestVersion { get; set; }
-
-            [Column("alias")]
-            public string Alias { get; set; }
-
-            [Column("icon")]
-            public string Icon { get; set; }
-
-            [Column("thumbnail")]
-            public string Thumbnail { get; set; }
-
-            [ResultColumn]
-            public List<UmbracoPropertyDto> UmbracoPropertyDtos { get; set; }
-        }
+        #region private classes
         
         [ExplicitColumns]
         internal class UmbracoPropertyDto
@@ -568,6 +592,99 @@ namespace Umbraco.Core.Persistence.Repositories
                 return prev;
             }
         }
+
+        private class EntityDefinitionCollection : KeyedCollection<int, EntityDefinition>
+        {
+            protected override int GetKeyForItem(EntityDefinition item)
+            {
+                return item.Id;
+            }
+
+            /// <summary>
+            /// if this key already exists if it does then we need to check
+            /// if the existing item is 'older' than the new item and if that is the case we'll replace the older one
+            /// </summary>
+            /// <param name="item"></param>
+            /// <returns></returns>
+            public bool AddOrUpdate(EntityDefinition item)
+            {
+                if (Dictionary == null)
+                {
+                    base.Add(item);
+                    return true;
+                }
+
+                var key = GetKeyForItem(item);
+                EntityDefinition found;
+                if (TryGetValue(key, out found))
+                {
+                    //it already exists and it's older so we need to replace it
+                    if (item.VersionId > found.VersionId)
+                    {
+                        var currIndex = Items.IndexOf(found);
+                        if (currIndex == -1)
+                            throw new IndexOutOfRangeException("Could not find the item in the list: " + found.Id);
+
+                        //replace the current one with the newer one
+                        SetItem(currIndex, item);
+                        return true;
+                    }
+                    //could not add or update
+                    return false;
+                }
+
+                base.Add(item);
+                return true;
+            }
+
+            private bool TryGetValue(int key, out EntityDefinition val)
+            {
+                if (Dictionary == null)
+                {
+                    val = null;
+                    return false;
+                }
+                return Dictionary.TryGetValue(key, out val);
+            }
+        }
+
+        private class EntityDefinition
+        {
+            private readonly UmbracoEntityFactory _factory;
+            private readonly dynamic _entity;
+            private readonly bool _isContent;
+            private readonly bool _isMedia;
+
+            public EntityDefinition(UmbracoEntityFactory factory, dynamic entity, bool isContent, bool isMedia)
+            {
+                _factory = factory;
+                _entity = entity;
+                _isContent = isContent;
+                _isMedia = isMedia;
+            }
+
+            public IUmbracoEntity BuildFromDynamic()
+            {
+                return _factory.BuildEntityFromDynamic(_entity);
+            }
+
+            public int Id
+            {
+                get { return _entity.id; }
+            }
+
+            public int VersionId
+            {
+                get
+                {
+                    if (_isContent || _isMedia)
+                    {
+                        return _entity.versionId;
+                    }
+                    return _entity.id;
+                }
+            }
+        }
         #endregion
     }
 }

src/Umbraco.Core/Persistence/Repositories/Interfaces/IContentRepository.cs

@@ -96,5 +96,6 @@ namespace Umbraco.Core.Persistence.Repositories
         /// <returns>An Enumerable list of <see cref="IContent"/> objects</returns>
         IEnumerable<IContent> GetPagedResultsByQuery(IQuery<IContent> query, long pageIndex, int pageSize, out long totalRecords,
             string orderBy, Direction orderDirection, bool orderBySystemField, IQuery<IContent> filter = null);
+        
     }
 }

src/Umbraco.Core/Persistence/Repositories/Interfaces/IMediaRepository.cs

@@ -38,15 +38,6 @@ namespace Umbraco.Core.Persistence.Repositories
         /// <returns>An Enumerable list of <see cref="IMedia"/> objects</returns>
         IEnumerable<IMedia> GetPagedResultsByQuery(IQuery<IMedia> query, long pageIndex, int pageSize, out long totalRecords,
             string orderBy, Direction orderDirection, bool orderBySystemField, string filter = "");
-
-        /// <summary>
-        /// Gets paged media descendants as XML by path
-        /// </summary>
-        /// <param name="path">Path starts with</param>
-        /// <param name="pageIndex">Page number</param>
-        /// <param name="pageSize">Page size</param>
-        /// <param name="totalRecords">Total records the query would return without paging</param>
-        /// <returns>A paged enumerable of XML entries of media items</returns>
-        IEnumerable<XElement> GetPagedXmlEntriesByPath(string path, long pageIndex, int pageSize, out long totalRecords);
+        
     }
 }

src/Umbraco.Core/Persistence/Repositories/Interfaces/IMemberRepository.cs

@@ -73,6 +73,6 @@ namespace Umbraco.Core.Persistence.Repositories
         /// <param name="content"></param>
         /// <param name="xml"></param>
         void AddOrUpdatePreviewXml(IMember content, Func<IMember, XElement> xml);
-
+        
     }
 }

src/Umbraco.Core/Persistence/Repositories/Interfaces/IRepositoryVersionable.cs

@@ -20,7 +20,7 @@ namespace Umbraco.Core.Persistence.Repositories
         /// <param name="serializer">The serializer to convert TEntity to Xml</param>
         /// <param name="groupSize">Structures will be rebuilt in chunks of this size</param>
         /// <param name="contentTypeIds"></param>
-        void RebuildXmlStructures(Func<TEntity, XElement> serializer, int groupSize = 5000, IEnumerable<int> contentTypeIds = null);
+        void RebuildXmlStructures(Func<TEntity, XElement> serializer, int groupSize = 200, IEnumerable<int> contentTypeIds = null);
 
         /// <summary>
         /// Get the total count of entities
@@ -67,5 +67,16 @@ namespace Umbraco.Core.Persistence.Repositories
         /// <param name="id">Id of the <see cref="TEntity"/> object to delete versions from</param>
         /// <param name="versionDate">Latest version date</param>
         void DeleteVersions(int id, DateTime versionDate);
+
+        /// <summary>
+        /// Gets paged content descendants as XML by path
+        /// </summary>
+        /// <param name="path">Path starts with</param>
+        /// <param name="pageIndex">Page number</param>
+        /// <param name="pageSize">Page size</param>
+        /// <param name="orderBy"></param>
+        /// <param name="totalRecords">Total records the query would return without paging</param>
+        /// <returns>A paged enumerable of XML entries of content items</returns>
+        IEnumerable<XElement> GetPagedXmlEntriesByPath(string path, long pageIndex, int pageSize, string[] orderBy, out long totalRecords);
     }
 }

src/Umbraco.Core/Persistence/Repositories/MediaRepository.cs

@@ -55,7 +55,7 @@ namespace Umbraco.Core.Persistence.Repositories
             if (dto == null)
                 return null;
 
-            var content = CreateMediaFromDto(dto, dto.VersionId, sql);
+            var content = CreateMediaFromDto(dto, sql);
 
             return content;
         }
@@ -68,7 +68,7 @@ namespace Umbraco.Core.Persistence.Repositories
                 sql.Where("umbracoNode.id in (@ids)", new { ids = ids });
             }
 
-            return ProcessQuery(sql);
+            return ProcessQuery(sql, new PagingSqlQuery(sql));
         }
 
         protected override IEnumerable<IMedia> PerformGetByQuery(IQuery<IMedia> query)
@@ -76,26 +76,34 @@ namespace Umbraco.Core.Persistence.Repositories
             var sqlClause = GetBaseQuery(false);
             var translator = new SqlTranslator<IMedia>(sqlClause, query);
             var sql = translator.Translate()
-                                .OrderBy<NodeDto>(x => x.SortOrder);
+                                .OrderBy<NodeDto>(x => x.SortOrder, SqlSyntax);
 
-            return ProcessQuery(sql);
+            return ProcessQuery(sql, new PagingSqlQuery(sql));
         }
 
         #endregion
 
         #region Overrides of PetaPocoRepositoryBase<int,IMedia>
+        
+        protected override Sql GetBaseQuery(BaseQueryType queryType)
+        {
+            var sql = new Sql();
+            sql.Select(queryType == BaseQueryType.Count ? "COUNT(*)" : (queryType == BaseQueryType.Ids ? "cmsContentVersion.contentId" : "*"))
+                .From<ContentVersionDto>(SqlSyntax)
+                .InnerJoin<ContentDto>(SqlSyntax)
+                .On<ContentVersionDto, ContentDto>(SqlSyntax, left => left.NodeId, right => right.NodeId)
+                .InnerJoin<NodeDto>(SqlSyntax)
+                .On<ContentDto, NodeDto>(SqlSyntax, left => left.NodeId, right => right.NodeId, SqlSyntax)
+                //TODO: IF we want to enable querying on content type information this will need to be joined
+                //.InnerJoin<ContentTypeDto>(SqlSyntax)
+                //.On<ContentDto, ContentTypeDto>(SqlSyntax, left => left.ContentTypeId, right => right.NodeId, SqlSyntax);
+                .Where<NodeDto>(x => x.NodeObjectType == NodeObjectTypeId, SqlSyntax);
+            return sql;
+        }
 
         protected override Sql GetBaseQuery(bool isCount)
         {
-            var sql = new Sql();
-            sql.Select(isCount ? "COUNT(*)" : "*")
-                .From<ContentVersionDto>()
-                .InnerJoin<ContentDto>()
-                .On<ContentVersionDto, ContentDto>(left => left.NodeId, right => right.NodeId)
-                .InnerJoin<NodeDto>()
-                .On<ContentDto, NodeDto>(left => left.NodeId, right => right.NodeId)
-                .Where<NodeDto>(x => x.NodeObjectType == NodeObjectTypeId);
-            return sql;
+            return GetBaseQuery(isCount ? BaseQueryType.Count : BaseQueryType.FullSingle);
         }
 
         protected override string GetBaseWhereClause()
@@ -138,93 +146,106 @@ namespace Umbraco.Core.Persistence.Repositories
             var sql = GetBaseQuery(false)
                 .Where(GetBaseWhereClause(), new { Id = id })
                 .OrderByDescending<ContentVersionDto>(x => x.VersionDate, SqlSyntax);
-            return ProcessQuery(sql, true);
+            return ProcessQuery(sql, new PagingSqlQuery(sql), true);
         }
 
-        private IEnumerable<IMedia> ProcessQuery(Sql sql, bool withCache = false)
+        /// <summary>
+        /// This is the underlying method that processes most queries for this repository
+        /// </summary>
+        /// <param name="sqlFull">
+        /// The full SQL to select all media data 
+        /// </param>
+        /// <param name="pagingSqlQuery">
+        /// The Id SQL to just return all media ids - used to process the properties for the media item
+        /// </param>
+        /// <param name="withCache"></param>
+        /// <returns></returns>
+        private IEnumerable<IMedia> ProcessQuery(Sql sqlFull, PagingSqlQuery pagingSqlQuery, bool withCache = false)
         {
             // fetch returns a list so it's ok to iterate it in this method
-            var dtos = Database.Fetch<ContentVersionDto, ContentDto, NodeDto>(sql);
-            var content = new IMedia[dtos.Count];
-            var defs = new List<DocumentDefinition>();
+            var dtos = Database.Fetch<ContentVersionDto, ContentDto, NodeDto>(sqlFull);
+            
+            //This is a tuple list identifying if the content item came from the cache or not
+            var content = new List<Tuple<IMedia, bool>>();
+            var defs = new DocumentDefinitionCollection();
 
-            for (var i = 0; i < dtos.Count; i++)
+            //track the looked up content types, even though the content types are cached
+            // they still need to be deep cloned out of the cache and we don't want to add
+            // the overhead of deep cloning them on every item in this loop
+            var contentTypes = new Dictionary<int, IMediaType>();
+
+            foreach (var dto in dtos)
             {
-                var dto = dtos[i];
-
                 // if the cache contains the item, use it
                 if (withCache)
                 {
                     var cached = RuntimeCache.GetCacheItem<IMedia>(GetCacheIdKey<IMedia>(dto.NodeId));
-                    if (cached != null)
+                    //only use this cached version if the dto returned is the same version - this is just a safety check, media doesn't 
+                    //store different versions, but just in case someone corrupts some data we'll double check to be sure.
+                    if (cached != null && cached.Version == dto.VersionId)
                     {
-                        content[i] = cached;
+                        content.Add(new Tuple<IMedia, bool>(cached, true));
                         continue;
                     }
                 }
 
                 // else, need to fetch from the database
                 // content type repository is full-cache so OK to get each one independently
-                var contentType = _mediaTypeRepository.Get(dto.ContentDto.ContentTypeId);
-                var factory = new MediaFactory(contentType, NodeObjectTypeId, dto.NodeId);
-                content[i] = factory.BuildEntity(dto);
 
-                // need properties
-                defs.Add(new DocumentDefinition(
-                    dto.NodeId,
-                    dto.VersionId,
-                    dto.VersionDate,
-                    dto.ContentDto.NodeDto.CreateDate,
-                    contentType
-                ));
+                IMediaType contentType;
+                if (contentTypes.ContainsKey(dto.ContentDto.ContentTypeId))
+                {
+                    contentType = contentTypes[dto.ContentDto.ContentTypeId];
+                }
+                else
+                {
+                    contentType = _mediaTypeRepository.Get(dto.ContentDto.ContentTypeId);
+                    contentTypes[dto.ContentDto.ContentTypeId] = contentType;
+                }
+
+                // track the definition and if it's successfully added or updated then processed
+                if (defs.AddOrUpdate(new DocumentDefinition(dto, contentType)))
+                {
+                    content.Add(new Tuple<IMedia, bool>(MediaFactory.BuildEntity(dto, contentType), false));
+                }
             }
 
             // load all properties for all documents from database in 1 query
-            var propertyData = GetPropertyCollection(sql, defs);
+            var propertyData = GetPropertyCollection(pagingSqlQuery, defs);
 
-            // assign
-            var dtoIndex = 0;
-            foreach (var def in defs)
+            // assign property data
+            foreach (var contentItem in content)
             {
-                // move to corresponding item (which has to exist)
-                while (dtos[dtoIndex].NodeId != def.Id) dtoIndex++;
+                var cc = contentItem.Item1;
+                var fromCache = contentItem.Item2;
 
-                // complete the item
-                var cc = content[dtoIndex];
-                cc.Properties = propertyData[cc.Id];
+                //if this has come from cache, we do not need to build up it's structure
+                if (fromCache) continue;
+
+                cc.Properties = propertyData[cc.Version];
 
                 //on initial construction we don't want to have dirty properties tracked
                 // http://issues.umbraco.org/issue/U4-1946
-                ((Entity) cc).ResetDirtyProperties(false);
+                cc.ResetDirtyProperties(false);
             }
 
-            return content;
+            return content.Select(x => x.Item1).ToArray();
         }
 
         public override IMedia GetByVersion(Guid versionId)
         {
             var sql = GetBaseQuery(false);
             sql.Where("cmsContentVersion.VersionId = @VersionId", new { VersionId = versionId });
-            sql.OrderByDescending<ContentVersionDto>(x => x.VersionDate);
+            sql.OrderByDescending<ContentVersionDto>(x => x.VersionDate, SqlSyntax);
 
             var dto = Database.Fetch<ContentVersionDto, ContentDto, NodeDto>(sql).FirstOrDefault();
 
             if (dto == null)
                 return null;
 
-            var mediaType = _mediaTypeRepository.Get(dto.ContentDto.ContentTypeId);
+            var content = CreateMediaFromDto(dto, sql);
 
-            var factory = new MediaFactory(mediaType, NodeObjectTypeId, dto.NodeId);
-            var media = factory.BuildEntity(dto);
-
-            var properties = GetPropertyCollection(sql, new[] { new DocumentDefinition(dto.NodeId, dto.VersionId, media.UpdateDate, media.CreateDate, mediaType) });
-
-            media.Properties = properties[dto.NodeId];
-
-            //on initial construction we don't want to have dirty properties tracked
-            // http://issues.umbraco.org/issue/U4-1946
-            ((Entity)media).ResetDirtyProperties(false);
-            return media;
+            return content;
         }
 
         public void RebuildXmlStructures(Func<IMedia, XElement> serializer, int groupSize = 200, IEnumerable<int> contentTypeIds = null)
@@ -242,12 +263,15 @@ namespace Umbraco.Core.Persistence.Repositories
                 // get the next group of nodes
                 var query = GetBaseQuery(false);
                 if (contentTypeIdsA.Length > 0)
-                    query = query
-                        .WhereIn<ContentDto>(x => x.ContentTypeId, contentTypeIdsA, SqlSyntax);
+                {
+                    query = query.WhereIn<ContentDto>(x => x.ContentTypeId, contentTypeIdsA, SqlSyntax);
+                }
                 query = query
-                    .Where<NodeDto>(x => x.NodeId > baseId)
+                    .Where<NodeDto>(x => x.NodeId > baseId, SqlSyntax)
+                    .Where<NodeDto>(x => x.Trashed == false, SqlSyntax)
                     .OrderBy<NodeDto>(x => x.NodeId, SqlSyntax);
-                var xmlItems = ProcessQuery(SqlSyntax.SelectTop(query, groupSize))
+                var sql = SqlSyntax.SelectTop(query, groupSize);
+                var xmlItems = ProcessQuery(sql, new PagingSqlQuery(sql))
                     .Select(x => new ContentXmlDto { NodeId = x.Id, Xml = serializer(x).ToString() })
                     .ToList();
 
@@ -268,7 +292,38 @@ namespace Umbraco.Core.Persistence.Repositories
                         Logger.Error<MediaRepository>("Could not rebuild XML for nodeId=" + xmlItem.NodeId, e);
                     }
                 }
-                baseId = xmlItems.Last().NodeId;
+                baseId = xmlItems[xmlItems.Count - 1].NodeId;
+            }
+
+            //now delete the items that shouldn't be there
+            var allMediaIds = Database.Fetch<int>(GetBaseQuery(BaseQueryType.Ids).Where<NodeDto>(x => x.Trashed == false, SqlSyntax));
+            var mediaObjectType = Guid.Parse(Constants.ObjectTypes.Media);
+            var xmlIdsQuery = new Sql()
+                .Select("DISTINCT cmsContentXml.nodeId")
+                .From<ContentXmlDto>(SqlSyntax)
+                .InnerJoin<NodeDto>(SqlSyntax)
+                .On<ContentXmlDto, NodeDto>(SqlSyntax, left => left.NodeId, right => right.NodeId);
+                
+            if (contentTypeIdsA.Length > 0)
+            {
+                xmlIdsQuery.InnerJoin<ContentDto>(SqlSyntax)
+                    .On<ContentDto, NodeDto>(SqlSyntax, left => left.NodeId, right => right.NodeId)
+                    .InnerJoin<ContentTypeDto>(SqlSyntax)
+                    .On<ContentTypeDto, ContentDto>(SqlSyntax, left => left.NodeId, right => right.ContentTypeId)
+                    .WhereIn<ContentDto>(x => x.ContentTypeId, contentTypeIdsA, SqlSyntax);
+            }
+
+            xmlIdsQuery.Where<NodeDto>(dto => dto.NodeObjectType == mediaObjectType, SqlSyntax);
+            
+            var allXmlIds = Database.Fetch<int>(xmlIdsQuery);
+
+            var toRemove = allXmlIds.Except(allMediaIds).ToArray();
+            if (toRemove.Length > 0)
+            {
+                foreach (var idGroup in toRemove.InGroupsOf(2000))
+                {
+                    Database.Execute("DELETE FROM cmsContentXml WHERE nodeId IN (@ids)", new { ids = idGroup });
+                }
             }
         }
 
@@ -324,6 +379,7 @@ namespace Umbraco.Core.Persistence.Repositories
 
             //Update with new correct path
             nodeDto.Path = string.Concat(parent.Path, ",", nodeDto.NodeId);
+            nodeDto.ValidatePathWithException();
             Database.Update(nodeDto);
 
             //Update entity with correct values
@@ -397,6 +453,7 @@ namespace Umbraco.Core.Persistence.Repositories
 
             //Updates the (base) node data - umbracoNode
             var nodeDto = dto.ContentDto.NodeDto;
+            nodeDto.ValidatePathWithException();
             var o = Database.Update(nodeDto);
 
             //Only update this DTO if the contentType has actually changed
@@ -493,56 +550,30 @@ namespace Umbraco.Core.Persistence.Repositories
                 filterCallback = () => new Tuple<string, object[]>(sbWhere.ToString().Trim(), args.ToArray());
             }
 
-            return GetPagedResultsByQuery<ContentVersionDto, Models.Media>(query, pageIndex, pageSize, out totalRecords,
+            return GetPagedResultsByQuery<ContentVersionDto>(query, pageIndex, pageSize, out totalRecords,
                 new Tuple<string, string>("cmsContentVersion", "contentId"),
-                sql => ProcessQuery(sql), orderBy, orderDirection, orderBySystemField,
+                (sqlFull, pagingSqlQuery) => ProcessQuery(sqlFull, pagingSqlQuery), orderBy, orderDirection, orderBySystemField,
                 filterCallback);
 
         }
 
-        /// <summary>
-        /// Gets paged media descendants as XML by path
-        /// </summary>
-        /// <param name="path">Path starts with</param>
-        /// <param name="pageIndex">Page number</param>
-        /// <param name="pageSize">Page size</param>
-        /// <param name="totalRecords">Total records the query would return without paging</param>
-        /// <returns>A paged enumerable of XML entries of media items</returns>
-        public IEnumerable<XElement> GetPagedXmlEntriesByPath(string path, long pageIndex, int pageSize, out long totalRecords)
-        {
-            Sql query;
-            if (path == "-1")
-            {
-                query = new Sql().Select("nodeId, xml").From("cmsContentXml").Where("nodeId IN (SELECT id FROM umbracoNode WHERE nodeObjectType = @0)", Guid.Parse(Constants.ObjectTypes.Media)).OrderBy("nodeId");
-            }
-            else
-            {
-                query = new Sql().Select("nodeId, xml").From("cmsContentXml").Where("nodeId IN (SELECT id FROM umbracoNode WHERE path LIKE @0)", path.EnsureEndsWith(",%")).OrderBy("nodeId");
-            }
-            var pagedResult = Database.Page<ContentXmlDto>(pageIndex+1, pageSize, query);
-            totalRecords = pagedResult.TotalItems;
-            return pagedResult.Items.Select(dto => XElement.Parse(dto.Xml));
-        }
-
         /// <summary>
         /// Private method to create a media object from a ContentDto
         /// </summary>
-        /// <param name="d"></param>
-        /// <param name="versionId"></param>
+        /// <param name="dto"></param>
         /// <param name="docSql"></param>
         /// <returns></returns>
-        private IMedia CreateMediaFromDto(ContentVersionDto dto, Guid versionId, Sql docSql)
+        private IMedia CreateMediaFromDto(ContentVersionDto dto, Sql docSql)
         {
             var contentType = _mediaTypeRepository.Get(dto.ContentDto.ContentTypeId);
+            
+            var media = MediaFactory.BuildEntity(dto, contentType);
 
-            var factory = new MediaFactory(contentType, NodeObjectTypeId, dto.NodeId);
-            var media = factory.BuildEntity(dto);
+            var docDef = new DocumentDefinition(dto, contentType);
 
-            var docDef = new DocumentDefinition(dto.NodeId, versionId, media.UpdateDate, media.CreateDate, contentType);
+            var properties = GetPropertyCollection(new PagingSqlQuery(docSql), new[] { docDef });
 
-            var properties = GetPropertyCollection(docSql, new[] { docDef });
-
-            media.Properties = properties[dto.NodeId];
+            media.Properties = properties[dto.VersionId];
 
             //on initial construction we don't want to have dirty properties tracked
             // http://issues.umbraco.org/issue/U4-1946

src/Umbraco.Core/Persistence/Repositories/MemberRepository.cs

@@ -54,7 +54,7 @@ namespace Umbraco.Core.Persistence.Repositories
             if (dto == null)
                 return null;
 
-            var content = CreateMemberFromDto(dto, dto.ContentVersionDto.VersionId, sql);
+            var content = CreateMemberFromDto(dto, sql);
 
             return content;
 
@@ -68,7 +68,7 @@ namespace Umbraco.Core.Persistence.Repositories
                 sql.Where("umbracoNode.id in (@ids)", new { ids = ids });
             }
 
-            return ProcessQuery(sql);
+            return ProcessQuery(sql, new PagingSqlQuery(sql));
 
         }
 
@@ -90,7 +90,7 @@ namespace Umbraco.Core.Persistence.Repositories
                 baseQuery.Append(new Sql("WHERE umbracoNode.id IN (" + sql.SQL + ")", sql.Arguments))
                     .OrderBy<NodeDto>(x => x.SortOrder);
 
-                return ProcessQuery(baseQuery);
+                return ProcessQuery(baseQuery, new PagingSqlQuery(baseQuery));
             }
             else
             {
@@ -98,7 +98,7 @@ namespace Umbraco.Core.Persistence.Repositories
                 var sql = translator.Translate()
                     .OrderBy<NodeDto>(x => x.SortOrder);
 
-                return ProcessQuery(sql);
+                return ProcessQuery(sql, new PagingSqlQuery(sql));
             }
 
         }
@@ -107,24 +107,29 @@ namespace Umbraco.Core.Persistence.Repositories
 
         #region Overrides of PetaPocoRepositoryBase<int,IMembershipUser>
 
-        protected override Sql GetBaseQuery(bool isCount)
+        protected override Sql GetBaseQuery(BaseQueryType queryType)
         {
             var sql = new Sql();
-            sql.Select(isCount ? "COUNT(*)" : "*")
-                .From<MemberDto>()
-                .InnerJoin<ContentVersionDto>()
-                .On<ContentVersionDto, MemberDto>(left => left.NodeId, right => right.NodeId)
-                .InnerJoin<ContentDto>()
-                .On<ContentVersionDto, ContentDto>(left => left.NodeId, right => right.NodeId)
+            sql.Select(queryType == BaseQueryType.Count ? "COUNT(*)" : (queryType == BaseQueryType.Ids ? "cmsMember.nodeId" : "*"))
+                .From<MemberDto>(SqlSyntax)
+                .InnerJoin<ContentVersionDto>(SqlSyntax)
+                .On<ContentVersionDto, MemberDto>(SqlSyntax, left => left.NodeId, right => right.NodeId)
+                .InnerJoin<ContentDto>(SqlSyntax)
+                .On<ContentVersionDto, ContentDto>(SqlSyntax, left => left.NodeId, right => right.NodeId)
                 //We're joining the type so we can do a query against the member type - not sure if this adds much overhead or not?
                 // the execution plan says it doesn't so we'll go with that and in that case, it might be worth joining the content
                 // types by default on the document and media repo's so we can query by content type there too.
-                .InnerJoin<ContentTypeDto>().On<ContentTypeDto, ContentDto>(left => left.NodeId, right => right.ContentTypeId)
-                .InnerJoin<NodeDto>()
-                .On<ContentDto, NodeDto>(left => left.NodeId, right => right.NodeId)
-                .Where<NodeDto>(x => x.NodeObjectType == NodeObjectTypeId);
+                .InnerJoin<ContentTypeDto>(SqlSyntax)
+                .On<ContentTypeDto, ContentDto>(SqlSyntax, left => left.NodeId, right => right.ContentTypeId)
+                .InnerJoin<NodeDto>(SqlSyntax)
+                .On<ContentDto, NodeDto>(SqlSyntax, left => left.NodeId, right => right.NodeId)
+                .Where<NodeDto>(x => x.NodeObjectType == NodeObjectTypeId, SqlSyntax);
             return sql;
+        }
 
+        protected override Sql GetBaseQuery(bool isCount)
+        {
+            return GetBaseQuery(isCount ? BaseQueryType.Count : BaseQueryType.FullSingle);
         }
 
         protected override string GetBaseWhereClause()
@@ -380,8 +385,8 @@ namespace Umbraco.Core.Persistence.Repositories
             var sql = GetBaseQuery(false)
                 .Where(GetBaseWhereClause(), new { Id = id })
                 .OrderByDescending<ContentVersionDto>(x => x.VersionDate, SqlSyntax);
-            return ProcessQuery(sql, true);
-        }
+            return ProcessQuery(sql, new PagingSqlQuery(sql), true);
+        }        
 
         public void RebuildXmlStructures(Func<IMember, XElement> serializer, int groupSize = 200, IEnumerable<int> contentTypeIds = null)
         {
@@ -403,7 +408,8 @@ namespace Umbraco.Core.Persistence.Repositories
                 query = query
                     .Where<NodeDto>(x => x.NodeId > baseId)
                     .OrderBy<NodeDto>(x => x.NodeId, SqlSyntax);
-                var xmlItems = ProcessQuery(SqlSyntax.SelectTop(query, groupSize))
+                var sql = SqlSyntax.SelectTop(query, groupSize);
+                var xmlItems = ProcessQuery(sql, new PagingSqlQuery(sql))
                     .Select(x => new ContentXmlDto { NodeId = x.Id, Xml = serializer(x).ToString() })
                     .ToList();
 
@@ -442,16 +448,16 @@ namespace Umbraco.Core.Persistence.Repositories
             var memberType = _memberTypeRepository.Get(dto.ContentVersionDto.ContentDto.ContentTypeId);
 
             var factory = new MemberFactory(memberType, NodeObjectTypeId, dto.NodeId);
-            var media = factory.BuildEntity(dto);
+            var member = factory.BuildEntity(dto);
 
-            var properties = GetPropertyCollection(sql, new[] { new DocumentDefinition(dto.NodeId, dto.ContentVersionDto.VersionId, media.UpdateDate, media.CreateDate, memberType) });
+            var properties = GetPropertyCollection(new PagingSqlQuery(sql), new[] { new DocumentDefinition(dto.ContentVersionDto, memberType) });
 
-            media.Properties = properties[dto.NodeId];
+            member.Properties = properties[dto.ContentVersionDto.VersionId];
 
             //on initial construction we don't want to have dirty properties tracked
             // http://issues.umbraco.org/issue/U4-1946
-            ((Entity)media).ResetDirtyProperties(false);
-            return media;
+            ((Entity)member).ResetDirtyProperties(false);
+            return member;
 
         }
 
@@ -535,7 +541,7 @@ namespace Umbraco.Core.Persistence.Repositories
                 .OrderByDescending<ContentVersionDto>(x => x.VersionDate)
                 .OrderBy<NodeDto>(x => x.SortOrder);
 
-            return ProcessQuery(sql);
+            return ProcessQuery(sql, new PagingSqlQuery(sql));
 
         }
 
@@ -617,9 +623,9 @@ namespace Umbraco.Core.Persistence.Repositories
                 filterCallback = () => new Tuple<string, object[]>(sbWhere.ToString().Trim(), args.ToArray());
             }
 
-            return GetPagedResultsByQuery<MemberDto, Member>(query, pageIndex, pageSize, out totalRecords,
+            return GetPagedResultsByQuery<MemberDto>(query, pageIndex, pageSize, out totalRecords,
                 new Tuple<string, string>("cmsMember", "nodeId"),
-                sql => ProcessQuery(sql), orderBy, orderDirection, orderBySystemField,
+                (sqlFull, sqlIds) => ProcessQuery(sqlFull, sqlIds), orderBy, orderDirection, orderBySystemField,
                 filterCallback);
         }
 
@@ -659,25 +665,37 @@ namespace Umbraco.Core.Persistence.Repositories
             return base.GetEntityPropertyNameForOrderBy(orderBy);
         }
 
-        private IEnumerable<IMember> ProcessQuery(Sql sql, bool withCache = false)
+        /// <summary>
+        /// This is the underlying method that processes most queries for this repository
+        /// </summary>
+        /// <param name="sqlFull">
+        /// The full SQL to select all member data 
+        /// </param>
+        /// <param name="pagingSqlQuery">
+        /// The Id SQL to just return all member ids - used to process the properties for the member item
+        /// </param>
+        /// <param name="withCache"></param>
+        /// <returns></returns>
+        private IEnumerable<IMember> ProcessQuery(Sql sqlFull, PagingSqlQuery pagingSqlQuery, bool withCache = false)
         {
             // fetch returns a list so it's ok to iterate it in this method
-            var dtos = Database.Fetch<MemberDto, ContentVersionDto, ContentDto, NodeDto>(sql);
+            var dtos = Database.Fetch<MemberDto, ContentVersionDto, ContentDto, NodeDto>(sqlFull);
 
-            var content = new IMember[dtos.Count];
-            var defs = new List<DocumentDefinition>();
+            //This is a tuple list identifying if the content item came from the cache or not
+            var content = new List<Tuple<IMember, bool>>();
+            var defs = new DocumentDefinitionCollection();
 
-            for (var i = 0; i < dtos.Count; i++)
+            foreach (var dto in dtos)
             {
-                var dto = dtos[i];
-
                 // if the cache contains the item, use it
                 if (withCache)
                 {
                     var cached = RuntimeCache.GetCacheItem<IMember>(GetCacheIdKey<IMember>(dto.NodeId));
-                    if (cached != null)
+                    //only use this cached version if the dto returned is the same version - this is just a safety check, members dont 
+                    //store different versions, but just in case someone corrupts some data we'll double check to be sure.
+                    if (cached != null && cached.Version == dto.ContentVersionDto.VersionId)
                     {
-                        content[i] = cached;
+                        content.Add(new Tuple<IMember, bool>(cached, true));
                         continue;
                     }
                 }
@@ -685,60 +703,54 @@ namespace Umbraco.Core.Persistence.Repositories
                 // else, need to fetch from the database
                 // content type repository is full-cache so OK to get each one independently
                 var contentType = _memberTypeRepository.Get(dto.ContentVersionDto.ContentDto.ContentTypeId);
-                var factory = new MemberFactory(contentType, NodeObjectTypeId, dto.NodeId);
-                content[i] = factory.BuildEntity(dto);
 
                 // need properties
-                defs.Add(new DocumentDefinition(
-                    dto.NodeId,
-                    dto.ContentVersionDto.VersionId,
-                    dto.ContentVersionDto.VersionDate,
-                    dto.ContentVersionDto.ContentDto.NodeDto.CreateDate,
-                    contentType
-                ));
+                if (defs.AddOrUpdate(new DocumentDefinition(dto.ContentVersionDto, contentType)))
+                {
+                    content.Add(new Tuple<IMember, bool>(MemberFactory.BuildEntity(dto, contentType), false));
+                }
             }
 
             // load all properties for all documents from database in 1 query
-            var propertyData = GetPropertyCollection(sql, defs);
+            var propertyData = GetPropertyCollection(pagingSqlQuery, defs);
 
-            // assign
-            var dtoIndex = 0;
-            foreach (var def in defs)
+            // assign property data
+            foreach (var contentItem in content)
             {
-                // move to corresponding item (which has to exist)
-                while (dtos[dtoIndex].NodeId != def.Id) dtoIndex++;
+                var cc = contentItem.Item1;
+                var fromCache = contentItem.Item2;
 
-                // complete the item
-                var cc = content[dtoIndex];
-                cc.Properties = propertyData[cc.Id];
+                //if this has come from cache, we do not need to build up it's structure
+                if (fromCache) continue;
+
+                cc.Properties = propertyData[cc.Version];
 
                 //on initial construction we don't want to have dirty properties tracked
                 // http://issues.umbraco.org/issue/U4-1946
-                ((Entity)cc).ResetDirtyProperties(false);
+                cc.ResetDirtyProperties(false);
             }
 
-            return content;
+            return content.Select(x => x.Item1).ToArray();
         }
 
         /// <summary>
         /// Private method to create a member object from a MemberDto
         /// </summary>
         /// <param name="dto"></param>
-        /// <param name="versionId"></param>
         /// <param name="docSql"></param>
         /// <returns></returns>
-        private IMember CreateMemberFromDto(MemberDto dto, Guid versionId, Sql docSql)
+        private IMember CreateMemberFromDto(MemberDto dto, Sql docSql)
         {
             var memberType = _memberTypeRepository.Get(dto.ContentVersionDto.ContentDto.ContentTypeId);
 
             var factory = new MemberFactory(memberType, NodeObjectTypeId, dto.ContentVersionDto.NodeId);
             var member = factory.BuildEntity(dto);
 
-            var docDef = new DocumentDefinition(dto.ContentVersionDto.NodeId, versionId, member.UpdateDate, member.CreateDate, memberType);
+            var docDef = new DocumentDefinition(dto.ContentVersionDto, memberType);
 
             var properties = GetPropertyCollection(docSql, new[] { docDef });
 
-            member.Properties = properties[dto.ContentVersionDto.NodeId];
+            member.Properties = properties[dto.ContentVersionDto.VersionId];
 
             //on initial construction we don't want to have dirty properties tracked
             // http://issues.umbraco.org/issue/U4-1946

src/Umbraco.Core/Persistence/Repositories/PublicAccessRepository.cs

@@ -44,10 +44,9 @@ namespace Umbraco.Core.Persistence.Repositories
             {
                 sql.Where("umbracoAccess.id IN (@ids)", new { ids = ids });
             }
-
-            sql.OrderBy<AccessDto>(x => x.NodeId, SqlSyntax);
-
+            
             var factory = new PublicAccessEntryFactory();
+            //MUST be ordered by this GUID ID for the AccessRulesRelator to work
             var dtos = Database.Fetch<AccessDto, AccessRuleDto, AccessDto>(new AccessRulesRelator().Map, sql);
             return dtos.Select(factory.BuildEntity);
         }
@@ -59,6 +58,7 @@ namespace Umbraco.Core.Persistence.Repositories
             var sql = translator.Translate();
 
             var factory = new PublicAccessEntryFactory();
+            //MUST be ordered by this GUID ID for the AccessRulesRelator to work
             var dtos = Database.Fetch<AccessDto, AccessRuleDto, AccessDto>(new AccessRulesRelator().Map, sql);
             return dtos.Select(factory.BuildEntity);
         }
@@ -69,7 +69,9 @@ namespace Umbraco.Core.Persistence.Repositories
             sql.Select("*")
                 .From<AccessDto>(SqlSyntax)
                 .LeftJoin<AccessRuleDto>(SqlSyntax)
-                .On<AccessDto, AccessRuleDto>(SqlSyntax, left => left.Id, right => right.AccessId);
+                .On<AccessDto, AccessRuleDto>(SqlSyntax, left => left.Id, right => right.AccessId)
+                //MUST be ordered by this GUID ID for the AccessRulesRelator to work
+                .OrderBy<AccessDto>(dto => dto.Id, SqlSyntax);
 
             return sql;
         }
@@ -110,6 +112,11 @@ namespace Umbraco.Core.Persistence.Repositories
             {
                 rule.AccessId = entity.Key;
                 Database.Insert(rule);
+                //update the id so HasEntity is correct
+                var entityRule = entity.Rules.First(x => x.Key == rule.Id);
+                entityRule.Id = entityRule.Key.GetHashCode();
+                //double make sure that this is set since it is possible to add rules via ctor without AddRule
+                entityRule.AccessEntryId = entity.Key;
             }
 
             entity.ResetDirtyProperties();
@@ -130,7 +137,7 @@ namespace Umbraco.Core.Persistence.Repositories
             {
                 if (rule.HasIdentity)
                 {
-                    var count = Database.Update(dto.Rules.Single(x => x.Id == rule.Key));
+                    var count = Database.Update(dto.Rules.First(x => x.Id == rule.Key));
                     if (count == 0)
                     {
                         throw new InvalidOperationException("No rows were updated for the access rule");
@@ -156,6 +163,8 @@ namespace Umbraco.Core.Persistence.Repositories
                 Database.Delete<AccessRuleDto>("WHERE id=@Id", new {Id = removedRule});
             }
 
+            entity.ClearRemovedRules();
+
             entity.ResetDirtyProperties();
         }
 
@@ -164,4 +173,4 @@ namespace Umbraco.Core.Persistence.Repositories
             return entity.Key;
         }
     }
-}
+}

src/Umbraco.Core/Persistence/Repositories/RecycleBinRepository.cs

@@ -63,6 +63,7 @@ namespace Umbraco.Core.Persistence.Repositories
                 FormatDeleteStatement("cmsContentVersion", "ContentId"),
                 FormatDeleteStatement("cmsContentXml", "nodeId"),
                 FormatDeleteStatement("cmsContent", "nodeId"),
+                //TODO: Why is this being done? We just delete this exact data in the next line
                 "UPDATE umbracoNode SET parentID = '" + RecycleBinId + "' WHERE trashed = '1' AND nodeObjectType = @NodeObjectType",
                 "DELETE FROM umbracoNode WHERE trashed = '1' AND nodeObjectType = @NodeObjectType"
             };
@@ -91,14 +92,18 @@ namespace Umbraco.Core.Persistence.Repositories
             }
         }
 
+        /// <summary>
+        /// A delete statement that will delete anything in the table specified where its PK (keyName) is found in the
+        /// list of umbracoNode.id that have trashed flag set
+        /// </summary>
+        /// <param name="tableName"></param>
+        /// <param name="keyName"></param>
+        /// <returns></returns>
         private string FormatDeleteStatement(string tableName, string keyName)
         {
-            //This query works with sql ce and sql server:
-            //DELETE FROM umbracoUser2NodeNotify WHERE umbracoUser2NodeNotify.nodeId IN 
-            //(SELECT nodeId FROM umbracoUser2NodeNotify as TB1 INNER JOIN umbracoNode as TB2 ON TB1.nodeId = TB2.id WHERE TB2.trashed = '1' AND TB2.nodeObjectType = 'C66BA18E-EAF3-4CFF-8A22-41B16D66A972')
             return
                 string.Format(
-                    "DELETE FROM {0} WHERE {0}.{1} IN (SELECT TB1.{1} FROM {0} as TB1 INNER JOIN umbracoNode as TB2 ON TB1.{1} = TB2.id WHERE TB2.trashed = '1' AND TB2.nodeObjectType = @NodeObjectType)",
+                    "DELETE FROM {0} WHERE {0}.{1} IN (SELECT id FROM umbracoNode WHERE trashed = '1' AND nodeObjectType = @NodeObjectType)",
                     tableName, keyName);
         }
 

src/Umbraco.Core/Persistence/Repositories/TemplateRepository.cs

@@ -241,7 +241,12 @@ namespace Umbraco.Core.Persistence.Repositories
                 {
                     entity.Path = string.Concat(parent.Path, ",", entity.Id);
                 }
-
+                else
+                {
+                    //this means that the master template has been removed, so we need to reset the template's
+                    //path to be at the root
+                    entity.Path = string.Concat("-1,", entity.Id);
+                }
             }
 
             //Get TemplateDto from db to get the Primary key of the entity

src/Umbraco.Core/Persistence/Repositories/VersionableRepositoryBase.cs

@@ -1,10 +1,13 @@
 using System;
 using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Data.SqlTypes;
 using System.Diagnostics;
 using System.Linq;
 using System.Text;
 using System.Text.RegularExpressions;
 using System.Threading.Tasks;
+using System.Xml.Linq;
 using Umbraco.Core.Configuration;
 using Umbraco.Core.Configuration.UmbracoSettings;
 using Umbraco.Core.Logging;
@@ -25,13 +28,16 @@ using Umbraco.Core.IO;
 
 namespace Umbraco.Core.Persistence.Repositories
 {
-    using SqlSyntax;
-
     internal abstract class VersionableRepositoryBase<TId, TEntity> : PetaPocoRepositoryBase<TId, TEntity>
         where TEntity : class, IAggregateRoot
     {
         private readonly IContentSection _contentSection;
 
+        /// <summary>
+        /// This is used for unit tests ONLY
+        /// </summary>
+        internal static bool ThrowOnWarning = false;
+
         protected VersionableRepositoryBase(IDatabaseUnitOfWork work, CacheHelper cache, ILogger logger, ISqlSyntaxProvider sqlSyntax, IContentSection contentSection)
             : base(work, cache, logger, sqlSyntax)
         {
@@ -137,6 +143,40 @@ namespace Umbraco.Core.Persistence.Repositories
 
         #endregion
 
+        /// <summary>
+        /// Gets paged document descendants as XML by path
+        /// </summary>
+        /// <param name="path">Path starts with</param>
+        /// <param name="pageIndex">Page number</param>
+        /// <param name="pageSize">Page size</param>
+        /// <param name="orderBy"></param>
+        /// <param name="totalRecords">Total records the query would return without paging</param>
+        /// <returns>A paged enumerable of XML entries of content items</returns>
+        public virtual IEnumerable<XElement> GetPagedXmlEntriesByPath(string path, long pageIndex, int pageSize, string[] orderBy, out long totalRecords)
+        {
+            var query = new Sql().Select(string.Format("umbracoNode.id, cmsContentXml.{0}", SqlSyntax.GetQuotedColumnName("xml")))
+                .From("umbracoNode")
+                .InnerJoin("cmsContentXml").On("cmsContentXml.nodeId = umbracoNode.id");
+
+            if (path == "-1")
+            {
+                query.Where("umbracoNode.nodeObjectType = @type", new { type = NodeObjectTypeId });
+            }
+            else
+            {
+                query.Where(string.Format("umbracoNode.{0} LIKE (@0)", SqlSyntax.GetQuotedColumnName("path")), path.EnsureEndsWith(",%"));
+            }
+
+            //each order by param needs to be in a bracket! see: https://github.com/toptensoftware/PetaPoco/issues/177
+            query.OrderBy(orderBy == null
+                ? "(umbracoNode.id)"
+                : string.Join(",", orderBy.Select(x => string.Format("({0})", SqlSyntax.GetQuotedColumnName(x)))));
+
+            var pagedResult = Database.Page<ContentXmlDto>(pageIndex + 1, pageSize, query);
+            totalRecords = pagedResult.TotalItems;
+            return pagedResult.Items.Select(dto => XElement.Parse(dto.Xml));
+        }
+
         public int CountDescendants(int parentId, string contentTypeAlias = null)
         {
             var pathMatch = parentId == -1
@@ -348,12 +388,8 @@ namespace Umbraco.Core.Persistence.Repositories
                                 ON CustomPropData.CustomPropValContentId = umbracoNode.id
                 ", sortedInt, sortedDecimal, sortedDate, sortedString, nodeIdSelect.Item2, nodeIdSelect.Item1, versionQuery, sortedSql.Arguments.Length, newestQuery);
 
-                //insert this just above the first LEFT OUTER JOIN (for cmsDocument) or the last WHERE (everything else)
-                string newSql;
-                if (nodeIdSelect.Item1 == "cmsDocument")
-                    newSql = sortedSql.SQL.Insert(sortedSql.SQL.IndexOf("LEFT OUTER JOIN"), outerJoinTempTable);
-                else
-                    newSql = sortedSql.SQL.Insert(sortedSql.SQL.LastIndexOf("WHERE"), outerJoinTempTable);
+                //insert this just above the last WHERE
+                string newSql = sortedSql.SQL.Insert(sortedSql.SQL.LastIndexOf("WHERE"), outerJoinTempTable);
 
                 var newArgs = sortedSql.Arguments.ToList();
                 newArgs.Add(orderBy);
@@ -370,11 +406,14 @@ namespace Umbraco.Core.Persistence.Repositories
                 }
             }
 
-            //no matter what we always MUST order the result also by umbracoNode.id to ensure that all records being ordered by are unique.
-            // if we do not do this then we end up with issues where we are ordering by a field that has duplicate values (i.e. the 'text' column
-            // is empty for many nodes)
-            // see: http://issues.umbraco.org/issue/U4-8831
-            sortedSql.OrderBy("umbracoNode.id");
+            if (orderBySystemField && orderBy != "umbracoNode.id")
+            {
+                //no matter what we always MUST order the result also by umbracoNode.id to ensure that all records being ordered by are unique.
+                // if we do not do this then we end up with issues where we are ordering by a field that has duplicate values (i.e. the 'text' column
+                // is empty for many nodes)
+                // see: http://issues.umbraco.org/issue/U4-8831
+                sortedSql.OrderBy("umbracoNode.id");
+            }
 
             return sortedSql;
 
@@ -384,7 +423,6 @@ namespace Umbraco.Core.Persistence.Repositories
         /// A helper method for inheritors to get the paged results by query in a way that minimizes queries
         /// </summary>
         /// <typeparam name="TDto">The type of the d.</typeparam>
-        /// <typeparam name="TContentBase">The 'true' entity type (i.e. Content, Member, etc...)</typeparam>
         /// <param name="query">The query.</param>
         /// <param name="pageIndex">Index of the page.</param>
         /// <param name="pageSize">Size of the page.</param>
@@ -397,34 +435,30 @@ namespace Umbraco.Core.Persistence.Repositories
         /// <param name="orderBySystemField">Flag to indicate when ordering by system field</param>
         /// <returns></returns>
         /// <exception cref="System.ArgumentNullException">orderBy</exception>
-        protected IEnumerable<TEntity> GetPagedResultsByQuery<TDto, TContentBase>(IQuery<TEntity> query, long pageIndex, int pageSize, out long totalRecords,
+        protected IEnumerable<TEntity> GetPagedResultsByQuery<TDto>(IQuery<TEntity> query, long pageIndex, int pageSize, out long totalRecords,
             Tuple<string, string> nodeIdSelect,
-            Func<Sql, IEnumerable<TEntity>> processQuery,
+            Func<Sql, PagingSqlQuery<TDto>, IEnumerable<TEntity>> processQuery,
             string orderBy,
             Direction orderDirection,
             bool orderBySystemField,
             Func<Tuple<string, object[]>> defaultFilter = null)
-            where TContentBase : class, IAggregateRoot, TEntity
         {
             if (orderBy == null) throw new ArgumentNullException("orderBy");
 
-            // Get base query
-            var sqlBase = GetBaseQuery(false);
+            // Get base query for returning IDs
+            var sqlBaseIds = GetBaseQuery(BaseQueryType.Ids);
+            // Get base query for returning all data
+            var sqlBaseFull = GetBaseQuery(BaseQueryType.FullMultiple);
 
             if (query == null) query = new Query<TEntity>();
-            var translator = new SqlTranslator<TEntity>(sqlBase, query);
-            var sqlQuery = translator.Translate();
-
-            // Note we can't do multi-page for several DTOs like we can multi-fetch and are doing in PerformGetByQuery, 
-            // but actually given we are doing a Get on each one (again as in PerformGetByQuery), we only need the node Id.
-            // So we'll modify the SQL.
-            var sqlNodeIds = new Sql(
-                sqlQuery.SQL.Replace("SELECT *", string.Format("SELECT {0}.{1}", nodeIdSelect.Item1, nodeIdSelect.Item2)),
-                sqlQuery.Arguments);
+            var translatorIds = new SqlTranslator<TEntity>(sqlBaseIds, query);
+            var sqlQueryIds = translatorIds.Translate();
+            var translatorFull = new SqlTranslator<TEntity>(sqlBaseFull, query);
+            var sqlQueryFull = translatorFull.Translate();
 
             //get sorted and filtered sql
             var sqlNodeIdsWithSort = GetSortedSqlForPagedResults(
-                GetFilteredSqlForPagedResults(sqlNodeIds, defaultFilter),
+                GetFilteredSqlForPagedResults(sqlQueryIds, defaultFilter),
                 orderDirection, orderBy, orderBySystemField, nodeIdSelect);
 
             // Get page of results and total count
@@ -433,38 +467,32 @@ namespace Umbraco.Core.Persistence.Repositories
             totalRecords = Convert.ToInt32(pagedResult.TotalItems);
 
             //NOTE: We need to check the actual items returned, not the 'totalRecords', that is because if you request a page number
-            // that doesn't actually have any data on it, the totalRecords will still indicate there are records but there are none in 
+            // that doesn't actually have any data on it, the totalRecords will still indicate there are records but there are none in
             // the pageResult, then the GetAll will actually return ALL records in the db.
             if (pagedResult.Items.Any())
             {
-                //Crete the inner paged query that was used above to get the paged result, we'll use that as the inner sub query
+                //Create the inner paged query that was used above to get the paged result, we'll use that as the inner sub query
                 var args = sqlNodeIdsWithSort.Arguments;
                 string sqlStringCount, sqlStringPage;
                 Database.BuildPageQueries<TDto>(pageIndex * pageSize, pageSize, sqlNodeIdsWithSort.SQL, ref args, out sqlStringCount, out sqlStringPage);
 
-                //if this is for sql server, the sqlPage will start with a SELECT * but we don't want that, we only want to return the nodeId                
-                sqlStringPage = sqlStringPage
-                    .Replace("SELECT *",
-                        //This ensures we only take the field name of the node id select and not the table name - since the resulting select
-                        // will ony work with the field name.
-                        "SELECT " + nodeIdSelect.Item2);
-
-                //We need to make this an inner join on the paged query
-                var splitQuery = sqlQuery.SQL.Split(new[] { "WHERE " }, StringSplitOptions.None);
-                var withInnerJoinSql = new Sql(splitQuery[0])
+                //We need to make this FULL query an inner join on the paged ID query
+                var splitQuery = sqlQueryFull.SQL.Split(new[] { "WHERE " }, StringSplitOptions.None);
+                var fullQueryWithPagedInnerJoin = new Sql(splitQuery[0])
                     .Append("INNER JOIN (")
                     //join the paged query with the paged query arguments
                     .Append(sqlStringPage, args)
                     .Append(") temp ")
                     .Append(string.Format("ON {0}.{1} = temp.{1}", nodeIdSelect.Item1, nodeIdSelect.Item2))
                     //add the original where clause back with the original arguments
-                    .Where(splitQuery[1], sqlQuery.Arguments);
+                    .Where(splitQuery[1], sqlQueryIds.Arguments);
 
                 //get sorted and filtered sql
                 var fullQuery = GetSortedSqlForPagedResults(
-                    GetFilteredSqlForPagedResults(withInnerJoinSql, defaultFilter),
+                    GetFilteredSqlForPagedResults(fullQueryWithPagedInnerJoin, defaultFilter),
                     orderDirection, orderBy, orderBySystemField, nodeIdSelect);
-                return processQuery(fullQuery);
+                
+                return processQuery(fullQuery, new PagingSqlQuery<TDto>(Database, sqlNodeIdsWithSort, pageIndex, pageSize));
             }
             else
             {
@@ -474,38 +502,56 @@ namespace Umbraco.Core.Persistence.Repositories
             return result;
         }
 
-        protected IDictionary<int, PropertyCollection> GetPropertyCollection(
-            Sql docSql,
-            IEnumerable<DocumentDefinition> documentDefs)
+        /// <summary>
+        /// Gets the property collection for a non-paged query
+        /// </summary>
+        /// <param name="sql"></param>
+        /// <param name="documentDefs"></param>
+        /// <returns></returns>
+        protected IDictionary<Guid, PropertyCollection> GetPropertyCollection(
+            Sql sql,
+            IReadOnlyCollection<DocumentDefinition> documentDefs)
         {
-            if (documentDefs.Any() == false) return new Dictionary<int, PropertyCollection>();
+            return GetPropertyCollection(new PagingSqlQuery(sql), documentDefs);
+        }
 
-            //we need to parse the original SQL statement and reduce the columns to just cmsContent.nodeId, cmsContentVersion.VersionId so that we can use 
+        /// <summary>
+        /// Gets the property collection for a query
+        /// </summary>
+        /// <param name="pagingSqlQuery"></param>
+        /// <param name="documentDefs"></param>
+        /// <returns></returns>
+        protected IDictionary<Guid, PropertyCollection> GetPropertyCollection(
+            PagingSqlQuery pagingSqlQuery,
+            IReadOnlyCollection<DocumentDefinition> documentDefs)
+        {
+            if (documentDefs.Count == 0) return new Dictionary<Guid, PropertyCollection>();
+
+            //initialize to the query passed in
+            var docSql = pagingSqlQuery.PrePagedSql;
+
+            //we need to parse the original SQL statement and reduce the columns to just cmsContent.nodeId, cmsContentVersion.VersionId so that we can use
             // the statement to go get the property data for all of the items by using an inner join
             var parsedOriginalSql = "SELECT {0} " + docSql.SQL.Substring(docSql.SQL.IndexOf("FROM", StringComparison.Ordinal));
-            //now remove everything from an Orderby clause and beyond
-            if (parsedOriginalSql.InvariantContains("ORDER BY "))
+            
+            if (pagingSqlQuery.HasPaging)
             {
+                //if this is a paged query, build the paged query with the custom column substitution, then re-assign
+                docSql = pagingSqlQuery.BuildPagedQuery("{0}");
+                parsedOriginalSql = docSql.SQL;
+            }
+            else if (parsedOriginalSql.InvariantContains("ORDER BY "))
+            {
+                //now remove everything from an Orderby clause and beyond if this is unpaged data
                 parsedOriginalSql = parsedOriginalSql.Substring(0, parsedOriginalSql.LastIndexOf("ORDER BY ", StringComparison.Ordinal));
             }
 
-            var propSql = new Sql(@"SELECT cmsPropertyData.*
-FROM cmsPropertyData
-INNER JOIN cmsPropertyType
-ON cmsPropertyData.propertytypeid = cmsPropertyType.id
-INNER JOIN 
-	(" + string.Format(parsedOriginalSql, "cmsContent.nodeId, cmsContentVersion.VersionId") + @") as docData
-ON cmsPropertyData.versionId = docData.VersionId AND cmsPropertyData.contentNodeId = docData.nodeId
-LEFT OUTER JOIN cmsDataTypePreValues
-ON cmsPropertyType.dataTypeId = cmsDataTypePreValues.datatypeNodeId", docSql.Arguments);
-
-            var allPropertyData = Database.Fetch<PropertyDataDto>(propSql);
-
-            //This is a lazy access call to get all prevalue data for the data types that make up all of these properties which we use
-            // below if any property requires tag support
-            var allPreValues = new Lazy<IEnumerable<DataTypePreValueDto>>(() =>
-            {
-                var preValsSql = new Sql(@"SELECT a.id, a.value, a.sortorder, a.alias, a.datatypeNodeId
+            //This retrieves all pre-values for all data types that are referenced for all property types
+            // that exist in the data set.
+            //Benchmarks show that eagerly loading these so that we can lazily read the property data
+            // below (with the use of Query intead of Fetch) go about 30% faster, so we'll eagerly load
+            // this now since we cannot execute another reader inside of reading the property data.
+            var preValsSql = new Sql(@"SELECT a.id, a.value, a.sortorder, a.alias, a.datatypeNodeId
 FROM cmsDataTypePreValues a
 WHERE EXISTS(
     SELECT DISTINCT b.id as preValIdInner
@@ -513,29 +559,86 @@ WHERE EXISTS(
 	INNER JOIN cmsPropertyType
 	ON b.datatypeNodeId = cmsPropertyType.dataTypeId
     INNER JOIN 
-	    (" + string.Format(parsedOriginalSql, "DISTINCT cmsContent.contentType") + @") as docData
+	    (" + string.Format(parsedOriginalSql, "cmsContent.contentType") + @") as docData
     ON cmsPropertyType.contentTypeId = docData.contentType
     WHERE a.id = b.id)", docSql.Arguments);
 
-                return Database.Fetch<DataTypePreValueDto>(preValsSql);
-            });
+            var allPreValues = Database.Fetch<DataTypePreValueDto>(preValsSql);
 
-            var result = new Dictionary<int, PropertyCollection>();
+            //It's Important with the sort order here! We require this to be sorted by node id,
+            // this is required because this data set can be huge depending on the page size. Due
+            // to it's size we need to be smart about iterating over the property values to build
+            // the document. Before we used to use Linq to get the property data for a given content node
+            // and perform a Distinct() call. This kills performance because that would mean if we had 7000 nodes
+            // and on each iteration we will perform a lookup on potentially 100,000 property rows against the node
+            // id which turns out to be a crazy amount of iterations. Instead we know it's sorted by this value we'll
+            // keep an index stored of the rows being read so we never have to re-iterate the entire data set
+            // on each document iteration.
+            var propSql = new Sql(@"SELECT cmsPropertyData.*
+FROM cmsPropertyData
+INNER JOIN cmsPropertyType
+ON cmsPropertyData.propertytypeid = cmsPropertyType.id
+INNER JOIN 
+	(" + string.Format(parsedOriginalSql, "cmsContent.nodeId, cmsContentVersion.VersionId") + @") as docData
+ON cmsPropertyData.versionId = docData.VersionId AND cmsPropertyData.contentNodeId = docData.nodeId
+ORDER BY contentNodeId, versionId, propertytypeid
+", docSql.Arguments);
+            
+            //This does NOT fetch all data into memory in a list, this will read
+            // over the records as a data reader, this is much better for performance and memory,
+            // but it means that during the reading of this data set, nothing else can be read
+            // from SQL server otherwise we'll get an exception.
+            var allPropertyData = Database.Query<PropertyDataDto>(propSql);
 
+            var result = new Dictionary<Guid, PropertyCollection>();
             var propertiesWithTagSupport = new Dictionary<string, SupportTagsAttribute>();
+            //used to track the resolved composition property types per content type so we don't have to re-resolve (ToArray) the list every time
+            var resolvedCompositionProperties = new Dictionary<int, PropertyType[]>();
 
-            //iterate each definition grouped by it's content type - this will mean less property type iterations while building 
-            // up the property collections
-            foreach (var compositionGroup in documentDefs.GroupBy(x => x.Composition))
+            //keep track of the current property data item being enumerated
+            var propertyDataSetEnumerator = allPropertyData.GetEnumerator();
+            var hasCurrent = false; // initially there is no enumerator.Current
+
+            var comparer = new DocumentDefinitionComparer(SqlSyntax);
+
+            try
             {
-                var compositionProperties = compositionGroup.Key.CompositionPropertyTypes.ToArray();
-
-                foreach (var def in compositionGroup)
+                //This must be sorted by node id because this is how we are sorting the query to lookup property types above,
+                // which allows us to more efficiently iterate over the large data set of property values
+                foreach (var def in documentDefs.OrderBy(x => x.Id).ThenBy(x => x.Version, comparer))
                 {
-                    var propertyDataDtos = allPropertyData.Where(x => x.NodeId == def.Id).Distinct();
+                    // get the resolved properties from our local cache, or resolve them and put them in cache
+                    PropertyType[] compositionProperties;
+                    if (resolvedCompositionProperties.ContainsKey(def.Composition.Id))
+                    {
+                        compositionProperties = resolvedCompositionProperties[def.Composition.Id];
+                    }
+                    else
+                    {
+                        compositionProperties = def.Composition.CompositionPropertyTypes.ToArray();
+                        resolvedCompositionProperties[def.Composition.Id] = compositionProperties;
+                    }
 
-                    var propertyFactory = new PropertyFactory(compositionProperties, def.Version, def.Id, def.CreateDate, def.VersionDate);
-                    var properties = propertyFactory.BuildEntity(propertyDataDtos.ToArray()).ToArray();
+                    // assemble the dtos for this def
+                    // use the available enumerator.Current if any else move to next
+                    var propertyDataDtos = new List<PropertyDataDto>();
+                    while (hasCurrent || propertyDataSetEnumerator.MoveNext())
+                    {
+                        //Not checking null on VersionId because it can never be null - no idea why it's set to nullable
+                        // ReSharper disable once PossibleInvalidOperationException
+                        if (propertyDataSetEnumerator.Current.VersionId.Value == def.Version)
+                        {
+                            hasCurrent = false; // enumerator.Current is not available
+                            propertyDataDtos.Add(propertyDataSetEnumerator.Current);
+                        }
+                        else
+                        {
+                            hasCurrent = true;  // enumerator.Current is available for another def
+                            break;              // no more propertyDataDto for this def
+                        }
+                    }
+
+                    var properties = PropertyFactory.BuildEntity(propertyDataDtos, compositionProperties, def.CreateDate, def.VersionDate).ToArray();
 
                     foreach (var property in properties)
                     {
@@ -552,7 +655,7 @@ WHERE EXISTS(
                             propertiesWithTagSupport[property.PropertyType.PropertyEditorAlias] = tagSupport;
 
                             //this property has tags, so we need to extract them and for that we need the prevals which we've already looked up
-                            var preValData = allPreValues.Value.Where(x => x.DataTypeNodeId == property.PropertyType.DataTypeDefinitionId)
+                            var preValData = allPreValues.Where(x => x.DataTypeNodeId == property.PropertyType.DataTypeDefinitionId)
                                 .Distinct()
                                 .ToArray();
 
@@ -568,38 +671,30 @@ WHERE EXISTS(
                         }
                     }
 
-                    if (result.ContainsKey(def.Id))
+                    if (result.ContainsKey(def.Version))
                     {
-                        Logger.Warn<VersionableRepositoryBase<TId, TEntity>>("The query returned multiple property sets for document definition " + def.Id + ", " + def.Composition.Name);
+                        var msg = string.Format("The query returned multiple property sets for document definition {0}, {1}, {2}", def.Id, def.Version, def.Composition.Name);
+                        if (ThrowOnWarning)
+                        {
+                            throw new InvalidOperationException(msg);
+                        }
+                        else
+                        {
+                            Logger.Warn<VersionableRepositoryBase<TId, TEntity>>(msg);
+                        }
                     }
-                    result[def.Id] = new PropertyCollection(properties);
+                    result[def.Version] = new PropertyCollection(properties);
                 }
             }
+            finally
+            {
+                propertyDataSetEnumerator.Dispose();
+            }
 
             return result;
+
         }
-
-        public class DocumentDefinition
-        {
-            /// <summary>
-            /// Initializes a new instance of the <see cref="T:System.Object"/> class.
-            /// </summary>
-            public DocumentDefinition(int id, Guid version, DateTime versionDate, DateTime createDate, IContentTypeComposition composition)
-            {
-                Id = id;
-                Version = version;
-                VersionDate = versionDate;
-                CreateDate = createDate;
-                Composition = composition;
-            }
-
-            public int Id { get; set; }
-            public Guid Version { get; set; }
-            public DateTime VersionDate { get; set; }
-            public DateTime CreateDate { get; set; }
-            public IContentTypeComposition Composition { get; set; }
-        }
-
+        
         protected virtual string GetDatabaseFieldNameForOrderBy(string orderBy)
         {
             // Translate the passed order by field (which were originally defined for in-memory object sorting
@@ -611,8 +706,8 @@ WHERE EXISTS(
                 case "NAME":
                     return "umbracoNode.text";
                 case "PUBLISHED":
-                    return "cmsDocument.published";
                 case "OWNER":
+                    return "cmsDocument.published";
                     //TODO: This isn't going to work very nicely because it's going to order by ID, not by letter
                     return "umbracoNode.nodeUser";
                 // Members only
@@ -688,5 +783,233 @@ WHERE EXISTS(
 
             return allsuccess;
         }
+
+        /// <summary>
+        /// For Paging, repositories must support returning different query for the query type specified
+        /// </summary>
+        /// <param name="queryType"></param>
+        /// <returns></returns>
+        protected abstract Sql GetBaseQuery(BaseQueryType queryType);
+
+        internal class DocumentDefinitionCollection : KeyedCollection<ValueType, DocumentDefinition>
+        {
+            private readonly bool _includeAllVersions;
+
+            /// <summary>
+            /// Constructor specifying if all versions should be allowed, in that case the key for the collection becomes the versionId (GUID)
+            /// </summary>
+            /// <param name="includeAllVersions"></param>
+            public DocumentDefinitionCollection(bool includeAllVersions = false)
+            {
+                _includeAllVersions = includeAllVersions;
+            }
+
+            protected override ValueType GetKeyForItem(DocumentDefinition item)
+            {
+                return _includeAllVersions ? (ValueType)item.Version : item.Id;
+            }
+
+            /// <summary>
+            /// if this key already exists if it does then we need to check
+            /// if the existing item is 'older' than the new item and if that is the case we'll replace the older one
+            /// </summary>
+            /// <param name="item"></param>
+            /// <returns></returns>
+            public bool AddOrUpdate(DocumentDefinition item)
+            {
+                //if we are including all versions then just add, we aren't checking for latest
+                if (_includeAllVersions)
+                {
+                    base.Add(item);
+                    return true;
+                }
+
+                if (Dictionary == null)
+                {
+                    base.Add(item);
+                    return true;
+                }
+
+                var key = GetKeyForItem(item);
+                DocumentDefinition found;
+                if (TryGetValue(key, out found))
+                {
+                    //it already exists and it's older so we need to replace it
+                    if (item.VersionId > found.VersionId)
+                    {
+                        var currIndex = Items.IndexOf(found);
+                        if (currIndex == -1)
+                            throw new IndexOutOfRangeException("Could not find the item in the list: " + found.Version);
+
+                        //replace the current one with the newer one
+                        SetItem(currIndex, item);
+                        return true;
+                    }
+                    //could not add or update
+                    return false;
+                }
+                
+                base.Add(item);
+                return true;
+            }
+          
+            public bool TryGetValue(ValueType key, out DocumentDefinition val)
+            {
+                if (Dictionary == null)
+                {
+                    val = null;
+                    return false;
+                }
+                return Dictionary.TryGetValue(key, out val);
+            }
+        }
+
+        /// <summary>
+        /// A custom comparer required for sorting entities by GUIDs to match how the sorting of GUIDs works on SQL server
+        /// </summary>
+        /// <remarks>
+        /// MySql sorts GUIDs as a string, MSSQL sorts based on byte sections, this comparer will allow sorting GUIDs to be the same as how SQL server does
+        /// </remarks>
+        private class DocumentDefinitionComparer : IComparer<Guid>
+        {
+            private readonly ISqlSyntaxProvider _sqlSyntax;
+
+            public DocumentDefinitionComparer(ISqlSyntaxProvider sqlSyntax)
+            {
+                _sqlSyntax = sqlSyntax;
+            }
+
+            public int Compare(Guid x, Guid y)
+            {
+                //MySql sorts on GUIDs as strings (i.e. normal)
+                if (_sqlSyntax is MySqlSyntaxProvider)
+                {
+                    return x.CompareTo(y);
+                }
+
+                //MSSQL doesn't it sorts them on byte sections!
+                return new SqlGuid(x).CompareTo(new SqlGuid(y));
+            }
+        }
+
+        internal class DocumentDefinition
+        {
+            /// <summary>
+            /// Initializes a new instance of the <see cref="T:System.Object"/> class.
+            /// </summary>
+            public DocumentDefinition(DocumentDto dto, IContentTypeComposition composition)
+            {
+                DocumentDto = dto;
+                ContentVersionDto = dto.ContentVersionDto;
+                Composition = composition;
+            }
+
+            public DocumentDefinition(ContentVersionDto dto, IContentTypeComposition composition)
+            {
+                ContentVersionDto = dto;
+                Composition = composition;
+            }
+
+            public DocumentDto DocumentDto { get; private set; }
+            public ContentVersionDto ContentVersionDto { get; private set; }
+
+            public int Id
+            {
+                get { return ContentVersionDto.NodeId; }
+            }
+            
+            public Guid Version
+            {
+                get { return DocumentDto != null ? DocumentDto.VersionId : ContentVersionDto.VersionId; }
+            }
+
+            /// <summary>
+            /// This is used to determien which version is the most recent
+            /// </summary>
+            public int VersionId
+            {
+                get { return ContentVersionDto.Id; }
+            }
+
+            public DateTime VersionDate
+            {
+                get { return ContentVersionDto.VersionDate; }
+            }
+
+            public DateTime CreateDate
+            {
+                get { return ContentVersionDto.ContentDto.NodeDto.CreateDate; }
+            }
+
+            public IContentTypeComposition Composition { get; set; }            
+
+            
+        }
+
+        /// <summary>
+        /// An object representing a query that may contain paging information
+        /// </summary>
+        internal class PagingSqlQuery
+        {
+            public Sql PrePagedSql { get; private set; }
+
+            public PagingSqlQuery(Sql prePagedSql)
+            {
+                PrePagedSql = prePagedSql;
+            }
+
+            public virtual bool HasPaging
+            {
+                get { return false; }
+            }
+
+            public virtual Sql BuildPagedQuery(string selectColumns)
+            {
+                throw new InvalidOperationException("This query has no paging information");
+            }
+        }
+
+        /// <summary>
+        /// An object representing a query that contains paging information
+        /// </summary>
+        /// <typeparam name="T"></typeparam>
+        internal class PagingSqlQuery<T> : PagingSqlQuery
+        {
+            private readonly Database _db;
+            private readonly long _pageIndex;
+            private readonly int _pageSize;
+
+            public PagingSqlQuery(Database db, Sql prePagedSql, long pageIndex, int pageSize) : base(prePagedSql)
+            {
+                _db = db;
+                _pageIndex = pageIndex;
+                _pageSize = pageSize;                
+            }
+
+            public override bool HasPaging
+            {
+                get { return _pageSize > 0; }
+            }
+
+            /// <summary>
+            /// Creates a paged query based on the original query and subtitutes the selectColumns specified
+            /// </summary>
+            /// <param name="selectColumns"></param>
+            /// <returns></returns>
+            public override Sql BuildPagedQuery(string selectColumns)
+            {
+                if (HasPaging == false) throw new InvalidOperationException("This query has no paging information");
+
+                var resultSql = string.Format("SELECT {0} {1}", selectColumns, PrePagedSql.SQL.Substring(PrePagedSql.SQL.IndexOf("FROM", StringComparison.Ordinal)));
+
+                //this query is meant to be paged so we need to generate the paging syntax
+                //Create the inner paged query that was used above to get the paged result, we'll use that as the inner sub query
+                var args = PrePagedSql.Arguments;
+                string sqlStringCount, sqlStringPage;
+                _db.BuildPageQueries<T>(_pageIndex * _pageSize, _pageSize, resultSql, ref args, out sqlStringCount, out sqlStringPage);
+
+                return new Sql(sqlStringPage, args);
+            }
+        }
     }
 }

src/Umbraco.Core/Security/BackOfficeSignInManager.cs

@@ -114,7 +114,7 @@ namespace Umbraco.Core.Security
                     AllowRefresh = true,
                     IssuedUtc = nowUtc,
                     ExpiresUtc = nowUtc.AddMinutes(GlobalSettings.TimeOutInMinutes)
-                }, userIdentity, rememberBrowserIdentity);
+                }, userIdentity, rememberBrowserIdentity);                
             }
             else
             {
@@ -127,6 +127,10 @@ namespace Umbraco.Core.Security
                 }, userIdentity);
             }
 
+            //track the last login date
+            user.LastLoginDateUtc = DateTime.UtcNow;
+            await UserManager.UpdateAsync(user);
+
             _logger.WriteCore(TraceEventType.Information, 0,
                 string.Format(
                     "Login attempt succeeded for username {0} from IP address {1}",

src/Umbraco.Core/Security/BackOfficeUserStore.cs

@@ -625,6 +625,12 @@ namespace Umbraco.Core.Security
             var anythingChanged = false;
             //don't assign anything if nothing has changed as this will trigger
             //the track changes of the model
+            if ((user.LastLoginDate != default(DateTime) && identityUser.LastLoginDateUtc.HasValue == false)
+                || identityUser.LastLoginDateUtc.HasValue && user.LastLoginDate.ToUniversalTime() != identityUser.LastLoginDateUtc.Value)
+            {
+                anythingChanged = true;
+                user.LastLoginDate = identityUser.LastLoginDateUtc.Value.ToLocalTime();
+            }
             if (user.Name != identityUser.Name && identityUser.Name.IsNullOrWhiteSpace() == false)
             {
                 anythingChanged = true;

src/Umbraco.Core/Services/ContentService.cs

@@ -2,6 +2,7 @@ using System;
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Globalization;
+using System.IO;
 using System.Linq;
 using System.Threading;
 using System.Xml;
@@ -11,6 +12,7 @@ using Umbraco.Core.Configuration;
 using Umbraco.Core.Events;
 using Umbraco.Core.Logging;
 using Umbraco.Core.Models;
+using Umbraco.Core.Models.EntityBase;
 using Umbraco.Core.Models.Membership;
 using Umbraco.Core.Models.Rdbms;
 using Umbraco.Core.Persistence;
@@ -583,7 +585,7 @@ namespace Umbraco.Core.Services
 
         [Obsolete("Use the overload with 'long' parameter types instead")]
         [EditorBrowsable(EditorBrowsableState.Never)]
-        public IEnumerable<IContent> GetPagedDescendants(int id, int pageIndex, int pageSize, out int totalChildren, string orderBy = "Path", Direction orderDirection = Direction.Ascending, string filter = "")
+        public IEnumerable<IContent> GetPagedDescendants(int id, int pageIndex, int pageSize, out int totalChildren, string orderBy = "path", Direction orderDirection = Direction.Ascending, string filter = "")
         {
             long total;
             var result = GetPagedDescendants(id, Convert.ToInt64(pageIndex), pageSize, out total, orderBy, orderDirection, true, filter);
@@ -602,7 +604,7 @@ namespace Umbraco.Core.Services
         /// <param name="orderDirection">Direction to order by</param>
         /// <param name="filter">Search text filter</param>
         /// <returns>An Enumerable list of <see cref="IContent"/> objects</returns> 
-        public IEnumerable<IContent> GetPagedDescendants(int id, long pageIndex, int pageSize, out long totalChildren, string orderBy = "Path", Direction orderDirection = Direction.Ascending, string filter = "")
+        public IEnumerable<IContent> GetPagedDescendants(int id, long pageIndex, int pageSize, out long totalChildren, string orderBy = "path", Direction orderDirection = Direction.Ascending, string filter = "")
         {
             return GetPagedDescendants(id, pageIndex, pageSize, out totalChildren, orderBy, orderDirection, true, filter);
         }
@@ -714,7 +716,12 @@ namespace Umbraco.Core.Services
         /// <returns>An Enumerable list of <see cref="IContent"/> objects</returns>
         public IEnumerable<IContent> GetDescendants(IContent content)
         {
-            using (var repository = RepositoryFactory.CreateContentRepository(UowProvider.GetUnitOfWork()))
+            //This is a check to ensure that the path is correct for this entity to avoid problems like: http://issues.umbraco.org/issue/U4-9336 due to data corruption
+            if (content.ValidatePath() == false)
+                throw new InvalidDataException(string.Format("The content item {0} has an invalid path: {1} with parentID: {2}", content.Id, content.Path, content.ParentId));
+
+            var uow = UowProvider.GetUnitOfWork();
+            using (var repository = RepositoryFactory.CreateContentRepository(uow))
             {
                 var pathMatch = content.Path + ",";
                 var query = Query<IContent>.Builder.Where(x => x.Path.StartsWith(pathMatch) && x.Id != content.Id);
@@ -996,6 +1003,10 @@ namespace Umbraco.Core.Services
 
             using (new WriteLock(Locker))
             {
+                //Hack: this ensures that the entity's path is valid and if not it fixes/persists it
+                //see: http://issues.umbraco.org/issue/U4-9336
+                content.EnsureValidPath(Logger, entity => GetById(entity.ParentId), QuickUpdate);
+
                 var originalPath = content.Path;
 
                 if (Trashing.IsRaisedEventCancelled(
@@ -1683,16 +1694,16 @@ namespace Umbraco.Core.Services
         /// <returns>True if sorting succeeded, otherwise False</returns>
         public bool Sort(IEnumerable<IContent> items, int userId = 0, bool raiseEvents = true)
         {
+            var asArray = items.ToArray();
             if (raiseEvents)
             {
-                if (Saving.IsRaisedEventCancelled(new SaveEventArgs<IContent>(items), this))
+                if (Saving.IsRaisedEventCancelled(new SaveEventArgs<IContent>(asArray), this))
                     return false;
             }
 
             var shouldBePublished = new List<IContent>();
             var shouldBeSaved = new List<IContent>();
-
-            var asArray = items.ToArray();
+            
             using (new WriteLock(Locker))
             {
                 var uow = UowProvider.GetUnitOfWork();
@@ -1753,6 +1764,31 @@ namespace Umbraco.Core.Services
             return true;
         }
 
+        /// <summary>
+        /// Gets paged content descendants as XML by path
+        /// </summary>
+        /// <param name="path">Path starts with</param>
+        /// <param name="pageIndex">Page number</param>
+        /// <param name="pageSize">Page size</param>
+        /// <param name="totalRecords">Total records the query would return without paging</param>
+        /// <returns>A paged enumerable of XML entries of content items</returns>
+        public IEnumerable<XElement> GetPagedXmlEntries(string path, long pageIndex, int pageSize, out long totalRecords)
+        {
+            Mandate.ParameterCondition(pageIndex >= 0, "pageIndex");
+            Mandate.ParameterCondition(pageSize > 0, "pageSize");
+
+            var uow = UowProvider.GetUnitOfWork();
+            using (var repository = RepositoryFactory.CreateContentRepository(uow))
+            {
+                var contents = repository.GetPagedXmlEntriesByPath(path, pageIndex, pageSize,
+                    //This order by is VERY important! This allows us to figure out what is implicitly not published, see ContentRepository.BuildXmlCache and
+                    // UmbracoContentIndexer.PerformIndexAll which uses the logic based on this sort order
+                    new[] {"level", "parentID", "sortOrder"},
+                    out totalRecords);
+                return contents;
+            }
+        }
+
         /// <summary>
         /// This builds the Xml document used for the XML cache
         /// </summary>
@@ -1812,6 +1848,23 @@ namespace Umbraco.Core.Services
 
         #region Private Methods
 
+        /// <summary>
+        /// Hack: This is used to fix some data if an entity's properties are invalid/corrupt
+        /// </summary>
+        /// <param name="content"></param>
+        private void QuickUpdate(IContent content)
+        {
+            if (content == null) throw new ArgumentNullException("content");
+            if (content.HasIdentity == false) throw new InvalidOperationException("Cannot update an entity without an Identity");
+
+            var uow = UowProvider.GetUnitOfWork();
+            using (var repository = RepositoryFactory.CreateContentRepository(uow))
+            {
+                repository.AddOrUpdate(content);                
+                uow.Commit();
+            }
+        }
+
         private void Audit(AuditType type, string message, int userId, int objectId)
         {
             var uow = UowProvider.GetUnitOfWork();
@@ -1919,6 +1972,10 @@ namespace Umbraco.Core.Services
 
             using (new WriteLock(Locker))
             {
+                //Hack: this ensures that the entity's path is valid and if not it fixes/persists it
+                //see: http://issues.umbraco.org/issue/U4-9336
+                content.EnsureValidPath(Logger, entity => GetById(entity.ParentId), QuickUpdate);
+
                 var result = new List<Attempt<PublishStatus>>();
 
                 //Check if parent is published (although not if its a root node) - if parent isn't published this Content cannot be published
@@ -2128,6 +2185,7 @@ namespace Umbraco.Core.Services
                 //We need to check if children and their publish state to ensure that we 'republish' content that was previously published
                 if (published && previouslyPublished == false && HasChildren(content.Id))
                 {
+                    //TODO: Horrible for performance if there are lots of descendents! We should page if anything but this is crazy
                     var descendants = GetPublishedDescendants(content);
 
                     _publishingStrategy.PublishingFinalized(descendants, false);
@@ -2160,6 +2218,11 @@ namespace Umbraco.Core.Services
                 }
             }
 
+            if (string.IsNullOrWhiteSpace(content.Name))
+            {
+                throw new ArgumentException("Cannot save content with empty name.");
+            }
+
             using (new WriteLock(Locker))
             {
                 var uow = UowProvider.GetUnitOfWork();

src/Umbraco.Core/Services/ContentTypeService.cs

@@ -719,8 +719,13 @@ namespace Umbraco.Core.Services
         /// <param name="userId">Optional id of the user saving the ContentType</param>
         public void Save(IContentType contentType, int userId = 0)
         {
-	        if (SavingContentType.IsRaisedEventCancelled(new SaveEventArgs<IContentType>(contentType), this))
-				return;
+            if (SavingContentType.IsRaisedEventCancelled(new SaveEventArgs<IContentType>(contentType), this))
+                return;
+
+            if (string.IsNullOrWhiteSpace(contentType.Name))
+            {
+                throw new ArgumentException("Cannot save content type with empty name.");
+            }
 
             using (new WriteLock(Locker))
             {

src/Umbraco.Core/Services/DataTypeService.cs

@@ -361,8 +361,13 @@ namespace Umbraco.Core.Services
         /// <param name="userId">Id of the user issueing the save</param>
         public void Save(IDataTypeDefinition dataTypeDefinition, int userId = 0)
         {
-	        if (Saving.IsRaisedEventCancelled(new SaveEventArgs<IDataTypeDefinition>(dataTypeDefinition), this)) 
-				return;
+            if (Saving.IsRaisedEventCancelled(new SaveEventArgs<IDataTypeDefinition>(dataTypeDefinition), this)) 
+                return;
+
+            if (string.IsNullOrWhiteSpace(dataTypeDefinition.Name))
+            {
+                throw new ArgumentException("Cannot save datatype with empty name.");
+            }
 
             var uow = UowProvider.GetUnitOfWork();
             using (var repository = RepositoryFactory.CreateDataTypeDefinitionRepository(uow))

src/Umbraco.Core/Services/IContentService.cs

@@ -2,6 +2,7 @@ using System;
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Xml;
+using System.Xml.Linq;
 using Umbraco.Core.Models;
 using Umbraco.Core.Models.Membership;
 using Umbraco.Core.Persistence.DatabaseModelDefinitions;
@@ -95,6 +96,19 @@ namespace Umbraco.Core.Services
     /// </summary>
     public interface IContentService : IService
     {
+        /// <summary>
+        /// Gets all XML entries found in the cmsContentXml table based on the given path
+        /// </summary>
+        /// <param name="path">Path starts with</param>
+        /// <param name="pageIndex">Page number</param>
+        /// <param name="pageSize">Page size</param>
+        /// <param name="totalRecords">Total records the query would return without paging</param>
+        /// <returns>A paged enumerable of XML entries of content items</returns>
+        /// <remarks>
+        /// If -1 is passed, then this will return all content xml entries, otherwise will return all descendents from the path
+        /// </remarks>
+        IEnumerable<XElement> GetPagedXmlEntries(string path, long pageIndex, int pageSize, out long totalRecords);
+
         /// <summary>
         /// This builds the Xml document used for the XML cache
         /// </summary>
@@ -245,7 +259,7 @@ namespace Umbraco.Core.Services
         [Obsolete("Use the overload with 'long' parameter types instead")]
         [EditorBrowsable(EditorBrowsableState.Never)]
         IEnumerable<IContent> GetPagedDescendants(int id, int pageIndex, int pageSize, out int totalRecords,
-            string orderBy = "Path", Direction orderDirection = Direction.Ascending, string filter = "");
+            string orderBy = "path", Direction orderDirection = Direction.Ascending, string filter = "");
 
         /// <summary>
         /// Gets a collection of <see cref="IContent"/> objects by Parent Id
@@ -259,7 +273,7 @@ namespace Umbraco.Core.Services
         /// <param name="filter">Search text filter</param>
         /// <returns>An Enumerable list of <see cref="IContent"/> objects</returns>
         IEnumerable<IContent> GetPagedDescendants(int id, long pageIndex, int pageSize, out long totalRecords,
-            string orderBy = "Path", Direction orderDirection = Direction.Ascending, string filter = "");
+            string orderBy = "path", Direction orderDirection = Direction.Ascending, string filter = "");
 
         /// <summary>
         /// Gets a collection of <see cref="IContent"/> objects by Parent Id

src/Umbraco.Core/Services/IMediaService.cs

@@ -80,6 +80,7 @@ namespace Umbraco.Core.Services
         /// </param>
         void RebuildXmlStructures(params int[] contentTypeIds);
 
+        int CountNotTrashed(string contentTypeAlias = null);
         int Count(string contentTypeAlias = null);
         int CountChildren(int parentId, string contentTypeAlias = null);
         int CountDescendants(int parentId, string contentTypeAlias = null);
@@ -166,10 +167,26 @@ namespace Umbraco.Core.Services
         IEnumerable<IMedia> GetPagedChildren(int id, long pageIndex, int pageSize, out long totalRecords,
             string orderBy, Direction orderDirection, bool orderBySystemField, string filter);
 
+        /// <summary>
+        /// Gets a collection of <see cref="IMedia"/> objects by Parent Id
+        /// </summary>
+        /// <param name="id">Id of the Parent to retrieve Children from</param>
+        /// <param name="pageIndex">Page number</param>
+        /// <param name="pageSize">Page size</param>
+        /// <param name="totalRecords">Total records query would return without paging</param>
+        /// <param name="orderBy">Field to order by</param>
+        /// <param name="orderDirection">Direction to order by</param>
+        /// <param name="orderBySystemField">Flag to indicate when ordering by system field</param>
+        /// <param name="filter">Search text filter</param>
+        /// <param name="contentTypeFilter">A list of content type Ids to filter the list by</param>
+        /// <returns>An Enumerable list of <see cref="IContent"/> objects</returns>
+        IEnumerable<IMedia> GetPagedChildren(int id, long pageIndex, int pageSize, out long totalRecords,
+            string orderBy, Direction orderDirection, bool orderBySystemField, string filter, int[] contentTypeFilter);
+
         [Obsolete("Use the overload with 'long' parameter types instead")]
         [EditorBrowsable(EditorBrowsableState.Never)]
         IEnumerable<IMedia> GetPagedDescendants(int id, int pageIndex, int pageSize, out int totalRecords,
-            string orderBy = "Path", Direction orderDirection = Direction.Ascending, string filter = "");
+            string orderBy = "path", Direction orderDirection = Direction.Ascending, string filter = "");
 
         /// <summary>
         /// Gets a collection of <see cref="IMedia"/> objects by Parent Id
@@ -183,7 +200,7 @@ namespace Umbraco.Core.Services
         /// <param name="filter">Search text filter</param>
         /// <returns>An Enumerable list of <see cref="IContent"/> objects</returns>
         IEnumerable<IMedia> GetPagedDescendants(int id, long pageIndex, int pageSize, out long totalRecords,
-            string orderBy = "Path", Direction orderDirection = Direction.Ascending, string filter = "");
+            string orderBy = "path", Direction orderDirection = Direction.Ascending, string filter = "");
 
         /// <summary>
         /// Gets a collection of <see cref="IMedia"/> objects by Parent Id

src/Umbraco.Core/Services/IMemberService.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.ComponentModel;
+using System.Xml.Linq;
 using Umbraco.Core.Models;
 using Umbraco.Core.Models.Membership;
 using Umbraco.Core.Persistence.DatabaseModelDefinitions;
@@ -13,6 +14,15 @@ namespace Umbraco.Core.Services
     /// </summary>
     public interface IMemberService : IMembershipMemberService
     {
+        /// <summary>
+        /// Gets all XML entries found in the cmsContentXml table
+        /// </summary>
+        /// <param name="pageIndex">Page number</param>
+        /// <param name="pageSize">Page size</param>
+        /// <param name="totalRecords">Total records the query would return without paging</param>
+        /// <returns>A paged enumerable of XML entries of content items</returns>        
+        IEnumerable<XElement> GetPagedXmlEntries(long pageIndex, int pageSize, out long totalRecords);
+
         /// <summary>
         /// Rebuilds all xml content in the cmsContentXml table for all documents
         /// </summary>

src/Umbraco.Core/Services/MacroService.cs

@@ -142,19 +142,24 @@ namespace Umbraco.Core.Services
         /// <param name="userId">Optional Id of the user deleting the macro</param>
         public void Save(IMacro macro, int userId = 0)
         {
-	        if (Saving.IsRaisedEventCancelled(new SaveEventArgs<IMacro>(macro), this)) 
-				return;
-	        
-			var uow = UowProvider.GetUnitOfWork();
-	        using (var repository = RepositoryFactory.CreateMacroRepository(uow))
-	        {
-		        repository.AddOrUpdate(macro);
-		        uow.Commit();
+            if (Saving.IsRaisedEventCancelled(new SaveEventArgs<IMacro>(macro), this))
+                return;
 
-		        Saved.RaiseEvent(new SaveEventArgs<IMacro>(macro, false), this);
-	        }
+            if (string.IsNullOrWhiteSpace(macro.Name))
+            {
+                throw new ArgumentException("Cannot save macro with empty name.");
+            }
 
-	        Audit(AuditType.Save, "Save Macro performed by user", userId, -1);
+            var uow = UowProvider.GetUnitOfWork();
+            using (var repository = RepositoryFactory.CreateMacroRepository(uow))
+            {
+                repository.AddOrUpdate(macro);
+                uow.Commit();
+
+                Saved.RaiseEvent(new SaveEventArgs<IMacro>(macro, false), this);
+            }
+
+            Audit(AuditType.Save, "Save Macro performed by user", userId, -1);
         }
 
         ///// <summary>

src/Umbraco.Core/Services/MediaService.cs

@@ -2,11 +2,11 @@ using System;
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Globalization;
+using System.IO;
 using System.Linq;
 using System.Text.RegularExpressions;
 using System.Threading;
 using System.Xml.Linq;
-using Umbraco.Core.Auditing;
 using Umbraco.Core.Configuration;
 using Umbraco.Core.Events;
 using Umbraco.Core.Logging;
@@ -16,9 +16,7 @@ using Umbraco.Core.Persistence;
 using Umbraco.Core.Persistence.DatabaseModelDefinitions;
 using Umbraco.Core.Persistence.Querying;
 using Umbraco.Core.Persistence.Repositories;
-using Umbraco.Core.Persistence.SqlSyntax;
 using Umbraco.Core.Persistence.UnitOfWork;
-using Umbraco.Core.Publishing;
 
 namespace Umbraco.Core.Services
 {
@@ -247,6 +245,29 @@ namespace Umbraco.Core.Services
             }
         }
 
+        public int CountNotTrashed(string contentTypeAlias = null)
+        {
+            var uow = UowProvider.GetUnitOfWork();
+            using (var repository = RepositoryFactory.CreateMediaRepository(uow))
+            using (var mediaTypeRepository = RepositoryFactory.CreateMediaTypeRepository(uow))
+            {
+                var mediaTypeId = 0;
+                if (contentTypeAlias.IsNullOrWhiteSpace() == false)
+                {
+                    var mediaType = mediaTypeRepository.Get(contentTypeAlias);
+                    if (mediaType == null) return 0;
+                    mediaTypeId = mediaType.Id;
+                }
+
+                var query = Query<IMedia>.Builder.Where(media => media.Trashed == false);
+                if (mediaTypeId > 0)
+                {
+                    query.Where(media => media.ContentTypeId == mediaTypeId);
+                }
+                return repository.Count(query);
+            }
+        }
+
         public int Count(string contentTypeAlias = null)
         {
             var uow = UowProvider.GetUnitOfWork();
@@ -434,6 +455,25 @@ namespace Umbraco.Core.Services
         /// <returns>An Enumerable list of <see cref="IContent"/> objects</returns>
         public IEnumerable<IMedia> GetPagedChildren(int id, long pageIndex, int pageSize, out long totalChildren,
             string orderBy, Direction orderDirection, bool orderBySystemField, string filter)
+        {
+            return GetPagedChildren(id, pageIndex, pageSize, out totalChildren, orderBy, orderDirection, true, filter, null);
+        }
+
+        /// <summary>
+        /// Gets a collection of <see cref="IMedia"/> objects by Parent Id
+        /// </summary>
+        /// <param name="id">Id of the Parent to retrieve Children from</param>
+        /// <param name="pageIndex">Page number</param>
+        /// <param name="pageSize">Page size</param>
+        /// <param name="totalChildren">Total records query would return without paging</param>
+        /// <param name="orderBy">Field to order by</param>
+        /// <param name="orderDirection">Direction to order by</param>
+        /// <param name="orderBySystemField">Flag to indicate when ordering by system field</param>
+        /// <param name="filter">Search text filter</param>
+        /// <param name="contentTypeFilter">A list of content type Ids to filter the list by</param>
+        /// <returns>An Enumerable list of <see cref="IContent"/> objects</returns>
+        public IEnumerable<IMedia> GetPagedChildren(int id, long pageIndex, int pageSize, out long totalChildren,
+            string orderBy, Direction orderDirection, bool orderBySystemField, string filter, int[] contentTypeFilter)
         {
             Mandate.ParameterCondition(pageIndex >= 0, "pageIndex");
             Mandate.ParameterCondition(pageSize > 0, "pageSize");
@@ -442,6 +482,11 @@ namespace Umbraco.Core.Services
                 var query = Query<IMedia>.Builder;
                 query.Where(x => x.ParentId == id);
 
+                if (contentTypeFilter != null && contentTypeFilter.Length > 0)
+                {
+                    query.Where(x => contentTypeFilter.Contains(x.ContentTypeId));
+                }
+
                 var medias = repository.GetPagedResultsByQuery(query, pageIndex, pageSize, out totalChildren, orderBy, orderDirection, orderBySystemField, filter);
 
                 return medias;
@@ -450,7 +495,7 @@ namespace Umbraco.Core.Services
 
         [Obsolete("Use the overload with 'long' parameter types instead")]
         [EditorBrowsable(EditorBrowsableState.Never)]
-        public IEnumerable<IMedia> GetPagedDescendants(int id, int pageIndex, int pageSize, out int totalChildren, string orderBy = "Path", Direction orderDirection = Direction.Ascending, string filter = "")
+        public IEnumerable<IMedia> GetPagedDescendants(int id, int pageIndex, int pageSize, out int totalChildren, string orderBy = "path", Direction orderDirection = Direction.Ascending, string filter = "")
         {
             long total;
             var result = GetPagedDescendants(id, Convert.ToInt64(pageIndex), pageSize, out total, orderBy, orderDirection, true, filter);
@@ -469,7 +514,7 @@ namespace Umbraco.Core.Services
         /// <param name="orderDirection">Direction to order by</param>
         /// <param name="filter">Search text filter</param>
         /// <returns>An Enumerable list of <see cref="IContent"/> objects</returns>
-        public IEnumerable<IMedia> GetPagedDescendants(int id, long pageIndex, int pageSize, out long totalChildren, string orderBy = "Path", Direction orderDirection = Direction.Ascending, string filter = "")
+        public IEnumerable<IMedia> GetPagedDescendants(int id, long pageIndex, int pageSize, out long totalChildren, string orderBy = "path", Direction orderDirection = Direction.Ascending, string filter = "")
         {
             return GetPagedDescendants(id, pageIndex, pageSize, out totalChildren, orderBy, orderDirection, true, filter);
         }
@@ -527,6 +572,10 @@ namespace Umbraco.Core.Services
         /// <returns>An Enumerable flat list of <see cref="IMedia"/> objects</returns>
         public IEnumerable<IMedia> GetDescendants(IMedia media)
         {
+            //This is a check to ensure that the path is correct for this entity to avoid problems like: http://issues.umbraco.org/issue/U4-9336 due to data corruption
+            if (media.ValidatePath() == false)
+                throw new InvalidDataException(string.Format("The content item {0} has an invalid path: {1} with parentID: {2}", media.Id, media.Path, media.ParentId));
+
             var uow = UowProvider.GetUnitOfWork();
             using (var repository = RepositoryFactory.CreateMediaRepository(uow))
             {
@@ -619,7 +668,7 @@ namespace Umbraco.Core.Services
         public IMedia GetMediaByPath(string mediaPath)
         {
             var umbracoFileValue = mediaPath;
-            
+
             const string Pattern = ".*[_][0-9]+[x][0-9]+[.].*";
             var isResized = Regex.IsMatch(mediaPath, Pattern);
 
@@ -832,7 +881,11 @@ namespace Umbraco.Core.Services
                 {
                     return OperationStatus.Cancelled(evtMsgs);
                 }
+            }
 
+            if (string.IsNullOrWhiteSpace(media.Name))
+            {
+                throw new ArgumentException("Cannot save media with empty name.");
             }
 
             var uow = UowProvider.GetUnitOfWork();
@@ -998,56 +1051,63 @@ namespace Umbraco.Core.Services
         {
             if (media == null) throw new ArgumentNullException("media");
 
-            var originalPath = media.Path;
-
             var evtMsgs = EventMessagesFactory.Get();
 
-            if (Trashing.IsRaisedEventCancelled(
-                new MoveEventArgs<IMedia>(new MoveEventInfo<IMedia>(media, originalPath, Constants.System.RecycleBinMedia)), this))
+            using (new WriteLock(Locker))
             {
-                return OperationStatus.Cancelled(evtMsgs);
-            }
+                //Hack: this ensures that the entity's path is valid and if not it fixes/persists it
+                //see: http://issues.umbraco.org/issue/U4-9336
+                media.EnsureValidPath(Logger, entity => GetById(entity.ParentId), QuickUpdate);
 
-            var moveInfo = new List<MoveEventInfo<IMedia>>
-            {
-                new MoveEventInfo<IMedia>(media, originalPath, Constants.System.RecycleBinMedia)
-            };
+                var originalPath = media.Path;
 
-            //Find Descendants, which will be moved to the recycle bin along with the parent/grandparent.
-            var descendants = GetDescendants(media).OrderBy(x => x.Level).ToList();
-
-            var uow = UowProvider.GetUnitOfWork();
-            using (var repository = RepositoryFactory.CreateMediaRepository(uow))
-            {
-                //TODO: This should be part of the repo!
-
-                //Remove 'published' xml from the cmsContentXml table for the unpublished media
-                uow.Database.Delete<ContentXmlDto>("WHERE nodeId = @Id", new { Id = media.Id });
-
-                media.ChangeTrashedState(true, Constants.System.RecycleBinMedia);
-                repository.AddOrUpdate(media);
-
-                //Loop through descendants to update their trash state, but ensuring structure by keeping the ParentId
-                foreach (var descendant in descendants)
+                if (Trashing.IsRaisedEventCancelled(
+                    new MoveEventArgs<IMedia>(new MoveEventInfo<IMedia>(media, originalPath, Constants.System.RecycleBinMedia)), this))
                 {
-                    //Remove 'published' xml from the cmsContentXml table for the unpublished media
-                    uow.Database.Delete<ContentXmlDto>("WHERE nodeId = @Id", new { Id = descendant.Id });
-
-                    descendant.ChangeTrashedState(true, descendant.ParentId);
-                    repository.AddOrUpdate(descendant);
-
-                    moveInfo.Add(new MoveEventInfo<IMedia>(descendant, descendant.Path, descendant.ParentId));
+                    return OperationStatus.Cancelled(evtMsgs);
                 }
 
-                uow.Commit();
+                var moveInfo = new List<MoveEventInfo<IMedia>>
+                {
+                    new MoveEventInfo<IMedia>(media, originalPath, Constants.System.RecycleBinMedia)
+                };
+
+                //Find Descendants, which will be moved to the recycle bin along with the parent/grandparent.
+                var descendants = GetDescendants(media).OrderBy(x => x.Level).ToList();
+
+                var uow = UowProvider.GetUnitOfWork();
+                using (var repository = RepositoryFactory.CreateMediaRepository(uow))
+                {
+                    //TODO: This should be part of the repo!
+
+                    //Remove 'published' xml from the cmsContentXml table for the unpublished media
+                    uow.Database.Delete<ContentXmlDto>("WHERE nodeId = @Id", new { Id = media.Id });
+
+                    media.ChangeTrashedState(true, Constants.System.RecycleBinMedia);
+                    repository.AddOrUpdate(media);
+
+                    //Loop through descendants to update their trash state, but ensuring structure by keeping the ParentId
+                    foreach (var descendant in descendants)
+                    {
+                        //Remove 'published' xml from the cmsContentXml table for the unpublished media
+                        uow.Database.Delete<ContentXmlDto>("WHERE nodeId = @Id", new { Id = descendant.Id });
+
+                        descendant.ChangeTrashedState(true, descendant.ParentId);
+                        repository.AddOrUpdate(descendant);
+
+                        moveInfo.Add(new MoveEventInfo<IMedia>(descendant, descendant.Path, descendant.ParentId));
+                    }
+
+                    uow.Commit();
+                }
+
+                Trashed.RaiseEvent(
+                    new MoveEventArgs<IMedia>(false, evtMsgs, moveInfo.ToArray()), this);
+
+                Audit(AuditType.Move, "Move Media to Recycle Bin performed by user", userId, media.Id);
+
+                return OperationStatus.Success(evtMsgs);
             }
-
-            Trashed.RaiseEvent(
-                new MoveEventArgs<IMedia>(false, evtMsgs, moveInfo.ToArray()), this);
-
-            Audit(AuditType.Move, "Move Media to Recycle Bin performed by user", userId, media.Id);
-
-            return OperationStatus.Success(evtMsgs);
         }
 
         /// <summary>
@@ -1064,8 +1124,6 @@ namespace Umbraco.Core.Services
             ((IMediaServiceOperations)this).Delete(media, userId);
         }
 
-
-
         /// <summary>
         /// Permanently deletes versions from an <see cref="IMedia"/> object prior to a specific date.
         /// This method will never delete the latest version of a content item.
@@ -1154,7 +1212,6 @@ namespace Umbraco.Core.Services
         public bool Sort(IEnumerable<IMedia> items, int userId = 0, bool raiseEvents = true)
         {
             var asArray = items.ToArray();
-
             if (raiseEvents)
             {
                 if (Saving.IsRaisedEventCancelled(new SaveEventArgs<IMedia>(asArray), this))
@@ -1215,7 +1272,7 @@ namespace Umbraco.Core.Services
             var uow = UowProvider.GetUnitOfWork();
             using (var repository = RepositoryFactory.CreateMediaRepository(uow))
             {
-                var contents = repository.GetPagedXmlEntriesByPath(path, pageIndex, pageSize, out totalRecords);
+                var contents = repository.GetPagedXmlEntriesByPath(path, pageIndex, pageSize, null, out totalRecords);
                 return contents;
             }
         }
@@ -1316,6 +1373,23 @@ namespace Umbraco.Core.Services
             }
         }
 
+        /// <summary>
+        /// Hack: This is used to fix some data if an entity's properties are invalid/corrupt
+        /// </summary>
+        /// <param name="media"></param>
+        private void QuickUpdate(IMedia media)
+        {
+            if (media == null) throw new ArgumentNullException("media");
+            if (media.HasIdentity == false) throw new InvalidOperationException("Cannot update an entity without an Identity");
+
+            var uow = UowProvider.GetUnitOfWork();
+            using (var repository = RepositoryFactory.CreateMediaRepository(uow))
+            {
+                repository.AddOrUpdate(media);
+                uow.Commit();
+            }
+        }
+
         #region Event Handlers
 
         /// <summary>

src/Umbraco.Core/Services/MemberService.cs

@@ -612,6 +612,26 @@ namespace Umbraco.Core.Services
             Audit(AuditType.Publish, "MemberService.RebuildXmlStructures completed, the xml has been regenerated in the database", 0, -1);
         }
 
+        /// <summary>
+        /// Gets paged member descendants as XML by path
+        /// </summary>
+        /// <param name="pageIndex">Page number</param>
+        /// <param name="pageSize">Page size</param>
+        /// <param name="totalRecords">Total records the query would return without paging</param>
+        /// <returns>A paged enumerable of XML entries of member items</returns>
+        public IEnumerable<XElement> GetPagedXmlEntries(long pageIndex, int pageSize, out long totalRecords)
+        {
+            Mandate.ParameterCondition(pageIndex >= 0, "pageIndex");
+            Mandate.ParameterCondition(pageSize > 0, "pageSize");
+
+            var uow = UowProvider.GetUnitOfWork();
+            using (var repository = RepositoryFactory.CreateMemberRepository(uow))
+            {
+                var contents = repository.GetPagedXmlEntriesByPath("-1", pageIndex, pageSize, null, out totalRecords);
+                return contents;
+            }
+        }
+
         #endregion
 
         #region IMembershipMemberService Implementation
@@ -978,6 +998,11 @@ namespace Umbraco.Core.Services
                 }
             }
 
+            if (string.IsNullOrWhiteSpace(entity.Name))
+            {
+                throw new ArgumentException("Cannot save member with empty name.");
+            }
+
             var uow = UowProvider.GetUnitOfWork();
             using (var repository = RepositoryFactory.CreateMemberRepository(uow))
             {

src/Umbraco.Core/Services/MemberTypeService.cs

@@ -78,6 +78,11 @@ namespace Umbraco.Core.Services
             if (Saving.IsRaisedEventCancelled(new SaveEventArgs<IMemberType>(memberType), this))
                 return;
 
+            if (string.IsNullOrWhiteSpace(memberType.Name))
+            {
+                throw new ArgumentException("Cannot save MemberType with empty name.");
+            }
+
             using (new WriteLock(Locker))
             {
                 var uow = UowProvider.GetUnitOfWork();

src/Umbraco.Core/Services/UserService.cs

@@ -125,6 +125,11 @@ namespace Umbraco.Core.Services
         {
             if (userType == null) throw new ArgumentNullException("userType");
 
+            if (string.IsNullOrWhiteSpace(username))
+            {
+                throw new ArgumentException("Cannot create user with empty username.");
+            }
+
             //TODO: PUT lock here!!
 
             var uow = UowProvider.GetUnitOfWork();
@@ -312,6 +317,15 @@ namespace Umbraco.Core.Services
                     return;
             }
 
+            if (string.IsNullOrWhiteSpace(entity.Username))
+            {
+                throw new ArgumentException("Cannot save user with empty username.");
+            }
+            if (string.IsNullOrWhiteSpace(entity.Name))
+            {
+                throw new ArgumentException("Cannot save user with empty name.");
+            }
+
             var uow = UowProvider.GetUnitOfWork();
             using (var repository = RepositoryFactory.CreateUserRepository(uow))
             {
@@ -353,6 +367,14 @@ namespace Umbraco.Core.Services
             {
                 foreach (var member in entities)
                 {
+                    if (string.IsNullOrWhiteSpace(member.Username))
+                    {
+                        throw new ArgumentException("Cannot save user with empty username.");
+                    }
+                    if (string.IsNullOrWhiteSpace(member.Name))
+                    {
+                        throw new ArgumentException("Cannot save user with empty name.");
+                    }
                     repository.AddOrUpdate(member);
                 }
                 //commit the whole lot in one go

src/Umbraco.Core/Umbraco.Core.csproj

@@ -21,7 +21,7 @@
     <DebugType>full</DebugType>
     <Optimize>false</Optimize>
     <OutputPath>bin\Debug\</OutputPath>
-    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <DefineConstants>TRACE;DEBUG</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <Prefer32Bit>false</Prefer32Bit>
@@ -39,67 +39,55 @@
   <ItemGroup>
     <Reference Include="AutoMapper, Version=3.3.1.0, Culture=neutral, PublicKeyToken=be96cd2c38ef1005, processorArchitecture=MSIL">
       <HintPath>..\packages\AutoMapper.3.3.1\lib\net40\AutoMapper.dll</HintPath>
-      <Private>True</Private>
     </Reference>
     <Reference Include="AutoMapper.Net4, Version=3.3.1.0, Culture=neutral, PublicKeyToken=be96cd2c38ef1005, processorArchitecture=MSIL">
       <HintPath>..\packages\AutoMapper.3.3.1\lib\net40\AutoMapper.Net4.dll</HintPath>
-      <Private>True</Private>
     </Reference>
     <Reference Include="HtmlAgilityPack, Version=1.4.9.0, Culture=neutral, PublicKeyToken=bd319b19eaf3b43a, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
       <HintPath>..\packages\HtmlAgilityPack.1.4.9\lib\Net45\HtmlAgilityPack.dll</HintPath>
     </Reference>
-    <Reference Include="ICSharpCode.SharpZipLib">
+    <Reference Include="ICSharpCode.SharpZipLib, Version=0.86.0.518, Culture=neutral, PublicKeyToken=1b03e6acf1164f73, processorArchitecture=MSIL">
       <HintPath>..\packages\SharpZipLib.0.86.0\lib\20\ICSharpCode.SharpZipLib.dll</HintPath>
     </Reference>
-    <Reference Include="ImageProcessor, Version=2.4.5.0, Culture=neutral, processorArchitecture=MSIL">
-      <HintPath>..\packages\ImageProcessor.2.4.5.0\lib\net45\ImageProcessor.dll</HintPath>
+    <Reference Include="ImageProcessor, Version=2.5.2.0, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>..\packages\ImageProcessor.2.5.2\lib\net45\ImageProcessor.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="log4net, Version=1.2.11.0, Culture=neutral, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
       <HintPath>..\packages\log4net-mediumtrust.2.0.0\lib\log4net.dll</HintPath>
     </Reference>
     <Reference Include="Microsoft.AspNet.Identity.Core, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
       <HintPath>..\packages\Microsoft.AspNet.Identity.Core.2.2.1\lib\net45\Microsoft.AspNet.Identity.Core.dll</HintPath>
     </Reference>
     <Reference Include="Microsoft.AspNet.Identity.Owin, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
       <HintPath>..\packages\Microsoft.AspNet.Identity.Owin.2.2.1\lib\net45\Microsoft.AspNet.Identity.Owin.dll</HintPath>
     </Reference>
     <Reference Include="Microsoft.Owin, Version=3.0.1.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
       <HintPath>..\packages\Microsoft.Owin.3.0.1\lib\net45\Microsoft.Owin.dll</HintPath>
     </Reference>
-    <Reference Include="Microsoft.Owin.Security">
+    <Reference Include="Microsoft.Owin.Security, Version=3.0.1.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <HintPath>..\packages\Microsoft.Owin.Security.3.0.1\lib\net45\Microsoft.Owin.Security.dll</HintPath>
-      <Private>True</Private>
     </Reference>
     <Reference Include="Microsoft.Owin.Security.Cookies, Version=3.0.1.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
       <HintPath>..\packages\Microsoft.Owin.Security.Cookies.3.0.1\lib\net45\Microsoft.Owin.Security.Cookies.dll</HintPath>
     </Reference>
     <Reference Include="Microsoft.Owin.Security.OAuth, Version=3.0.1.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
       <HintPath>..\packages\Microsoft.Owin.Security.OAuth.3.0.1\lib\net45\Microsoft.Owin.Security.OAuth.dll</HintPath>
     </Reference>
     <Reference Include="MiniProfiler, Version=2.1.0.0, Culture=neutral, PublicKeyToken=b44f9351044011a3, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
       <HintPath>..\packages\MiniProfiler.2.1.0\lib\net40\MiniProfiler.dll</HintPath>
     </Reference>
-    <Reference Include="MySql.Data">
-      <SpecificVersion>False</SpecificVersion>
+    <Reference Include="MySql.Data, Version=6.9.8.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d, processorArchitecture=MSIL">
       <HintPath>..\packages\MySql.Data.6.9.8\lib\net45\MySql.Data.dll</HintPath>
     </Reference>
     <Reference Include="Newtonsoft.Json, Version=6.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
       <HintPath>..\packages\Newtonsoft.Json.6.0.8\lib\net45\Newtonsoft.Json.dll</HintPath>
       <Private>True</Private>
     </Reference>
-    <Reference Include="Owin">
+    <Reference Include="Owin, Version=1.0.0.0, Culture=neutral, PublicKeyToken=f0ebd12fd5e55cc5, processorArchitecture=MSIL">
       <HintPath>..\packages\Owin.1.0\lib\net40\Owin.dll</HintPath>
     </Reference>
-    <Reference Include="Semver">
+    <Reference Include="Semver, Version=1.1.2.0, Culture=neutral, processorArchitecture=MSIL">
       <HintPath>..\packages\semver.1.1.2\lib\net45\Semver.dll</HintPath>
     </Reference>
     <Reference Include="System" />
@@ -107,11 +95,9 @@
     <Reference Include="System.Configuration" />
     <Reference Include="System.Data.Entity" />
     <Reference Include="System.Data.SqlServerCe, Version=4.0.0.1, Culture=neutral, PublicKeyToken=89845dcd8080cc91, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
       <HintPath>..\packages\SqlServerCE.4.0.0.1\lib\System.Data.SqlServerCe.dll</HintPath>
     </Reference>
     <Reference Include="System.Data.SqlServerCe.Entity, Version=4.0.0.1, Culture=neutral, PublicKeyToken=89845dcd8080cc91, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
       <HintPath>..\packages\SqlServerCE.4.0.0.1\lib\System.Data.SqlServerCe.Entity.dll</HintPath>
     </Reference>
     <Reference Include="System.DirectoryServices.AccountManagement" />
@@ -193,6 +179,7 @@
     <Compile Include="Configuration\BaseRest\ExtensionElement.cs" />
     <Compile Include="Configuration\BaseRest\ExtensionElementCollection.cs" />
     <Compile Include="Configuration\BaseRest\MethodElement.cs" />
+    <Compile Include="Configuration\ContentXmlStorage.cs" />
     <Compile Include="Configuration\Dashboard\AccessElement.cs" />
     <Compile Include="Configuration\Dashboard\AccessItem.cs" />
     <Compile Include="Configuration\Dashboard\AccessType.cs" />
@@ -296,6 +283,7 @@
     <Compile Include="Configuration\UmbracoSettings\ServerCollection.cs" />
     <Compile Include="Configuration\UmbracoSettings\ServerElement.cs" />
     <Compile Include="Configuration\UmbracoSettings\TemplatesElement.cs" />
+    <Compile Include="Configuration\UmbracoSettings\UmbracoConfigurationElement.cs" />
     <Compile Include="Configuration\UmbracoSettings\UmbracoSettingsSection.cs" />
     <Compile Include="Configuration\UmbracoSettings\UrlReplacingElement.cs" />
     <Compile Include="Configuration\UmbracoSettings\UserProviderElement.cs" />
@@ -477,9 +465,11 @@
     <Compile Include="Persistence\Migrations\Upgrades\TargetVersionSevenThreeOne\UpdateUserLanguagesToIsoCode.cs" />
     <Compile Include="Persistence\PocoDataDataReader.cs" />
     <Compile Include="Persistence\Querying\QueryExtensions.cs" />
+    <Compile Include="Persistence\Querying\SqlExpressionExtensions.cs" />
     <Compile Include="Persistence\RecordPersistenceType.cs" />
     <Compile Include="Persistence\Relators\AccessRulesRelator.cs" />
     <Compile Include="Persistence\Repositories\AuditRepository.cs" />
+    <Compile Include="Persistence\Repositories\BaseQueryType.cs" />
     <Compile Include="Persistence\Repositories\EntityContainerRepository.cs" />
     <Compile Include="Persistence\Repositories\DomainRepository.cs" />
     <Compile Include="Persistence\Repositories\ExternalLoginRepository.cs" />
@@ -661,7 +651,6 @@
     <Compile Include="PropertyEditors\DefaultPropertyValueConverterAttribute.cs" />
     <Compile Include="Persistence\Migrations\Upgrades\TargetVersionSeven\UpdateRelatedLinksData.cs" />
     <Compile Include="PropertyEditors\IValueEditor.cs" />
-    <Compile Include="Persistence\Querying\SqlStringExtensions.cs" />
     <Compile Include="Persistence\Querying\StringPropertyMatchType.cs" />
     <Compile Include="Persistence\Querying\TextColumnType.cs" />
     <Compile Include="Persistence\Querying\ValuePropertyMatchType.cs" />
@@ -1440,9 +1429,7 @@
   <ItemGroup>
     <None Include="app.config" />
     <None Include="FileResources\BlockingWeb.config" />
-    <None Include="packages.config">
-      <SubType>Designer</SubType>
-    </None>
+    <None Include="packages.config" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\umbraco.interfaces\umbraco.interfaces.csproj">

src/Umbraco.Core/XmlExtensions.cs

@@ -16,32 +16,6 @@ namespace Umbraco.Core
 	/// </summary>
 	internal static class XmlExtensions
 	{
-        /// <summary>
-        /// Saves the xml document async
-        /// </summary>
-        /// <param name="xdoc"></param>
-        /// <param name="filename"></param>
-        /// <returns></returns>
-	    public static async Task SaveAsync(this XmlDocument xdoc, string filename)
-	    {
-            if (xdoc.DocumentElement == null)
-                throw new XmlException("Cannot save xml document, there is no root element");
-
-            using (var fs = new FileStream(filename, FileMode.Create, FileAccess.Write, FileShare.Read, bufferSize: 4096, useAsync: true))
-            using (var xmlWriter = XmlWriter.Create(fs, new XmlWriterSettings
-            {
-                Async = true,
-                Encoding = Encoding.UTF8,
-                Indent = true
-            }))
-            {
-                //NOTE: There are no nice methods to write it async, only flushing it async. We
-                // could implement this ourselves but it'd be a very manual process.
-                xdoc.WriteTo(xmlWriter);
-                await xmlWriter.FlushAsync().ConfigureAwait(false);
-            }
-	    }
-
         public static bool HasAttribute(this XmlAttributeCollection attributes, string attributeName)
         {
             return attributes.Cast<XmlAttribute>().Any(x => x.Name == attributeName);

src/Umbraco.Core/packages.config

@@ -2,8 +2,8 @@
 <packages>
   <package id="AutoMapper" version="3.3.1" targetFramework="net45" />
   <package id="HtmlAgilityPack" version="1.4.9" targetFramework="net45" />
-  <package id="ImageProcessor" version="2.4.5.0" targetFramework="net45" />
-  <package id="log4net-mediumtrust" version="2.0.0" targetFramework="net4" />
+  <package id="ImageProcessor" version="2.5.2" targetFramework="net45" />
+  <package id="log4net-mediumtrust" version="2.0.0" targetFramework="net45" />
   <package id="Microsoft.AspNet.Identity.Core" version="2.2.1" targetFramework="net45" />
   <package id="Microsoft.AspNet.Identity.Owin" version="2.2.1" targetFramework="net45" />
   <package id="Microsoft.Owin" version="3.0.1" targetFramework="net45" />
@@ -15,6 +15,6 @@
   <package id="Newtonsoft.Json" version="6.0.8" targetFramework="net45" />
   <package id="Owin" version="1.0" targetFramework="net45" />
   <package id="semver" version="1.1.2" targetFramework="net45" />
-  <package id="SharpZipLib" version="0.86.0" targetFramework="net4" />
+  <package id="SharpZipLib" version="0.86.0" targetFramework="net45" />
   <package id="SqlServerCE" version="4.0.0.1" targetFramework="net45" />
 </packages>

src/Umbraco.Tests.Benchmarks/LinqCastBenchmarks.cs

@@ -0,0 +1,58 @@
+using System.Collections.Generic;
+using System.Linq;
+using BenchmarkDotNet.Attributes;
+using BenchmarkDotNet.Configs;
+using BenchmarkDotNet.Diagnostics.Windows;
+
+namespace Umbraco.Tests.Benchmarks
+{
+    /// <summary>
+    /// Want to check what is faster OfType or Cast when a enurable all has the same items
+    /// </summary>
+    [Config(typeof(Config))]
+    public class LinqCastBenchmarks
+    {
+        private class Config : ManualConfig
+        {
+            public Config()
+            {
+                Add(new MemoryDiagnoser());
+            }
+        }
+
+        public LinqCastBenchmarks()
+        {
+            _array = new List<object>();
+            _array.AddRange(Enumerable.Range(0, 10000).Select(x => x.ToString()));
+        }
+
+        private readonly List<object> _array;
+
+        [Benchmark(Baseline = true)]
+        public void OfType()
+        {
+            foreach (var i in _array.OfType<string>())
+            {
+                var a = i;
+            }
+        }
+
+        [Benchmark()]
+        public void Cast()
+        {
+            foreach (var i in _array.Cast<string>())
+            {
+                var a = i;
+            }
+        }
+
+        [Benchmark()]
+        public void ExplicitCast()
+        {
+            foreach (var i in _array)
+            {
+                var a = (string)i;
+            }
+        }
+    }
+}

src/Umbraco.Tests.Benchmarks/ModelToSqlExpressionHelperBenchmarks.cs

@@ -16,6 +16,7 @@ using BenchmarkDotNet.Loggers;
 using BenchmarkDotNet.Reports;
 using BenchmarkDotNet.Running;
 using BenchmarkDotNet.Validators;
+using Moq;
 using Umbraco.Core;
 using Umbraco.Core.Logging;
 using Umbraco.Core.Models;
@@ -43,15 +44,18 @@ namespace Umbraco.Tests.Benchmarks
 
         public ModelToSqlExpressionHelperBenchmarks()
         {
-            _contentMapper = new ContentMapper(_syntaxProvider);
-            _contentMapper.BuildMap();
+            var contentMapper = new ContentMapper(_syntaxProvider);
+            contentMapper.BuildMap();
             _cachedExpression = new CachedExpression();
+            var mappingResolver = new Mock<MappingResolver>();
+            mappingResolver.Setup(resolver => resolver.ResolveMapperByType(It.IsAny<Type>())).Returns(contentMapper);
+            _mappingResolver = mappingResolver.Object;
         }
         
         private readonly ISqlSyntaxProvider _syntaxProvider = new SqlCeSyntaxProvider();
-        private readonly BaseMapper _contentMapper;
         private readonly CachedExpression _cachedExpression;
-        
+        private readonly MappingResolver _mappingResolver;
+
         [Benchmark(Baseline = true)]
         public void WithNonCached()
         {
@@ -62,7 +66,7 @@ namespace Umbraco.Tests.Benchmarks
                 Expression<Func<IContent, bool>> predicate = content =>
                 content.Path.StartsWith("-1") && content.Published && (content.ContentTypeId == a || content.ContentTypeId == b);
 
-                var modelToSqlExpressionHelper = new ModelToSqlExpressionVisitor<IContent>(_syntaxProvider, _contentMapper);
+                var modelToSqlExpressionHelper = new ModelToSqlExpressionVisitor<IContent>(_syntaxProvider, _mappingResolver);
                 var result = modelToSqlExpressionHelper.Visit(predicate);
             }
             
@@ -80,7 +84,7 @@ namespace Umbraco.Tests.Benchmarks
                 Expression<Func<IContent, bool>> predicate = content =>
                 content.Path.StartsWith("-1") && content.Published && (content.ContentTypeId == a || content.ContentTypeId == b);
                 
-                var modelToSqlExpressionHelper = new ModelToSqlExpressionVisitor<IContent>(_syntaxProvider, _contentMapper);
+                var modelToSqlExpressionHelper = new ModelToSqlExpressionVisitor<IContent>(_syntaxProvider, _mappingResolver);
 
                 //wrap it!
                 _cachedExpression.Wrap(predicate);

src/Umbraco.Tests.Benchmarks/Program.cs

@@ -8,23 +8,17 @@ namespace Umbraco.Tests.Benchmarks
     {
         public static void Main(string[] args)
         {
-            if (args.Length == 1)
+            var switcher = new BenchmarkSwitcher(new[]
             {
-                var type = Assembly.GetExecutingAssembly().GetType("Umbraco.Tests.Benchmarks." +args[0]);
-                if (type == null)
-                {
-                    Console.WriteLine("Unknown benchmark.");
-                }
-                else
-                {
-                    var summary = BenchmarkRunner.Run(type);
-                    Console.ReadLine();
-                }
-            }
-            else
-            {
-                Console.WriteLine("?");
-            }
+                typeof(BulkInsertBenchmarks),
+                typeof(ModelToSqlExpressionHelperBenchmarks),
+                typeof(XmlBenchmarks),
+                typeof(LinqCastBenchmarks),
+                //typeof(DeepCloneBenchmarks),
+                typeof(XmlPublishedContentInitBenchmarks),
+
+            });
+            switcher.Run(args);            
         }
     }
 }

src/Umbraco.Tests.Benchmarks/Umbraco.Tests.Benchmarks.csproj

@@ -39,31 +39,30 @@
   <ItemGroup>
     <Reference Include="BenchmarkDotNet, Version=0.9.9.0, Culture=neutral, PublicKeyToken=aa0ca2f9092cefc4, processorArchitecture=MSIL">
       <HintPath>..\packages\BenchmarkDotNet.0.9.9\lib\net45\BenchmarkDotNet.dll</HintPath>
-      <Private>True</Private>
     </Reference>
     <Reference Include="BenchmarkDotNet.Core, Version=0.9.9.0, Culture=neutral, PublicKeyToken=aa0ca2f9092cefc4, processorArchitecture=MSIL">
       <HintPath>..\packages\BenchmarkDotNet.Core.0.9.9\lib\net45\BenchmarkDotNet.Core.dll</HintPath>
-      <Private>True</Private>
     </Reference>
     <Reference Include="BenchmarkDotNet.Diagnostics.Windows, Version=0.9.9.0, Culture=neutral, PublicKeyToken=aa0ca2f9092cefc4, processorArchitecture=MSIL">
       <HintPath>..\packages\BenchmarkDotNet.Diagnostics.Windows.0.9.9\lib\net45\BenchmarkDotNet.Diagnostics.Windows.dll</HintPath>
-      <Private>True</Private>
     </Reference>
     <Reference Include="BenchmarkDotNet.Toolchains.Roslyn, Version=0.9.9.0, Culture=neutral, PublicKeyToken=aa0ca2f9092cefc4, processorArchitecture=MSIL">
       <HintPath>..\packages\BenchmarkDotNet.Toolchains.Roslyn.0.9.9\lib\net45\BenchmarkDotNet.Toolchains.Roslyn.dll</HintPath>
-      <Private>True</Private>
+    </Reference>
+    <Reference Include="Castle.Core, Version=4.0.0.0, Culture=neutral, PublicKeyToken=407dd0808d44fbdc, processorArchitecture=MSIL">
+      <HintPath>..\packages\Castle.Core.4.0.0\lib\net45\Castle.Core.dll</HintPath>
     </Reference>
     <Reference Include="Microsoft.CodeAnalysis, Version=1.3.1.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <HintPath>..\packages\Microsoft.CodeAnalysis.Common.1.3.2\lib\net45\Microsoft.CodeAnalysis.dll</HintPath>
-      <Private>True</Private>
     </Reference>
     <Reference Include="Microsoft.CodeAnalysis.CSharp, Version=1.3.1.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <HintPath>..\packages\Microsoft.CodeAnalysis.CSharp.1.3.2\lib\net45\Microsoft.CodeAnalysis.CSharp.dll</HintPath>
-      <Private>True</Private>
     </Reference>
     <Reference Include="Microsoft.Diagnostics.Tracing.TraceEvent, Version=1.0.41.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
       <HintPath>..\packages\Microsoft.Diagnostics.Tracing.TraceEvent.1.0.41\lib\net40\Microsoft.Diagnostics.Tracing.TraceEvent.dll</HintPath>
-      <Private>True</Private>
+    </Reference>
+    <Reference Include="Moq, Version=4.7.0.0, Culture=neutral, PublicKeyToken=69f491c39445e920, processorArchitecture=MSIL">
+      <HintPath>..\packages\Moq.4.7.0\lib\net45\Moq.dll</HintPath>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Collections.Immutable, Version=1.1.37.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
@@ -73,20 +72,16 @@
     <Reference Include="System.Core" />
     <Reference Include="System.Data.SqlServerCe, Version=4.0.0.1, Culture=neutral, PublicKeyToken=89845dcd8080cc91, processorArchitecture=MSIL">
       <HintPath>..\packages\SqlServerCE.4.0.0.1\lib\System.Data.SqlServerCe.dll</HintPath>
-      <Private>True</Private>
     </Reference>
     <Reference Include="System.Data.SqlServerCe.Entity, Version=4.0.0.1, Culture=neutral, PublicKeyToken=89845dcd8080cc91, processorArchitecture=MSIL">
       <HintPath>..\packages\SqlServerCE.4.0.0.1\lib\System.Data.SqlServerCe.Entity.dll</HintPath>
-      <Private>True</Private>
     </Reference>
     <Reference Include="System.Management" />
     <Reference Include="System.Reflection.Metadata, Version=1.2.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
       <HintPath>..\packages\System.Reflection.Metadata.1.2.0\lib\portable-net45+win8\System.Reflection.Metadata.dll</HintPath>
-      <Private>True</Private>
     </Reference>
     <Reference Include="System.Threading.Tasks.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
       <HintPath>..\packages\System.Threading.Tasks.Extensions.4.0.0\lib\portable-net45+win8+wp8+wpa81\System.Threading.Tasks.Extensions.dll</HintPath>
-      <Private>True</Private>
     </Reference>
     <Reference Include="System.Xml.Linq" />
     <Reference Include="System.Data.DataSetExtensions" />
@@ -96,20 +91,18 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="LinqCastBenchmarks.cs" />
     <Compile Include="ModelToSqlExpressionHelperBenchmarks.cs" />
     <Compile Include="BulkInsertBenchmarks.cs" />
     <Compile Include="Program.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="XmlBenchmarks.cs" />
+    <Compile Include="XmlPublishedContentInitBenchmarks.cs" />
   </ItemGroup>
   <ItemGroup>
     <None Include="App.config" />
     <None Include="packages.config" />
   </ItemGroup>
-  <ItemGroup>
-    <Analyzer Include="..\packages\Microsoft.CodeAnalysis.Analyzers.1.1.0\analyzers\dotnet\cs\Microsoft.CodeAnalysis.Analyzers.dll" />
-    <Analyzer Include="..\packages\Microsoft.CodeAnalysis.Analyzers.1.1.0\analyzers\dotnet\cs\Microsoft.CodeAnalysis.CSharp.Analyzers.dll" />
-  </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\Umbraco.Core\Umbraco.Core.csproj">
       <Project>{31785bc3-256c-4613-b2f5-a1b0bdded8c1}</Project>
@@ -119,8 +112,27 @@
       <Project>{5d3b8245-ada6-453f-a008-50ed04bfe770}</Project>
       <Name>Umbraco.Tests</Name>
     </ProjectReference>
+    <ProjectReference Include="..\Umbraco.Web\Umbraco.Web.csproj">
+      <Project>{651e1350-91b6-44b7-bd60-7207006d7003}</Project>
+      <Name>Umbraco.Web</Name>
+    </ProjectReference>
+  </ItemGroup>
+  <ItemGroup>
+    <Analyzer Include="..\packages\Microsoft.CodeAnalysis.Analyzers.1.1.0\analyzers\dotnet\cs\Microsoft.CodeAnalysis.Analyzers.dll" />
+    <Analyzer Include="..\packages\Microsoft.CodeAnalysis.Analyzers.1.1.0\analyzers\dotnet\cs\Microsoft.CodeAnalysis.CSharp.Analyzers.dll" />
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <PropertyGroup>
+    <PostBuildEvent>
+    if not exist "$(TargetDir)x86" md "$(TargetDir)x86"
+    xcopy /s /y "$(SolutionDir)packages\Microsoft.SqlServer.Compact.4.0.8854.1\NativeBinaries\x86\*.*" "$(TargetDir)x86"
+    if not exist "$(TargetDir)amd64" md "$(TargetDir)amd64"
+    xcopy /s /y "$(SolutionDir)packages\Microsoft.SqlServer.Compact.4.0.8854.1\NativeBinaries\amd64\*.*" "$(TargetDir)amd64"</PostBuildEvent>
+  </PropertyGroup>
+  <PropertyGroup>
+    <PreBuildEvent>xcopy "$(ProjectDir)"..\packages\SqlServerCE.4.0.0.1\amd64\*.* "$(TargetDir)amd64\" /Y /F /E /I /C /D
+xcopy "$(ProjectDir)"..\packages\SqlServerCE.4.0.0.1\x86\*.* "$(TargetDir)x86\" /Y /F /E /I /C /D</PreBuildEvent>
+  </PropertyGroup>
   <Import Project="..\packages\Microsoft.Diagnostics.Tracing.TraceEvent.1.0.41\build\Microsoft.Diagnostics.Tracing.TraceEvent.targets" Condition="Exists('..\packages\Microsoft.Diagnostics.Tracing.TraceEvent.1.0.41\build\Microsoft.Diagnostics.Tracing.TraceEvent.targets')" />
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
     <PropertyGroup>
@@ -128,14 +140,6 @@
     </PropertyGroup>
     <Error Condition="!Exists('..\packages\Microsoft.Diagnostics.Tracing.TraceEvent.1.0.41\build\Microsoft.Diagnostics.Tracing.TraceEvent.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Microsoft.Diagnostics.Tracing.TraceEvent.1.0.41\build\Microsoft.Diagnostics.Tracing.TraceEvent.targets'))" />
   </Target>
-  <PropertyGroup>
-    <PostBuildEvent>
-    </PostBuildEvent>
-  </PropertyGroup>
-  <PropertyGroup>
-    <PreBuildEvent>xcopy "$(ProjectDir)"..\packages\SqlServerCE.4.0.0.1\amd64\*.* "$(TargetDir)amd64\" /Y /F /E /I /C /D
-xcopy "$(ProjectDir)"..\packages\SqlServerCE.4.0.0.1\x86\*.* "$(TargetDir)x86\" /Y /F /E /I /C /D</PreBuildEvent>
-  </PropertyGroup>
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.
   <Target Name="BeforeBuild">

src/Umbraco.Tests.Benchmarks/XmlPublishedContentInitBenchmarks.cs

@@ -0,0 +1,315 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Xml;
+using BenchmarkDotNet.Attributes;
+using BenchmarkDotNet.Configs;
+using BenchmarkDotNet.Diagnostics.Windows;
+using BenchmarkDotNet.Jobs;
+using Microsoft.CodeAnalysis.CSharp.Syntax;
+using Umbraco.Core;
+using Umbraco.Core.Configuration;
+using Umbraco.Core.Models;
+using Umbraco.Core.Models.PublishedContent;
+using Umbraco.Web.PublishedCache.XmlPublishedCache;
+
+namespace Umbraco.Tests.Benchmarks
+{
+    [Config(typeof(Config))]
+    public class XmlPublishedContentInitBenchmarks
+    {
+        private class Config : ManualConfig
+        {
+            public Config()
+            {
+                Add(new MemoryDiagnoser());
+
+                //The 'quick and dirty' settings, so it runs a little quicker
+                // see benchmarkdotnet FAQ
+                Add(Job.Default
+                    .WithLaunchCount(1) // benchmark process will be launched only once
+                    .WithIterationTime(100) // 100ms per iteration
+                    .WithWarmupCount(3) // 3 warmup iteration
+                    .WithTargetCount(3)); // 3 target iteration              
+            }
+        }
+
+        public XmlPublishedContentInitBenchmarks()
+        {
+            _xml10 = Build(10);
+            _xml100 = Build(100);
+            _xml1000 = Build(1000);
+            _xml10000 = Build(10000);
+        }
+
+        private readonly string[] _intAttributes = { "id", "parentID", "nodeType", "level", "writerID", "creatorID", "template", "sortOrder", "isDoc", "isDraft" };
+        private readonly string[] _strAttributes = { "nodeName", "urlName", "writerName", "creatorName", "path" };
+        private readonly string[] _dateAttributes = { "createDate", "updateDate" };
+        private readonly string[] _guidAttributes = { "key", "version" };
+
+        private XmlDocument Build(int children)
+        {
+            var xml = new XmlDocument();
+            var root = Build(xml, "Home", 10);
+            for (int i = 0; i < children; i++)
+            {
+                var child = Build(xml, "child" + i, 10);
+                root.AppendChild(child);
+            }
+            xml.AppendChild(root);
+            return xml;
+        }
+
+        private XmlElement Build(XmlDocument xml, string name, int propertyCount)
+        {
+            var random = new Random();
+            var content = xml.CreateElement(name);
+            foreach (var p in _intAttributes)
+            {
+                var a = xml.CreateAttribute(p);
+                a.Value = random.Next(1, 9).ToInvariantString();
+                content.Attributes.Append(a);
+            }
+            foreach (var p in _strAttributes)
+            {
+                var a = xml.CreateAttribute(p);
+                a.Value = Guid.NewGuid().ToString();
+                content.Attributes.Append(a);
+            }
+            foreach (var p in _guidAttributes)
+            {
+                var a = xml.CreateAttribute(p);
+                a.Value = Guid.NewGuid().ToString();
+                content.Attributes.Append(a);
+            }
+            foreach (var p in _dateAttributes)
+            {
+                var a = xml.CreateAttribute(p);
+                a.Value = DateTime.Now.ToString("o");
+                content.Attributes.Append(a);
+            }
+
+            for (int i = 0; i < propertyCount; i++)
+            {
+                var prop = xml.CreateElement("prop" + i);
+                var cdata = xml.CreateCDataSection(string.Join("", Enumerable.Range(0, 10).Select(x => Guid.NewGuid().ToString())));
+                prop.AppendChild(cdata);
+                content.AppendChild(prop);
+            }
+
+            return content;
+        }
+
+        private readonly XmlDocument _xml10;
+        private readonly XmlDocument _xml100;
+        private readonly XmlDocument _xml1000;
+        private readonly XmlDocument _xml10000;
+
+        //out props
+        int id, nodeType, level, writerId, creatorId, template, sortOrder;
+        Guid key, version;
+        string name, urlName, writerName, creatorName, docTypeAlias, path;
+        bool isDraft;
+        DateTime createDate, updateDate;
+        PublishedContentType publishedContentType;
+        Dictionary<string, IPublishedProperty> properties;
+
+        [Benchmark(Baseline = true, OperationsPerInvoke = 10)]
+        public void Original_10_Children()
+        {
+            OriginalInitializeNode(_xml10.DocumentElement, false, false,
+                out id, out key, out template, out sortOrder, out name, out writerName, out urlName,
+                out creatorName, out creatorId, out writerId, out docTypeAlias, out nodeType, out path,
+                out version, out createDate, out updateDate, out level, out isDraft, out publishedContentType,
+                out properties);
+        }
+
+        [Benchmark(OperationsPerInvoke = 10)]
+        public void Original_100_Children()
+        {
+            OriginalInitializeNode(_xml100.DocumentElement, false, false,
+                out id, out key, out template, out sortOrder, out name, out writerName, out urlName,
+                out creatorName, out creatorId, out writerId, out docTypeAlias, out nodeType, out path,
+                out version, out createDate, out updateDate, out level, out isDraft, out publishedContentType,
+                out properties);
+        }
+
+        [Benchmark(OperationsPerInvoke = 10)]
+        public void Original_1000_Children()
+        {
+            OriginalInitializeNode(_xml1000.DocumentElement, false, false,
+                out id, out key, out template, out sortOrder, out name, out writerName, out urlName,
+                out creatorName, out creatorId, out writerId, out docTypeAlias, out nodeType, out path,
+                out version, out createDate, out updateDate, out level, out isDraft, out publishedContentType,
+                out properties);
+        }
+
+        [Benchmark(OperationsPerInvoke = 10)]
+        public void Original_10000_Children()
+        {
+            OriginalInitializeNode(_xml10000.DocumentElement, false, false,
+                out id, out key, out template, out sortOrder, out name, out writerName, out urlName,
+                out creatorName, out creatorId, out writerId, out docTypeAlias, out nodeType, out path,
+                out version, out createDate, out updateDate, out level, out isDraft, out publishedContentType,
+                out properties);
+        }
+
+        [Benchmark(OperationsPerInvoke = 10)]
+        public void Enhanced_10_Children()
+        {
+            XmlPublishedContent.InitializeNode(_xml10.DocumentElement, false, false,
+                out id, out key, out template, out sortOrder, out name, out writerName, out urlName,
+                out creatorName, out creatorId, out writerId, out docTypeAlias, out nodeType, out path,
+                out version, out createDate, out updateDate, out level, out isDraft, out publishedContentType,
+                out properties, GetPublishedContentType);
+        }
+
+        [Benchmark(OperationsPerInvoke = 10)]
+        public void Enhanced_100_Children()
+        {
+            XmlPublishedContent.InitializeNode(_xml100.DocumentElement, false, false,
+                out id, out key, out template, out sortOrder, out name, out writerName, out urlName,
+                out creatorName, out creatorId, out writerId, out docTypeAlias, out nodeType, out path,
+                out version, out createDate, out updateDate, out level, out isDraft, out publishedContentType,
+                out properties, GetPublishedContentType);
+        }
+
+        [Benchmark(OperationsPerInvoke = 10)]
+        public void Enhanced_1000_Children()
+        {
+            XmlPublishedContent.InitializeNode(_xml1000.DocumentElement, false, false,
+                out id, out key, out template, out sortOrder, out name, out writerName, out urlName,
+                out creatorName, out creatorId, out writerId, out docTypeAlias, out nodeType, out path,
+                out version, out createDate, out updateDate, out level, out isDraft, out publishedContentType,
+                out properties, GetPublishedContentType);
+        }
+
+        [Benchmark(OperationsPerInvoke = 10)]
+        public void Enhanced_10000_Children()
+        {
+            XmlPublishedContent.InitializeNode(_xml10000.DocumentElement, false, false,
+                out id, out key, out template, out sortOrder, out name, out writerName, out urlName,
+                out creatorName, out creatorId, out writerId, out docTypeAlias, out nodeType, out path,
+                out version, out createDate, out updateDate, out level, out isDraft, out publishedContentType,
+                out properties, GetPublishedContentType);
+        }
+
+
+        internal static void OriginalInitializeNode(XmlNode xmlNode, bool legacy, bool isPreviewing,
+            out int id, out Guid key, out int template, out int sortOrder, out string name, out string writerName, out string urlName,
+            out string creatorName, out int creatorId, out int writerId, out string docTypeAlias, out int docTypeId, out string path,
+            out Guid version, out DateTime createDate, out DateTime updateDate, out int level, out bool isDraft,
+            out PublishedContentType contentType, out Dictionary<string, IPublishedProperty> properties)
+        {
+            //initialize the out params with defaults:
+            writerName = null;
+            docTypeAlias = null;
+            id = template = sortOrder = template = creatorId = writerId = docTypeId = level = default(int);
+            key = version = default(Guid);
+            name = writerName = urlName = creatorName = docTypeAlias = path = null;
+            createDate = updateDate = default(DateTime);
+            isDraft = false;
+            contentType = null;
+            properties = null;
+
+            //return if this is null
+            if (xmlNode == null)
+            {
+                return;
+            }
+
+            if (xmlNode.Attributes != null)
+            {
+                id = int.Parse(xmlNode.Attributes.GetNamedItem("id").Value);
+                if (xmlNode.Attributes.GetNamedItem("key") != null) // because, migration
+                    key = Guid.Parse(xmlNode.Attributes.GetNamedItem("key").Value);
+                if (xmlNode.Attributes.GetNamedItem("template") != null)
+                    template = int.Parse(xmlNode.Attributes.GetNamedItem("template").Value);
+                if (xmlNode.Attributes.GetNamedItem("sortOrder") != null)
+                    sortOrder = int.Parse(xmlNode.Attributes.GetNamedItem("sortOrder").Value);
+                if (xmlNode.Attributes.GetNamedItem("nodeName") != null)
+                    name = xmlNode.Attributes.GetNamedItem("nodeName").Value;
+                if (xmlNode.Attributes.GetNamedItem("writerName") != null)
+                    writerName = xmlNode.Attributes.GetNamedItem("writerName").Value;
+                if (xmlNode.Attributes.GetNamedItem("urlName") != null)
+                    urlName = xmlNode.Attributes.GetNamedItem("urlName").Value;
+                // Creatorname is new in 2.1, so published xml might not have it!
+                try
+                {
+                    creatorName = xmlNode.Attributes.GetNamedItem("creatorName").Value;
+                }
+                catch
+                {
+                    creatorName = writerName;
+                }
+
+                //Added the actual userID, as a user cannot be looked up via full name only...
+                if (xmlNode.Attributes.GetNamedItem("creatorID") != null)
+                    creatorId = int.Parse(xmlNode.Attributes.GetNamedItem("creatorID").Value);
+                if (xmlNode.Attributes.GetNamedItem("writerID") != null)
+                    writerId = int.Parse(xmlNode.Attributes.GetNamedItem("writerID").Value);
+
+                if (legacy)
+                {
+                    if (xmlNode.Attributes.GetNamedItem("nodeTypeAlias") != null)
+                        docTypeAlias = xmlNode.Attributes.GetNamedItem("nodeTypeAlias").Value;
+                }
+                else
+                {
+                    docTypeAlias = xmlNode.Name;
+                }
+
+                if (xmlNode.Attributes.GetNamedItem("nodeType") != null)
+                    docTypeId = int.Parse(xmlNode.Attributes.GetNamedItem("nodeType").Value);
+                if (xmlNode.Attributes.GetNamedItem("path") != null)
+                    path = xmlNode.Attributes.GetNamedItem("path").Value;
+                if (xmlNode.Attributes.GetNamedItem("version") != null)
+                    version = new Guid(xmlNode.Attributes.GetNamedItem("version").Value);
+                if (xmlNode.Attributes.GetNamedItem("createDate") != null)
+                    createDate = DateTime.Parse(xmlNode.Attributes.GetNamedItem("createDate").Value);
+                if (xmlNode.Attributes.GetNamedItem("updateDate") != null)
+                    updateDate = DateTime.Parse(xmlNode.Attributes.GetNamedItem("updateDate").Value);
+                if (xmlNode.Attributes.GetNamedItem("level") != null)
+                    level = int.Parse(xmlNode.Attributes.GetNamedItem("level").Value);
+
+                isDraft = (xmlNode.Attributes.GetNamedItem("isDraft") != null);
+            }
+
+            // load data
+
+            var dataXPath = legacy ? "data" : "* [not(@isDoc)]";
+            var nodes = xmlNode.SelectNodes(dataXPath);
+
+            contentType = GetPublishedContentType(PublishedItemType.Content, docTypeAlias);
+            
+            var propertyNodes = new Dictionary<string, XmlNode>();
+            if (nodes != null)
+                foreach (XmlNode n in nodes)
+                {
+                    var attrs = n.Attributes;
+                    if (attrs == null) continue;
+                    var alias = legacy
+                        ? attrs.GetNamedItem("alias").Value
+                        : n.Name;
+                    propertyNodes[alias.ToLowerInvariant()] = n;
+                }
+            properties = contentType.PropertyTypes.Select(p =>
+            {
+                XmlNode n;
+                return propertyNodes.TryGetValue(p.PropertyTypeAlias.ToLowerInvariant(), out n)
+                    ? new XmlPublishedProperty(p, isPreviewing, n)
+                    : new XmlPublishedProperty(p, isPreviewing);
+            }).Cast<IPublishedProperty>().ToDictionary(
+                x => x.PropertyTypeAlias,
+                x => x,
+                StringComparer.OrdinalIgnoreCase);
+        }
+
+        private static PublishedContentType GetPublishedContentType(PublishedItemType type, string alias)
+        {
+            return new PublishedContentType(alias, new string[] {},
+                new List<PublishedPropertyType>(Enumerable.Range(0, 10).Select(x => new PublishedPropertyType("prop" + x, 0, "test", initConverters:false))));
+
+        }
+    }
+}

src/Umbraco.Tests.Benchmarks/packages.config

@@ -4,11 +4,13 @@
   <package id="BenchmarkDotNet.Core" version="0.9.9" targetFramework="net45" />
   <package id="BenchmarkDotNet.Diagnostics.Windows" version="0.9.9" targetFramework="net45" />
   <package id="BenchmarkDotNet.Toolchains.Roslyn" version="0.9.9" targetFramework="net45" />
+  <package id="Castle.Core" version="4.0.0" targetFramework="net45" />
   <package id="Microsoft.CodeAnalysis.Analyzers" version="1.1.0" targetFramework="net45" />
   <package id="Microsoft.CodeAnalysis.Common" version="1.3.2" targetFramework="net45" />
   <package id="Microsoft.CodeAnalysis.CSharp" version="1.3.2" targetFramework="net45" />
   <package id="Microsoft.Diagnostics.Tracing.TraceEvent" version="1.0.41" targetFramework="net45" />
   <package id="Microsoft.SqlServer.Compact" version="4.0.8854.1" targetFramework="net45" />
+  <package id="Moq" version="4.7.0" targetFramework="net45" />
   <package id="SqlServerCE" version="4.0.0.1" targetFramework="net45" />
   <package id="System.Collections" version="4.0.0" targetFramework="net45" />
   <package id="System.Collections.Immutable" version="1.1.37" targetFramework="net45" />

src/Umbraco.Tests/Dependencies/NuGet.cs

@@ -0,0 +1,190 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.IO;
+using System.Linq;
+using System.Xml.Serialization;
+using NUnit.Framework;
+using Umbraco.Tests.TestHelpers;
+
+namespace Umbraco.Tests.Dependencies
+{
+    [TestFixture]
+    public class NuGet
+    {
+        [Test]
+        public void NuGet_Package_Versions_Are_The_Same_In_All_Package_Config_Files()
+        {
+            var packagesAndVersions = GetNuGetPackagesInSolution();
+            Assert.IsTrue(packagesAndVersions.Any());
+
+            var failTest = false;
+            foreach (var package in packagesAndVersions.OrderBy(x => x.ConfigFilePath))
+            {
+                var matchingPackages = packagesAndVersions.Where(x => string.Equals(x.PackageName, package.PackageName, StringComparison.InvariantCultureIgnoreCase));
+                foreach (var matchingPackage in matchingPackages)
+                {
+                    if (package.PackageVersion == matchingPackage.PackageVersion)
+                        continue;
+
+                    Debug.WriteLine("Package '{0}' with version {1} in {2} doesn't match with version {3} in {4}",
+                        package.PackageName, package.PackageVersion, package.ConfigFilePath,
+                        matchingPackage.PackageVersion, matchingPackage.ConfigFilePath);
+                    failTest = true;
+                }
+            }
+
+            Assert.IsFalse(failTest);
+        }
+
+        [Test]
+        public void NuSpec_File_Matches_Installed_Dependencies()
+        {
+            var solutionDirectory = GetSolutionDirectory();
+            Assert.NotNull(solutionDirectory);
+            Assert.NotNull(solutionDirectory.Parent);
+
+            var nuSpecPath = solutionDirectory.Parent.FullName + "\\build\\NuSpecs\\";
+            Assert.IsTrue(Directory.Exists(nuSpecPath));
+
+            var packagesAndVersions = GetNuGetPackagesInSolution();
+            var failTest = false;
+
+            var nuSpecFiles = Directory.GetFiles(nuSpecPath);
+            foreach (var fileName in nuSpecFiles.Where(x => x.EndsWith("nuspec")))
+            {
+                var serializer = new XmlSerializer(typeof(NuSpec));
+                using (var reader = new StreamReader(fileName))
+                {
+                    var nuspec = (NuSpec)serializer.Deserialize(reader);
+                    var dependencies = nuspec.MetaData.dependencies;
+
+                    //UmbracoCms.Core has version "[$version$]" - ignore
+                    foreach (var dependency in dependencies.Where(x => x.Id != "UmbracoCms.Core"))
+                    {
+                        var dependencyVersionRange = dependency.Version.Replace("[", string.Empty).Replace("(", string.Empty).Split(',');
+                        var dependencyMinimumVersion = dependencyVersionRange.First().Trim();
+                        
+                        var matchingPackages = packagesAndVersions.Where(x => string.Equals(x.PackageName, dependency.Id,
+                                        StringComparison.InvariantCultureIgnoreCase)).ToList();
+                        if (matchingPackages.Any() == false)
+                            continue;
+
+                        // NuGet_Package_Versions_Are_The_Same_In_All_Package_Config_Files test 
+                        // guarantees that all packages have one version, solutionwide, so it's okay to take First() here
+                        if (dependencyMinimumVersion != matchingPackages.First().PackageVersion)
+                        {
+                            Debug.WriteLine("NuSpec dependency '{0}' with minimum version {1} in doesn't match with version {2} in the solution",
+                                dependency.Id, dependencyMinimumVersion, matchingPackages.First().PackageVersion);
+                            failTest = true;
+                        }
+                    }
+                }
+            }
+
+            Assert.IsFalse(failTest);
+        }
+
+        private List<PackageVersionMatcher> GetNuGetPackagesInSolution()
+        {
+            var packagesAndVersions = new List<PackageVersionMatcher>();
+            var solutionDirectory = GetSolutionDirectory();
+            if (solutionDirectory == null)
+                return packagesAndVersions;
+
+            var packageConfigFiles = new List<FileInfo>();
+            var packageDirectories =
+                solutionDirectory.GetDirectories().Where(x =>
+                            x.Name.StartsWith("Umbraco.Tests") == false &&
+                            x.Name.StartsWith("Umbraco.MSBuild.Tasks") == false).ToArray();
+
+            foreach (var directory in packageDirectories)
+            {
+                var packagesFiles = directory.EnumerateFiles("packages.config");
+                packageConfigFiles.AddRange(packagesFiles);
+            }
+
+            foreach (var file in packageConfigFiles)
+            {
+                //read all and de-duplicate packages
+                var serializer = new XmlSerializer(typeof(PackageConfigEntries));
+                using (var reader = new StreamReader(file.FullName))
+                {
+                    var packages = (PackageConfigEntries)serializer.Deserialize(reader);
+                    packagesAndVersions.AddRange(packages.Package.Select(package =>
+                        new PackageVersionMatcher
+                        {
+                            PackageName = package.Id,
+                            PackageVersion = package.Version,
+                            ConfigFilePath = file.FullName
+                        }));
+                }
+            }
+            return packagesAndVersions;
+        }
+
+        private DirectoryInfo GetSolutionDirectory()
+        {
+            var testsDirectory = new FileInfo(TestHelper.MapPathForTest("~/"));
+            if (testsDirectory.Directory == null)
+                return null;
+            if (testsDirectory.Directory.Parent == null || testsDirectory.Directory.Parent.Parent == null)
+                return null;
+            var solutionDirectory = testsDirectory.Directory.Parent.Parent.Parent;
+            return solutionDirectory;
+        }
+    }
+
+    public class PackageVersionMatcher
+    {
+        public string ConfigFilePath { get; set; }
+        public string PackageName { get; set; }
+        public string PackageVersion { get; set; }
+    }
+
+    [XmlType(AnonymousType = true)]
+    [XmlRoot(Namespace = "", IsNullable = false, ElementName = "packages")]
+    public class PackageConfigEntries
+    {
+        [XmlElement("package")]
+        public PackagesPackage[] Package { get; set; }
+    }
+
+    [XmlType(AnonymousType = true, TypeName = "package")]
+    public class PackagesPackage
+    {
+        [XmlAttribute(AttributeName = "id")]
+        public string Id { get; set; }
+
+        [XmlAttribute(AttributeName = "version")]
+        public string Version { get; set; }
+    }
+    
+
+    [XmlType(AnonymousType = true, Namespace = "http://schemas.microsoft.com/packaging/2010/07/nuspec.xsd")]
+    [XmlRoot(Namespace = "http://schemas.microsoft.com/packaging/2010/07/nuspec.xsd", IsNullable = false, ElementName = "package")]
+    public class NuSpec
+    {
+        [XmlElement("metadata")]
+        public Metadata MetaData { get; set; }
+    }
+    
+    [XmlType(AnonymousType = true, Namespace = "http://schemas.microsoft.com/packaging/2010/07/nuspec.xsd", TypeName = "metadata")]
+    public class Metadata
+    {
+        [XmlArrayItem("dependency", IsNullable = false)]
+        //TODO: breaks when renamed to capital D
+        public Dependency[] dependencies { get; set; }
+    }
+
+    [XmlType(AnonymousType = true, Namespace = "http://schemas.microsoft.com/packaging/2010/07/nuspec.xsd", TypeName = "dependencies")]
+    public class Dependency
+    {
+        [XmlAttribute(AttributeName = "id")]
+        public string Id { get; set; }
+        
+        [XmlAttribute(AttributeName = "version")]
+        public string Version { get; set; }
+    }
+
+}

src/Umbraco.Tests/Issues/U9560.cs

@@ -0,0 +1,92 @@
+using System;
+using NUnit.Framework;
+using Umbraco.Core.Models;
+using Umbraco.Tests.TestHelpers;
+
+namespace Umbraco.Tests.Issues
+{
+    [TestFixture]
+    [DatabaseTestBehavior(DatabaseBehavior.NewDbFileAndSchemaPerTest)]
+    public class U9560 : BaseDatabaseFactoryTest
+    {
+        [Test]
+        public void Test()
+        {
+            // create a content type and some properties
+            var contentType = new ContentType(-1);
+            contentType.Alias = "test";
+            contentType.Name = "test";
+            var propertyType = new PropertyType("test", DataTypeDatabaseType.Ntext, "prop") { Name = "Prop", Description = "", Mandatory = false, SortOrder = 1, DataTypeDefinitionId = -88 };
+            contentType.PropertyTypeCollection.Add(propertyType);
+            ServiceContext.ContentTypeService.Save(contentType);
+
+            var aliasName = string.Empty;
+
+            // read fields, same as what we do with PetaPoco Fetch<dynamic>
+            var db = DatabaseContext.Database;
+            db.OpenSharedConnection();
+            try
+            {
+                var conn = db.Connection;
+                var cmd = conn.CreateCommand();
+                cmd.CommandText = "SELECT mandatory, dataTypeId, propertyTypeGroupId, contentTypeId, sortOrder, alias, name, validationRegExp, description from cmsPropertyType where id=" + propertyType.Id;
+                using (var reader = cmd.ExecuteReader())
+                {
+                    while (reader.Read())
+                    {
+                        for (var i = 0; i < reader.FieldCount; i++)
+                            Console.WriteLine(reader.GetName(i));
+                        aliasName = reader.GetName(5);
+                    }
+                }
+            }
+            finally
+            {
+                db.CloseSharedConnection();
+            }
+
+            // note that although the query is for 'alias' the field is named 'Alias'
+            Assert.AreEqual("Alias", aliasName);
+
+            // try differently
+            db.OpenSharedConnection();
+            try
+            {
+                var conn = db.Connection;
+                var cmd = conn.CreateCommand();
+                cmd.CommandText = "SELECT mandatory, dataTypeId, propertyTypeGroupId, contentTypeId, sortOrder, alias as alias, name, validationRegExp, description from cmsPropertyType where id=" + propertyType.Id;
+                using (var reader = cmd.ExecuteReader())
+                {
+                    while (reader.Read())
+                    {
+                        for (var i = 0; i < reader.FieldCount; i++)
+                            Console.WriteLine(reader.GetName(i));
+                        aliasName = reader.GetName(5);
+                    }
+                }
+            }
+            finally
+            {
+                db.CloseSharedConnection();
+            }
+
+            // and now it is OK
+            Assert.AreEqual("alias", aliasName);
+
+            // get the legacy content type
+            var legacyContentType = new umbraco.cms.businesslogic.ContentType(contentType.Id);
+            Assert.AreEqual("test", legacyContentType.Alias);
+
+            // get the legacy properties
+            var legacyProperties = legacyContentType.PropertyTypes;
+
+            // without the fix, due to some (swallowed) inner exception, we have no properties
+            //Assert.IsNull(legacyProperties);
+
+            // thanks to the fix, it works
+            Assert.IsNotNull(legacyProperties);
+            Assert.AreEqual(1, legacyProperties.Count);
+            Assert.AreEqual("prop", legacyProperties[0].Alias);
+        }
+    }
+}

src/Umbraco.Tests/Models/UmbracoEntityTests.cs

@@ -1,7 +1,10 @@
 using System;
 using System.Diagnostics;
+using Moq;
 using NUnit.Framework;
+using Umbraco.Core.Logging;
 using Umbraco.Core.Models;
+using Umbraco.Core.Models.EntityBase;
 using Umbraco.Core.Serialization;
 
 namespace Umbraco.Tests.Models
@@ -9,6 +12,132 @@ namespace Umbraco.Tests.Models
     [TestFixture]
     public class UmbracoEntityTests
     {
+        [Test]
+        public void Validate_Path()
+        {
+            var entity = new UmbracoEntity();
+
+            //it's empty with no id so we need to allow it
+            Assert.IsTrue(entity.ValidatePath());
+
+            entity.Id = 1234;
+
+            //it has an id but no path, so we can't allow it
+            Assert.IsFalse(entity.ValidatePath());
+
+            entity.Path = "-1";
+
+            //invalid path
+            Assert.IsFalse(entity.ValidatePath());
+            
+            entity.Path = string.Concat("-1,", entity.Id);
+
+            //valid path
+            Assert.IsTrue(entity.ValidatePath());
+        }
+
+        [Test]
+        public void Ensure_Path_Throws_Without_Id()
+        {
+            var entity = new UmbracoEntity();
+
+            //no id assigned
+            Assert.Throws<InvalidOperationException>(() => entity.EnsureValidPath(Mock.Of<ILogger>(), umbracoEntity => new UmbracoEntity(), umbracoEntity => { }));
+        }
+
+        [Test]
+        public void Ensure_Path_Throws_Without_Parent()
+        {
+            var entity = new UmbracoEntity {Id = 1234};
+
+            //no parent found
+            Assert.Throws<NullReferenceException>(() => entity.EnsureValidPath(Mock.Of<ILogger>(), umbracoEntity => null, umbracoEntity => { }));            
+        }
+
+        [Test]
+        public void Ensure_Path_Entity_At_Root()
+        {
+            var entity = new UmbracoEntity
+            {
+                Id = 1234,
+                ParentId = -1
+            };
+
+
+            entity.EnsureValidPath(Mock.Of<ILogger>(), umbracoEntity => null, umbracoEntity => { });
+
+            //works because it's under the root
+            Assert.AreEqual("-1,1234", entity.Path);
+        }
+
+        [Test]
+        public void Ensure_Path_Entity_Valid_Parent()
+        {
+            var entity = new UmbracoEntity
+            {
+                Id = 1234,
+                ParentId = 888
+            };
+
+            entity.EnsureValidPath(Mock.Of<ILogger>(), umbracoEntity => umbracoEntity.ParentId == 888 ? new UmbracoEntity{Id = 888, Path = "-1,888"} : null, umbracoEntity => { });
+
+            //works because the parent was found
+            Assert.AreEqual("-1,888,1234", entity.Path);
+        }
+
+        [Test]
+        public void Ensure_Path_Entity_Valid_Recursive_Parent()
+        {
+            var parentA = new UmbracoEntity
+            {
+                Id = 999,
+                ParentId = -1
+            };
+
+            var parentB = new UmbracoEntity
+            {
+                Id = 888,
+                ParentId = 999
+            };
+
+            var parentC = new UmbracoEntity
+            {
+                Id = 777,
+                ParentId = 888
+            };
+
+            var entity = new UmbracoEntity
+            {
+                Id = 1234,
+                ParentId = 777
+            };
+
+            Func<IUmbracoEntity, IUmbracoEntity> getParent = umbracoEntity =>
+            {
+                switch (umbracoEntity.ParentId)
+                {
+                    case 999:
+                        return parentA;
+                    case 888:
+                        return parentB;
+                    case 777:
+                        return parentC;
+                    case 1234:
+                        return entity;
+                    default:
+                        return null;
+                }
+            };
+            
+            //this will recursively fix all paths
+            entity.EnsureValidPath(Mock.Of<ILogger>(), getParent, umbracoEntity => { });
+            
+            Assert.AreEqual("-1,999", parentA.Path);
+            Assert.AreEqual("-1,999,888", parentB.Path);
+            Assert.AreEqual("-1,999,888,777", parentC.Path);
+            Assert.AreEqual("-1,999,888,777,1234", entity.Path);            
+        }
+
         [Test]
         public void UmbracoEntity_Can_Be_Initialized_From_Dynamic()
         {

src/Umbraco.Tests/Persistence/DatabaseContextTests.cs

@@ -34,7 +34,7 @@ namespace Umbraco.Tests.Persistence
 				{
 					DatabaseContext = _dbContext,
 					IsReady = true
-				};			
+				};
 		}
 
 		[TearDown]
@@ -44,6 +44,13 @@ namespace Umbraco.Tests.Persistence
 			ApplicationContext.Current = null;
 		}
 
+        [Test]
+        public void Database_Connection()
+        {
+            var db = _dbContext.Database;
+            Assert.IsNull(db.Connection);
+        }
+
         [Test]
         public void Can_Verify_Single_Database_Instance()
         {
@@ -99,7 +106,7 @@ namespace Umbraco.Tests.Persistence
 
             var appCtx = new ApplicationContext(
                 new DatabaseContext(Mock.Of<IDatabaseFactory>(), Mock.Of<ILogger>(), Mock.Of<ISqlSyntaxProvider>(), "test"),
-                new ServiceContext(migrationEntryService: Mock.Of<IMigrationEntryService>()), 
+                new ServiceContext(migrationEntryService: Mock.Of<IMigrationEntryService>()),
                 CacheHelper.CreateDisabledCacheHelper(),
                 new ProfilingLogger(Mock.Of<ILogger>(), Mock.Of<IProfiler>()));
 

src/Umbraco.Tests/Persistence/Querying/ExpressionTests.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Diagnostics;
+using System.Linq;
 using System.Linq.Expressions;
 using Moq;
 using NUnit.Framework;
@@ -16,19 +17,52 @@ namespace Umbraco.Tests.Persistence.Querying
     [TestFixture]
     public class ExpressionTests : BaseUsingSqlCeSyntax
     {
-        //    [Test]
-        //    public void Can_Query_With_Content_Type_Alias()
-        //    {
-        //        //Arrange
-        //        Expression<Func<IMedia, bool>> predicate = content => content.ContentType.Alias == "Test";
-        //        var modelToSqlExpressionHelper = new ModelToSqlExpressionVisitor<IContent>();
-        //        var result = modelToSqlExpressionHelper.Visit(predicate);
+        [Test]
+        public void Equals_Claus_With_Two_Entity_Values()
+        {
+            var dataType = new DataTypeDefinition(-1, "Test")
+            {
+                Id = 12345
+            };
+            Expression<Func<PropertyType, bool>> predicate = p => p.DataTypeDefinitionId == dataType.Id;
+            var modelToSqlExpressionHelper = new ModelToSqlExpressionVisitor<PropertyType>();
+            var result = modelToSqlExpressionHelper.Visit(predicate);
 
-        //        Debug.Print("Model to Sql ExpressionHelper: \n" + result);
+            Debug.Print("Model to Sql ExpressionHelper: \n" + result);
 
-        //        Assert.AreEqual("[cmsContentType].[alias] = @0", result);
-        //        Assert.AreEqual("Test", modelToSqlExpressionHelper.GetSqlParameters()[0]);
-        //    }
+            Assert.AreEqual("([cmsPropertyType].[dataTypeId] = @0)", result);
+            Assert.AreEqual(12345, modelToSqlExpressionHelper.GetSqlParameters()[0]);
+        }
+
+        [Test]
+        public void Can_Query_With_Content_Type_Alias()
+        {
+            //Arrange
+            Expression<Func<IMedia, bool>> predicate = content => content.ContentType.Alias == "Test";
+            var modelToSqlExpressionHelper = new ModelToSqlExpressionVisitor<IContent>();
+            var result = modelToSqlExpressionHelper.Visit(predicate);
+
+            Debug.Print("Model to Sql ExpressionHelper: \n" + result);
+
+            Assert.AreEqual("([cmsContentType].[alias] = @0)", result);
+            Assert.AreEqual("Test", modelToSqlExpressionHelper.GetSqlParameters()[0]);
+        }
+
+        [Test]
+        public void Can_Query_With_Content_Type_Aliases()
+        {
+            //Arrange
+            var aliases = new[] {"Test1", "Test2"};
+            Expression<Func<IMedia, bool>> predicate = content => aliases.Contains(content.ContentType.Alias);
+            var modelToSqlExpressionHelper = new ModelToSqlExpressionVisitor<IContent>();
+            var result = modelToSqlExpressionHelper.Visit(predicate);
+
+            Debug.Print("Model to Sql ExpressionHelper: \n" + result);
+
+            Assert.AreEqual("[cmsContentType].[alias] IN (@1,@2)", result);
+            Assert.AreEqual("Test1", modelToSqlExpressionHelper.GetSqlParameters()[1]);
+            Assert.AreEqual("Test2", modelToSqlExpressionHelper.GetSqlParameters()[2]);
+        }
 
         [Test]
         public void CachedExpression_Can_Verify_Path_StartsWith_Predicate_In_Same_Result()

src/Umbraco.Tests/Persistence/Repositories/ContentRepositoryTest.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Globalization;
 using System.Linq;
 using System.Text.RegularExpressions;
 using System.Xml.Linq;
@@ -21,7 +22,6 @@ using Umbraco.Tests.TestHelpers;
 using Umbraco.Tests.TestHelpers.Entities;
 using umbraco.editorControls.tinyMCE3;
 using umbraco.interfaces;
-using Umbraco.Core.Models.EntityBase;
 using Umbraco.Core.Persistence.DatabaseModelDefinitions;
 
 namespace Umbraco.Tests.Persistence.Repositories
@@ -36,11 +36,15 @@ namespace Umbraco.Tests.Persistence.Repositories
             base.Initialize();
 
             CreateTestData();
+
+            VersionableRepositoryBase<int, IContent>.ThrowOnWarning = true;
         }
 
         [TearDown]
         public override void TearDown()
         {
+            VersionableRepositoryBase<int, IContent>.ThrowOnWarning = false;
+
             base.TearDown();
         }
 
@@ -67,6 +71,191 @@ namespace Umbraco.Tests.Persistence.Repositories
             return repository;
         }
 
+        [Test]
+        public void Get_Always_Returns_Latest_Version()
+        {
+            // Arrange
+            var provider = new PetaPocoUnitOfWorkProvider(Logger);
+            var unitOfWork = provider.GetUnitOfWork();
+            ContentTypeRepository contentTypeRepository;
+            IContent content1;
+
+            var versions = new List<Guid>();
+            using (var repository = CreateRepository(unitOfWork, out contentTypeRepository))
+            {
+                var hasPropertiesContentType = MockedContentTypes.CreateSimpleContentType("umbTextpage1", "Textpage");
+                content1 = MockedContent.CreateSimpleContent(hasPropertiesContentType);
+
+                //save version
+                contentTypeRepository.AddOrUpdate(hasPropertiesContentType);
+                repository.AddOrUpdate(content1);
+                unitOfWork.Commit();
+                versions.Add(content1.Version);
+
+                //publish version
+                content1.ChangePublishedState(PublishedState.Published);
+                repository.AddOrUpdate(content1);
+                unitOfWork.Commit();
+                versions.Add(content1.Version);
+
+                //change something and make a pending version
+                content1.Name = "new name";
+                content1.ChangePublishedState(PublishedState.Saved);
+                repository.AddOrUpdate(content1);
+                unitOfWork.Commit();
+                versions.Add(content1.Version);
+            }
+
+            // Assert
+            Assert.AreEqual(3, versions.Distinct().Count());
+            using (var repository = CreateRepository(unitOfWork, out contentTypeRepository))
+            {
+                var content = repository.GetByQuery(new Query<IContent>().Where(c => c.Id == content1.Id)).ToArray()[0];
+                Assert.AreEqual(versions[2], content.Version);
+
+                content = repository.Get(content1.Id);
+                Assert.AreEqual(versions[2], content.Version);
+
+                foreach (var version in versions)
+                {
+                    content = repository.GetByVersion(version);
+                    Assert.IsNotNull(content);
+                    Assert.AreEqual(version, content.Version);
+                }
+            }
+        }
+
+        [Test]
+        public void Deal_With_Corrupt_Duplicate_Newest_Published_Flags()
+        {
+            // Arrange
+            var provider = new PetaPocoUnitOfWorkProvider(Logger);
+            var unitOfWork = provider.GetUnitOfWork();
+            ContentTypeRepository contentTypeRepository;
+            IContent content1;
+
+            using (var repository = CreateRepository(unitOfWork, out contentTypeRepository))
+            {
+                var hasPropertiesContentType = MockedContentTypes.CreateSimpleContentType("umbTextpage1", "Textpage");
+                content1 = MockedContent.CreateSimpleContent(hasPropertiesContentType);
+                
+                contentTypeRepository.AddOrUpdate(hasPropertiesContentType);
+                repository.AddOrUpdate(content1);                
+                unitOfWork.Commit();                
+            }
+
+            var versionDtos = new List<ContentVersionDto>();
+
+            //Now manually corrupt the data
+            var versions = new[] { Guid.NewGuid(), Guid.NewGuid() };
+            for (var index = 0; index < versions.Length; index++)
+            {
+                var version = versions[index];
+                var versionDate = DateTime.Now.AddMinutes(index);
+                var versionDto = new ContentVersionDto
+                {
+                    NodeId = content1.Id,
+                    VersionDate = versionDate,
+                    VersionId = version
+                };
+                this.DatabaseContext.Database.Insert(versionDto);
+                versionDtos.Add(versionDto);
+                this.DatabaseContext.Database.Insert(new DocumentDto
+                {
+                    Newest = true,
+                    NodeId = content1.Id,
+                    Published = true,
+                    Text = content1.Name,
+                    VersionId = version,
+                    WriterUserId = 0,
+                    UpdateDate = versionDate,
+                    TemplateId = content1.Template == null || content1.Template.Id <= 0 ? null : (int?) content1.Template.Id
+                });
+            }
+
+            // Assert
+            using (var repository = CreateRepository(unitOfWork, out contentTypeRepository))
+            {
+                var content = repository.GetByQuery(new Query<IContent>().Where(c => c.Id == content1.Id)).ToArray();
+                Assert.AreEqual(1, content.Length);
+                Assert.AreEqual(content[0].Version, versionDtos.Single(x => x.Id == versionDtos.Max(y => y.Id)).VersionId);
+                Assert.AreEqual(content[0].UpdateDate.ToString(CultureInfo.InvariantCulture), versionDtos.Single(x => x.Id == versionDtos.Max(y => y.Id)).VersionDate.ToString(CultureInfo.InvariantCulture));
+
+                var contentItem = repository.GetByVersion(content1.Version);
+                Assert.IsNotNull(contentItem);
+
+                contentItem = repository.Get(content1.Id);
+                Assert.IsNotNull(contentItem);
+                Assert.AreEqual(contentItem.UpdateDate.ToString(CultureInfo.InvariantCulture), versionDtos.Single(x => x.Id == versionDtos.Max(y => y.Id)).VersionDate.ToString(CultureInfo.InvariantCulture));
+                Assert.AreEqual(contentItem.Version, versionDtos.Single(x => x.Id == versionDtos.Max(y => y.Id)).VersionId);
+
+                var allVersions = repository.GetAllVersions(content[0].Id);
+                var allKnownVersions = versionDtos.Select(x => x.VersionId).Union(new[]{ content1.Version }).ToArray();
+                Assert.IsTrue(allKnownVersions.ContainsAll(allVersions.Select(x => x.Version)));
+                Assert.IsTrue(allVersions.Select(x => x.Version).ContainsAll(allKnownVersions));
+            }
+        }
+
+        /// <summary>
+        /// This tests the regression issue of U4-9438
+        /// </summary>
+        /// <remarks>
+        /// The problem was the iteration of the property data in VersionableRepositoryBase when a content item
+        /// in the list actually doesn't have any property types, it would still skip over a property row.
+        /// To test, we have 3 content items, the first has properties, the second doesn't and the third does.
+        /// </remarks>
+        [Test]
+        public void Property_Data_Assigned_Correctly()
+        {
+            // Arrange
+            var provider = new PetaPocoUnitOfWorkProvider(Logger);
+            var unitOfWork = provider.GetUnitOfWork();
+            ContentTypeRepository contentTypeRepository;
+
+            var allContent = new List<IContent>();
+            using (var repository = CreateRepository(unitOfWork, out contentTypeRepository))
+            {
+                var emptyContentType = MockedContentTypes.CreateBasicContentType();
+                var hasPropertiesContentType = MockedContentTypes.CreateSimpleContentType("umbTextpage1", "Textpage");
+                var content1 = MockedContent.CreateSimpleContent(hasPropertiesContentType);
+                var content2 = MockedContent.CreateBasicContent(emptyContentType);
+                var content3 = MockedContent.CreateSimpleContent(hasPropertiesContentType);
+
+                // Act
+                contentTypeRepository.AddOrUpdate(emptyContentType);
+                contentTypeRepository.AddOrUpdate(hasPropertiesContentType);
+                repository.AddOrUpdate(content1);
+                repository.AddOrUpdate(content2);
+                repository.AddOrUpdate(content3);
+                unitOfWork.Commit();
+
+                allContent.Add(content1);
+                allContent.Add(content2);
+                allContent.Add(content3);
+            }
+
+            // Assert
+            using (var repository = CreateRepository(unitOfWork, out contentTypeRepository))
+            {
+                //this will cause the GetPropertyCollection to execute and we need to ensure that 
+                // all of the properties and property types are all correct
+                var result = repository.GetAll(allContent.Select(x => x.Id).ToArray()).ToArray();
+
+                foreach (var content in result)
+                {
+                    foreach (var contentProperty in content.Properties)
+                    {
+                        //prior to the fix, the 2nd document iteration in the GetPropertyCollection would have caused
+                        //the enumerator to move forward past the first property of the 3rd document which would have 
+                        //ended up not assiging a property to the 3rd document. This would have ended up with the 3rd
+                        //document still having 3 properties but the last one would not have been assigned an identity
+                        //because the property data would not have been assigned.
+                        Assert.IsTrue(contentProperty.HasIdentity);
+                    }
+                }
+            }
+        }
+
         [Test]
         public void Rebuild_Xml_Structures_With_Non_Latest_Version()
         {
@@ -166,6 +355,62 @@ namespace Umbraco.Tests.Persistence.Repositories
             }
         }
 
+        [Test]
+        public void Rebuild_All_Xml_Structures_Ensure_Orphaned_Are_Removed()
+        {
+            var provider = new PetaPocoUnitOfWorkProvider(Logger);
+            var unitOfWork = provider.GetUnitOfWork();
+            ContentTypeRepository contentTypeRepository;
+            using (var repository = CreateRepository(unitOfWork, out contentTypeRepository))
+            {
+                //delete all xml
+                unitOfWork.Database.Execute("DELETE FROM cmsContentXml");
+
+                var contentType1 = MockedContentTypes.CreateSimpleContentType("Textpage1", "Textpage1");
+                contentTypeRepository.AddOrUpdate(contentType1);
+                var allCreated = new List<IContent>();
+
+                for (var i = 0; i < 100; i++)
+                {
+                    //These will be non-published so shouldn't show up
+                    var c1 = MockedContent.CreateSimpleContent(contentType1);
+                    repository.AddOrUpdate(c1);
+                    allCreated.Add(c1);
+                }
+                for (var i = 0; i < 100; i++)
+                {
+                    var c1 = MockedContent.CreateSimpleContent(contentType1);
+                    c1.ChangePublishedState(PublishedState.Published);
+                    repository.AddOrUpdate(c1);
+                    allCreated.Add(c1);
+                }
+                unitOfWork.Commit();
+
+                //now create some versions of this content - this shouldn't affect the xml structures saved
+                for (int i = 0; i < allCreated.Count; i++)
+                {
+                    allCreated[i].Name = "blah" + i;
+                    repository.AddOrUpdate(allCreated[i]);
+                }
+                unitOfWork.Commit();
+
+                //Add some extra orphaned rows that shouldn't be there
+                var notPublished = MockedContent.CreateSimpleContent(contentType1);
+                repository.AddOrUpdate(notPublished);
+                unitOfWork.Commit();
+                //Force add it
+                unitOfWork.Database.Insert(new ContentXmlDto
+                {
+                    NodeId = notPublished.Id,
+                    Xml = "<test></test>"
+                });
+
+                repository.RebuildXmlStructures(media => new XElement("test"), 10);
+
+                Assert.AreEqual(100, unitOfWork.Database.ExecuteScalar<int>("SELECT COUNT(*) FROM cmsContentXml"));
+            }
+        }
+
         [Test]
         public void Rebuild_All_Xml_Structures_For_Content_Type()
         {

src/Umbraco.Tests/Persistence/Repositories/ContentTypeRepositoryTest.cs

@@ -172,6 +172,38 @@ namespace Umbraco.Tests.Persistence.Repositories
             }
         }
 
+        [Test]
+        public void Can_Get_All_Containers()
+        {
+            var provider = new PetaPocoUnitOfWorkProvider(Logger);
+            var unitOfWork = provider.GetUnitOfWork();
+            EntityContainer container1, container2, container3;
+            using (var containerRepository = CreateContainerRepository(unitOfWork, Constants.ObjectTypes.DocumentTypeContainerGuid))
+            {
+                container1 = new EntityContainer(Constants.ObjectTypes.DocumentTypeGuid) { Name = "container1" };
+                containerRepository.AddOrUpdate(container1);
+                container2 = new EntityContainer(Constants.ObjectTypes.DocumentTypeGuid) { Name = "container2" };
+                containerRepository.AddOrUpdate(container2);
+                container3 = new EntityContainer(Constants.ObjectTypes.DocumentTypeGuid) { Name = "container3" };
+                containerRepository.AddOrUpdate(container3);
+                unitOfWork.Commit();
+                Assert.That(container1.Id, Is.GreaterThan(0));
+                Assert.That(container2.Id, Is.GreaterThan(0));
+                Assert.That(container3.Id, Is.GreaterThan(0));
+            }
+            using (var containerRepository = CreateContainerRepository(unitOfWork, Constants.ObjectTypes.DocumentTypeContainerGuid))
+            {
+                var found1 = containerRepository.Get(container1.Id);
+                Assert.IsNotNull(found1);
+                var found2 = containerRepository.Get(container2.Id);
+                Assert.IsNotNull(found2);
+                var found3 = containerRepository.Get(container3.Id);
+                Assert.IsNotNull(found3);
+                var allContainers = containerRepository.GetAll();
+                Assert.AreEqual(3, allContainers.Count());
+            }
+        }
+
         [Test]
         public void Can_Delete_Container()
         {

src/Umbraco.Tests/Persistence/Repositories/EntityRepositoryTest.cs

@@ -0,0 +1,183 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Moq;
+using NUnit.Framework;
+using Umbraco.Core;
+using Umbraco.Core.Configuration.UmbracoSettings;
+using Umbraco.Core.IO;
+using Umbraco.Core.Models;
+using Umbraco.Core.Models.EntityBase;
+using Umbraco.Core.Models.Rdbms;
+using Umbraco.Core.Persistence.Querying;
+using Umbraco.Core.Persistence.Repositories;
+using Umbraco.Core.Persistence.UnitOfWork;
+using Umbraco.Tests.TestHelpers;
+using Umbraco.Tests.TestHelpers.Entities;
+
+namespace Umbraco.Tests.Persistence.Repositories
+{
+    [DatabaseTestBehavior(DatabaseBehavior.NewDbFileAndSchemaPerTest)]
+    [TestFixture]
+    public class EntityRepositoryTest : BaseDatabaseFactoryTest
+    {
+        [SetUp]
+        public override void Initialize()
+        {
+            base.Initialize();            
+        }
+
+        [TearDown]
+        public override void TearDown()
+        {
+            base.TearDown();
+        }
+        
+        private ContentRepository CreateContentRepository(IDatabaseUnitOfWork unitOfWork, out ContentTypeRepository contentTypeRepository)
+        {
+            TemplateRepository tr;
+            return CreateContentRepository(unitOfWork, out contentTypeRepository, out tr);
+        }
+
+        private ContentRepository CreateContentRepository(IDatabaseUnitOfWork unitOfWork, out ContentTypeRepository contentTypeRepository, out TemplateRepository templateRepository)
+        {
+            templateRepository = new TemplateRepository(unitOfWork, CacheHelper, Logger, SqlSyntax, Mock.Of<IFileSystem>(), Mock.Of<IFileSystem>(), Mock.Of<ITemplatesSection>());
+            var tagRepository = new TagRepository(unitOfWork, CacheHelper, Logger, SqlSyntax);
+            contentTypeRepository = new ContentTypeRepository(unitOfWork, CacheHelper, Logger, SqlSyntax, templateRepository);
+            var repository = new ContentRepository(unitOfWork, CacheHelper, Logger, SqlSyntax, contentTypeRepository, templateRepository, tagRepository, Mock.Of<IContentSection>());
+            return repository;
+        }
+
+        [Test]
+        public void Deal_With_Corrupt_Duplicate_Newest_Published_Flags_Full_Model()
+        {
+            // Arrange
+            var provider = new PetaPocoUnitOfWorkProvider(Logger);
+            var unitOfWork = provider.GetUnitOfWork();
+            ContentTypeRepository contentTypeRepository;
+            IContent content1;            
+
+            using (var repository = CreateContentRepository(unitOfWork, out contentTypeRepository))
+            {
+                var hasPropertiesContentType = MockedContentTypes.CreateSimpleContentType("umbTextpage1", "Textpage");
+                content1 = MockedContent.CreateSimpleContent(hasPropertiesContentType);
+
+                contentTypeRepository.AddOrUpdate(hasPropertiesContentType);
+                repository.AddOrUpdate(content1);
+                unitOfWork.Commit();
+            }
+
+            var versionDtos = new List<ContentVersionDto>();
+
+            //Now manually corrupt the data
+            var versions = new[] {Guid.NewGuid(), Guid.NewGuid()};
+            for (var index = 0; index < versions.Length; index++)
+            {
+                var version = versions[index];
+                var versionDate = DateTime.Now.AddMinutes(index);
+                var versionDto = new ContentVersionDto
+                {
+                    NodeId = content1.Id,
+                    VersionDate = versionDate,
+                    VersionId = version
+                };
+                this.DatabaseContext.Database.Insert(versionDto);
+                versionDtos.Add(versionDto);
+                this.DatabaseContext.Database.Insert(new DocumentDto
+                {
+                    Newest = true,
+                    NodeId = content1.Id,
+                    Published = true,
+                    Text = content1.Name,
+                    VersionId = version,
+                    WriterUserId = 0,
+                    UpdateDate = versionDate,
+                    TemplateId = content1.Template == null || content1.Template.Id <= 0 ? null : (int?)content1.Template.Id
+                });
+            }
+
+            // Assert
+            using (var repository = new EntityRepository(unitOfWork))
+            {
+                var content = repository.GetByQuery(new Query<IUmbracoEntity>().Where(c => c.Id == content1.Id), Constants.ObjectTypes.DocumentGuid).ToArray();
+                Assert.AreEqual(1, content.Length);
+                Assert.AreEqual(versionDtos.Max(x => x.Id), content[0].AdditionalData["VersionId"]);
+
+                content = repository.GetAll(Constants.ObjectTypes.DocumentGuid, content[0].Key).ToArray();
+                Assert.AreEqual(1, content.Length);
+                Assert.AreEqual(versionDtos.Max(x => x.Id), content[0].AdditionalData["VersionId"]);
+
+                content = repository.GetAll(Constants.ObjectTypes.DocumentGuid, content[0].Id).ToArray();
+                Assert.AreEqual(1, content.Length);
+                Assert.AreEqual(versionDtos.Max(x => x.Id), content[0].AdditionalData["VersionId"]);
+
+                var contentItem = repository.Get(content[0].Id, Constants.ObjectTypes.DocumentGuid);
+                Assert.AreEqual(versionDtos.Max(x => x.Id), contentItem.AdditionalData["VersionId"]);
+
+                contentItem = repository.GetByKey(content[0].Key, Constants.ObjectTypes.DocumentGuid);
+                Assert.AreEqual(versionDtos.Max(x => x.Id), contentItem.AdditionalData["VersionId"]);
+            }
+        }
+
+        /// <summary>
+        /// The Slim model will test the EntityRepository when it doesn't know the object type so it will 
+        /// make the simplest (slim) query
+        /// </summary>
+        [Test]
+        public void Deal_With_Corrupt_Duplicate_Newest_Published_Flags_Slim_Model()
+        {
+            // Arrange
+            var provider = new PetaPocoUnitOfWorkProvider(Logger);
+            var unitOfWork = provider.GetUnitOfWork();
+            ContentTypeRepository contentTypeRepository;
+            IContent content1;
+
+            using (var repository = CreateContentRepository(unitOfWork, out contentTypeRepository))
+            {
+                var hasPropertiesContentType = MockedContentTypes.CreateSimpleContentType("umbTextpage1", "Textpage");
+                content1 = MockedContent.CreateSimpleContent(hasPropertiesContentType);
+
+                contentTypeRepository.AddOrUpdate(hasPropertiesContentType);
+                repository.AddOrUpdate(content1);
+                unitOfWork.Commit();
+            }
+
+            //Now manually corrupt the data
+            var versions = new[] { Guid.NewGuid(), Guid.NewGuid() };
+            for (var index = 0; index < versions.Length; index++)
+            {
+                var version = versions[index];
+                var versionDate = DateTime.Now.AddMinutes(index);
+                var versionDto = new ContentVersionDto
+                {
+                    NodeId = content1.Id,
+                    VersionDate = versionDate,
+                    VersionId = version
+                };
+                this.DatabaseContext.Database.Insert(versionDto);
+                this.DatabaseContext.Database.Insert(new DocumentDto
+                {
+                    Newest = true,
+                    NodeId = content1.Id,
+                    Published = true,
+                    Text = content1.Name,
+                    VersionId = version,
+                    WriterUserId = 0,
+                    UpdateDate = versionDate,
+                    TemplateId = content1.Template == null || content1.Template.Id <= 0 ? null : (int?)content1.Template.Id
+                });
+            }
+
+            // Assert
+            using (var repository = new EntityRepository(unitOfWork))
+            {
+                var content = repository.GetByQuery(new Query<IUmbracoEntity>().Where(c => c.Id == content1.Id)).ToArray();
+                Assert.AreEqual(1, content.Length);
+                var contentItem = repository.Get(content[0].Id);
+                Assert.IsNotNull(contentItem);
+                contentItem = repository.GetByKey(content[0].Key);
+                Assert.IsNotNull(contentItem);
+            }
+        }
+    }
+}

src/Umbraco.Tests/Persistence/Repositories/MediaRepositoryTest.cs

@@ -4,6 +4,7 @@ using System.Linq;
 using System.Xml.Linq;
 using Moq;
 using NUnit.Framework;
+using Umbraco.Core;
 using Umbraco.Core.Configuration.UmbracoSettings;
 using Umbraco.Core.Logging;
 using Umbraco.Core.Models;
@@ -70,6 +71,44 @@ namespace Umbraco.Tests.Persistence.Repositories
             }
         }
 
+        [Test]
+        public void Rebuild_All_Xml_Structures_Ensure_Orphaned_Are_Removed()
+        {
+            var provider = new PetaPocoUnitOfWorkProvider(Logger);
+            var unitOfWork = provider.GetUnitOfWork();
+            MediaTypeRepository mediaTypeRepository;
+            using (var repository = CreateRepository(unitOfWork, out mediaTypeRepository))
+            {
+                //delete all xml
+                unitOfWork.Database.Execute("DELETE FROM cmsContentXml");
+
+                var mediaType = mediaTypeRepository.Get(1032);
+
+                for (var i = 0; i < 100; i++)
+                {
+                    var image = MockedMedia.CreateMediaImage(mediaType, -1);
+                    repository.AddOrUpdate(image);
+                }
+                unitOfWork.Commit();
+
+                //Add some extra orphaned rows that shouldn't be there
+                var trashed = MockedMedia.CreateMediaImage(mediaType, -1);
+                trashed.ChangeTrashedState(true, Constants.System.RecycleBinMedia);
+                repository.AddOrUpdate(trashed);
+                unitOfWork.Commit();
+                //Force add it
+                unitOfWork.Database.Insert(new ContentXmlDto
+                {
+                    NodeId = trashed.Id,
+                    Xml = "<test></test>"
+                });
+
+                repository.RebuildXmlStructures(media => new XElement("test"), 10);
+
+                Assert.AreEqual(103, unitOfWork.Database.ExecuteScalar<int>("SELECT COUNT(*) FROM cmsContentXml"));
+            }
+        }
+
         [Test]
         public void Rebuild_Some_Xml_Structures()
         {
@@ -345,6 +384,61 @@ namespace Umbraco.Tests.Persistence.Repositories
             }
         }
 
+        [Test]
+        public void Can_Perform_GetByQuery_On_MediaRepository_With_ContentType_Id_Filter()
+        {
+            // Arrange            
+            var folderMediaType = ServiceContext.ContentTypeService.GetMediaType(1031);
+            var provider = new PetaPocoUnitOfWorkProvider(Logger);
+            var unitOfWork = provider.GetUnitOfWork();
+            MediaTypeRepository mediaTypeRepository;
+            using (var repository = CreateRepository(unitOfWork, out mediaTypeRepository))
+            {
+                // Act
+                for (int i = 0; i < 10; i++)
+                {
+                    var folder = MockedMedia.CreateMediaFolder(folderMediaType, -1);
+                    repository.AddOrUpdate(folder);
+                }
+                unitOfWork.Commit();
+
+                var types = new[] { 1031 };
+                var query = Query<IMedia>.Builder.Where(x => types.Contains(x.ContentTypeId));
+                var result = repository.GetByQuery(query);
+
+                // Assert
+                Assert.That(result.Count(), Is.GreaterThanOrEqualTo(11)); 
+            }
+        }
+
+        [Ignore("We could allow this to work but it requires an extra join on the query used which currently we don't absolutely need so leaving this out for now")]
+        [Test]
+        public void Can_Perform_GetByQuery_On_MediaRepository_With_ContentType_Alias_Filter()
+        {
+            // Arrange            
+            var folderMediaType = ServiceContext.ContentTypeService.GetMediaType(1031);
+            var provider = new PetaPocoUnitOfWorkProvider(Logger);
+            var unitOfWork = provider.GetUnitOfWork();
+            MediaTypeRepository mediaTypeRepository;
+            using (var repository = CreateRepository(unitOfWork, out mediaTypeRepository))
+            {
+                // Act
+                for (int i = 0; i < 10; i++)
+                {
+                    var folder = MockedMedia.CreateMediaFolder(folderMediaType, -1);
+                    repository.AddOrUpdate(folder);
+                }
+                unitOfWork.Commit();
+
+                var types = new[] { "Folder" };
+                var query = Query<IMedia>.Builder.Where(x => types.Contains(x.ContentType.Alias));
+                var result = repository.GetByQuery(query);
+
+                // Assert
+                Assert.That(result.Count(), Is.GreaterThanOrEqualTo(11));
+            }
+        }
+
         [Test]
         public void Can_Perform_GetPagedResultsByQuery_ForFirstPage_On_MediaRepository()
         {
@@ -470,7 +564,7 @@ namespace Umbraco.Tests.Persistence.Repositories
                 Assert.That(result.First().Name, Is.EqualTo("Test File"));
             }
         }
-
+        
         [Test]
         public void Can_Perform_GetPagedResultsByQuery_WithFilterMatchingAll_On_MediaRepository()
         {

src/Umbraco.Tests/Persistence/Repositories/PublicAccessRepositoryTest.cs

@@ -154,36 +154,61 @@ namespace Umbraco.Tests.Persistence.Repositories
         [Test]
         public void Get_All()
         {
-            var content = CreateTestData(3).ToArray();
+            var content = CreateTestData(30).ToArray();
 
             var provider = new PetaPocoUnitOfWorkProvider(Logger);
             var unitOfWork = provider.GetUnitOfWork();
             using (var repo = new PublicAccessRepository(unitOfWork, CacheHelper, Logger, SqlSyntax))
-            {                
-                var entry1 = new PublicAccessEntry(content[0], content[1], content[2], new[]
+            {
+                var allEntries = new List<PublicAccessEntry>();
+                for (int i = 0; i < 10; i++)
                 {
-                    new PublicAccessRule
+                    var rules = new List<PublicAccessRule>();
+                    for (int j = 0; j < 50; j++)
                     {
-                        RuleValue = "test",
-                        RuleType = "RoleName"
-                    },
-                });
-                repo.AddOrUpdate(entry1);
+                        rules.Add(new PublicAccessRule
+                        {
+                            RuleValue = "test" + j,
+                            RuleType = "RoleName" + j
+                        });
+                    }                    
+                    var entry1 = new PublicAccessEntry(content[i], content[i+1], content[i+2], rules);
+                    repo.AddOrUpdate(entry1);                    
+                    unitOfWork.Commit();
+                    allEntries.Add(entry1);
+                }
 
-                var entry2 = new PublicAccessEntry(content[1], content[0], content[2], new[]
+                //now remove a few rules from a few of the items and then add some more, this will put things 'out of order' which 
+                //we need to verify our sort order is working for the relator
+                for (int i = 0; i < allEntries.Count; i++)
                 {
-                    new PublicAccessRule
+                    //all the even ones
+                    if (i % 2 == 0)
                     {
-                        RuleValue = "test",
-                        RuleType = "RoleName"
-                    },
-                });
-                repo.AddOrUpdate(entry2);
-                
-                unitOfWork.Commit();
+                        var rules = allEntries[i].Rules.ToArray();
+                        for (int j = 0; j < rules.Length; j++)
+                        {
+                            //all the even ones
+                            if (j % 2 == 0)
+                            {
+                                allEntries[i].RemoveRule(rules[j]);
+                            }
+                        }
+                        allEntries[i].AddRule("newrule" + i, "newrule" + i);
+                        repo.AddOrUpdate(allEntries[i]);
+                        unitOfWork.Commit();
+                    }
+                }
 
                 var found = repo.GetAll().ToArray();
-                Assert.AreEqual(2, found.Count());
+                Assert.AreEqual(10, found.Length);
+
+                foreach (var publicAccessEntry in found)
+                {
+                    var matched = allEntries.First(x => x.Key == publicAccessEntry.Key);
+
+                    Assert.AreEqual(matched.Rules.Count(), publicAccessEntry.Rules.Count());
+                }
             }
         }
 

src/Umbraco.Tests/Persistence/Repositories/TemplateRepositoryTest.cs

@@ -707,6 +707,35 @@ namespace Umbraco.Tests.Persistence.Repositories
             }
         }
 
+        [Test]
+        public void Path_Is_Set_Correctly_On_Update_With_Master_Template_Removal()
+        {
+            // Arrange
+            var provider = new PetaPocoUnitOfWorkProvider(Logger);
+            var unitOfWork = provider.GetUnitOfWork();
+            using (var repository = CreateRepository(unitOfWork))
+            {
+                var parent = new Template("parent", "parent");
+                var child1 = new Template("child1", "child1");
+
+                child1.MasterTemplateAlias = parent.Alias;
+                child1.MasterTemplateId = new Lazy<int>(() => parent.Id);               
+
+                repository.AddOrUpdate(parent);
+                repository.AddOrUpdate(child1);
+                unitOfWork.Commit();
+
+                //Act
+                child1.SetMasterTemplate(null);
+                repository.AddOrUpdate(child1);
+                unitOfWork.Commit();
+
+                //Assert
+                Assert.AreEqual(string.Format("-1,{0}", child1.Id), child1.Path);
+
+            }
+        }
+
 
         [TearDown]
         public override void TearDown()

src/Umbraco.Tests/PublishedContent/LegacyExamineBackedMediaTests.cs

@@ -1,6 +1,8 @@
 using System;
 using System.Linq;
+using Lucene.Net.Analysis.Standard;
 using Lucene.Net.Documents;
+using Lucene.Net.Index;
 using Lucene.Net.Store;
 using Moq;
 using NUnit.Framework;
@@ -31,12 +33,15 @@ namespace Umbraco.Tests.PublishedContent
         [Test]
         public void Ensure_Children_Are_Sorted()
         {
-            using (var luceneDir = new RAMDirectory())
+            using (var luceneDir = new RandomIdRAMDirectory())
+            using (var writer = new IndexWriter(luceneDir, new StandardAnalyzer(Lucene.Net.Util.Version.LUCENE_29), IndexWriter.MaxFieldLength.LIMITED))
+            using (var indexer = IndexInitializer.GetUmbracoIndexer(writer))
+            using (var searcher = IndexInitializer.GetUmbracoSearcher(writer))
             {
-                var indexer = IndexInitializer.GetUmbracoIndexer(luceneDir);
+                //var indexer = IndexInitializer.GetUmbracoIndexer(luceneDir);
                 indexer.RebuildIndex();
 
-                var searcher = IndexInitializer.GetUmbracoSearcher(luceneDir);
+                //var searcher = IndexInitializer.GetUmbracoSearcher(luceneDir);
                 var result = searcher.Search(searcher.CreateSearchCriteria().Id(1111).Compile());
                 Assert.IsNotNull(result);
                 Assert.AreEqual(1, result.TotalItemCount);
@@ -60,12 +65,15 @@ namespace Umbraco.Tests.PublishedContent
         [Test]
         public void Ensure_Result_Has_All_Values()
         {
-            using (var luceneDir = new RAMDirectory())
+            using (var luceneDir = new RandomIdRAMDirectory())
+            using (var writer = new IndexWriter(luceneDir, new StandardAnalyzer(Lucene.Net.Util.Version.LUCENE_29), IndexWriter.MaxFieldLength.LIMITED))
+            using (var indexer = IndexInitializer.GetUmbracoIndexer(writer))
+            using (var searcher = IndexInitializer.GetUmbracoSearcher(writer))
             {
-                var indexer = IndexInitializer.GetUmbracoIndexer(luceneDir);
+                //var indexer = IndexInitializer.GetUmbracoIndexer(luceneDir);
                 indexer.RebuildIndex();
 
-                var searcher = IndexInitializer.GetUmbracoSearcher(luceneDir);
+                //var searcher = IndexInitializer.GetUmbracoSearcher(luceneDir);
                 var result = searcher.Search(searcher.CreateSearchCriteria().Id(1111).Compile());
                 Assert.IsNotNull(result);
                 Assert.AreEqual(1, result.TotalItemCount);

src/Umbraco.Tests/PublishedContent/PublishedMediaTests.cs

@@ -27,6 +27,7 @@ using UmbracoExamine;
 using UmbracoExamine.DataServices;
 using umbraco.BusinessLogic;
 using System.Linq;
+using Lucene.Net.Index;
 
 namespace Umbraco.Tests.PublishedContent
 {
@@ -106,11 +107,14 @@ namespace Umbraco.Tests.PublishedContent
         [Test]
         public void Ensure_Children_Sorted_With_Examine()
         {
-            using (var luceneDir = new RAMDirectory())
+            using (var luceneDir = new RandomIdRAMDirectory())
+            using (var writer = new IndexWriter(luceneDir, new StandardAnalyzer(Lucene.Net.Util.Version.LUCENE_29), IndexWriter.MaxFieldLength.LIMITED))
+            using (var indexer = IndexInitializer.GetUmbracoIndexer(writer))
+            using (var searcher = IndexInitializer.GetUmbracoSearcher(writer))
             {
-                var indexer = IndexInitializer.GetUmbracoIndexer(luceneDir);
+                //var indexer = IndexInitializer.GetUmbracoIndexer(luceneDir);
                 indexer.RebuildIndex();
-                var searcher = IndexInitializer.GetUmbracoSearcher(luceneDir);
+                //var searcher = IndexInitializer.GetUmbracoSearcher(luceneDir);
                 var ctx = GetUmbracoContext("/test", 1234);
                 var cache = new ContextualPublishedMediaCache(new PublishedMediaCache(ctx.Application, searcher, indexer), ctx);
 
@@ -135,11 +139,14 @@ namespace Umbraco.Tests.PublishedContent
         [Test]
         public void Do_Not_Find_In_Recycle_Bin()
         {
-            using (var luceneDir = new RAMDirectory())
+            using (var luceneDir = new RandomIdRAMDirectory())
+            using (var writer = new IndexWriter(luceneDir, new StandardAnalyzer(Lucene.Net.Util.Version.LUCENE_29), IndexWriter.MaxFieldLength.LIMITED))
+            using (var indexer = IndexInitializer.GetUmbracoIndexer(writer))
+            using (var searcher = IndexInitializer.GetUmbracoSearcher(writer))
             {
-                var indexer = IndexInitializer.GetUmbracoIndexer(luceneDir);
+                //var indexer = IndexInitializer.GetUmbracoIndexer(luceneDir);
                 indexer.RebuildIndex();
-                var searcher = IndexInitializer.GetUmbracoSearcher(luceneDir);
+                //var searcher = IndexInitializer.GetUmbracoSearcher(luceneDir);
                 var ctx = GetUmbracoContext("/test", 1234);
                 var cache = new ContextualPublishedMediaCache(new PublishedMediaCache(ctx.Application, searcher, indexer), ctx);
 
@@ -175,11 +182,14 @@ namespace Umbraco.Tests.PublishedContent
         [Test]
         public void Children_With_Examine()
         {
-            using (var luceneDir = new RAMDirectory())
+            using (var luceneDir = new RandomIdRAMDirectory())
+            using (var writer = new IndexWriter(luceneDir, new StandardAnalyzer(Lucene.Net.Util.Version.LUCENE_29), IndexWriter.MaxFieldLength.LIMITED))
+            using (var indexer = IndexInitializer.GetUmbracoIndexer(writer))
+            using (var searcher = IndexInitializer.GetUmbracoSearcher(writer))
             {
-                var indexer = IndexInitializer.GetUmbracoIndexer(luceneDir);
+                //var indexer = IndexInitializer.GetUmbracoIndexer(luceneDir);
                 indexer.RebuildIndex();
-                var searcher = IndexInitializer.GetUmbracoSearcher(luceneDir);
+                //var searcher = IndexInitializer.GetUmbracoSearcher(luceneDir);
                 var ctx = GetUmbracoContext("/test", 1234);
                 var cache = new ContextualPublishedMediaCache(new PublishedMediaCache(ctx.Application, searcher, indexer), ctx);
 
@@ -197,11 +207,14 @@ namespace Umbraco.Tests.PublishedContent
         [Test]
         public void Descendants_With_Examine()
         {
-            using (var luceneDir = new RAMDirectory())
+            using (var luceneDir = new RandomIdRAMDirectory())
+            using (var writer = new IndexWriter(luceneDir, new StandardAnalyzer(Lucene.Net.Util.Version.LUCENE_29), IndexWriter.MaxFieldLength.LIMITED))
+            using (var indexer = IndexInitializer.GetUmbracoIndexer(writer))
+            using (var searcher = IndexInitializer.GetUmbracoSearcher(writer))
             {
-                var indexer = IndexInitializer.GetUmbracoIndexer(luceneDir);
+                //var indexer = IndexInitializer.GetUmbracoIndexer(luceneDir);
                 indexer.RebuildIndex();
-                var searcher = IndexInitializer.GetUmbracoSearcher(luceneDir);
+                //var searcher = IndexInitializer.GetUmbracoSearcher(luceneDir);
                 var ctx = GetUmbracoContext("/test", 1234);
                 var cache = new ContextualPublishedMediaCache(new PublishedMediaCache(ctx.Application, searcher, indexer), ctx);
 
@@ -219,11 +232,14 @@ namespace Umbraco.Tests.PublishedContent
         [Test]
         public void DescendantsOrSelf_With_Examine()
         {
-            using (var luceneDir = new RAMDirectory())
+            using (var luceneDir = new RandomIdRAMDirectory())
+            using (var writer = new IndexWriter(luceneDir, new StandardAnalyzer(Lucene.Net.Util.Version.LUCENE_29), IndexWriter.MaxFieldLength.LIMITED))
+            using (var indexer = IndexInitializer.GetUmbracoIndexer(writer))
+            using (var searcher = IndexInitializer.GetUmbracoSearcher(writer))
             {
-                var indexer = IndexInitializer.GetUmbracoIndexer(luceneDir);
+                //var indexer = IndexInitializer.GetUmbracoIndexer(luceneDir);
                 indexer.RebuildIndex();
-                var searcher = IndexInitializer.GetUmbracoSearcher(luceneDir);
+                //var searcher = IndexInitializer.GetUmbracoSearcher(luceneDir);
                 var ctx = GetUmbracoContext("/test", 1234);
                 var cache = new ContextualPublishedMediaCache(new PublishedMediaCache(ctx.Application, searcher, indexer), ctx);
 
@@ -241,12 +257,15 @@ namespace Umbraco.Tests.PublishedContent
         [Test]
         public void Ancestors_With_Examine()
         {
-            using (var luceneDir = new RAMDirectory())
+            using (var luceneDir = new RandomIdRAMDirectory())
+            using (var writer = new IndexWriter(luceneDir, new StandardAnalyzer(Lucene.Net.Util.Version.LUCENE_29), IndexWriter.MaxFieldLength.LIMITED))
+            using (var indexer = IndexInitializer.GetUmbracoIndexer(writer))
+            using (var searcher = IndexInitializer.GetUmbracoSearcher(writer))
             {
-                var indexer = IndexInitializer.GetUmbracoIndexer(luceneDir);
+                //var indexer = IndexInitializer.GetUmbracoIndexer(luceneDir);
                 indexer.RebuildIndex();
                 var ctx = GetUmbracoContext("/test", 1234);
-                var searcher = IndexInitializer.GetUmbracoSearcher(luceneDir);
+                //var searcher = IndexInitializer.GetUmbracoSearcher(luceneDir);
                 var cache = new ContextualPublishedMediaCache(new PublishedMediaCache(ctx.Application, searcher, indexer), ctx);
 
                 //we are using the media.xml media to test the examine results implementation, see the media.xml file in the ExamineHelpers namespace
@@ -260,12 +279,15 @@ namespace Umbraco.Tests.PublishedContent
         [Test]
         public void AncestorsOrSelf_With_Examine()
         {
-            using (var luceneDir = new RAMDirectory())
+            using (var luceneDir = new RandomIdRAMDirectory())
+            using (var writer = new IndexWriter(luceneDir, new StandardAnalyzer(Lucene.Net.Util.Version.LUCENE_29), IndexWriter.MaxFieldLength.LIMITED))
+            using (var indexer = IndexInitializer.GetUmbracoIndexer(writer))
+            using (var searcher = IndexInitializer.GetUmbracoSearcher(writer))
             {
-                var indexer = IndexInitializer.GetUmbracoIndexer(luceneDir);
+                //var indexer = IndexInitializer.GetUmbracoIndexer(luceneDir);
                 indexer.RebuildIndex();
                 var ctx = GetUmbracoContext("/test", 1234);
-                var searcher = IndexInitializer.GetUmbracoSearcher(luceneDir);
+                //var searcher = IndexInitializer.GetUmbracoSearcher(luceneDir);
                 var cache = new ContextualPublishedMediaCache(new PublishedMediaCache(ctx.Application, searcher, indexer), ctx);
 
                 //we are using the media.xml media to test the examine results implementation, see the media.xml file in the ExamineHelpers namespace

src/Umbraco.Tests/Routing/NiceUrlProviderTests.cs

@@ -32,7 +32,7 @@ namespace Umbraco.Tests.Routing
         }
 
 		/// <summary>
-		/// This checks that when we retrieve a NiceUrl for multiple items that there are no issues with cache overlap 
+		/// This checks that when we retrieve a NiceUrl for multiple items that there are no issues with cache overlap
 		/// and that they are all cached correctly.
         /// </summary>
 		[Test]
@@ -71,25 +71,19 @@ namespace Umbraco.Tests.Routing
 
             var cache = routingContext.UmbracoContext.ContentCache.InnerCache as PublishedContentCache;
             if (cache == null) throw new Exception("Unsupported IPublishedContentCache, only the Xml one is supported.");
+
             var cachedRoutes = cache.RoutesCache.GetCachedRoutes();
-			Assert.AreEqual(8, cachedRoutes.Count);
+            Assert.AreEqual(8, cachedRoutes.Count);
 
-			foreach (var sample in samples)
-			{
-				Assert.IsTrue(cachedRoutes.ContainsKey(sample.Key));
-				Assert.AreEqual(sample.Value, cachedRoutes[sample.Key]);
-			}
+            foreach (var sample in samples)
+            {
+                Assert.IsTrue(cachedRoutes.ContainsKey(sample.Key));
+                Assert.AreEqual(sample.Value, cachedRoutes[sample.Key]);
+            }
 
-			var cachedIds = cache.RoutesCache.GetCachedIds();
-			Assert.AreEqual(8, cachedIds.Count);
-
-			foreach (var sample in samples)
-			{
-				var key = sample.Value;
-				Assert.IsTrue(cachedIds.ContainsKey(key));
-				Assert.AreEqual(sample.Key, cachedIds[key]);
-			}
-		}
+            var cachedIds = cache.RoutesCache.GetCachedIds();
+            Assert.AreEqual(0, cachedIds.Count);
+        }
 
 		// test hideTopLevelNodeFromPath false
 		[TestCase(1046, "/home/")]
@@ -147,10 +141,10 @@ namespace Umbraco.Tests.Routing
 
             var routingContext = GetRoutingContext("http://example.com/test", 1111, umbracoSettings: _umbracoSettings);
 
-            
+
 
 			Assert.AreEqual("/home/sub1/custom-sub-1/", routingContext.UrlProvider.GetUrl(1177));
-            
+
             requestMock.Setup(x => x.UseDomainPrefixes).Returns(true);
 			Assert.AreEqual("http://example.com/home/sub1/custom-sub-1/", routingContext.UrlProvider.GetUrl(1177));
 
@@ -173,14 +167,14 @@ namespace Umbraco.Tests.Routing
 
 			Assert.AreEqual("#", routingContext.UrlProvider.GetUrl(999999));
 
-            requestMock.Setup(x => x.UseDomainPrefixes).Returns(true);            
-            
+            requestMock.Setup(x => x.UseDomainPrefixes).Returns(true);
+
             Assert.AreEqual("#", routingContext.UrlProvider.GetUrl(999999));
 
             requestMock.Setup(x => x.UseDomainPrefixes).Returns(false);
 
 			routingContext.UrlProvider.Mode = UrlProviderMode.Absolute;
-			
+
             Assert.AreEqual("#", routingContext.UrlProvider.GetUrl(999999));
 		}
 	}

src/Umbraco.Tests/Routing/NiceUrlRoutesTests.cs

@@ -0,0 +1,325 @@
+using System;
+using NUnit.Framework;
+using Umbraco.Core.Configuration.UmbracoSettings;
+using Umbraco.Tests.TestHelpers;
+using Umbraco.Web.PublishedCache.XmlPublishedCache;
+using Umbraco.Web.Routing;
+
+namespace Umbraco.Tests.Routing
+{
+    // purpose: test the values returned by PublishedContentCache.GetRouteById
+    // and .GetByRoute (no caching at all, just routing nice urls) including all
+    // the quirks due to hideTopLevelFromPath and backward compatibility.
+
+    [DatabaseTestBehavior(DatabaseBehavior.NewDbFileAndSchemaPerFixture)]
+    [TestFixture]
+    public class NiceUrlRoutesTests : BaseRoutingTest
+    {
+        #region Test Setup
+
+        protected override void FreezeResolution()
+        {
+            SiteDomainHelperResolver.Current = new SiteDomainHelperResolver(new SiteDomainHelper());
+
+            base.FreezeResolution();
+        }
+
+        private IUmbracoSettingsSection _umbracoSettings;
+
+        public override void Initialize()
+        {
+            base.Initialize();
+
+            //generate new mock settings and assign so we can configure in individual tests
+            _umbracoSettings = SettingsForTests.GenerateMockSettings();
+            SettingsForTests.ConfigureSettings(_umbracoSettings);
+        }
+
+        protected override string GetXmlContent(int templateId)
+        {
+            return @"<?xml version=""1.0"" encoding=""utf-8""?>
+<!DOCTYPE root[
+<!ELEMENT Doc ANY>
+<!ATTLIST Doc id ID #REQUIRED>
+]>
+<root id=""-1"">
+	<Doc id=""1000"" parentID=""-1"" level=""1"" path=""-1,1000"" nodeName=""A"" urlName=""a"" sortOrder=""1"" writerID=""0"" creatorID=""0"" nodeType=""1044"" template=""" + templateId + @""" createDate=""2012-06-12T14:13:17"" updateDate=""2012-07-20T18:50:43"" writerName=""admin"" creatorName=""admin"" isDoc="""">
+		<Doc id=""1001"" parentID=""1000"" level=""2"" path=""-1,1000,1001"" nodeName=""B"" urlName=""b"" sortOrder=""1"" writerID=""0"" creatorID=""0"" nodeType=""1044"" template=""" + templateId + @""" createDate=""2012-07-20T18:06:45"" updateDate=""2012-07-20T19:07:31"" writerName=""admin"" creatorName=""admin"" isDoc="""">
+		    <Doc id=""1002"" parentID=""1001"" level=""3"" path=""-1,1000,1001,1002"" nodeName=""C"" urlName=""c"" sortOrder=""1"" writerID=""0"" creatorID=""0"" nodeType=""1044"" template=""" + templateId + @""" createDate=""2012-07-20T18:06:45"" updateDate=""2012-07-20T19:07:31"" writerName=""admin"" creatorName=""admin"" isDoc="""">
+		        <Doc id=""1003"" parentID=""1002"" level=""4"" path=""-1,1000,1001,1002,1003"" nodeName=""D"" urlName=""d"" sortOrder=""1"" writerID=""0"" creatorID=""0"" nodeType=""1044"" template=""" + templateId + @""" createDate=""2012-07-20T18:06:45"" updateDate=""2012-07-20T19:07:31"" writerName=""admin"" creatorName=""admin"" isDoc="""">
+                </Doc>
+            </Doc>
+        </Doc>
+    </Doc>
+	<Doc id=""2000"" parentID=""-1"" level=""1"" path=""-1,2000"" nodeName=""X"" urlName=""x"" sortOrder=""1"" writerID=""0"" creatorID=""0"" nodeType=""1044"" template=""" + templateId + @""" createDate=""2012-06-12T14:13:17"" updateDate=""2012-07-20T18:50:43"" writerName=""admin"" creatorName=""admin"" isDoc="""">
+	    <Doc id=""2001"" parentID=""2000"" level=""2"" path=""-1,2000,2001"" nodeName=""Y"" urlName=""y"" sortOrder=""1"" writerID=""0"" creatorID=""0"" nodeType=""1044"" template=""" + templateId + @""" createDate=""2012-06-12T14:13:17"" updateDate=""2012-07-20T18:50:43"" writerName=""admin"" creatorName=""admin"" isDoc="""">
+	        <Doc id=""2002"" parentID=""2001"" level=""3"" path=""-1,2000,2001,2002"" nodeName=""Z"" urlName=""z"" sortOrder=""1"" writerID=""0"" creatorID=""0"" nodeType=""1044"" template=""" + templateId + @""" createDate=""2012-06-12T14:13:17"" updateDate=""2012-07-20T18:50:43"" writerName=""admin"" creatorName=""admin"" isDoc="""">
+            </Doc>
+        </Doc>
+	    <Doc id=""2003"" parentID=""2000"" level=""2"" path=""-1,2000,2003"" nodeName=""A"" urlName=""a"" sortOrder=""2"" writerID=""0"" creatorID=""0"" nodeType=""1044"" template=""" + templateId + @""" createDate=""2012-06-12T14:13:17"" updateDate=""2012-07-20T18:50:43"" writerName=""admin"" creatorName=""admin"" isDoc="""">
+        </Doc>
+	    <Doc id=""2004"" parentID=""2000"" level=""2"" path=""-1,2000,2004"" nodeName=""B"" urlName=""b"" sortOrder=""3"" writerID=""0"" creatorID=""0"" nodeType=""1044"" template=""" + templateId + @""" createDate=""2012-06-12T14:13:17"" updateDate=""2012-07-20T18:50:43"" writerName=""admin"" creatorName=""admin"" isDoc="""">
+	        <Doc id=""2005"" parentID=""2004"" level=""3"" path=""-1,2000,2004,2005"" nodeName=""C"" urlName=""c"" sortOrder=""1"" writerID=""0"" creatorID=""0"" nodeType=""1044"" template=""" + templateId + @""" createDate=""2012-06-12T14:13:17"" updateDate=""2012-07-20T18:50:43"" writerName=""admin"" creatorName=""admin"" isDoc="""">
+            </Doc>
+	        <Doc id=""2006"" parentID=""2004"" level=""3"" path=""-1,2000,2004,2006"" nodeName=""E"" urlName=""e"" sortOrder=""1"" writerID=""0"" creatorID=""0"" nodeType=""1044"" template=""" + templateId + @""" createDate=""2012-06-12T14:13:17"" updateDate=""2012-07-20T18:50:43"" writerName=""admin"" creatorName=""admin"" isDoc="""">
+            </Doc>
+        </Doc>
+    </Doc>
+</root>";
+        }
+
+        #endregion
+
+        /*
+         * Just so it's documented somewhere, as of jan. 2017, routes obey the following pseudo-code:
+
+GetByRoute(route, hide = null):
+
+	route is "[id]/[path]"
+
+	hide = hide ?? global.hide
+
+	root = id ? node(id) : document
+
+	content = cached(route) ?? DetermineIdByRoute(route, hide)
+
+	# route is "1234/path/to/content", finds "content"
+	# but if there is domain 5678 on "to", the *true* route of "content" is "5678/content"
+	# so although the route does match, we don't cache it
+	# there are not other reason not to cache it
+
+	if content and no domain between root and content:
+		cache route (as trusted)
+
+	return content
+
+
+DetermineIdByRoute(route, hide):
+
+	route is "[id]/[path]"
+
+	try return NavigateRoute(id ?? 0, path, hide:hide)
+	return null
+
+
+NavigateRoute(id, path, hide):
+
+	if path:
+		if id:
+			start = node(id)
+		else:
+			start = document
+
+		# 'navigate ... from ...' uses lowest sortOrder in case of collision
+
+		if hide and ![id]:
+			# if hiding, then for "/foo" we want to look for "/[any]/foo"
+			for each child of start:
+				try return navigate path from child
+
+			# but if it fails, we also want to try "/foo"
+			# fail now if more than one part eg "/foo/bar"
+			if path is "/[any]/...":
+				fail
+
+		try return navigate path from start
+
+	else:
+		if id:
+			return node(id)
+		else:
+			return root node with lowest sortOrder
+
+
+GetRouteById(id):
+
+
+    route = cached(id)
+	if route:
+		return route
+
+	# never cache the route, it may be colliding
+
+	route = DetermineRouteById(id)
+    if route:
+        cache route (as not trusted)
+
+    return route
+
+
+
+DetermineRouteById(id):
+
+
+    node = node(id)
+
+    walk up from node to domain or root, assemble parts = url segments
+
+	if !domain and global.hide:
+		if id.parent:
+			# got /top/[path]content, can remove /top
+			remove top part
+		else:
+			# got /content, should remove only if it is the
+			# node with lowest sort order
+			root = root node with lowest sortOrder
+			if root == node:
+				remove top part
+
+    compose path from parts
+    route = assemble "[domain.id]/[path]"
+	return route
+
+         */
+
+        /*
+         * The Xml structure for the following tests is:
+         *
+         * root
+         *   A 1000
+         *     B 1001
+         *       C 1002
+         *         D 1003
+         *   X 2000
+         *     Y 2001
+         *       Z 2002
+         *     A 2003
+         *     B 2004
+         *       C 2005
+         *       E 2006
+         *
+         */
+
+        [TestCase(1000, false, "/a")]
+        [TestCase(1001, false, "/a/b")]
+        [TestCase(1002, false, "/a/b/c")]
+        [TestCase(1003, false, "/a/b/c/d")]
+        [TestCase(2000, false, "/x")]
+        [TestCase(2001, false, "/x/y")]
+        [TestCase(2002, false, "/x/y/z")]
+        [TestCase(2003, false, "/x/a")]
+        [TestCase(2004, false, "/x/b")]
+        [TestCase(2005, false, "/x/b/c")]
+        [TestCase(2006, false, "/x/b/e")]
+        [TestCase(1000, true, "/")]
+        [TestCase(1001, true, "/b")]
+        [TestCase(1002, true, "/b/c")]
+        [TestCase(1003, true, "/b/c/d")]
+        [TestCase(2000, true, "/x")]
+        [TestCase(2001, true, "/y")]
+        [TestCase(2002, true, "/y/z")]
+        [TestCase(2003, true, "/a")]
+        [TestCase(2004, true, "/b")] // collision!
+        [TestCase(2005, true, "/b/c")] // collision!
+        [TestCase(2006, true, "/b/e")] // risky!
+        public void GetRouteById(int id, bool hide, string expected)
+        {
+            var umbracoContext = GetUmbracoContext("/test", 0);
+            var cache = umbracoContext.ContentCache.InnerCache as PublishedContentCache;
+            if (cache == null) throw new Exception("Unsupported IPublishedContentCache, only the Xml one is supported.");
+
+            SettingsForTests.HideTopLevelNodeFromPath = hide;
+
+            const bool preview = true; // make sure we don't cache
+            var route = cache.GetRouteById(umbracoContext, preview, id);
+            Assert.AreEqual(expected, route);
+        }
+
+        [Test]
+        public void GetRouteByIdCache()
+        {
+            var umbracoContext = GetUmbracoContext("/test", 0);
+            var cache = umbracoContext.ContentCache.InnerCache as PublishedContentCache;
+            if (cache == null) throw new Exception("Unsupported IPublishedContentCache, only the Xml one is supported.");
+
+            SettingsForTests.HideTopLevelNodeFromPath = false;
+
+            // make sure we cache
+            PublishedContentCache.UnitTesting = false;
+            const bool preview = false;
+
+            var route = cache.GetRouteById(umbracoContext, preview, 1000);
+            Assert.AreEqual("/a", route);
+
+            // GetRouteById registers a non-trusted route, which is cached for
+            // id -> route queries (fast GetUrl) but *not* for route -> id
+            // queries (safe inbound routing)
+
+            var cachedRoutes = cache.RoutesCache.GetCachedRoutes();
+            Assert.AreEqual(1, cachedRoutes.Count);
+            Assert.IsTrue(cachedRoutes.ContainsKey(1000));
+            Assert.AreEqual("/a", cachedRoutes[1000]);
+
+            var cachedIds = cache.RoutesCache.GetCachedIds();
+            Assert.AreEqual(0, cachedIds.Count);
+        }
+
+        [TestCase("/", false, 1000)]
+        [TestCase("/a", false, 1000)] // yes!
+        [TestCase("/a/b", false, 1001)]
+        [TestCase("/a/b/c", false, 1002)]
+        [TestCase("/a/b/c/d", false, 1003)]
+        [TestCase("/x", false, 2000)]
+        [TestCase("/", true, 1000)]
+        [TestCase("/a", true, 2003)]
+        [TestCase("/a/b", true, -1)]
+        [TestCase("/x", true, 2000)] // oops!
+        [TestCase("/x/y", true, -1)] // yes!
+        [TestCase("/y", true, 2001)]
+        [TestCase("/y/z", true, 2002)]
+        [TestCase("/b", true, 1001)] // (hence the 2004 collision)
+        [TestCase("/b/c", true, 1002)] // (hence the 2005 collision)
+        public void GetByRoute(string route, bool hide, int expected)
+        {
+            var umbracoContext = GetUmbracoContext("/test", 0);
+            var cache = umbracoContext.ContentCache.InnerCache as PublishedContentCache;
+            if (cache == null) throw new Exception("Unsupported IPublishedContentCache, only the Xml one is supported.");
+
+            SettingsForTests.HideTopLevelNodeFromPath = hide;
+
+            const bool preview = true; // make sure we don't cache
+            var content = cache.GetByRoute(umbracoContext, preview, route);
+            if (expected < 0)
+            {
+                Assert.IsNull(content);
+            }
+            else
+            {
+                Assert.IsNotNull(content);
+                Assert.AreEqual(expected, content.Id);
+            }
+        }
+
+        [Test]
+        public void GetByRouteCache()
+        {
+            var umbracoContext = GetUmbracoContext("/test", 0);
+            var cache = umbracoContext.ContentCache.InnerCache as PublishedContentCache;
+            if (cache == null) throw new Exception("Unsupported IPublishedContentCache, only the Xml one is supported.");
+
+            SettingsForTests.HideTopLevelNodeFromPath = false;
+
+            // make sure we cache
+            PublishedContentCache.UnitTesting = false;
+            const bool preview = false;
+
+            var content = cache.GetByRoute(umbracoContext, preview, "/a/b/c");
+            Assert.IsNotNull(content);
+            Assert.AreEqual(1002, content.Id);
+
+            // GetByRoute registers a trusted route, which is cached both for
+            // id -> route queries (fast GetUrl) and for route -> id queries
+            // (fast inbound routing)
+
+            var cachedRoutes = cache.RoutesCache.GetCachedRoutes();
+            Assert.AreEqual(1, cachedRoutes.Count);
+            Assert.IsTrue(cachedRoutes.ContainsKey(1002));
+            Assert.AreEqual("/a/b/c", cachedRoutes[1002]);
+
+            var cachedIds = cache.RoutesCache.GetCachedIds();
+            Assert.AreEqual(1, cachedIds.Count);
+            Assert.IsTrue(cachedIds.ContainsKey("/a/b/c"));
+            Assert.AreEqual(1002, cachedIds["/a/b/c"]);
+        }
+    }
+}

src/Umbraco.Tests/Routing/NiceUrlsProviderWithDomainsTests.cs

@@ -79,7 +79,7 @@ namespace Umbraco.Tests.Routing
         protected override string GetXmlContent(int templateId)
         {
             return @"<?xml version=""1.0"" encoding=""utf-8""?>
-<!DOCTYPE root[ 
+<!DOCTYPE root[
 <!ELEMENT Doc ANY>
 <!ATTLIST Doc id ID #REQUIRED>
 ]>
@@ -302,11 +302,12 @@ namespace Umbraco.Tests.Routing
 
             var cache = routingContext.UmbracoContext.ContentCache.InnerCache as PublishedContentCache;
             if (cache == null) throw new Exception("Unsupported IPublishedContentCache, only the Xml one is supported.");
+
             var cachedRoutes = cache.RoutesCache.GetCachedRoutes();
             Assert.AreEqual(7, cachedRoutes.Count);
 
             var cachedIds = cache.RoutesCache.GetCachedIds();
-            Assert.AreEqual(7, cachedIds.Count);
+            Assert.AreEqual(0, cachedIds.Count);
 
             CheckRoute(cachedRoutes, cachedIds, 1001, "1001/");
             CheckRoute(cachedRoutes, cachedIds, 10011, "10011/");
@@ -328,12 +329,11 @@ namespace Umbraco.Tests.Routing
             Assert.AreEqual("http://domain1.com/fr/1001-2-1/", routingContext.UrlProvider.GetUrl(100121, new Uri("http://domain2.com"), false));
         }
 
-        void CheckRoute(IDictionary<int, string> routes, IDictionary<string, int> ids, int id, string route)
+        private static void CheckRoute(IDictionary<int, string> routes, IDictionary<string, int> ids, int id, string route)
         {
             Assert.IsTrue(routes.ContainsKey(id));
             Assert.AreEqual(route, routes[id]);
-            Assert.IsTrue(ids.ContainsKey(route));
-            Assert.AreEqual(id, ids[route]);
+            Assert.IsFalse(ids.ContainsKey(route));
         }
 
         [Test]

src/Umbraco.Tests/Routing/UrlsWithNestedDomains.cs

@@ -26,7 +26,7 @@ namespace Umbraco.Tests.Routing
 		public void DoNotPolluteCache()
 		{
             SettingsForTests.UseDirectoryUrls = true;
-            SettingsForTests.HideTopLevelNodeFromPath = false; // ignored w/domains            
+            SettingsForTests.HideTopLevelNodeFromPath = false; // ignored w/domains
 
             var settings = SettingsForTests.GenerateMockSettings();
             var request = Mock.Get(settings.RequestHandler);
@@ -36,7 +36,7 @@ namespace Umbraco.Tests.Routing
 
 			RoutingContext routingContext;
 			string url = "http://domain1.com/1001-1/1001-1-1";
-			
+
 			// get the nice url for 100111
 		    routingContext = GetRoutingContext(url, 9999, umbracoSettings: settings);
 			Assert.AreEqual("http://domain2.com/1001-1-1/", routingContext.UrlProvider.GetUrl(100111, true));
@@ -89,7 +89,7 @@ namespace Umbraco.Tests.Routing
 		protected override string GetXmlContent(int templateId)
 		{
 			return @"<?xml version=""1.0"" encoding=""utf-8""?>
-<!DOCTYPE root[ 
+<!DOCTYPE root[
 <!ELEMENT Doc ANY>
 <!ATTLIST Doc id ID #REQUIRED>
 ]>

src/Umbraco.Tests/Services/ContentServiceTests.cs

@@ -35,18 +35,68 @@ namespace Umbraco.Tests.Services
         [SetUp]
         public override void Initialize()
         {
-	        base.Initialize();
+            base.Initialize();
+
+            VersionableRepositoryBase<int, IContent>.ThrowOnWarning = true;
+        }
+
+        [TearDown]
+        public override void TearDown()
+        {
+            VersionableRepositoryBase<int, IContent>.ThrowOnWarning = false;
+
+            base.TearDown();
         }
-		
-		[TearDown]
-		public override void TearDown()
-		{   
-      		base.TearDown();
-		}
 
         //TODO Add test to verify there is only ONE newest document/content in cmsDocument table after updating.
         //TODO Add test to delete specific version (with and without deleting prior versions) and versions by date.
 
+
+        /// <summary>
+        /// Ensures that we don't unpublish all nodes when a node is deleted that has an invalid path of -1
+        /// Note: it is actually the MoveToRecycleBin happening on the initial deletion of a node through the UI
+        /// that causes the issue.
+        /// Regression test: http://issues.umbraco.org/issue/U4-9336
+        /// </summary>
+        [Test]
+        public void Moving_Node_To_Recycle_Bin_With_Invalid_Path()
+        {
+            var contentService = ServiceContext.ContentService;
+            var root = ServiceContext.ContentService.GetById(NodeDto.NodeIdSeed + 1);
+            Assert.IsTrue(contentService.PublishWithStatus(root).Success);
+            var content = contentService.CreateContentWithIdentity("Test", -1, "umbTextpage", 0);
+            Assert.IsTrue(contentService.PublishWithStatus(content).Success);
+            var hierarchy = CreateContentHierarchy().OrderBy(x => x.Level).ToArray();
+            contentService.Save(hierarchy, 0);
+            foreach (var c in hierarchy)
+            {
+                Assert.IsTrue(contentService.PublishWithStatus(c).Success);
+            }
+
+            //now make the data corrupted :/
+            DatabaseContext.Database.Execute("UPDATE umbracoNode SET path = '-1' WHERE id = @id", new {id = content.Id});
+
+            //re-get with the corrupt path
+            content = contentService.GetById(content.Id);
+
+            // here we get all descendants by the path of the node being moved to bin, and unpublish all of them.
+            // since the path is invalid, there's logic in here to fix that if it's possible and re-persist the entity.
+            var moveResult = ServiceContext.ContentService.WithResult().MoveToRecycleBin(content);
+
+            Assert.IsTrue(moveResult.Success);
+
+            //re-get with the fixed/moved path 
+            content = contentService.GetById(content.Id);
+
+            Assert.AreEqual("-1,-20," + content.Id, content.Path);
+
+            //re-get
+            hierarchy = contentService.GetByIds(hierarchy.Select(x => x.Id).ToArray()).OrderBy(x => x.Level).ToArray();
+
+            Assert.That(hierarchy.All(c => c.Trashed == false), Is.True);
+            Assert.That(hierarchy.All(c => c.Path.StartsWith("-1,-20") == false), Is.True);
+        }
+
         [Test]
         public void Remove_Scheduled_Publishing_Date()
         {
@@ -104,7 +154,7 @@ namespace Umbraco.Tests.Services
                 results.Add(contentService.CreateContentWithIdentity("Test", -1, "umbTextpage", 0));
             }
 
-            var sortedGet = contentService.GetByIds(new[] {results[10].Id, results[5].Id, results[12].Id}).ToArray();
+            var sortedGet = contentService.GetByIds(new[] { results[10].Id, results[5].Id, results[12].Id }).ToArray();
 
             // Assert
             Assert.AreEqual(sortedGet[0].Id, results[10].Id);
@@ -121,7 +171,7 @@ namespace Umbraco.Tests.Services
             // Act
             for (int i = 0; i < 20; i++)
             {
-                contentService.CreateContentWithIdentity("Test", -1, "umbTextpage", 0);    
+                contentService.CreateContentWithIdentity("Test", -1, "umbTextpage", 0);
             }
 
             // Assert
@@ -230,7 +280,7 @@ namespace Umbraco.Tests.Services
             // Assert
 
             //there should be no tags for this entity
-            var tags = tagService.GetTagsForEntity(content1.Id);            
+            var tags = tagService.GetTagsForEntity(content1.Id);
             Assert.AreEqual(0, tags.Count());
 
             //these tags should still be returned since they still have actively published content assigned
@@ -265,7 +315,7 @@ namespace Umbraco.Tests.Services
             contentService.MoveToRecycleBin(content2);
 
             // Assert
-            
+
             //there should be no exposed content tags now that nothing is published.
             var allTags = tagService.GetAllContentTags();
             Assert.AreEqual(0, allTags.Count());
@@ -395,7 +445,7 @@ namespace Umbraco.Tests.Services
                 new PropertyType("test", DataTypeDatabaseType.Ntext, "tags")
                 {
                     DataTypeDefinitionId = 1041
-                });            
+                });
             contentTypeService.Save(contentType);
             contentType.AllowedContentTypes = new[] { new ContentTypeSort(new Lazy<int>(() => contentType.Id), 0, contentType.Alias) };
 
@@ -410,7 +460,7 @@ namespace Umbraco.Tests.Services
             var child2 = MockedContent.CreateSimpleContent(contentType, "child 2 content", content.Id);
             child2.SetTags("tags", new[] { "hello2", "world2" }, true);
             contentService.Save(child2);
-            
+
             // Act
             contentService.PublishWithChildrenWithStatus(content, includeUnpublished: true);
 
@@ -461,34 +511,34 @@ namespace Umbraco.Tests.Services
                 new { nodeId = content.Id, propTypeId = propertyTypeId }));
         }
 
-	    [Test]
-	    public void Can_Replace_Tag_Data_To_Published_Content()
-	    {
+        [Test]
+        public void Can_Replace_Tag_Data_To_Published_Content()
+        {
             //Arrange
             var contentService = ServiceContext.ContentService;
             var contentTypeService = ServiceContext.ContentTypeService;
             var contentType = MockedContentTypes.CreateSimpleContentType("umbMandatory", "Mandatory Doc Type", true);
             contentType.PropertyGroups.First().PropertyTypes.Add(
                 new PropertyType("test", DataTypeDatabaseType.Ntext, "tags")
-                    {
-                        DataTypeDefinitionId = 1041
-                    });            
+                {
+                    DataTypeDefinitionId = 1041
+                });
             contentTypeService.Save(contentType);
 
             var content = MockedContent.CreateSimpleContent(contentType, "Tagged content", -1);
-	        
-            
+
+
             // Act
             content.SetTags("tags", new[] { "hello", "world", "some", "tags" }, true);
             contentService.Publish(content);
 
             // Assert
             Assert.AreEqual(4, content.Properties["tags"].Value.ToString().Split(',').Distinct().Count());
-	        var propertyTypeId = contentType.PropertyTypes.Single(x => x.Alias == "tags").Id;
-	        Assert.AreEqual(4, DatabaseContext.Database.ExecuteScalar<int>(
-	            "SELECT COUNT(*) FROM cmsTagRelationship WHERE nodeId=@nodeId AND propertyTypeId=@propTypeId",
-	            new {nodeId = content.Id, propTypeId = propertyTypeId}));
-	    }
+            var propertyTypeId = contentType.PropertyTypes.Single(x => x.Alias == "tags").Id;
+            Assert.AreEqual(4, DatabaseContext.Database.ExecuteScalar<int>(
+                "SELECT COUNT(*) FROM cmsTagRelationship WHERE nodeId=@nodeId AND propertyTypeId=@propTypeId",
+                new { nodeId = content.Id, propTypeId = propertyTypeId }));
+        }
 
         [Test]
         public void Can_Append_Tag_Data_To_Published_Content()
@@ -506,7 +556,7 @@ namespace Umbraco.Tests.Services
             var content = MockedContent.CreateSimpleContent(contentType, "Tagged content", -1);
             content.SetTags("tags", new[] { "hello", "world", "some", "tags" }, true);
             contentService.PublishWithStatus(content);
-            
+
             // Act
             content.SetTags("tags", new[] { "another", "world" }, false);
             contentService.PublishWithStatus(content);
@@ -548,9 +598,9 @@ namespace Umbraco.Tests.Services
                 new { nodeId = content.Id, propTypeId = propertyTypeId }));
         }
 
-	    [Test]
-	    public void Can_Remove_Property_Type()
-	    {
+        [Test]
+        public void Can_Remove_Property_Type()
+        {
             // Arrange
             var contentService = ServiceContext.ContentService;
 
@@ -560,9 +610,9 @@ namespace Umbraco.Tests.Services
             // Assert
             Assert.That(content, Is.Not.Null);
             Assert.That(content.HasIdentity, Is.False);
-	    }
+        }
 
-	    [Test]
+        [Test]
         public void Can_Create_Content()
         {
             // Arrange
@@ -575,7 +625,7 @@ namespace Umbraco.Tests.Services
             Assert.That(content, Is.Not.Null);
             Assert.That(content.HasIdentity, Is.False);
         }
-        
+
         [Test]
         public void Can_Create_Content_Without_Explicitly_Set_User()
         {
@@ -595,12 +645,12 @@ namespace Umbraco.Tests.Services
         public void Can_Save_New_Content_With_Explicit_User()
         {
             var user = new User(ServiceContext.UserService.GetUserTypeByAlias("admin"))
-                {
-                    Name = "Test",
-                    Email = "test@test.com",
-                    Username = "test",
+            {
+                Name = "Test",
+                Email = "test@test.com",
+                Username = "test",
                 RawPasswordValue = "test"
-                };
+            };
             ServiceContext.UserService.Save(user);
             var content = new Content("Test", -1, ServiceContext.ContentTypeService.GetContentType("umbTextpage"));
 
@@ -622,6 +672,17 @@ namespace Umbraco.Tests.Services
             Assert.Throws<Exception>(() => contentService.CreateContent("Test", -1, "umbAliasDoesntExist"));
         }
 
+        [Test]
+        public void Cannot_Save_Content_With_Empty_Name()
+        {
+            // Arrange
+            var contentService = ServiceContext.ContentService;
+            var content = new Content(string.Empty, -1, ServiceContext.ContentTypeService.GetContentType("umbTextpage"));
+
+            // Act & Assert
+            Assert.Throws<ArgumentException>(() => contentService.Save(content));
+        }
+
         [Test]
         public void Can_Get_Content_By_Id()
         {
@@ -705,16 +766,26 @@ namespace Umbraco.Tests.Services
             var parent = ServiceContext.ContentService.GetById(NodeDto.NodeIdSeed + 1);
             ServiceContext.ContentService.Publish(parent);//Publishing root, so Text Page 2 can be updated.
             var subpage2 = contentService.GetById(NodeDto.NodeIdSeed + 3);
+
             subpage2.Name = "Text Page 2 Updated";
             subpage2.SetValue("author", "Jane Doe");
             contentService.SaveAndPublishWithStatus(subpage2, 0);//NOTE New versions are only added between publish-state-changed, so publishing to ensure addition version.
 
+            subpage2.Name = "Text Page 2 Updated again";
+            subpage2.SetValue("author", "Bob Hope");
+            contentService.SaveAndPublishWithStatus(subpage2, 0);//NOTE New versions are only added between publish-state-changed, so publishing to ensure addition version.
+
             // Act
             var versions = contentService.GetVersions(NodeDto.NodeIdSeed + 3).ToList();
 
             // Assert
             Assert.That(versions.Any(), Is.True);
             Assert.That(versions.Count(), Is.GreaterThanOrEqualTo(2));
+
+            //ensure each version contains the correct property values
+            Assert.AreEqual("John Doe", versions[2].GetValue("author"));
+            Assert.AreEqual("Jane Doe", versions[1].GetValue("author"));
+            Assert.AreEqual("Bob Hope", versions[0].GetValue("author"));
         }
 
         [Test]
@@ -857,14 +928,14 @@ namespace Umbraco.Tests.Services
             var provider = new PetaPocoUnitOfWorkProvider(Logger);
             using (var uow = provider.GetUnitOfWork())
             {
-                uow.Database.TruncateTable("cmsContentXml");    
+                uow.Database.TruncateTable("cmsContentXml");
             }
-            
+
 
             //for this test we are also going to save a revision for a content item that is not published, this is to ensure
             //that it's published version still makes it into the cmsContentXml table!
             contentService.Save(allContent.Last());
-            
+
             // Act
             var published = contentService.RePublishAll(0);
 
@@ -872,7 +943,7 @@ namespace Umbraco.Tests.Services
             Assert.IsTrue(published);
             using (var uow = provider.GetUnitOfWork())
             {
-                Assert.AreEqual(allContent.Count(), uow.Database.ExecuteScalar<int>("select count(*) from cmsContentXml"));    
+                Assert.AreEqual(allContent.Count(), uow.Database.ExecuteScalar<int>("select count(*) from cmsContentXml"));
             }
         }
 
@@ -889,7 +960,7 @@ namespace Umbraco.Tests.Services
             var allContent = rootContent.Concat(rootContent.SelectMany(x => x.Descendants())).ToList();
             //for testing we need to clear out the contentXml table so we can see if it worked
             var provider = new PetaPocoUnitOfWorkProvider(Logger);
-            
+
             using (var uow = provider.GetUnitOfWork())
             {
                 uow.Database.TruncateTable("cmsContentXml");
@@ -899,7 +970,7 @@ namespace Umbraco.Tests.Services
             contentService.Save(allContent.Last());
 
             // Act
-            contentService.RePublishAll(new int[]{allContent.Last().ContentTypeId});
+            contentService.RePublishAll(new int[] { allContent.Last().ContentTypeId });
 
             // Assert            
             using (var uow = provider.GetUnitOfWork())
@@ -1085,7 +1156,7 @@ namespace Umbraco.Tests.Services
         {
             // Arrange
             var contentService = ServiceContext.ContentService;
-            var content = contentService.CreateContent("Home US", - 1, "umbTextpage", 0);
+            var content = contentService.CreateContent("Home US", -1, "umbTextpage", 0);
             content.SetValue("author", "Barack Obama");
 
             // Act
@@ -1116,7 +1187,7 @@ namespace Umbraco.Tests.Services
             var savedVersion = content.Version;
 
             // Act
-            var publishedDescendants = ((ContentService) contentService).GetPublishedDescendants(root).ToList();
+            var publishedDescendants = ((ContentService)contentService).GetPublishedDescendants(root).ToList();
 
             // Assert
             Assert.That(rootPublished, Is.True);
@@ -1146,7 +1217,7 @@ namespace Umbraco.Tests.Services
         {
             // Arrange
             var contentService = ServiceContext.ContentService;
-            var content = contentService.CreateContent("Home US", - 1, "umbTextpage", 0);
+            var content = contentService.CreateContent("Home US", -1, "umbTextpage", 0);
             content.SetValue("author", "Barack Obama");
 
             // Act
@@ -1166,7 +1237,7 @@ namespace Umbraco.Tests.Services
             var contentType = contentTypeService.GetContentType("umbTextpage");
             Content subpage = MockedContent.CreateSimpleContent(contentType, "Text Subpage 1", NodeDto.NodeIdSeed + 2);
             Content subpage2 = MockedContent.CreateSimpleContent(contentType, "Text Subpage 2", NodeDto.NodeIdSeed + 2);
-            var list = new List<IContent> {subpage, subpage2};
+            var list = new List<IContent> { subpage, subpage2 };
 
             // Act
             contentService.Save(list, 0);
@@ -1186,9 +1257,9 @@ namespace Umbraco.Tests.Services
             contentService.Save(hierarchy, 0);
 
             Assert.That(hierarchy.Any(), Is.True);
-			Assert.That(hierarchy.Any(x => x.HasIdentity == false), Is.False);
-			//all parent id's should be ok, they are lazy and if they equal zero an exception will be thrown
-			Assert.DoesNotThrow(() => hierarchy.Any(x => x.ParentId != 0));
+            Assert.That(hierarchy.Any(x => x.HasIdentity == false), Is.False);
+            //all parent id's should be ok, they are lazy and if they equal zero an exception will be thrown
+            Assert.DoesNotThrow(() => hierarchy.Any(x => x.ParentId != 0));
 
         }
 
@@ -1282,6 +1353,69 @@ namespace Umbraco.Tests.Services
             Assert.That(contents.Any(), Is.False);
         }
 
+        [Test]
+        public void Can_Empty_RecycleBin_With_Content_That_Has_All_Related_Data()
+        {
+            // Arrange
+            //need to:
+            // * add relations
+            // * add permissions
+            // * add notifications
+            // * public access
+            // * tags
+            // * domain
+            // * published & preview data
+            // * multiple versions
+
+            var contentType = MockedContentTypes.CreateAllTypesContentType("test", "test");
+            ServiceContext.ContentTypeService.Save(contentType, 0);
+
+            object obj =
+               new
+               {
+                   tags = "Hello,World"
+               };
+            var content1 = MockedContent.CreateBasicContent(contentType);
+            content1.PropertyValues(obj);
+            content1.ResetDirtyProperties(false);
+            ServiceContext.ContentService.Save(content1, 0);
+            Assert.IsTrue(ServiceContext.ContentService.PublishWithStatus(content1, 0).Success);
+            var content2 = MockedContent.CreateBasicContent(contentType);
+            content2.PropertyValues(obj);
+            content2.ResetDirtyProperties(false);
+            ServiceContext.ContentService.Save(content2, 0);
+            Assert.IsTrue(ServiceContext.ContentService.PublishWithStatus(content2, 0).Success);
+
+            ServiceContext.RelationService.Save(new RelationType(Constants.ObjectTypes.DocumentGuid, Constants.ObjectTypes.DocumentGuid, "test"));
+            Assert.IsNotNull(ServiceContext.RelationService.Relate(content1, content2, "test"));
+
+            ServiceContext.PublicAccessService.Save(new PublicAccessEntry(content1, content2, content2, new List<PublicAccessRule>
+            {
+                new PublicAccessRule
+                {
+                    RuleType = "test",
+                    RuleValue = "test"
+                }
+            }));
+            Assert.IsTrue(ServiceContext.PublicAccessService.AddRule(content1, "test2", "test2").Success);
+
+            Assert.IsNotNull(ServiceContext.NotificationService.CreateNotification(ServiceContext.UserService.GetUserById(0), content1, "test"));
+
+            ServiceContext.ContentService.AssignContentPermission(content1, 'A', new[] {0});
+
+            Assert.IsTrue(ServiceContext.DomainService.Save(new UmbracoDomain("www.test.com", "en-AU")
+            {
+                RootContentId = content1.Id
+            }).Success);
+            
+            // Act
+            ServiceContext.ContentService.EmptyRecycleBin();
+            var contents = ServiceContext.ContentService.GetContentInRecycleBin();
+
+            // Assert
+            Assert.That(contents.Any(), Is.False);
+        }
+
         [Test]
         public void Can_Move_Content()
         {
@@ -1375,7 +1509,7 @@ namespace Umbraco.Tests.Services
             var contentType = ServiceContext.ContentTypeService.GetContentType("umbTextpage");
             var temp = MockedContent.CreateSimpleContent(contentType, "Simple Text Page", -1);
             var prop = temp.Properties.First();
-            temp.SetTags(prop.Alias, new[] {"hello", "world"}, true);
+            temp.SetTags(prop.Alias, new[] { "hello", "world" }, true);
             var status = contentService.PublishWithStatus(temp);
 
             // Act
@@ -1418,14 +1552,14 @@ namespace Umbraco.Tests.Services
 
         [Test]
         public void Can_Save_Lazy_Content()
-        {	        
-	        var unitOfWork = PetaPocoUnitOfWorkProvider.CreateUnitOfWork(Mock.Of<ILogger>());
+        {
+            var unitOfWork = PetaPocoUnitOfWorkProvider.CreateUnitOfWork(Mock.Of<ILogger>());
             var contentType = ServiceContext.ContentTypeService.GetContentType("umbTextpage");
             var root = ServiceContext.ContentService.GetById(NodeDto.NodeIdSeed + 1);
 
             var c = new Lazy<IContent>(() => MockedContent.CreateSimpleContent(contentType, "Hierarchy Simple Text Page", root.Id));
             var c2 = new Lazy<IContent>(() => MockedContent.CreateSimpleContent(contentType, "Hierarchy Simple Text Subpage", c.Value.Id));
-            var list = new List<Lazy<IContent>> {c, c2};
+            var list = new List<Lazy<IContent>> { c, c2 };
 
             ContentTypeRepository contentTypeRepository;
             using (var repository = CreateRepository(unitOfWork, out contentTypeRepository))
@@ -1443,9 +1577,9 @@ namespace Umbraco.Tests.Services
                 Assert.That(c2.Value.Id > 0, Is.True);
 
                 Assert.That(c.Value.ParentId > 0, Is.True);
-                Assert.That(c2.Value.ParentId > 0, Is.True);    
+                Assert.That(c2.Value.ParentId > 0, Is.True);
             }
-            
+
         }
 
         [Test]
@@ -1468,20 +1602,20 @@ namespace Umbraco.Tests.Services
             Assert.That(hasPublishedVersion, Is.True);
         }
 
-	    [Test]
-	    public void Can_Verify_Property_Types_On_Content()
-	    {
+        [Test]
+        public void Can_Verify_Property_Types_On_Content()
+        {
             // Arrange
-	        var contentTypeService = ServiceContext.ContentTypeService;
+            var contentTypeService = ServiceContext.ContentTypeService;
             var contentType = MockedContentTypes.CreateAllTypesContentType("allDataTypes", "All DataTypes");
             contentTypeService.Save(contentType);
-	        var contentService = ServiceContext.ContentService;
-	        var content = MockedContent.CreateAllTypesContent(contentType, "Random Content", -1);
+            var contentService = ServiceContext.ContentService;
+            var content = MockedContent.CreateAllTypesContent(contentType, "Random Content", -1);
             contentService.Save(content);
-	        var id = content.Id;
+            var id = content.Id;
 
             // Act
-	        var sut = contentService.GetById(id);
+            var sut = contentService.GetById(id);
 
             // Arrange
             Assert.That(sut.GetValue<bool>("isTrue"), Is.True);
@@ -1496,7 +1630,7 @@ namespace Umbraco.Tests.Services
             Assert.That(sut.GetValue<DateTime>("dateTime").ToString("G"), Is.EqualTo(content.GetValue<DateTime>("dateTime").ToString("G")));
             Assert.That(sut.GetValue<string>("colorPicker"), Is.EqualTo("black"));
             //that one is gone in 7.4
-	        //Assert.That(sut.GetValue<string>("folderBrowser"), Is.Null);
+            //Assert.That(sut.GetValue<string>("folderBrowser"), Is.Null);
             Assert.That(sut.GetValue<string>("ddlMultiple"), Is.EqualTo("1234,1235"));
             Assert.That(sut.GetValue<string>("rbList"), Is.EqualTo("random"));
             Assert.That(sut.GetValue<DateTime>("date").ToString("G"), Is.EqualTo(content.GetValue<DateTime>("date").ToString("G")));
@@ -1507,23 +1641,23 @@ namespace Umbraco.Tests.Services
             Assert.That(sut.GetValue<int>("memberPicker"), Is.EqualTo(1092));
             Assert.That(sut.GetValue<string>("relatedLinks"), Is.EqualTo("<links><link title=\"google\" link=\"http://google.com\" type=\"external\" newwindow=\"0\" /></links>"));
             Assert.That(sut.GetValue<string>("tags"), Is.EqualTo("this,is,tags"));
-	    }
+        }
 
-	    [Test]
-	    public void Can_Delete_Previous_Versions_Not_Latest()
-	    {
+        [Test]
+        public void Can_Delete_Previous_Versions_Not_Latest()
+        {
             // Arrange
             var contentService = ServiceContext.ContentService;
             var content = contentService.GetById(NodeDto.NodeIdSeed + 4);
-	        var version = content.Version;
+            var version = content.Version;
 
-	        // Act
+            // Act
             contentService.DeleteVersion(NodeDto.NodeIdSeed + 4, version, true, 0);
             var sut = contentService.GetById(NodeDto.NodeIdSeed + 4);
 
             // Assert
             Assert.That(sut.Version, Is.EqualTo(version));
-	    }
+        }
 
         [Test]
         public void Ensure_Content_Xml_Created()
@@ -1542,7 +1676,7 @@ namespace Umbraco.Tests.Services
             }
 
             contentService.Publish(content);
-            
+
             using (var uow = provider.GetUnitOfWork())
             {
                 Assert.IsTrue(uow.Database.Exists<ContentXmlDto>(content.Id));
@@ -1559,10 +1693,10 @@ namespace Umbraco.Tests.Services
             contentService.Save(content);
 
             var provider = new PetaPocoUnitOfWorkProvider(Logger);
-            
+
             using (var uow = provider.GetUnitOfWork())
             {
-                Assert.IsTrue(uow.Database.SingleOrDefault<PreviewXmlDto>("WHERE nodeId=@nodeId AND versionId = @versionId", new{nodeId = content.Id, versionId = content.Version}) != null);
+                Assert.IsTrue(uow.Database.SingleOrDefault<PreviewXmlDto>("WHERE nodeId=@nodeId AND versionId = @versionId", new { nodeId = content.Id, versionId = content.Version }) != null);
             }
         }
 
@@ -1665,11 +1799,11 @@ namespace Umbraco.Tests.Services
             var contentType = ServiceContext.ContentTypeService.GetContentType("umbTextpage");
             var root = ServiceContext.ContentService.GetById(NodeDto.NodeIdSeed + 1);
 
-			var list = new List<IContent>();
+            var list = new List<IContent>();
 
             for (int i = 0; i < 10; i++)
             {
-				var content = MockedContent.CreateSimpleContent(contentType, "Hierarchy Simple Text Page " + i, root);
+                var content = MockedContent.CreateSimpleContent(contentType, "Hierarchy Simple Text Page " + i, root);
 
                 list.Add(content);
                 list.AddRange(CreateChildrenOf(contentType, content, 4));
@@ -1680,12 +1814,12 @@ namespace Umbraco.Tests.Services
             return list;
         }
 
-		private IEnumerable<IContent> CreateChildrenOf(IContentType contentType, IContent content, int depth)
+        private IEnumerable<IContent> CreateChildrenOf(IContentType contentType, IContent content, int depth)
         {
             var list = new List<IContent>();
             for (int i = 0; i < depth; i++)
             {
-				var c = MockedContent.CreateSimpleContent(contentType, "Hierarchy Simple Text Subpage " + i, content);
+                var c = MockedContent.CreateSimpleContent(contentType, "Hierarchy Simple Text Subpage " + i, content);
                 list.Add(c);
 
                 Debug.Print("Created: 'Hierarchy Simple Text Subpage {0}' - Depth: {1}", i, depth);

src/Umbraco.Tests/Services/ContentTypeServiceTests.cs

@@ -304,6 +304,42 @@ namespace Umbraco.Tests.Services
             Assert.IsNull(deletedContentType);
         }
 
+        [Test]
+        public void Can_Create_Container()
+        {
+            // Arrange
+            var cts = ServiceContext.ContentTypeService;
+
+            // Act
+            var container = new EntityContainer(Constants.ObjectTypes.DocumentTypeGuid);
+            container.Name = "container1";
+            cts.SaveContentTypeContainer(container);
+
+            // Assert
+            var createdContainer = cts.GetContentTypeContainer(container.Id);
+            Assert.IsNotNull(createdContainer);
+        }
+
+        [Test]
+        public void Can_Get_All_Containers()
+        {
+            // Arrange
+            var cts = ServiceContext.ContentTypeService;
+
+            // Act
+            var container1 = new EntityContainer(Constants.ObjectTypes.DocumentTypeGuid);
+            container1.Name = "container1";
+            cts.SaveContentTypeContainer(container1);
+
+            var container2 = new EntityContainer(Constants.ObjectTypes.DocumentTypeGuid);
+            container2.Name = "container2";
+            cts.SaveContentTypeContainer(container2);
+
+            // Assert
+            var containers = cts.GetContentTypeContainers(new int[0]);
+            Assert.AreEqual(2, containers.Count());
+        }
+
         [Test]
         public void Deleting_ContentType_Sends_Correct_Number_Of_DeletedEntities_In_Events()
         {
@@ -717,6 +753,16 @@ namespace Umbraco.Tests.Services
             Assert.DoesNotThrow(() => service.GetContentType("advancedPage"));
         }
 
+        [Test]
+        public void Cannot_Save_ContentType_With_Empty_Name()
+        {
+            // Arrange
+            var contentType = MockedContentTypes.CreateSimpleContentType("contentType", string.Empty);
+            
+            // Act & Assert
+            Assert.Throws<ArgumentException>(() => ServiceContext.ContentTypeService.Save(contentType));
+        }
+
         [Test]
         public void Cannot_Rename_PropertyType_Alias_On_Composition_Which_Would_Cause_Conflict_In_Other_Composition()
         {