bumps to RC1

Moves binding redirects to pre app startup
Merge pull request #1897 from umbraco/temp-u4-9798
2017-04-21 17:45:27 +10:00 · 2017-04-21 12:15:36 +10:00 · 2017-04-21 11:28:37 +10:00 · 2017-04-20 23:42:15 +02:00 · 2017-04-20 15:12:12 +01:00 · 2017-04-20 12:03:29 +02:00
628 changed files with 14450 additions and 8864 deletions
@@ -0,0 +1,10 @@
+root=true
+
+[*]
+end_of_line = lf
+indent_style = space
+indent_size = 2
+trim_trailing_whitespace = true
+
+[*.{cs,cshtml,csx,vb,vbx,vbhtml,fs,fsx,txt,ps1,sql}]
+indent_size = 4
@@ -14,33 +14,33 @@
    <summary>Contains the core assemblies needed to run Umbraco Cms</summary>
    <language>en-US</language>
    <tags>umbraco</tags>
-    <dependencies>
-      <!--Must be this way because 2.0.5 is actually 1.2.15.0 and 2.0.6 is actually 2.0.6 !-->
-      <dependency id="log4net" version="[2.0.5,2.0.6)" />
+    <dependencies>      
+      <dependency id="log4net" version="[2.0.8,3.0.0)" />
+      <dependency id="Log4Net.Async" version="[2.0.4,3.0.0)" />
      <dependency id="Microsoft.AspNet.Mvc" version="[5.2.3,6.0.0)" />
      <dependency id="Microsoft.AspNet.WebApi" version="[5.2.3,6.0.0)" />
      <dependency id="Microsoft.AspNet.Identity.Owin" version="[2.2.1, 3.0.0)" />
+      <dependency id="Microsoft.AspNet.SignalR.Core" version="[2.2.1, 3.0.0)" />
      <dependency id="Microsoft.Owin.Security.Cookies" version="[3.0.1, 4.0.0)" />
      <dependency id="Microsoft.Owin.Security.OAuth" version="[3.0.1, 4.0.0)" />
      <dependency id="Microsoft.Owin.Host.SystemWeb" version="[3.0.1, 4.0.0)" />
      <dependency id="MiniProfiler" version="[2.1.0, 3.0.0)" />
-      <dependency id="HtmlAgilityPack" version="[1.4.9, 2.0.0)" />
+      <dependency id="HtmlAgilityPack" version="[1.4.9.5, 2.0.0)" />
      <dependency id="Lucene.Net" version="[2.9.4.1, 3.0.0.0)" />
      <dependency id="SharpZipLib" version="[0.86.0, 1.0.0)" />
-      <dependency id="MySql.Data" version="[6.9.8, 7.0.0)" />
+      <dependency id="MySql.Data" version="[6.9.9, 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="[1.8.0.0, 2.0.0)" />
      <dependency id="AutoMapper" version="[3.3.1, 4.0.0)" />
-      <dependency id="Newtonsoft.Json" version="[9.0.1, 10.0.0)" />
-      <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="Newtonsoft.Json" version="[10.0.2, 11.0.0)" />
+      <dependency id="Examine" version="[0.1.82, 1.0.0)" />
+      <dependency id="ImageProcessor" version="[2.5.3, 3.0.0)" />
+      <dependency id="ImageProcessor.Web" version="[4.8.3, 5.0.0)" />
      <dependency id="semver" version="[2.0.4, 3.0.0)" />
-      <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="[1.14.7, 2.0.0)" />	  
-      <dependency id="System.Threading.Tasks.Dataflow" version="[4.6.0, 5.0.0)" />
+      <dependency id="Markdown" version="[1.14.7, 2.0.0)" />
+      <dependency id="System.Threading.Tasks.Dataflow" version="[4.7.0, 5.0.0)" />
    </dependencies>
  </metadata>
  <files>
@@ -16,8 +16,8 @@
    <tags>umbraco</tags>
    <dependencies>
      <dependency id="UmbracoCms.Core" version="[$version$]" />
-      <dependency id="Newtonsoft.Json" version="[9.0.1, 10.0.0)" />
-      <dependency id="Umbraco.ModelsBuilder" version="[3.0.5, 4.0.0)" />
+      <dependency id="Newtonsoft.Json" version="[10.0.2, 11.0.0)" />
+      <dependency id="Umbraco.ModelsBuilder" version="[3.0.7, 4.0.0)" />
      <dependency id="Microsoft.AspNet.SignalR.Core" version="[2.2.1, 3.0.0)" />
 	  <dependency id="ImageProcessor.Web.Config" version="[2.3.0, 3.0.0)" />
    </dependencies>
@@ -41,16 +41,6 @@
        views/dashboard/developer/examinemanagement.html
      </control>
    </tab>
-    <tab caption="Health Check" xdt:Transform="InsertIfMissing" xdt:Locator="Match(caption)">
-      <control>
-        views/dashboard/developer/healthcheck.html
-      </control>
-    </tab>
-    <tab caption="Redirect URL Management" xdt:Transform="InsertIfMissing" xdt:Locator="Match(caption)">
-      <control>
-        views/dashboard/developer/redirecturls.html
-      </control>
-    </tab>	
  </section>
  
  <section alias="StartupMediaDashboardSection" xdt:Locator="Match(alias)" xdt:Transform="InsertIfMissing">
@@ -80,4 +70,26 @@
 	<tab caption="Change Password" xdt:Locator="Match(caption)" xdt:Transform="Remove" />
 	<tab caption="Last Edits" xdt:Locator="Match(caption)" xdt:Transform="Remove" />
  </section>
+
+  <section alias="RedirectUrlManagement" xdt:Locator="Match(alias)" xdt:Transform="InsertIfMissing">
+    <areas>
+      <area>content</area>
+    </areas>
+    <tab caption="Redirect URL Management">
+      <control>
+        views/dashboard/developer/redirecturls.html
+      </control>
+    </tab>
+  </section>
+
+  <section alias="UmbracoHealthCheck" xdt:Locator="Match(alias)" xdt:Transform="InsertIfMissing">
+    <areas>
+      <area>developer</area>
+    </areas>
+    <tab caption="Health Check">
+      <control>
+        views/dashboard/developer/healthcheck.html
+      </control>
+    </tab>
+  </section>
 </dashBoard>
@@ -8,8 +8,16 @@
                                                   
 ----------------------------------------------------

-Don't forget to build!
+*** IMPORTANT NOTICE FOR 7.6 UPGRADES ***

+Be sure to read the version specific upgrade information before proceeding:
+https://our.umbraco.org/documentation/Getting-Started/Setup/Upgrading/version-specific#version-7-6-0
+
+You will most likely need to make some changes to your web.config and you will need to be 
+aware of the breaking changes listed there to see if these affect your installation.
+
+
+Don't forget to build!

 We've done our best to transform your configuration files but in case something is not quite right: remember we
 backed up your files in App_Data\NuGetBackup so you can find the original files before they were transformed.
@@ -58,7 +58,7 @@
    <httpRuntime xdt:Transform="InsertIfMissing" />
    <httpRuntime maxRequestLength="51200" fcnMode="Single" xdt:Transform="SetAttributes(fcnMode,maxRequestLength)" />
    <httpRuntime targetFramework="4.5" xdt:Locator="Condition(count(@targetFramework) != 1)" xdt:Transform="SetAttributes(targetFramework)" />
-    
+
    <membership defaultProvider="DefaultMembershipProvider" xdt:Locator="Match(defaultProvider)" xdt:Transform="Remove" />
    <roleManager defaultProvider="DefaultRoleProvider" xdt:Locator="Match(defaultProvider)" xdt:Transform="Remove"/>
    <profile defaultProvider="DefaultProfileProvider" xdt:Locator="Match(defaultProvider)" xdt:Transform="Remove"/>>
@@ -330,6 +330,8 @@
      <dependentAssembly xdt:Locator="Condition(./_defaultNamespace:assemblyIdentity/@name='Microsoft.Owin.Security')" xdt:Transform="Remove" />
      <dependentAssembly xdt:Locator="Condition(./_defaultNamespace:assemblyIdentity/@name='Microsoft.Owin.Security.Cookies')" xdt:Transform="Remove" />
      <dependentAssembly xdt:Locator="Condition(./_defaultNamespace:assemblyIdentity/@name='System.Net.Http.Formatting')" xdt:Transform="Remove" />
+      <dependentAssembly xdt:Locator="Condition(./_defaultNamespace:assemblyIdentity/@name='Microsoft.CodeAnalysis.CSharp')" xdt:Transform="Remove" />
+      <dependentAssembly xdt:Locator="Condition(./_defaultNamespace:assemblyIdentity/@name='log4net')" xdt:Transform="Remove" />
    </assemblyBinding>
  </runtime>

@@ -337,7 +339,7 @@
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly xdt:Transform="Insert">
        <assemblyIdentity name="HtmlAgilityPack" publicKeyToken="bd319b19eaf3b43a" culture="neutral" />
-        <bindingRedirect oldVersion="0.0.0.0-1.4.9.0" newVersion="1.4.9.0" />
+        <bindingRedirect oldVersion="0.0.0.0-1.4.9.5" newVersion="1.4.9.5" />
      </dependentAssembly>
      <dependentAssembly xdt:Transform="Insert">
        <assemblyIdentity name="AutoMapper" publicKeyToken="be96cd2c38ef1005" culture="neutral" />
@@ -349,7 +351,7 @@
      </dependentAssembly>
      <dependentAssembly xdt:Transform="Insert">
        <assemblyIdentity name="Newtonsoft.Json" publicKeyToken="30ad4fe6b2a6aeed" culture="neutral" />
-        <bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0" />
+        <bindingRedirect oldVersion="0.0.0.0-10.0.0.0" newVersion="10.0.0.0" />
      </dependentAssembly>
      <dependentAssembly xdt:Transform="Insert">
        <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" culture="neutral" />
@@ -383,6 +385,10 @@
        <assemblyIdentity name="System.Net.Http.Formatting" publicKeyToken="31bf3856ad364e35" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-5.2.3.0" newVersion="5.2.3.0" />
      </dependentAssembly>
+      <dependentAssembly xdt:Transform="Insert">
+        <assemblyIdentity name="log4net" publicKeyToken="669e0ddf0bb1aa2a" culture="neutral"/>
+        <bindingRedirect oldVersion="0.0.0.0-2.0.8.0" newVersion="2.0.8.0"/>
+      </dependentAssembly>
    </assemblyBinding>
  </runtime>

@@ -53,7 +53,6 @@ if ($project) {
 		if(Test-Path $umbracoBinFolder\umbraco.providers.dll) { Remove-Item $umbracoBinFolder\umbraco.providers.dll -Force -Confirm:$false }
 		if(Test-Path $umbracoBinFolder\Umbraco.Web.UI.dll) { Remove-Item $umbracoBinFolder\Umbraco.Web.UI.dll -Force -Confirm:$false }
 		if(Test-Path $umbracoBinFolder\UmbracoExamine.dll) { Remove-Item $umbracoBinFolder\UmbracoExamine.dll -Force -Confirm:$false }
-		if(Test-Path $umbracoBinFolder\UrlRewritingNet.UrlRewriter.dll) { Remove-Item $umbracoBinFolder\UrlRewritingNet.UrlRewriter.dll -Force -Confirm:$false }
 		
 		# Delete files Umbraco depends upon
 		$amd64Folder = Join-Path $umbracoBinFolder "amd64"
@@ -34,10 +34,15 @@
       xdt:Transform="SetAttributes()" />
  <add application="settings" alias="templates" title="Templates" type="Umbraco.Web.Trees.TemplatesTreeController, umbraco" iconClosed="icon-folder" iconOpen="icon-folder-open" sortOrder="1" 
       xdt:Locator="Match(application,alias)" 
-       xdt:Transform="SetAttributes()" />
-  <add application="settings" alias="partialViews" title="Partial Views" silent="false" initialize="true" iconClosed="icon-folder" iconOpen="icon-folder" type="Umbraco.Web.Trees.PartialViewsTree, umbraco" sortOrder="2" 
-       xdt:Locator="Match(application,alias)" 
-       xdt:Transform="SetAttributes()" />
+       xdt:Transform="SetAttributes()" /> 
+  
+  <add application="settings" alias="partialViews" type="Umbraco.Web.Trees.PartialViewsTree, umbraco"
+       xdt:Locator="Match(application,alias,type)"
+       xdt:Transform="Remove()" />
+  <add application="settings" alias="partialViews" title="Partial Views" silent="false" initialize="true" iconClosed="icon-folder" iconOpen="icon-folder" type="Umbraco.Web.Trees.PartialViewsTreeController, umbraco" sortOrder="2"
+       xdt:Locator="Match(application,alias)"
+       xdt:Transform="InsertIfMissing"  />
+  
  <add application="settings" alias="scripts" title="Scripts" type="umbraco.loadScripts, umbraco" iconClosed="icon-folder" iconOpen="icon-folder" sortOrder="4" 
       xdt:Locator="Match(application,alias)" 
       xdt:Transform="SetAttributes()" />
@@ -84,9 +89,14 @@
  <add application="developer" alias="xslt" title="XSLT Files" type="umbraco.loadXslt, umbraco" iconClosed="icon-folder" iconOpen="icon-folder" sortOrder="5" 
       xdt:Locator="Match(application,alias)" 
       xdt:Transform="SetAttributes()" />
-  <add application="developer" alias="partialViewMacros" type="Umbraco.Web.Trees.PartialViewMacrosTree, umbraco" silent="false" initialize="true" sortOrder="6" title="Partial View Macro Files" iconClosed="icon-folder" iconOpen="icon-folder" 
-       xdt:Locator="Match(application,alias)" 
-       xdt:Transform="SetAttributes()" />
+  
+  <add application="developer" alias="partialViewMacros" type="Umbraco.Web.Trees.PartialViewMacrosTree, umbraco"
+       xdt:Locator="Match(application,alias,type)" 
+       xdt:Transform="Remove()" />
+  <add application="developer" alias="partialViewMacros" type="Umbraco.Web.Trees.PartialViewMacrosTreeController, umbraco" silent="false" initialize="true" sortOrder="6" title="Partial View Macro Files" iconClosed="icon-folder" iconOpen="icon-folder"
+       xdt:Locator="Match(application,alias)"
+       xdt:Transform="InsertIfMissing"  />
+  
  <add application="developer" alias="python" 
       xdt:Locator="Match(application,alias)" 
       xdt:Transform="Remove" />
@@ -1,3 +1,3 @@
 # Usage: on line 2 put the release version, on line 3 put the version comment (example: beta)
 7.6.0
-alpha070
+RC1
@@ -10,7 +10,7 @@
    <AppDesignerFolder>Properties</AppDesignerFolder>
    <RootNamespace>SQLCE4Umbraco</RootNamespace>
    <AssemblyName>SQLCE4Umbraco</AssemblyName>
-    <TargetFrameworkVersion>v4.6.2</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
    <FileAlignment>512</FileAlignment>
    <SccProjectName>
    </SccProjectName>
@@ -49,9 +49,11 @@
    <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.Xml.Linq" />
    <Reference Include="System.Data.DataSetExtensions" />
@@ -4,7 +4,7 @@
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="Newtonsoft.Json" publicKeyToken="30ad4fe6b2a6aeed" culture="neutral" />
-        <bindingRedirect oldVersion="0.0.0.0-9.0.0.0" newVersion="9.0.0.0" />
+        <bindingRedirect oldVersion="0.0.0.0-10.0.0.0" newVersion="10.0.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" culture="neutral" />
@@ -30,6 +30,10 @@
        <assemblyIdentity name="Microsoft.Owin.Security.Cookies" publicKeyToken="31bf3856ad364e35" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-3.0.1.0" newVersion="3.0.1.0" />
      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="log4net" publicKeyToken="669e0ddf0bb1aa2a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-2.0.8.0" newVersion="2.0.8.0" />
+      </dependentAssembly>
    </assemblyBinding>
  </runtime>
-<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.2" /></startup></configuration>
+<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" /></startup></configuration>
@@ -12,4 +12,4 @@ using System.Resources;
 [assembly: AssemblyVersion("1.0.*")]

 [assembly: AssemblyFileVersion("7.6.0")]
-[assembly: AssemblyInformationalVersion("7.6.0-alpha070")]
+[assembly: AssemblyInformationalVersion("7.6.0-RC1")]
@@ -1,8 +1,6 @@
 using System;
 using System.Configuration;
 using System.Threading;
-using System.Threading.Tasks;
-using System.Web;
 using Umbraco.Core.Configuration;
 using Umbraco.Core.Logging;
 using Umbraco.Core.ObjectResolution;
@@ -163,7 +161,9 @@ namespace Umbraco.Core
    	/// </summary>
    	public static ApplicationContext Current { get; internal set; }

-        // fixme
+        /// <summary>
+        /// Gets the scope provider.
+        /// </summary>
        internal IScopeProvider ScopeProvider { get { return _databaseContext == null ? null : _databaseContext.ScopeProvider; } }

 		/// <summary>
@@ -4,12 +4,14 @@ using System.Text.RegularExpressions;
 using System.Web;
 using Umbraco.Core;

+[assembly: PreApplicationStartMethod(typeof(BindingRedirects), "Initialize")]
+
 namespace Umbraco.Core
 {
    /// <summary>
-    /// Manages any assembly binding redirects that cannot be done via config
+    /// Manages any assembly binding redirects that cannot be done via config (i.e. unsigned --> signed assemblies)
    /// </summary>
-    internal class BindingRedirects
+    public sealed class BindingRedirects
    {
        public static void Initialize()
        {
@@ -17,8 +19,8 @@ namespace Umbraco.Core
            AppDomain.CurrentDomain.AssemblyResolve += CurrentDomain_AssemblyResolve;
        }

-        private static readonly Regex Log4NetAssemblyPattern = new Regex("log4net, Version=([\\d\\.]+?), Culture=neutral, PublicKeyToken=null", RegexOptions.Compiled);
-        private const string Log4NetReplacement = "log4net, Version=1.2.15.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a";
+        private static readonly Regex Log4NetAssemblyPattern = new Regex("log4net, Version=([\\d\\.]+?), Culture=neutral, PublicKeyToken=\\w+$", RegexOptions.Compiled);
+        private const string Log4NetReplacement = "log4net, Version=2.0.8.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a";
        
        /// <summary>
        /// This is used to do an assembly binding redirect via code - normally required due to signature changes in assemblies
@@ -28,13 +30,12 @@ namespace Umbraco.Core
        /// <returns></returns>
        private static Assembly CurrentDomain_AssemblyResolve(object sender, ResolveEventArgs args)
        {
-            //log4net:
-            // Use regex to match and replace 
+            //log4net:            
            if (Log4NetAssemblyPattern.IsMatch(args.Name) && args.Name != Log4NetReplacement)
            {
                return Assembly.Load(Log4NetAssemblyPattern.Replace(args.Name, Log4NetReplacement));
            }
-
+            
            //AutoMapper:
            // ensure the assembly is indeed AutoMapper and that the PublicKeyToken is null before trying to Load again
            // do NOT just replace this with 'return Assembly', as it will cause an infinite loop -> stackoverflow
@@ -26,6 +26,9 @@ namespace Umbraco.Core.Cache

        public DeepCloneRuntimeCacheProvider(IRuntimeCacheProvider innerProvider)
        {
+            if (innerProvider.GetType() == typeof(DeepCloneRuntimeCacheProvider))
+                throw new InvalidOperationException("A " + typeof(DeepCloneRuntimeCacheProvider) + " cannot wrap another instance of " + typeof(DeepCloneRuntimeCacheProvider));
+
            InnerProvider = innerProvider;
        }

@@ -105,9 +108,11 @@ namespace Umbraco.Core.Cache
                var value = result.Value; // force evaluation now - this may throw if cacheItem throws, and then nothing goes into cache
                if (value == null) return null; // do not store null values (backward compat)

+                //Clone/reset to go into the cache
                return CheckCloneableAndTracksChanges(value);
            }, timeout, isSliding, priority, removedCallback, dependentFiles);

+            //Clone/reset to go out of the cache
            return CheckCloneableAndTracksChanges(cached);
        }

@@ -22,12 +22,12 @@ namespace Umbraco.Core.Cache
    {
        private static readonly TEntity[] EmptyEntities = new TEntity[0]; // const
        private readonly RepositoryCachePolicyOptions _options;
-       
+
        public DefaultRepositoryCachePolicy(IRuntimeCacheProvider cache, RepositoryCachePolicyOptions options)
            : base(cache)
-        {            
+        {
            if (options == null) throw new ArgumentNullException("options");
-            _options = options;         
+            _options = options;
        }

        public override IRepositoryCachePolicy<TEntity, TId> Scoped(IRuntimeCacheProvider runtimeCache, IScope scope)
@@ -244,9 +244,7 @@ namespace Umbraco.Core.Cache
        /// <inheritdoc />
        public override void ClearAll()
        {
-            // fixme the cache should NOT contain anything else so we can clean all, can't we?
            Cache.ClearAllCache();
-            //Cache.ClearCacheByKeySearch(GetEntityTypeCacheKey());
        }
    }
 }
@@ -18,10 +18,17 @@ namespace Umbraco.Core.Cache
        // it is not *that* complicated but then RepositoryBase needs to have a TRepository generic
        // type parameter and it all becomes convoluted - keeping it simple for the time being.

-        // fixme explain
+        /// <summary>
+        /// Creates a scoped version of this cache policy.
+        /// </summary>
+        /// <param name="runtimeCache">The global isolated runtime cache for this policy.</param>
+        /// <param name="scope">The scope.</param>
+        /// <remarks>When a policy is scoped, it means that it has been created with a scoped
+        /// isolated runtime cache, and now it needs to be wrapped into something that can apply
+        /// changes to the global isolated runtime cache.</remarks>
        IRepositoryCachePolicy<TEntity, TId> Scoped(IRuntimeCacheProvider runtimeCache, IScope scope);

-            /// <summary>
+        /// <summary>
        /// Gets an entity from the cache, else from the repository.
        /// </summary>
        /// <param name="id">The identifier.</param>
@@ -0,0 +1,9 @@
+namespace Umbraco.Core.Configuration
+{
+    internal enum ContentXmlStorage
+    {
+        Default,
+        AspNetTemp,
+        EnvironmentTemp
+    }
+}
@@ -0,0 +1,31 @@
+using System;
+
+namespace Umbraco.Core.Configuration
+{
+    internal static class CoreDebugExtensions
+    {
+        private static CoreDebug _coreDebug;
+
+        public static CoreDebug CoreDebug(this UmbracoConfig config)
+        {
+            return _coreDebug ?? (_coreDebug = new CoreDebug());
+        }
+    }
+
+    internal class CoreDebug
+    {
+        public CoreDebug()
+        {
+            var appSettings = System.Configuration.ConfigurationManager.AppSettings;
+            LogUncompletedScopes = string.Equals("true", appSettings["Umbraco.CoreDebug.LogUncompletedScopes"], StringComparison.OrdinalIgnoreCase);
+            DumpOnTimeoutThreadAbort = string.Equals("true", appSettings["Umbraco.CoreDebug.DumpOnTimeoutThreadAbort"], StringComparison.OrdinalIgnoreCase);
+        }
+
+        // when true, Scope logs the stack trace for any scope that gets disposed without being completed.
+        // this helps troubleshooting rogue scopes that we forget to complete
+        public bool LogUncompletedScopes { get; private set; }
+        // when true, the Logger creates a minidump of w3wp in ~/App_Data/MiniDump whenever it logs
+        // an error due to a ThreadAbortException that is due to a timeout.
+        public bool DumpOnTimeoutThreadAbort { get; private set; }
+    }
+}
@@ -517,12 +517,25 @@ 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;
            }
        }

@@ -177,6 +177,18 @@ namespace Umbraco.Core.Configuration.UmbracoSettings
            get { return GetOptionalTextElement("EnableInheritedMediaTypes", true); }
        }

+        [ConfigurationProperty("EnablePropertyValueConverters")]
+        internal InnerTextConfigurationElement<bool> EnablePropertyValueConverters
+        {
+            get { return GetOptionalTextElement("EnablePropertyValueConverters", false); }
+        }
+
+        [ConfigurationProperty("loginBackgroundImage")]
+        internal InnerTextConfigurationElement<string> LoginBackgroundImage
+        {
+            get { return GetOptionalTextElement("loginBackgroundImage", string.Empty); }
+        }
+
        string IContentSection.NotificationEmailAddress
        {
            get { return Notifications.NotificationEmailAddress; }
@@ -326,5 +338,14 @@ namespace Umbraco.Core.Configuration.UmbracoSettings
        {
            get { return EnableInheritedMediaTypes; }
        }
+        bool IContentSection.EnablePropertyValueConverters
+        {
+            get { return EnablePropertyValueConverters; }
+        }
+
+        string IContentSection.LoginBackgroundImage
+        {
+            get { return LoginBackgroundImage; }
+        }
    }
 }
@@ -69,5 +69,9 @@ namespace Umbraco.Core.Configuration.UmbracoSettings
        bool EnableInheritedDocumentTypes { get; }

        bool EnableInheritedMediaTypes { get; }
+
+        bool EnablePropertyValueConverters { get; }
+
+        string LoginBackgroundImage { get; }
    }
 }
@@ -24,7 +24,7 @@ namespace Umbraco.Core.Configuration
        /// Gets the version comment (like beta or RC).
        /// </summary>
        /// <value>The version comment.</value>
-        public static string CurrentComment { get { return "alpha070"; } }
+        public static string CurrentComment { get { return "RC1"; } }

        // Get the version of the umbraco.dll by looking at a class in that dll
        // Had to do it like this due to medium trust issues, see: http://haacked.com/archive/2010/11/04/assembly-location-and-medium-trust.aspx
@@ -89,6 +89,11 @@ namespace Umbraco.Core
            /// </summary>
            public const string Media = "B796F64C-1F99-4FFB-B886-4BF4BC011A9C";

+            /// <summary>
+            /// Guid for a Document object.
+            /// </summary>
+            public static readonly Guid MediaGuid = new Guid(Media);
+
            /// <summary>
            /// Guid for the Media Recycle Bin.
            /// </summary>
@@ -119,6 +124,11 @@ namespace Umbraco.Core
            /// </summary>
            public const string MemberGroup = "366E63B9-880F-4E13-A61C-98069B029728";

+            /// <summary>
+            /// Guid for a Member Group object.
+            /// </summary>
+            public static readonly Guid MemberGroupGuid = new Guid(MemberGroup);
+
            /// <summary>
            /// Guid for a Member Type object.
            /// </summary>
@@ -148,6 +158,11 @@ namespace Umbraco.Core
            /// </summary>
            public const string Template = "6FBDE604-4178-42CE-A10B-8A2600A2F07D";

+            /// <summary>
+            /// Guid for a Template object.
+            /// </summary>
+            public static readonly Guid TemplateTypeGuid = new Guid(Template);
+
            /// <summary>
            /// Guid for a Lock object.
            /// </summary>
@@ -289,11 +289,14 @@ namespace Umbraco.Core
            /// </summary>
            [Obsolete("GUIDs are no longer used to reference Property Editors, use the Alias constant instead. This will be removed in future versions")]
            public const string RelatedLinks = "71B8AD1A-8DC2-425C-B6B8-FAA158075E63";
+            
+            [Obsolete("This is an obsoleted picker, use RelatedLinks2Alias instead")]
+            public const string RelatedLinksAlias = "Umbraco.RelatedLinks";

            /// <summary>
-            /// Alias for the Related Links datatype.
+            /// Alias for the Related Links property editor.
            /// </summary>
-            public const string RelatedLinksAlias = "Umbraco.RelatedLinks";
+            public const string RelatedLinks2Alias = "Umbraco.RelatedLinks2";

            /// <summary>
            /// Guid for the Slider datatype.
@@ -173,7 +173,6 @@ namespace Umbraco.Core
            return new ServiceContext(
                new RepositoryFactory(ApplicationCache, ProfilingLogger.Logger, dbContext.SqlSyntax, UmbracoConfig.For.UmbracoSettings()),
                new PetaPocoUnitOfWorkProvider(scopeProvider),
-                new FileUnitOfWorkProvider(scopeProvider),
                ApplicationCache,
                ProfilingLogger.Logger,
                msgFactory);
@@ -1,5 +1,4 @@
 using System;
-using System.Collections.Generic;
 using System.Configuration;
 using System.Data.SqlServerCe;
 using System.IO;
@@ -34,7 +33,7 @@ namespace Umbraco.Core
        private string _connectionString;
        private string _providerName;
        private DatabaseSchemaResult _result;
-        private DateTime? _connectionLastChecked = null;
+        private DateTime? _connectionLastChecked;

        /// <summary>
        /// The number of minutes to throttle the checks to CanConnect
@@ -99,10 +98,10 @@ namespace Umbraco.Core
            SqlSyntaxContext.SqlSyntaxProvider = SqlSyntax;

            var asDbFactory2 = factory as IDatabaseFactory2;
-            ScopeProvider = asDbFactory2 == null 
-                ? new ScopeProvider(new DatabaseFactoryWrapper(factory)) 
+            ScopeProvider = asDbFactory2 == null
+                ? new ScopeProvider(new DatabaseFactoryWrapper(factory))
                : new ScopeProvider(asDbFactory2);
-            
+
            _logger = logger;
            _configured = true;
        }
@@ -197,42 +196,13 @@ namespace Umbraco.Core
                {
                    throw new InvalidOperationException("Cannot create a database instance, there is no available connection string");
                }
-            
+
                return ScopeProvider.GetAmbientOrNoScope().Database;
                //var scope = ScopeProvider.AmbientScope;
                //return scope != null ? scope.Database : ScopeProvider.CreateNoScope().Database;
            }
        }

-        /// <summary>
-        /// Replaces the "ambient" database (if any) and by a new temp database.
-        /// </summary>
-        /// <remarks>
-        /// <para>The returned IDisposable *must* be diposed in order to properly dispose the temp database and
-        /// restore the original "ambient" database (if any).</para>
-        /// <para>This is to be used in background tasks to ensure that they have an "ambient" database which
-        /// will be properly removed from call context and does not interfere with anything else. In most case
-        /// it is not replacing anything, just temporarily installing a database in context.</para>
-        /// </remarks>
-        // fixme - this should just entirely be replaced by Scope?
-        /*
-        public virtual IDisposable UseSafeDatabase(bool force = false)
-        {
-            var factory = _factory as DefaultDatabaseFactory;
-            if (factory == null) throw new NotSupportedException();
-
-            if (DefaultDatabaseFactory.HasAmbientDatabase)
-            {
-                return force
-                    ? new UsingDatabase(DefaultDatabaseFactory.DetachAmbientDatabase(), factory.CreateDatabase())
-                    : new UsingDatabase(null, null);
-            }
-
-            // create a new, temp, database (will be disposed with UsingDatabase)
-            return new UsingDatabase(null, factory.CreateDatabase());
-        }
-        */
-
        /// <summary>
        /// Boolean indicating whether the database has been configured
        /// </summary>
@@ -1,6 +1,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
+using umbraco.interfaces;
 using Umbraco.Core;

 namespace Umbraco.Core.Deploy
@@ -8,7 +9,7 @@ namespace Umbraco.Core.Deploy
    /// <summary>
    /// Connects to an Umbraco service.
    /// </summary>
-    public interface IServiceConnector
+    public interface IServiceConnector : IDiscoverable
    {
        /// <summary>
        /// Gets an artifact.
@@ -0,0 +1,135 @@
+using System;
+using System.Diagnostics;
+using System.IO;
+using System.Runtime.InteropServices;
+using Umbraco.Core.IO;
+
+namespace Umbraco.Core.Diagnostics
+{
+    // taken from https://blogs.msdn.microsoft.com/dondu/2010/10/24/writing-minidumps-in-c/
+    // and https://blogs.msdn.microsoft.com/dondu/2010/10/31/writing-minidumps-from-exceptions-in-c/
+    // which itself got it from http://blog.kalmbach-software.de/2008/12/13/writing-minidumps-in-c/
+
+    internal static class MiniDump
+    {
+        private static readonly object LockO = new object();
+
+        [Flags]
+        public enum Option : uint
+        {
+            // From dbghelp.h:
+            Normal = 0x00000000,
+            WithDataSegs = 0x00000001,
+            WithFullMemory = 0x00000002,
+            WithHandleData = 0x00000004,
+            FilterMemory = 0x00000008,
+            ScanMemory = 0x00000010,
+            WithUnloadedModules = 0x00000020,
+            WithIndirectlyReferencedMemory = 0x00000040,
+            FilterModulePaths = 0x00000080,
+            WithProcessThreadData = 0x00000100,
+            WithPrivateReadWriteMemory = 0x00000200,
+            WithoutOptionalData = 0x00000400,
+            WithFullMemoryInfo = 0x00000800,
+            WithThreadInfo = 0x00001000,
+            WithCodeSegs = 0x00002000,
+            WithoutAuxiliaryState = 0x00004000,
+            WithFullAuxiliaryState = 0x00008000,
+            WithPrivateWriteCopyMemory = 0x00010000,
+            IgnoreInaccessibleMemory = 0x00020000,
+            ValidTypeFlags = 0x0003ffff,
+        }
+
+        //typedef struct _MINIDUMP_EXCEPTION_INFORMATION {
+        //    DWORD ThreadId;
+        //    PEXCEPTION_POINTERS ExceptionPointers;
+        //    BOOL ClientPointers;
+        //} MINIDUMP_EXCEPTION_INFORMATION, *PMINIDUMP_EXCEPTION_INFORMATION;
+        [StructLayout(LayoutKind.Sequential, Pack = 4)]  // Pack=4 is important! So it works also for x64!
+        public struct MiniDumpExceptionInformation
+        {
+            public uint ThreadId;
+            public IntPtr ExceptionPointers;
+            [MarshalAs(UnmanagedType.Bool)]
+            public bool ClientPointers;
+        }
+
+        //BOOL
+        //WINAPI
+        //MiniDumpWriteDump(
+        //    __in HANDLE hProcess,
+        //    __in DWORD ProcessId,
+        //    __in HANDLE hFile,
+        //    __in MINIDUMP_TYPE DumpType,
+        //    __in_opt PMINIDUMP_EXCEPTION_INFORMATION ExceptionParam,
+        //    __in_opt PMINIDUMP_USER_STREAM_INFORMATION UserStreamParam,
+        //    __in_opt PMINIDUMP_CALLBACK_INFORMATION CallbackParam
+        //    );
+
+        // Overload requiring MiniDumpExceptionInformation
+        [DllImport("dbghelp.dll", EntryPoint = "MiniDumpWriteDump", CallingConvention = CallingConvention.StdCall, CharSet = CharSet.Unicode, ExactSpelling = true, SetLastError = true)]
+        private static extern bool MiniDumpWriteDump(IntPtr hProcess, uint processId, SafeHandle hFile, uint dumpType, ref MiniDumpExceptionInformation expParam, IntPtr userStreamParam, IntPtr callbackParam);
+
+        // Overload supporting MiniDumpExceptionInformation == NULL
+        [DllImport("dbghelp.dll", EntryPoint = "MiniDumpWriteDump", CallingConvention = CallingConvention.StdCall, CharSet = CharSet.Unicode, ExactSpelling = true, SetLastError = true)]
+        private static extern bool MiniDumpWriteDump(IntPtr hProcess, uint processId, SafeHandle hFile, uint dumpType, IntPtr expParam, IntPtr userStreamParam, IntPtr callbackParam);
+
+        [DllImport("kernel32.dll", EntryPoint = "GetCurrentThreadId", ExactSpelling = true)]
+        private static extern uint GetCurrentThreadId();
+
+        private static bool Write(SafeHandle fileHandle, Option options, bool withException = false)
+        {
+            var currentProcess = Process.GetCurrentProcess();
+            var currentProcessHandle = currentProcess.Handle;
+            var currentProcessId = (uint)currentProcess.Id;
+
+            MiniDumpExceptionInformation exp;
+
+            exp.ThreadId = GetCurrentThreadId();
+            exp.ClientPointers = false;
+            exp.ExceptionPointers = IntPtr.Zero;
+
+            if (withException)
+                exp.ExceptionPointers = Marshal.GetExceptionPointers();
+
+            var bRet = exp.ExceptionPointers == IntPtr.Zero
+                ? MiniDumpWriteDump(currentProcessHandle, currentProcessId, fileHandle, (uint) options, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero)
+                : MiniDumpWriteDump(currentProcessHandle, currentProcessId, fileHandle, (uint) options, ref exp, IntPtr.Zero, IntPtr.Zero);
+
+            return bRet;
+        }
+
+        public static bool Dump(Option options = Option.WithFullMemory, bool withException = false)
+        {
+            lock (LockO)
+            {
+                // work around "stack trace is not available while minidump debugging",
+                // by making sure a local var (that we can inspect) contains the stack trace.
+                // getting the call stack before it is unwound would require a special exception
+                // filter everywhere in our code = not!
+                var stacktrace = withException ? Environment.StackTrace : string.Empty;
+
+                var filepath = IOHelper.MapPath("~/App_Data/MiniDump");
+                if (Directory.Exists(filepath) == false)
+                    Directory.CreateDirectory(filepath);
+
+                var filename = Path.Combine(filepath, string.Format("{0:yyyyMMddTHHmmss}.{1}.dmp", DateTime.UtcNow, Guid.NewGuid().ToString("N").Substring(0, 4)));
+                using (var stream = new FileStream(filename, FileMode.Create, FileAccess.ReadWrite, FileShare.Write))
+                {
+                    return Write(stream.SafeFileHandle, options, withException);
+                }
+            }
+        }
+
+        public static bool OkToDump()
+        {
+            lock (LockO)
+            {
+                var filepath = IOHelper.MapPath("~/App_Data/MiniDump");
+                if (Directory.Exists(filepath) == false) return true;
+                var count = Directory.GetFiles(filepath, "*.dmp").Length;
+                return count < 8;
+            }
+        }
+    }
+}
@@ -295,6 +295,5 @@ namespace Umbraco.Core
            return list1Groups.Count == list2Groups.Count
               && list1Groups.All(g => g.Count() == list2Groups[g.Key].Count());
        }
-
    }
 }
@@ -16,13 +16,17 @@ namespace Umbraco.Core.Events

        protected override void ScopeExitCompleted()
        {
-            // fixme - we'd need to de-duplicate events somehow, etc - and the deduplication should be last in wins
+            // processing only the last instance of each event...
+            // this is probably far from perfect, because if eg a content is saved in a list
+            // and then as a single content, the two events will probably not be de-duplicated,
+            // but it's better than nothing

-            foreach (var e in GetEvents(EventDefinitionFilter.All))
+            foreach (var e in GetEvents(EventDefinitionFilter.LastIn))
            {
                e.RaiseEvent();

-                // fixme - not sure I like doing it here - but then where? how?
+                // separating concerns means that this should probably not be here,
+                // but then where should it be (without making things too complicated)?
                var delete = e.Args as IDeletingMediaFilesEventArgs;
                if (delete != null && delete.MediaFilesToDelete.Count > 0)
                    MediaFileSystem.DeleteMediaFiles(delete.MediaFilesToDelete);
@@ -35,13 +39,7 @@ namespace Umbraco.Core.Events
        {
            get
            {
-                if (_mediaFileSystem != null) return _mediaFileSystem;
-
-                // fixme - insane! reading config goes cross AppDomain and serializes context?
-                using (new SafeCallContext())
-                {
-                    return _mediaFileSystem = FileSystemProviderManager.Current.MediaFileSystem;
-                }
+                return _mediaFileSystem ?? (_mediaFileSystem = FileSystemProviderManager.Current.MediaFileSystem);
            }
        }
    }
@@ -1,10 +1,12 @@
 using System;
+using System.ComponentModel;

 namespace Umbraco.Core
 {
    /// <summary>
    /// Represents a guid-based entity identifier.
    /// </summary>
+    [TypeConverter(typeof(UdiTypeConverter))]
    public class GuidUdi : Udi
    {
        /// <summary>
@@ -12,25 +12,18 @@ namespace Umbraco.Core.IO
    public class FileSystemProviderManager
    {
        private readonly FileSystemProvidersSection _config;
-        private readonly WeakSet<ShadowWrapper> _wrappers = new WeakSet<ShadowWrapper>();
+        private readonly ConcurrentSet<ShadowWrapper> _wrappers = new ConcurrentSet<ShadowWrapper>();

-        // actual well-known filesystems returned by properties
-        private readonly IFileSystem2 _macroPartialFileSystem;
-        private readonly IFileSystem2 _partialViewsFileSystem;
-        private readonly IFileSystem2 _stylesheetsFileSystem;
-        private readonly IFileSystem2 _scriptsFileSystem;
-        private readonly IFileSystem2 _xsltFileSystem;
-        private readonly IFileSystem2 _masterPagesFileSystem;
-        private readonly IFileSystem2 _mvcViewsFileSystem;
+        private readonly ConcurrentDictionary<string, ProviderConstructionInfo> _providerLookup = new ConcurrentDictionary<string, ProviderConstructionInfo>();
+        private readonly ConcurrentDictionary<string, IFileSystem2> _filesystems = new ConcurrentDictionary<string, IFileSystem2>();

-        // when shadowing is enabled, above filesystems, as wrappers
-        private readonly ShadowWrapper _macroPartialFileSystemWrapper;
-        private readonly ShadowWrapper _partialViewsFileSystemWrapper;
-        private readonly ShadowWrapper _stylesheetsFileSystemWrapper;
-        private readonly ShadowWrapper _scriptsFileSystemWrapper;
-        private readonly ShadowWrapper _xsltFileSystemWrapper;
-        private readonly ShadowWrapper _masterPagesFileSystemWrapper;
-        private readonly ShadowWrapper _mvcViewsFileSystemWrapper;
+        private ShadowWrapper _macroPartialFileSystem;
+        private ShadowWrapper _partialViewsFileSystem;
+        private ShadowWrapper _stylesheetsFileSystem;
+        private ShadowWrapper _scriptsFileSystem;
+        private ShadowWrapper _xsltFileSystem;
+        private ShadowWrapper _masterPagesFileSystem;
+        private ShadowWrapper _mvcViewsFileSystem;

        #region Singleton & Constructor

@@ -41,31 +34,46 @@ namespace Umbraco.Core.IO
            get { return Instance; }
        }

+        // for tests only, totally unsafe
+        internal void Reset()
+        {
+            _wrappers.Clear();
+            _providerLookup.Clear();
+            _filesystems.Clear();
+            CreateWellKnownFileSystems();
+        }
+
        private IScopeProviderInternal ScopeProvider
        {
-            // fixme - 'course this is bad, but enough for now
+            // this is bad, but enough for now, and we'll refactor
+            // in v8 when we'll get rid of this class' singleton
+            // beware: means that we capture the "current" scope provider - take care in tests!
            get { return ApplicationContext.Current == null ? null : ApplicationContext.Current.ScopeProvider as IScopeProviderInternal; }
        }

        internal FileSystemProviderManager()
        {
            _config = (FileSystemProvidersSection) ConfigurationManager.GetSection("umbracoConfiguration/FileSystemProviders");
+            CreateWellKnownFileSystems();
+        }

-            _macroPartialFileSystem = new PhysicalFileSystem(SystemDirectories.MacroPartials);
-            _partialViewsFileSystem = new PhysicalFileSystem(SystemDirectories.PartialViews);
-            _stylesheetsFileSystem = new PhysicalFileSystem(SystemDirectories.Css);
-            _scriptsFileSystem = new PhysicalFileSystem(SystemDirectories.Scripts);
-            _xsltFileSystem = new PhysicalFileSystem(SystemDirectories.Xslt);
-            _masterPagesFileSystem = new PhysicalFileSystem(SystemDirectories.Masterpages);
-            _mvcViewsFileSystem = new PhysicalFileSystem(SystemDirectories.MvcViews);
+        private void CreateWellKnownFileSystems()
+        {
+            var macroPartialFileSystem = new PhysicalFileSystem(SystemDirectories.MacroPartials);
+            var partialViewsFileSystem = new PhysicalFileSystem(SystemDirectories.PartialViews);
+            var stylesheetsFileSystem = new PhysicalFileSystem(SystemDirectories.Css);
+            var scriptsFileSystem = new PhysicalFileSystem(SystemDirectories.Scripts);
+            var xsltFileSystem = new PhysicalFileSystem(SystemDirectories.Xslt);
+            var masterPagesFileSystem = new PhysicalFileSystem(SystemDirectories.Masterpages);
+            var mvcViewsFileSystem = new PhysicalFileSystem(SystemDirectories.MvcViews);

-            _macroPartialFileSystem = _macroPartialFileSystemWrapper = new ShadowWrapper(_macroPartialFileSystem, "Views/MacroPartials", ScopeProvider);
-            _partialViewsFileSystem = _partialViewsFileSystemWrapper = new ShadowWrapper(_partialViewsFileSystem, "Views/Partials", ScopeProvider);
-            _stylesheetsFileSystem = _stylesheetsFileSystemWrapper = new ShadowWrapper(_stylesheetsFileSystem, "css", ScopeProvider);
-            _scriptsFileSystem = _scriptsFileSystemWrapper = new ShadowWrapper(_scriptsFileSystem, "scripts", ScopeProvider);
-            _xsltFileSystem = _xsltFileSystemWrapper = new ShadowWrapper(_xsltFileSystem, "xslt", ScopeProvider);
-            _masterPagesFileSystem = _masterPagesFileSystemWrapper = new ShadowWrapper(_masterPagesFileSystem, "masterpages", ScopeProvider);
-            _mvcViewsFileSystem = _mvcViewsFileSystemWrapper = new ShadowWrapper(_mvcViewsFileSystem, "Views", ScopeProvider);
+            _macroPartialFileSystem = new ShadowWrapper(macroPartialFileSystem, "Views/MacroPartials", ScopeProvider);
+            _partialViewsFileSystem = new ShadowWrapper(partialViewsFileSystem, "Views/Partials", ScopeProvider);
+            _stylesheetsFileSystem = new ShadowWrapper(stylesheetsFileSystem, "css", ScopeProvider);
+            _scriptsFileSystem = new ShadowWrapper(scriptsFileSystem, "scripts", ScopeProvider);
+            _xsltFileSystem = new ShadowWrapper(xsltFileSystem, "xslt", ScopeProvider);
+            _masterPagesFileSystem = new ShadowWrapper(masterPagesFileSystem, "masterpages", ScopeProvider);
+            _mvcViewsFileSystem = new ShadowWrapper(mvcViewsFileSystem, "Views", ScopeProvider);

            // filesystems obtained from GetFileSystemProvider are already wrapped and do not need to be wrapped again
            MediaFileSystem = GetFileSystemProvider<MediaFileSystem>();
@@ -80,7 +88,7 @@ namespace Umbraco.Core.IO
        public IFileSystem2 StylesheetsFileSystem { get { return _stylesheetsFileSystem; } }
        public IFileSystem2 ScriptsFileSystem { get { return _scriptsFileSystem; } }
        public IFileSystem2 XsltFileSystem { get { return _xsltFileSystem; } }
-        public IFileSystem2 MasterPagesFileSystem { get { return _masterPagesFileSystem; } }
+        public IFileSystem2 MasterPagesFileSystem { get { return _mvcViewsFileSystem; } }
        public IFileSystem2 MvcViewsFileSystem { get { return _mvcViewsFileSystem; } }
        public MediaFileSystem MediaFileSystem { get; private set; }

@@ -98,56 +106,74 @@ namespace Umbraco.Core.IO
 			//public string ProviderAlias { get; set; }
 		}

-		private readonly ConcurrentDictionary<string, ProviderConstructionInfo> _providerLookup = new ConcurrentDictionary<string, ProviderConstructionInfo>();
-		private readonly ConcurrentDictionary<Type, string> _aliases = new ConcurrentDictionary<Type, string>();
-
        /// <summary>
        /// Gets an underlying (non-typed) filesystem supporting a strongly-typed filesystem.
        /// </summary>
        /// <param name="alias">The alias of the strongly-typed filesystem.</param>
        /// <returns>The non-typed filesystem supporting the strongly-typed filesystem with the specified alias.</returns>
-        /// <remarks>This method should not be used directly, used <see cref="GetFileSystemProvider{TFileSystem}"/> instead.</remarks>
+        /// <remarks>This method should not be used directly, used <see cref="GetFileSystemProvider{TFileSystem}()"/> instead.</remarks>
        public IFileSystem GetUnderlyingFileSystemProvider(string alias)
+        {
+            return GetUnderlyingFileSystemProvider(alias, null);
+        }
+
+        /// <summary>
+        /// Gets an underlying (non-typed) filesystem supporting a strongly-typed filesystem.
+        /// </summary>
+        /// <param name="alias">The alias of the strongly-typed filesystem.</param>
+        /// /// <param name="fallback">A fallback creator for the filesystem.</param>
+        /// <returns>The non-typed filesystem supporting the strongly-typed filesystem with the specified alias.</returns>
+        /// <remarks>This method should not be used directly, used <see cref="GetFileSystemProvider{TFileSystem}()"/> instead.</remarks>
+        private IFileSystem GetUnderlyingFileSystemProvider(string alias, Func<IFileSystem> fallback)
        {
 			// either get the constructor info from cache or create it and add to cache
-	        var ctorInfo = _providerLookup.GetOrAdd(alias, s =>
-		        {
-                    // get config
-			        var providerConfig = _config.Providers[s];
-			        if (providerConfig == null)
-				        throw new ArgumentException(string.Format("No provider found with alias {0}.", s));
+            var ctorInfo = _providerLookup.GetOrAdd(alias, _ => GetUnderlyingFileSystemCtor(alias, fallback));
+            return ctorInfo == null ? fallback() : (IFileSystem) ctorInfo.Constructor.Invoke(ctorInfo.Parameters);
+        }

-                    // get the filesystem type
-			        var providerType = Type.GetType(providerConfig.Type);
-			        if (providerType == null)
-				        throw new InvalidOperationException(string.Format("Could not find type {0}.", providerConfig.Type));
+        private IFileSystem GetUnderlyingFileSystemNoCache(string alias, Func<IFileSystem> fallback)
+        {
+            var ctorInfo = GetUnderlyingFileSystemCtor(alias, fallback);
+            return ctorInfo == null ? fallback() : (IFileSystem) ctorInfo.Constructor.Invoke(ctorInfo.Parameters);
+        }

-                    // ensure it implements IFileSystem
-			        if (providerType.IsAssignableFrom(typeof (IFileSystem)))
-				        throw new InvalidOperationException(string.Format("Type {0} does not implement IFileSystem.", providerType.FullName));
+        private ProviderConstructionInfo GetUnderlyingFileSystemCtor(string alias, Func<IFileSystem> fallback)
+        {
+            // get config
+            var providerConfig = _config.Providers[alias];
+            if (providerConfig == null)
+            {
+                if (fallback != null) return null;
+                throw new ArgumentException(string.Format("No provider found with alias {0}.", alias));
+            }

-                    // find a ctor matching the config parameters
-			        var paramCount = providerConfig.Parameters != null ? providerConfig.Parameters.Count : 0;
-			        var constructor = providerType.GetConstructors().SingleOrDefault(x
-                        => x.GetParameters().Length == paramCount && x.GetParameters().All(y => providerConfig.Parameters.AllKeys.Contains(y.Name)));
-			        if (constructor == null)
-				        throw new InvalidOperationException(string.Format("Type {0} has no ctor matching the {1} configuration parameter(s).", providerType.FullName, paramCount));
+            // get the filesystem type
+            var providerType = Type.GetType(providerConfig.Type);
+            if (providerType == null)
+                throw new InvalidOperationException(string.Format("Could not find type {0}.", providerConfig.Type));

-			        var parameters = new object[paramCount];
-                    if (providerConfig.Parameters != null) // keeps ReSharper happy
-			            for (var i = 0; i < paramCount; i++)
-				            parameters[i] = providerConfig.Parameters[providerConfig.Parameters.AllKeys[i]].Value;
+            // ensure it implements IFileSystem
+            if (providerType.IsAssignableFrom(typeof(IFileSystem)))
+                throw new InvalidOperationException(string.Format("Type {0} does not implement IFileSystem.", providerType.FullName));

-			        return new ProviderConstructionInfo
-				        {
-					        Constructor = constructor,
-					        Parameters = parameters,
-					        //ProviderAlias = s
-				        };
-		        });
+            // find a ctor matching the config parameters
+            var paramCount = providerConfig.Parameters != null ? providerConfig.Parameters.Count : 0;
+            var constructor = providerType.GetConstructors().SingleOrDefault(x
+                => x.GetParameters().Length == paramCount && x.GetParameters().All(y => providerConfig.Parameters.AllKeys.Contains(y.Name)));
+            if (constructor == null)
+                throw new InvalidOperationException(string.Format("Type {0} has no ctor matching the {1} configuration parameter(s).", providerType.FullName, paramCount));

-            // create the fs and return
-			return (IFileSystem) ctorInfo.Constructor.Invoke(ctorInfo.Parameters);
+            var parameters = new object[paramCount];
+            if (providerConfig.Parameters != null) // keeps ReSharper happy
+                for (var i = 0; i < paramCount; i++)
+                    parameters[i] = providerConfig.Parameters[providerConfig.Parameters.AllKeys[i]].Value;
+
+            return new ProviderConstructionInfo
+            {
+                Constructor = constructor,
+                Parameters = parameters,
+                //ProviderAlias = s
+            };
        }

        /// <summary>
@@ -155,38 +181,68 @@ namespace Umbraco.Core.IO
        /// </summary>
        /// <typeparam name="TFileSystem">The type of the filesystem.</typeparam>
        /// <returns>A strongly-typed filesystem of the specified type.</returns>
+        /// <remarks>
+        /// <para>Ideally, this should cache the instances, but that would break backward compatibility, so we
+        /// only do it for our own MediaFileSystem - for everything else, it's the responsibility of the caller
+        /// to ensure that they maintain singletons. This is important for singletons, as each filesystem maintains
+        /// its own shadow and having multiple instances would lead to inconsistencies.</para>
+        /// <para>Note that any filesystem created by this method *after* shadowing begins, will *not* be
+        /// shadowing (and an exception will be thrown by the ShadowWrapper).</para>
+        /// </remarks>
        public TFileSystem GetFileSystemProvider<TFileSystem>()
-			where TFileSystem : FileSystemWrapper
+            where TFileSystem : FileSystemWrapper
        {
-            // deal with known types - avoid infinite loops!
-            if (typeof(TFileSystem) == typeof(MediaFileSystem) && MediaFileSystem != null)
-                return MediaFileSystem as TFileSystem; // else create and return
+            return GetFileSystemProvider<TFileSystem>(null);
+        }

-			// get/cache the alias for the filesystem type
-	        var alias = _aliases.GetOrAdd(typeof (TFileSystem), fsType =>
-		        {
-					// validate the ctor
-					var constructor = fsType.GetConstructors().SingleOrDefault(x
-                        => x.GetParameters().Length == 1 && TypeHelper.IsTypeAssignableFrom<IFileSystem>(x.GetParameters().Single().ParameterType));
-					if (constructor == null)
-						throw new InvalidOperationException("Type " + fsType.FullName + " must inherit from FileSystemWrapper and have a constructor that accepts one parameter of type " + typeof(IFileSystem).FullName + ".");
+        /// <summary>
+        /// Gets a strongly-typed filesystem.
+        /// </summary>
+        /// <typeparam name="TFileSystem">The type of the filesystem.</typeparam>
+        /// <param name="fallback">A fallback creator for the inner filesystem.</param>
+        /// <returns>A strongly-typed filesystem of the specified type.</returns>
+        /// <remarks>
+        /// <para>The fallback creator is used only if nothing is configured.</para>
+        /// <para>Ideally, this should cache the instances, but that would break backward compatibility, so we
+        /// only do it for our own MediaFileSystem - for everything else, it's the responsibility of the caller
+        /// to ensure that they maintain singletons. This is important for singletons, as each filesystem maintains
+        /// its own shadow and having multiple instances would lead to inconsistencies.</para>
+        /// <para>Note that any filesystem created by this method *after* shadowing begins, will *not* be
+        /// shadowing (and an exception will be thrown by the ShadowWrapper).</para>
+        /// </remarks>
+        public TFileSystem GetFileSystemProvider<TFileSystem>(Func<IFileSystem> fallback)
+            where TFileSystem : FileSystemWrapper
+        {
+            var alias = GetFileSystemAlias<TFileSystem>();
+            return (TFileSystem) _filesystems.GetOrAdd(alias, _ =>
+            {
+                // gets the inner fs, create the strongly-typed fs wrapping the inner fs, register & return
+                // so we are double-wrapping here
+                // could be optimized by having FileSystemWrapper inherit from ShadowWrapper, maybe
+                var innerFs = GetUnderlyingFileSystemNoCache(alias, fallback);
+                var shadowWrapper = new ShadowWrapper(innerFs, "typed/" + alias, ScopeProvider);
+                var fs = (IFileSystem2) Activator.CreateInstance(typeof (TFileSystem), shadowWrapper);
+                _wrappers.Add(shadowWrapper); // keeping a reference to the wrapper
+                return fs;
+            });
+        }

-                    // find the attribute and get the alias
-					var attr = (FileSystemProviderAttribute) fsType.GetCustomAttributes(typeof(FileSystemProviderAttribute), false).SingleOrDefault();
-					if (attr == null)
-						throw new InvalidOperationException("Type " + fsType.FullName + "is missing the required FileSystemProviderAttribute.");
+        private string GetFileSystemAlias<TFileSystem>()
+        {
+            var fsType = typeof(TFileSystem);

-			        return attr.Alias;
-		        });
+            // validate the ctor
+            var constructor = fsType.GetConstructors().SingleOrDefault(x
+                => x.GetParameters().Length == 1 && TypeHelper.IsTypeAssignableFrom<IFileSystem>(x.GetParameters().Single().ParameterType));
+            if (constructor == null)
+                throw new InvalidOperationException("Type " + fsType.FullName + " must inherit from FileSystemWrapper and have a constructor that accepts one parameter of type " + typeof(IFileSystem).FullName + ".");

-            // gets the inner fs, create the strongly-typed fs wrapping the inner fs, register & return
-            // so we are double-wrapping here
-            // could be optimized by having FileSystemWrapper inherit from ShadowWrapper, maybe
-            var innerFs = GetUnderlyingFileSystemProvider(alias);
-            var shadowWrapper = new ShadowWrapper(innerFs, "typed/" + alias, ScopeProvider);
-	        var fs = (TFileSystem) Activator.CreateInstance(typeof (TFileSystem), shadowWrapper);
-            _wrappers.Add(shadowWrapper); // keeping a weak reference to the wrapper
-	        return fs;
+            // find the attribute and get the alias
+            var attr = (FileSystemProviderAttribute)fsType.GetCustomAttributes(typeof(FileSystemProviderAttribute), false).SingleOrDefault();
+            if (attr == null)
+                throw new InvalidOperationException("Type " + fsType.FullName + "is missing the required FileSystemProviderAttribute.");
+
+            return attr.Alias;
        }

        #endregion
@@ -199,30 +255,37 @@ namespace Umbraco.Core.IO
            var wrappers = new ShadowWrapper[typed.Length + 7];
            var i = 0;
            while (i < typed.Length) wrappers[i] = typed[i++];
-            wrappers[i++] = _macroPartialFileSystemWrapper;
-            wrappers[i++] = _partialViewsFileSystemWrapper;
-            wrappers[i++] = _stylesheetsFileSystemWrapper;
-            wrappers[i++] = _scriptsFileSystemWrapper;
-            wrappers[i++] = _xsltFileSystemWrapper;
-            wrappers[i++] = _masterPagesFileSystemWrapper;
-            wrappers[i] = _mvcViewsFileSystemWrapper;
+            wrappers[i++] = _macroPartialFileSystem;
+            wrappers[i++] = _partialViewsFileSystem;
+            wrappers[i++] = _stylesheetsFileSystem;
+            wrappers[i++] = _scriptsFileSystem;
+            wrappers[i++] = _xsltFileSystem;
+            wrappers[i++] = _masterPagesFileSystem;
+            wrappers[i] = _mvcViewsFileSystem;

            return new ShadowFileSystems(id, wrappers);
        }

        #endregion

-        private class WeakSet<T>
+        private class ConcurrentSet<T>
            where T : class
        {
-            private readonly HashSet<WeakReference<T>> _set = new HashSet<WeakReference<T>>();
+            private readonly HashSet<T> _set = new HashSet<T>();

            public void Add(T item)
            {
                lock (_set)
                {
-                    _set.Add(new WeakReference<T>(item));
-                    CollectLocked();
+                    _set.Add(item);
+                }
+            }
+
+            public void Clear()
+            {
+                lock (_set)
+                {
+                    _set.Clear();
                }
            }

@@ -230,23 +293,9 @@ namespace Umbraco.Core.IO
            {
                lock (_set)
                {
-                    CollectLocked();
-                    return _set.Select(x =>
-                    {
-                        T target;
-                        return x.TryGetTarget(out target) ? target : null;
-                    }).WhereNotNull().ToArray();
+                    return _set.ToArray();
                }
            }
-
-            private void CollectLocked()
-            {
-                _set.RemoveWhere(x =>
-                {
-                    T target;
-                    return x.TryGetTarget(out target) == false;
-                });
-            }
        }
    }
 }
@@ -4,38 +4,144 @@ using System.IO;

 namespace Umbraco.Core.IO
 {
-	public interface IFileSystem
+    /// <summary>
+    /// Provides methods allowing the manipulation of files within an Umbraco application.
+    /// </summary>
+    public interface IFileSystem
    {
+        /// <summary>
+        /// Gets all directories matching the given path.
+        /// </summary>
+        /// <param name="path">The path to the directories.</param>
+        /// <returns>
+        /// The <see cref="IEnumerable{String}"/> representing the matched directories.
+        /// </returns>
        IEnumerable<string> GetDirectories(string path);

+        /// <summary>
+        /// Deletes the specified directory.
+        /// </summary>
+        /// <param name="path">The name of the directory to remove.</param>
        void DeleteDirectory(string path);

+        /// <summary>
+        /// Deletes the specified directory and, if indicated, any subdirectories and files in the directory.
+        /// </summary>
+        /// <remarks>Azure blob storage has no real concept of directories so deletion is always recursive.</remarks>
+        /// <param name="path">The name of the directory to remove.</param>
+        /// <param name="recursive">Whether to remove directories, subdirectories, and files in path.</param>
        void DeleteDirectory(string path, bool recursive);

+        /// <summary>
+        /// Determines whether the specified directory exists.
+        /// </summary>
+        /// <param name="path">The directory to check.</param>
+        /// <returns>
+        /// <c>True</c> if the directory exists and the user has permission to view it; otherwise <c>false</c>.
+        /// </returns>
        bool DirectoryExists(string path);

+        /// <summary>
+        /// Adds a file to the file system.
+        /// </summary>
+        /// <param name="path">The path to the given file.</param>
+        /// <param name="stream">The <see cref="Stream"/> containing the file contents.</param>
        void AddFile(string path, Stream stream);

+        /// <summary>
+        /// Adds a file to the file system.
+        /// </summary>
+        /// <param name="path">The path to the given file.</param>
+        /// <param name="stream">The <see cref="Stream"/> containing the file contents.</param>
+        /// <param name="overrideIfExists">Whether to override the file if it already exists.</param>
        void AddFile(string path, Stream stream, bool overrideIfExists);

+        /// <summary>
+        /// Gets all files matching the given path.
+        /// </summary>
+        /// <param name="path">The path to the files.</param>
+        /// <returns>
+        /// The <see cref="IEnumerable{String}"/> representing the matched files.
+        /// </returns>
        IEnumerable<string> GetFiles(string path);

+        /// <summary>
+        /// Gets all files matching the given path and filter.
+        /// </summary>
+        /// <param name="path">The path to the files.</param>
+        /// <param name="filter">A filter that allows the querying of file extension. <example>*.jpg</example></param>
+        /// <returns>
+        /// The <see cref="IEnumerable{String}"/> representing the matched files.
+        /// </returns>
        IEnumerable<string> GetFiles(string path, string filter);

+        /// <summary>
+        /// Gets a <see cref="Stream"/> representing the file at the gieven path.
+        /// </summary>
+        /// <param name="path">The path to the file.</param>
+        /// <returns>
+        /// <see cref="Stream"/>.
+        /// </returns>
        Stream OpenFile(string path);

+        /// <summary>
+        /// Deletes the specified file.
+        /// </summary>
+        /// <param name="path">The name of the file to remove.</param>
        void DeleteFile(string path);

+        /// <summary>
+        /// Determines whether the specified file exists.
+        /// </summary>
+        /// <param name="path">The file to check.</param>
+        /// <returns>
+        /// <c>True</c> if the file exists and the user has permission to view it; otherwise <c>false</c>.
+        /// </returns>
        bool FileExists(string path);

+        /// <summary>
+        /// Returns the application relative path to the file.
+        /// </summary>
+        /// <param name="fullPathOrUrl">The full path or url.</param>
+        /// <returns>
+        /// The <see cref="string"/> representing the relative path.
+        /// </returns>
        string GetRelativePath(string fullPathOrUrl);

+        /// <summary>
+        /// Gets the full qualified path to the file.
+        /// </summary>
+        /// <param name="path">The file to return the full path for.</param>
+        /// <returns>
+        /// The <see cref="string"/> representing the full path.
+        /// </returns>
        string GetFullPath(string path);

+        /// <summary>
+        /// Returns the application relative url to the file.
+        /// </summary>
+        /// <param name="path">The path to return the url for.</param>
+        /// <returns>
+        /// <see cref="string"/> representing the relative url.
+        /// </returns>
        string GetUrl(string path);

+        /// <summary>
+        /// Gets the last modified date/time of the file, expressed as a UTC value.
+        /// </summary>
+        /// <param name="path">The path to the file.</param>
+        /// <returns>
+        /// <see cref="DateTimeOffset"/>.
+        /// </returns>
        DateTimeOffset GetLastModified(string path);

+        /// <summary>
+        /// Gets the created date/time of the file, expressed as a UTC value.
+        /// </summary>
+        /// <param name="path">The path to the file.</param>
+        /// <returns>
+        /// <see cref="DateTimeOffset"/>.
+        /// </returns>
        DateTimeOffset GetCreated(string path);
    }

@@ -31,6 +31,7 @@ namespace Umbraco.Core.IO
        private long _folderCounter;
        private bool _folderCounterInitialized;

+        [Obsolete("This should no longer be used, image manipulation should be done via ImageProcessor, Umbraco no longer generates '_thumb' files for media")]
        private static readonly Dictionary<int, string> DefaultSizes = new Dictionary<int, string>
        {
            { 100, "thumb" },
@@ -263,7 +264,7 @@ namespace Umbraco.Core.IO
            var filename = Path.GetFileName(sourcepath);
            var filepath = GetMediaPath(filename, content.Key, propertyType.Key);
            this.CopyFile(sourcepath, filepath);
-            CopyThumbnails(sourcepath, filepath);
+            
            return filepath;
        }

@@ -302,7 +303,7 @@ namespace Umbraco.Core.IO
        {
            var property = GetProperty(content, propertyTypeAlias);
            var svalue = property.Value as string;
-            var oldpath = svalue == null ? null : GetRelativePath(svalue); // FIXME DELETE?
+            var oldpath = svalue == null ? null : GetRelativePath(svalue);
            if (string.IsNullOrWhiteSpace(oldpath) == false && oldpath != filepath)
                DeleteFile(oldpath, true);
            property.Value = GetUrl(filepath);
@@ -312,29 +313,17 @@ namespace Umbraco.Core.IO
            }
        }

-        // sets a file for the FileUpload property editor
-        // ie generates thumbnails and populates autofill properties
+        /// <summary>
+        /// Sets a file for the FileUpload property editor and populates autofill properties
+        /// </summary>
+        /// <param name="content"></param>
+        /// <param name="property"></param>
+        /// <param name="filepath"></param>
+        /// <param name="filestream"></param>
        private void SetUploadFile(IContentBase content, Property property, string filepath, Stream filestream)
-        {
-            // check if file is an image (and supports resizing and thumbnails etc)
-            var extension = Path.GetExtension(filepath);
-            var isImage = IsImageFile(extension);
-
-            // specific stuff for images (thumbnails etc)
-            if (isImage)
-            {
-                using (var image = Image.FromStream(filestream))
-                {
-                    // use one image for all
-                    GenerateThumbnails(image, filepath, property.PropertyType);
-                    _uploadAutoFillProperties.Populate(content, property.Alias, filepath, filestream, image);
-                }
-            }
-            else
-            {
-                // will use filepath for extension, and filestream for length
-                _uploadAutoFillProperties.Populate(content, property.Alias, filepath, filestream);
-            }
+        {            
+            // will use filepath for extension, and filestream for length
+            _uploadAutoFillProperties.Populate(content, property.Alias, filepath, filestream);
        }

        #endregion
@@ -401,6 +390,7 @@ namespace Umbraco.Core.IO

        // note: this does not find 'custom' thumbnails?
        // will find _thumb and _big-thumb but NOT _custom?
+        [Obsolete("This should no longer be used, image manipulation should be done via ImageProcessor, Umbraco no longer generates '_thumb' files for media")]
        public IEnumerable<string> GetThumbnails(string path)
        {
            var parentDirectory = Path.GetDirectoryName(path);
@@ -421,12 +411,14 @@ namespace Umbraco.Core.IO
            DeleteThumbnails(path);
        }

+        [Obsolete("This should no longer be used, image manipulation should be done via ImageProcessor, Umbraco no longer generates '_thumb' files for media")]
        public void DeleteThumbnails(string path)
        {
            GetThumbnails(path)
                .ForEach(x => base.DeleteFile(x));
        }

+        [Obsolete("This should no longer be used, image manipulation should be done via ImageProcessor, Umbraco no longer generates '_thumb' files for media")]
        public void CopyThumbnails(string sourcePath, string targetPath)
        {
            var targetPathBase = Path.GetDirectoryName(targetPath) ?? "";
@@ -466,27 +458,6 @@ namespace Umbraco.Core.IO
                        var dir = Path.GetDirectoryName(file);
                        DeleteDirectory(dir, true);
                    }
-
-                    // I don't even understand...
-                    /*
-
-                    var relativeFilePath = GetRelativePath(file); // fixme - should be relative already
-                    if (FileExists(relativeFilePath) == false) return;
-
-                    var parentDirectory = Path.GetDirectoryName(relativeFilePath);
-
-                    // don't want to delete the media folder if not using directories.
-                    if (_contentSection.UploadAllowDirectories && parentDirectory != GetRelativePath("/"))
-                    {
-                        //issue U4-771: if there is a parent directory the recursive parameter should be true
-                        DeleteDirectory(parentDirectory, string.IsNullOrEmpty(parentDirectory) == false);
-                    }
-                    else
-                    {
-                        DeleteFile(file, true);
-                    }
-
-                    */
                }
                catch (Exception e)
                {
@@ -500,6 +471,7 @@ namespace Umbraco.Core.IO

        #region GenerateThumbnails

+        [Obsolete("This should no longer be used, image manipulation should be done via ImageProcessor, Umbraco no longer generates '_thumb' files for media")]
        public IEnumerable<ResizedImage> GenerateThumbnails(
            Image image,
            string filepath,
@@ -521,6 +493,7 @@ namespace Umbraco.Core.IO
            return GenerateThumbnails(image, filepath, additionalSizes);
        }

+        [Obsolete("This should no longer be used, image manipulation should be done via ImageProcessor, Umbraco no longer generates '_thumb' files for media")]
        public IEnumerable<ResizedImage> GenerateThumbnails(
            Image image,
            string filepath,
@@ -543,19 +516,21 @@ namespace Umbraco.Core.IO
                .ToList(); // now
        }

+        [Obsolete("This should no longer be used, image manipulation should be done via ImageProcessor, Umbraco no longer generates '_thumb' files for media")]
        public IEnumerable<ResizedImage> GenerateThumbnails(
            Stream filestream,
            string filepath,
            PropertyType propertyType)
        {
            // get the original image from the original stream
-            if (filestream.CanSeek) filestream.Seek(0, 0); // fixme - what if we cannot seek?
+            if (filestream.CanSeek) filestream.Seek(0, 0);
            using (var image = Image.FromStream(filestream))
            {
                return GenerateThumbnails(image, filepath, propertyType);
            }
        }

+        [Obsolete("This should no longer be used, image manipulation should be done via ImageProcessor, Umbraco no longer generates '_thumb' files for media")]
        public IEnumerable<ResizedImage> GenerateThumbnails(
            Image image,
            string filepath,
@@ -577,16 +552,19 @@ namespace Umbraco.Core.IO

        #region GenerateResized - Generate at resized filepath derived from origin filepath

+        [Obsolete("This should no longer be used, image manipulation should be done via ImageProcessor, Umbraco no longer generates '_thumb' files for media")]
        public ResizedImage GenerateResized(Image originImage, string originFilepath, string sizeName, int maxWidthHeight)
        {
            return GenerateResized(originImage, originFilepath, sizeName, maxWidthHeight, -1, -1);
        }

+        [Obsolete("This should no longer be used, image manipulation should be done via ImageProcessor, Umbraco no longer generates '_thumb' files for media")]
        public ResizedImage GenerateResized(Image originImage, string originFilepath, string sizeName, int fixedWidth, int fixedHeight)
        {
            return GenerateResized(originImage, originFilepath, sizeName, -1, fixedWidth, fixedHeight);
        }

+        [Obsolete("This should no longer be used, image manipulation should be done via ImageProcessor, Umbraco no longer generates '_thumb' files for media")]
        public ResizedImage GenerateResized(Image originImage, string originFilepath, string sizeName, int maxWidthHeight, int fixedWidth, int fixedHeight)
        {
            if (string.IsNullOrWhiteSpace(sizeName))
@@ -602,16 +580,19 @@ namespace Umbraco.Core.IO

        #region GenerateResizedAt - Generate at specified resized filepath

+        [Obsolete("This should no longer be used, image manipulation should be done via ImageProcessor, Umbraco no longer generates '_thumb' files for media")]
        public ResizedImage GenerateResizedAt(Image originImage, string resizedFilepath, int maxWidthHeight)
        {
            return GenerateResizedAt(originImage, resizedFilepath, maxWidthHeight, -1, -1);
        }

+        [Obsolete("This should no longer be used, image manipulation should be done via ImageProcessor, Umbraco no longer generates '_thumb' files for media")]
        public ResizedImage GenerateResizedAt(Image originImage, int fixedWidth, int fixedHeight, string resizedFilepath)
        {
            return GenerateResizedAt(originImage, resizedFilepath, -1, fixedWidth, fixedHeight);
        }

+        [Obsolete("This should no longer be used, image manipulation should be done via ImageProcessor, Umbraco no longer generates '_thumb' files for media")]
        public ResizedImage GenerateResizedAt(Image originImage, string resizedFilepath, int maxWidthHeight, int fixedWidth, int fixedHeight)
        {
            // target dimensions
@@ -658,9 +639,6 @@ namespace Umbraco.Core.IO
                var rect = new Rectangle(0, 0, width, height);
                graphics.DrawImage(originImage, rect, 0, 0, originImage.Width, originImage.Height, GraphicsUnit.Pixel);

-                // copy metadata
-                // fixme - er... no?
-
                // get an encoder - based upon the file type
                var extension = (Path.GetExtension(resizedFilepath) ?? "").TrimStart('.').ToLowerInvariant();
                var encoders = ImageCodecInfo.GetImageEncoders();
@@ -723,6 +701,7 @@ namespace Umbraco.Core.IO

        #region Inner classes

+        [Obsolete("This should no longer be used, image manipulation should be done via ImageProcessor, Umbraco no longer generates '_thumb' files for media")]
        public class ResizedImage
        {
            public ResizedImage()
@@ -155,8 +155,10 @@ namespace Umbraco.Core.IO
            if (directory == null) throw new InvalidOperationException("Could not get directory.");
            Directory.CreateDirectory(directory); // ensure it exists

-            if (stream.CanSeek) // fixme - what else?
-                stream.Seek(0, 0);
+            // if can seek, be safe and go back to start, else...
+            // hope that the stream hasn't been read already
+            if (stream.CanSeek)
+                stream.Seek(0, SeekOrigin.Begin);

            using (var destination = (Stream) File.Create(fullPath))
                stream.CopyTo(destination);
@@ -286,7 +288,9 @@ namespace Umbraco.Core.IO
            var opath = path;
            path = EnsureDirectorySeparatorChar(path);

-            // fixme - this part should go!
+            // TODO in v8 this should be cleaned up
+            // the first part should probably removed
+
            // not sure what we are doing here - so if input starts with a (back) slash,
            // we assume it's not a FS relative path and we try to convert it... but it
            // really makes little sense?
@@ -218,11 +218,11 @@ namespace Umbraco.Core.IO
            var normPath = NormPath(path);
            var shadows = Nodes.Where(kvp => IsChild(normPath, kvp.Key)).ToArray();
            var files = filter != null ? _fs.GetFiles(path, filter) : _fs.GetFiles(path);
-            var regexFilter = FilterToRegex(filter);
+            var wildcard = filter == null ? null : new WildcardExpression(filter);
            return files
                .Except(shadows.Where(kvp => (kvp.Value.IsFile && kvp.Value.IsDelete) || kvp.Value.IsDir)
                    .Select(kvp => kvp.Key))
-                .Union(shadows.Where(kvp => kvp.Value.IsFile && kvp.Value.IsExist && FilterByRegex(kvp.Key, regexFilter)).Select(kvp => kvp.Key))
+                .Union(shadows.Where(kvp => kvp.Value.IsFile && kvp.Value.IsExist && (wildcard == null || wildcard.IsMatch(kvp.Key))).Select(kvp => kvp.Key))
                .Distinct();
        }

@@ -326,32 +326,65 @@ namespace Umbraco.Core.IO
            _sfs.AddFile(path, physicalPath, overrideIfExists, copy);
            Nodes[normPath] = new ShadowNode(false, false);
        }
-        
-        /// <summary>
-        /// Helper function for filtering keys by Regex if a filter is specified.
-        /// </summary>
-        /// <param name="input"></param>
-        /// <param name="regexFilter"></param>
-        /// <returns></returns>
-        internal static bool FilterByRegex(string input, string regexFilter)
-        {
-            if (regexFilter == null) return true;
-            return regexFilter != string.Empty && Regex.IsMatch(input, regexFilter);
-        }

-        /// <summary>
-        /// Transforms a filter pattern into a Regex pattern
-        /// </summary>
-        /// <param name="pattern"></param>
-        /// <returns></returns>
-        /// <remarks>
-        /// Appending '$' only if not containing wildcard is stupid and broken.
-        /// It is however what seems to be what they're doing in .NET so we need to match the functionality.
-        /// </remarks>
-        internal static string FilterToRegex(string pattern)
+        // copied from System.Web.Util.Wildcard internal
+        internal class WildcardExpression
        {
-            if (pattern == null) return null;
-            return "^" + Regex.Escape(pattern).Replace("\\*", ".*").Replace("\\?", ".") + (pattern.Contains("*") ? string.Empty : "$");
+            private readonly string _pattern;
+            private readonly bool _caseInsensitive;
+            private Regex _regex;
+
+            private static Regex metaRegex = new Regex("[\\+\\{\\\\\\[\\|\\(\\)\\.\\^\\$]");
+            private static Regex questRegex = new Regex("\\?");
+            private static Regex starRegex = new Regex("\\*");
+            private static Regex commaRegex = new Regex(",");
+            private static Regex slashRegex = new Regex("(?=/)");
+            private static Regex backslashRegex = new Regex("(?=[\\\\:])");
+
+            public WildcardExpression(string pattern, bool caseInsensitive = true)
+            {
+                _pattern = pattern;
+                _caseInsensitive = caseInsensitive;
+            }
+
+            private void EnsureRegex(string pattern)
+            {
+                if (_regex != null) return;
+
+                var options = RegexOptions.None;
+
+                // match right-to-left (for speed) if the pattern starts with a *
+
+                if (pattern.Length > 0 && pattern[0] == '*')
+                    options = RegexOptions.RightToLeft | RegexOptions.Singleline;
+                else
+                    options = RegexOptions.Singleline;
+
+                // case insensitivity
+
+                if (_caseInsensitive)
+                    options |= RegexOptions.IgnoreCase | RegexOptions.CultureInvariant;
+
+                // Remove regex metacharacters
+
+                pattern = metaRegex.Replace(pattern, "\\$0");
+
+                // Replace wildcard metacharacters with regex codes
+
+                pattern = questRegex.Replace(pattern, ".");
+                pattern = starRegex.Replace(pattern, ".*");
+                pattern = commaRegex.Replace(pattern, "\\z|\\A");
+
+                // anchor the pattern at beginning and end, and return the regex
+
+                _regex = new Regex("\\A" + pattern + "\\z", options);
+            }
+
+            public bool IsMatch(string input)
+            {
+                EnsureRegex(_pattern);
+                return _regex.IsMatch(input);
+            }
        }
    }
 }
@@ -69,6 +69,11 @@ namespace Umbraco.Core.IO
            {
                var isScoped = _scopeProvider != null && _scopeProvider.AmbientScope != null && _scopeProvider.AmbientScope.ScopedFileSystems;

+                // if the filesystem is created *after* shadowing starts, it won't be shadowing
+                // better not ignore that situation and raised a meaningful (?) exception
+                if (isScoped && _shadowFileSystem == null)
+                    throw new Exception("The filesystems are shadowing, but this filesystem is not.");
+
                return isScoped
                    ? _shadowFileSystem
                    : _innerFileSystem;
@@ -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; }
@@ -16,7 +16,7 @@ namespace Umbraco.Core.Logging
    /// This is an old/deprecated logger and has been superceded by ParallelForwardingAppender which is included in Umbraco and 
    /// also by AsyncForwardingAppender in the Log4Net.Async library.
 	/// </summary>
-	[Obsolete("This is superceded by the ParallelForwardingAppender, this will be removed in v8")]
+	[Obsolete("This is superceded by the ParallelForwardingAppender, this will be removed in v8, do not use this")]
    [EditorBrowsable(EditorBrowsableState.Never)]
 	public class AsynchronousRollingFileAppender : RollingFileAppender
 	{
@@ -2,10 +2,13 @@
 using System.Diagnostics;
 using System.IO;
 using System.Linq;
+using System.Reflection;
 using System.Threading;
 using System.Web;
 using log4net;
 using log4net.Config;
+using Umbraco.Core.Configuration;
+using Umbraco.Core.Diagnostics;

 namespace Umbraco.Core.Logging
 {
@@ -56,18 +59,72 @@ namespace Umbraco.Core.Logging
 		internal ILog LoggerFor(object getTypeFromInstance)
 		{
 			if (getTypeFromInstance == null) throw new ArgumentNullException("getTypeFromInstance");
-			
+
 			return LogManager.GetLogger(getTypeFromInstance.GetType());
 		}
-        
+
 		public void Error(Type callingType, string message, Exception exception)
 		{
-			var logger = LogManager.GetLogger(callingType);
-			if (logger != null)
-				logger.Error((message), exception);
+            var logger = LogManager.GetLogger(callingType);
+		    if (logger == null) return;
+
+		    var dump = false;
+
+		    if (IsTimeoutThreadAbortException(exception))
+		    {
+		        message += "\r\nThe thread has been aborted, because the request has timed out.";
+
+                // dump if configured, or if stacktrace contains Monitor.ReliableEnter
+		        dump = UmbracoConfig.For.CoreDebug().DumpOnTimeoutThreadAbort || IsMonitorEnterThreadAbortException(exception);
+
+                // dump if it is ok to dump (might have a cap on number of dump...)
+		        dump &= MiniDump.OkToDump();
+		    }
+
+            if (dump)
+		    {
+                try
+                {
+                    var dumped = MiniDump.Dump(withException: true);
+                    message += dumped
+                        ? "\r\nA minidump was created in App_Data/MiniDump"
+                        : "\r\nFailed to create a minidump";
+                }
+                catch (Exception e)
+                {
+                    message += string.Format("\r\nFailed to create a minidump ({0}: {1})", e.GetType().FullName, e.Message);
+                }
+            }
+
+            logger.Error(message, exception);
 		}

-		public void Warn(Type callingType, string message, params Func<object>[] formatItems)
+        private static bool IsMonitorEnterThreadAbortException(Exception exception)
+        {
+            var abort = exception as ThreadAbortException;
+            if (abort == null) return false;
+
+            var stacktrace = abort.StackTrace;
+            return stacktrace.Contains("System.Threading.Monitor.ReliableEnter");
+        }
+
+        private static bool IsTimeoutThreadAbortException(Exception exception)
+        {
+            var abort = exception as ThreadAbortException;
+            if (abort == null) return false;
+
+            if (abort.ExceptionState == null) return false;
+
+            var stateType = abort.ExceptionState.GetType();
+            if (stateType.FullName != "System.Web.HttpApplication+CancelModuleException") return false;
+
+            var timeoutField = stateType.GetField("_timeout", BindingFlags.Instance | BindingFlags.NonPublic);
+            if (timeoutField == null) return false;
+
+            return (bool) timeoutField.GetValue(abort.ExceptionState);
+        }
+
+        public void Warn(Type callingType, string message, params Func<object>[] formatItems)
 		{
 			var logger = LogManager.GetLogger(callingType);
 			if (logger == null || logger.IsWarnEnabled == false) return;
@@ -82,7 +139,7 @@ namespace Umbraco.Core.Logging
 			if (showHttpTrace && HttpContext.Current != null)
 			{
 				HttpContext.Current.Trace.Warn(callingType.Name, string.Format(message, formatItems.Select(x => x.Invoke()).ToArray()));
-			}	
+			}

 			var logger = LogManager.GetLogger(callingType);
 			if (logger == null || logger.IsWarnEnabled == false) return;
@@ -99,7 +156,7 @@ namespace Umbraco.Core.Logging
            var logger = LogManager.GetLogger(callingType);
            if (logger == null || logger.IsWarnEnabled == false) return;
            var executedParams = formatItems.Select(x => x.Invoke()).ToArray();
-            logger.WarnFormat((message) + ". Exception: " + e, executedParams);		
+            logger.WarnFormat((message) + ". Exception: " + e, executedParams);
 		}

 		/// <summary>
@@ -13,301 +13,8 @@ namespace Umbraco.Core.Logging
    /// <remarks>
    /// Borrowed from https://github.com/cjbhaines/Log4Net.Async - will reference Nuget packages directly in v8
    /// </remarks>
-    public class ParallelForwardingAppender : AsyncForwardingAppenderBase, IDisposable
+    [Obsolete("Use the Log4Net.Async.ParallelForwardingAppender instead this will be removed in future versions")]
+    public class ParallelForwardingAppender : Log4Net.Async.ParallelForwardingAppender
    {
-        #region Private Members
-
-        private const int DefaultBufferSize = 1000;
-        private BlockingCollection<LoggingEventContext> _loggingEvents;
-        private CancellationTokenSource _loggingCancelationTokenSource;
-        private CancellationToken _loggingCancelationToken;
-        private Task _loggingTask;
-        private Double _shutdownFlushTimeout = 2;
-        private TimeSpan _shutdownFlushTimespan = TimeSpan.FromSeconds(2);
-        private static readonly Type ThisType = typeof(ParallelForwardingAppender);
-        private volatile bool shutDownRequested;
-        private int? bufferSize = DefaultBufferSize;
-
-        #endregion Private Members
-
-        #region Properties
-
-        /// <summary>
-        /// Gets or sets the number of LoggingEvents that will be buffered.  Set to null for unlimited.
-        /// </summary>
-        public override int? BufferSize
-        {
-            get { return bufferSize; }
-            set { bufferSize = value; }
-        }
-
-        public int BufferEntryCount
-        {
-            get
-            {
-                if (_loggingEvents == null) return 0;
-                return _loggingEvents.Count;
-            }
-        }
-
-        /// <summary>
-        /// Gets or sets the time period in which the system will wait for appenders to flush before canceling the background task.
-        /// </summary>
-        public Double ShutdownFlushTimeout
-        {
-            get
-            {
-                return _shutdownFlushTimeout;
-            }
-            set
-            {
-                _shutdownFlushTimeout = value;
-            }
-        }
-
-        protected override string InternalLoggerName
-        {
-            get
-            {
-                {
-                    return "ParallelForwardingAppender";
-                }
-            }
-        }
-
-        #endregion Properties
-
-        #region Startup
-
-        public override void ActivateOptions()
-        {
-            base.ActivateOptions();
-            _shutdownFlushTimespan = TimeSpan.FromSeconds(_shutdownFlushTimeout);
-            StartForwarding();
-        }
-
-        private void StartForwarding()
-        {
-            if (shutDownRequested)
-            {
-                return;
-            }
-            //Create a collection which will block the thread and wait for new entries
-            //if the collection is empty
-            if (BufferSize.HasValue && BufferSize > 0)
-            {
-                _loggingEvents = new BlockingCollection<LoggingEventContext>(BufferSize.Value);
-            }
-            else
-            {
-                //No limit on the number of events.
-                _loggingEvents = new BlockingCollection<LoggingEventContext>();
-            }
-            //The cancellation token is used to cancel a running task gracefully.
-            _loggingCancelationTokenSource = new CancellationTokenSource();
-            _loggingCancelationToken = _loggingCancelationTokenSource.Token;
-            _loggingTask = new Task(SubscriberLoop, _loggingCancelationToken);
-            _loggingTask.Start();
-        }
-
-        #endregion Startup
-
-        #region Shutdown
-
-        private void CompleteSubscriberTask()
-        {
-            shutDownRequested = true;
-            if (_loggingEvents == null || _loggingEvents.IsAddingCompleted)
-            {
-                return;
-            }
-            //Don't allow more entries to be added.
-            _loggingEvents.CompleteAdding();
-            //Allow some time to flush
-            Thread.Sleep(_shutdownFlushTimespan);
-            if (!_loggingTask.IsCompleted && !_loggingCancelationToken.IsCancellationRequested)
-            {
-                _loggingCancelationTokenSource.Cancel();
-                //Wait here so that the error logging messages do not get into a random order.
-                //Don't pass the cancellation token because we are not interested
-                //in catching the OperationCanceledException that results.
-                _loggingTask.Wait();
-            }
-            if (!_loggingEvents.IsCompleted)
-            {
-                ForwardInternalError("The buffer was not able to be flushed before timeout occurred.", null, ThisType);
-            }
-        }
-
-        protected override void OnClose()
-        {
-            CompleteSubscriberTask();
-            base.OnClose();
-        }
-
-        #endregion Shutdown
-
-        #region Appending
-
-        protected override void Append(LoggingEvent loggingEvent)
-        {
-            if (_loggingEvents == null || _loggingEvents.IsAddingCompleted || loggingEvent == null)
-            {
-                return;
-            }
-
-            loggingEvent.Fix = Fix;
-            //In the case where blocking on a full collection, and the task is subsequently completed, the cancellation token
-            //will prevent the entry from attempting to add to the completed collection which would result in an exception.
-            _loggingEvents.Add(new LoggingEventContext(loggingEvent, HttpContext), _loggingCancelationToken);
-        }
-
-        protected override void Append(LoggingEvent[] loggingEvents)
-        {
-            if (_loggingEvents == null || _loggingEvents.IsAddingCompleted || loggingEvents == null)
-            {
-                return;
-            }
-
-            foreach (var loggingEvent in loggingEvents)
-            {
-                Append(loggingEvent);
-            }
-        }
-
-        #endregion Appending
-
-        #region Forwarding
-
-        /// <summary>
-        /// Iterates over a BlockingCollection containing LoggingEvents.
-        /// </summary>
-        private void SubscriberLoop()
-        {
-            Thread.CurrentThread.Name = String.Format("{0} ParallelForwardingAppender Subscriber Task", Name);
-            //The task will continue in a blocking loop until
-            //the queue is marked as adding completed, or the task is canceled.
-            try
-            {
-                //This call blocks until an item is available or until adding is completed
-                foreach (var entry in _loggingEvents.GetConsumingEnumerable(_loggingCancelationToken))
-                {
-                    HttpContext = entry.HttpContext;
-                    ForwardLoggingEvent(entry.LoggingEvent, ThisType);
-                }
-            }
-            catch (OperationCanceledException ex)
-            {
-                //The thread was canceled before all entries could be forwarded and the collection completed.
-                ForwardInternalError("Subscriber task was canceled before completion.", ex, ThisType);
-                //Cancellation is called in the CompleteSubscriberTask so don't call that again.
-            }
-            catch (ThreadAbortException ex)
-            {
-                //Thread abort may occur on domain unload.
-                ForwardInternalError("Subscriber task was aborted.", ex, ThisType);
-                //Cannot recover from a thread abort so complete the task.
-                CompleteSubscriberTask();
-                //The exception is swallowed because we don't want the client application
-                //to halt due to a logging issue.
-            }
-            catch (Exception ex)
-            {
-                //On exception, try to log the exception
-                ForwardInternalError("Subscriber task error in forwarding loop.", ex, ThisType);
-                //Any error in the loop is going to be some sort of extenuating circumstance from which we
-                //probably cannot recover anyway.   Complete subscribing.
-                CompleteSubscriberTask();
-            }
-        }
-
-        #endregion Forwarding
-
-        #region IDisposable Implementation
-
-        private bool _disposed = false;
-
-        //Implement IDisposable.
-        public void Dispose()
-        {
-            Dispose(true);
-            GC.SuppressFinalize(this);
-        }
-
-        protected virtual void Dispose(bool disposing)
-        {
-            if (!_disposed)
-            {
-                if (disposing)
-                {
-                    if (_loggingTask != null)
-                    {
-                        if (!(_loggingTask.IsCanceled || _loggingTask.IsCompleted || _loggingTask.IsFaulted))
-                        {
-                            try
-                            {
-                                CompleteSubscriberTask();
-                            }
-                            catch (Exception ex)
-                            {
-                                LogLog.Error(ThisType, "Exception Completing Subscriber Task in Dispose Method", ex);
-                            }
-                        }
-                        try
-                        {
-                            _loggingTask.Dispose();
-                        }
-                        catch (Exception ex)
-                        {
-                            LogLog.Error(ThisType, "Exception Disposing Logging Task", ex);
-                        }
-                        finally
-                        {
-                            _loggingTask = null;
-                        }
-                    }
-                    if (_loggingEvents != null)
-                    {
-                        try
-                        {
-                            _loggingEvents.Dispose();
-                        }
-                        catch (Exception ex)
-                        {
-                            LogLog.Error(ThisType, "Exception Disposing BlockingCollection", ex);
-                        }
-                        finally
-                        {
-                            _loggingEvents = null;
-                        }
-                    }
-                    if (_loggingCancelationTokenSource != null)
-                    {
-                        try
-                        {
-                            _loggingCancelationTokenSource.Dispose();
-                        }
-                        catch (Exception ex)
-                        {
-                            LogLog.Error(ThisType, "Exception Disposing CancellationTokenSource", ex);
-                        }
-                        finally
-                        {
-                            _loggingCancelationTokenSource = null;
-                        }
-                    }
-                }
-                _disposed = true;
-            }
-        }
-
-        // Use C# destructor syntax for finalization code.
-        ~ParallelForwardingAppender()
-        {
-            // Simply call Dispose(false).
-            Dispose(false);
-        }
-
-        #endregion IDisposable Implementation
    }
 }
@@ -1,8 +1,14 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;

 namespace Umbraco.Core.Media
 {
-    public interface IImageUrlProvider
+    // note: because this interface is obsolete is is *not* IDiscoverable, and in case the
+    // PluginManager is asked to find types implementing this interface it will fall back
+    // to a complete scan.
+
+    [Obsolete("IImageUrlProvider is no longer used and will be removed in future versions")]
+    public interface IImageUrlProvider // IDiscoverable
    {
        string Name { get; }
        string GetImageUrlFromMedia(int mediaId, IDictionary<string, string> parameters);
@@ -1,6 +1,13 @@
-namespace Umbraco.Core.Media
+using System;
+
+namespace Umbraco.Core.Media
 {
-	public interface IThumbnailProvider
+    // note: because this interface is obsolete is is *not* IDiscoverable, and in case the
+    // PluginManager is asked to find types implementing this interface it will fall back
+    // to a complete scan.
+
+    [Obsolete("Thumbnails are generated by ImageProcessor, use that instead")]
+	public interface IThumbnailProvider  // : IDiscoverable
    {
        bool CanProvideThumbnail(string fileUrl);
        string GetThumbnailUrl(string fileUrl);
@@ -96,8 +96,7 @@ namespace Umbraco.Core.Media
        /// <param name="propertyTypeAlias">The property type alias.</param>
        /// <param name="filepath">The filesystem-relative filepath, or null to clear properties.</param>
        /// <param name="filestream">The stream containing the file data.</param>
-        /// <param name="image">The file data as an image object.</param>
-        public void Populate(IContentBase content, string propertyTypeAlias, string filepath, Stream filestream, Image image = null)
+        public void Populate(IContentBase content, string propertyTypeAlias, string filepath, Stream filestream)
        {
            if (content == null) throw new ArgumentNullException("content");
            if (propertyTypeAlias == null) throw new ArgumentNullException("propertyTypeAlias");
@@ -110,7 +109,7 @@ namespace Umbraco.Core.Media
            if (autoFillConfig == null) return; // nothing

            // populate
-            Populate(content, autoFillConfig, filepath, filestream, image);
+            Populate(content, autoFillConfig, filepath, filestream);
        }

        /// <summary>
@@ -158,8 +157,7 @@ namespace Umbraco.Core.Media
        /// <param name="autoFillConfig"></param>
        /// <param name="filepath">The filesystem-relative filepath, or null to clear properties.</param>
        /// <param name="filestream">The stream containing the file data.</param>
-        /// <param name="image">The file data as an image object.</param>
-        public void Populate(IContentBase content, IImagingAutoFillUploadField autoFillConfig, string filepath, Stream filestream, Image image = null)
+        public void Populate(IContentBase content, IImagingAutoFillUploadField autoFillConfig, string filepath, Stream filestream)
        {
            if (content == null) throw new ArgumentNullException("content");
            if (autoFillConfig == null) throw new ArgumentNullException("autoFillConfig");
@@ -172,11 +170,7 @@ namespace Umbraco.Core.Media
            else
            {
                var extension = (Path.GetExtension(filepath) ?? "").TrimStart('.');
-                Size? size;
-                if (image == null)
-                    size = _mediaFileSystem.IsImageFile(extension) ? (Size?) _mediaFileSystem.GetDimensions(filestream) : null;
-                else 
-                    size = new Size(image.Width, image.Height);
+                var size = _mediaFileSystem.IsImageFile(extension) ? (Size?)_mediaFileSystem.GetDimensions(filestream) : null;
                SetProperties(content, autoFillConfig, size, filestream.Length, extension);
            }
        }
@@ -1,5 +1,7 @@
 using System;
+using System.Collections.Concurrent;
 using System.Diagnostics;
+using Umbraco.Core.Logging;

 namespace Umbraco.Core.Models
 {
@@ -84,16 +86,64 @@ namespace Umbraco.Core.Models
        public string Type { get; set; }

        private Type _runtimeType;
-
+        
        /// <summary>
        /// Returns the CLR type based on it's assembly name stored in the config
        /// </summary>
        /// <returns></returns>
        public Type GetRuntimeType()
        {
-            return _runtimeType ?? (_runtimeType = System.Type.GetType(Type));
-        }
-            
+            if (_runtimeType != null)
+                return _runtimeType;

+            _runtimeType = TryGetType(Type);
+            return _runtimeType;
+        }
+
+        /// <summary>
+        /// Used to try to get and cache the tree type
+        /// </summary>
+        /// <param name="type"></param>
+        /// <returns></returns>
+        internal static Type TryGetType(string type)
+        {
+            try
+            {
+                return ResolvedTypes.GetOrAdd(type, s =>
+                {
+                    var result = System.Type.GetType(type);
+                    if (result != null)
+                    {
+                        return result;
+                    }
+
+                    //we need to implement a bit of a hack here due to some trees being renamed and backwards compat
+                    var parts = type.Split(new[] {','}, StringSplitOptions.RemoveEmptyEntries);
+                    if (parts.Length == 2)
+                    {
+                        if (parts[1].Trim() == "umbraco" && parts[0].StartsWith("Umbraco.Web.Trees") && parts[0].EndsWith("Controller") == false)
+                        {
+                            //if it's one of our controllers but it's not suffixed with "Controller" then add it and try again
+                            var tempType = parts[0] + "Controller, umbraco";
+
+                            result = System.Type.GetType(tempType);
+                            if (result != null)
+                            {
+                                return result;
+                            }
+                        }
+                    }
+
+                    throw new InvalidOperationException("Could not resolve type");
+                });
+            }
+            catch (InvalidOperationException)
+            {
+                //swallow, this is our own exception, couldn't find the type
+                return null;
+            }
+        }
+
+        private static readonly ConcurrentDictionary<string, Type> ResolvedTypes = new ConcurrentDictionary<string, Type>();
    }
 }
@@ -274,6 +274,9 @@ namespace Umbraco.Core.Models
        /// </summary>
        public bool HasPublishedVersion { get { return PublishedVersionGuid != default(Guid); } }

+        [IgnoreDataMember]
+        internal DateTime PublishedDate { get; set; }
+
        /// <summary>
        /// Changes the Trashed state of the content object
        /// </summary>
@@ -7,7 +7,6 @@ using System.Xml.Linq;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
 using Umbraco.Core.IO;
-using Umbraco.Core.Media;
 using Umbraco.Core.Models.EntityBase;
 using Umbraco.Core.Models.Membership;
 using Umbraco.Core.Services;
@@ -42,7 +41,7 @@ namespace Umbraco.Core.Models
        /// * The item exists and is published
        /// * A call to ContentService.Save is made
        /// * The item has not been modified whatsoever apart from changing it's published status from published to saved
-        /// 
+        ///
        /// In this case, there is no reason to make any database changes at all
        /// </remarks>
        internal static bool RequiresSaving(this IContent entity)
@@ -62,7 +61,7 @@ namespace Umbraco.Core.Models
        /// * The item exists and is published
        /// * A call to ContentService.Save is made
        /// * The item has not been modified whatsoever apart from changing it's published status from published to saved
-        /// 
+        ///
        /// In this case, there is no reason to make any database changes at all
        /// </remarks>
        internal static bool RequiresSaving(this IContent entity, PublishedState publishedState)
@@ -70,7 +69,7 @@ namespace Umbraco.Core.Models
            var publishedChanged = entity.IsPropertyDirty("Published") && publishedState != PublishedState.Unpublished;
            //check if any user prop has changed
            var propertyValueChanged = entity.IsAnyUserPropertyDirty();
-            
+
            //We need to know if any other property apart from Published was changed here
            //don't create a new version if the published state has changed to 'Save' but no data has actually been changed
            if (publishedChanged && entity.Published == false && propertyValueChanged == false)
@@ -302,9 +301,9 @@ namespace Umbraco.Core.Models
            return content.Path.Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries)
                          .Contains(recycleBinId.ToInvariantString());
        }
-        
+
        /// <summary>
-        /// Removes characters that are not valide XML characters from all entity properties 
+        /// Removes characters that are not valide XML characters from all entity properties
        /// of type string. See: http://stackoverflow.com/a/961504/5018
        /// </summary>
        /// <returns></returns>
@@ -456,7 +455,7 @@ namespace Umbraco.Core.Models
        /// <param name="value">The uploaded <see cref="HttpPostedFileBase"/>.</param>
        public static void SetValue(this IContentBase content, string propertyTypeAlias, HttpPostedFileBase value)
        {
-            // ensure we get the filename without the path in IE in intranet mode 
+            // ensure we get the filename without the path in IE in intranet mode
            // http://stackoverflow.com/questions/382464/httppostedfile-filename-different-from-ie
            var filename = value.FileName;
            var pos = filename.LastIndexOf(@"\", StringComparison.InvariantCulture);
@@ -468,10 +467,10 @@ namespace Umbraco.Core.Models
            if (pos > 0)
                filename = filename.Substring(pos + 1);

-            // get a safe filename - should this be done by MediaHelper?
+            // get a safe & clean filename
            filename = IOHelper.SafeFileName(filename);
            if (string.IsNullOrWhiteSpace(filename)) return;
-            filename = filename.ToLower(); // fixme - er... why?
+            filename = filename.ToLower();

            FileSystemProviderManager.Current.MediaFileSystem.SetUploadFile(content, propertyTypeAlias, filename, value.InputStream);
        }
@@ -513,10 +512,10 @@ namespace Umbraco.Core.Models
        {
            if (filename == null || filestream == null) return;

-            // get a safe filename - should this be done by MediaHelper?
+            // get a safe & clean filename
            filename = IOHelper.SafeFileName(filename);
            if (string.IsNullOrWhiteSpace(filename)) return;
-            filename = filename.ToLower(); // fixme - er... why?
+            filename = filename.ToLower();

            FileSystemProviderManager.Current.MediaFileSystem.SetUploadFile(content, propertyTypeAlias, filename, filestream);
        }
@@ -548,7 +547,7 @@ namespace Umbraco.Core.Models
        #endregion

        #region User/Profile methods
-        
+
        /// <summary>
        /// Gets the <see cref="IProfile"/> for the Creator of this media item.
        /// </summary>
@@ -623,7 +622,7 @@ namespace Umbraco.Core.Models
        ///// <param name="tagGroup"></param>
        ///// <returns></returns>
        ///// <remarks>
-        ///// The tags returned are only relavent for published content & saved media or members 
+        ///// The tags returned are only relavent for published content & saved media or members
        ///// </remarks>
        //public static IEnumerable<ITag> GetTags(this IContentBase content, string propertyTypeAlias, string tagGroup = "default")
        //{
@@ -1,85 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using Umbraco.Core.Services;
-
-namespace Umbraco.Core.Models
-{
-    //fixme: This whole thing needs to go, it's super hacky and doens't need to exist in the first place
-    internal static class ContentTypeExtensions
-    {
-        /// <summary>
-        /// Get all descendant content types
-        /// </summary>
-        /// <param name="contentType"></param>
-        /// <param name="contentTypeService"></param>
-        /// <returns></returns>
-        public static IEnumerable<IContentTypeBase> Descendants(this IContentTypeBase contentType, IContentTypeService contentTypeService)
-        {
-            if (contentType is IContentType)
-            {
-                var descendants = contentTypeService.GetContentTypeChildren(contentType.Id)
-                    .SelectRecursive(type => contentTypeService.GetContentTypeChildren(type.Id));
-                return descendants;
-            }
-
-            if (contentType is IMediaType)
-            {
-                var descendants = contentTypeService.GetMediaTypeChildren(contentType.Id)
-                    .SelectRecursive(type => contentTypeService.GetMediaTypeChildren(type.Id));
-                return descendants;
-            }
-
-            //No other content types have children (i.e. member types)
-            return Enumerable.Empty<IContentTypeBase>();
-        }
-
-        /// <summary>
-        /// Get all descendant content types
-        /// </summary>
-        /// <param name="contentType"></param>
-        /// <param name="contentTypeService"></param>
-        /// <returns></returns>
-        public static IEnumerable<IContentTypeBase> Descendants(this IContentTypeBase contentType, ContentTypeServiceBase contentTypeService)
-        {
-            var cService = contentTypeService as IContentTypeService;
-
-            return cService == null ? Enumerable.Empty<IContentTypeBase>() : contentType.Descendants(cService);
-        }
-
-        /// <summary>
-        /// Get all descendant and self content types
-        /// </summary>
-        /// <param name="contentType"></param>
-        /// <param name="contentTypeService"></param>
-        /// <returns></returns>
-        public static IEnumerable<IContentTypeBase> DescendantsAndSelf(this IContentTypeBase contentType, IContentTypeService contentTypeService)
-        {
-            var descendantsAndSelf = new[] { contentType }.Concat(contentType.Descendants(contentTypeService));
-            return descendantsAndSelf;
-        }
-
-        /// <summary>
-        /// Get all descendant and self content types
-        /// </summary>
-        /// <param name="contentType"></param>
-        /// <param name="contentTypeService"></param>
-        /// <returns></returns>
-        public static IEnumerable<IContentTypeBase> DescendantsAndSelf(this IContentTypeBase contentType, ContentTypeServiceBase contentTypeService)
-        {
-            var descendantsAndSelf = new[] { contentType }.Concat(contentType.Descendants(contentTypeService));
-            return descendantsAndSelf;
-        }
-
-        ///// <summary>
-        ///// Returns the descendant content type Ids for the given content type
-        ///// </summary>
-        ///// <param name="contentType"></param>
-        ///// <returns></returns>
-        //public static IEnumerable<int> DescendantIds(this IContentTypeBase contentType)
-        //{
-        //    return ((ContentTypeService) ApplicationContext.Current.Services.ContentTypeService)
-        //        .GetDescendantContentTypeIds(contentType.Id);
-        //}
-    }
-}
@@ -49,7 +49,10 @@ namespace Umbraco.Core.Models
            return path
                .Replace('\\', System.IO.Path.DirectorySeparatorChar)
                .Replace('/', System.IO.Path.DirectorySeparatorChar);
-                //.TrimStart(System.IO.Path.DirectorySeparatorChar);
+
+            //Don't strip the start - this was a bug fixed in 7.3, see ScriptRepositoryTests.PathTests
+            //.TrimStart(System.IO.Path.DirectorySeparatorChar)
+            //.TrimStart('/');
        }

        /// <summary>
@@ -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))
@@ -110,6 +110,12 @@ namespace Umbraco.Core.Models
            _ruleCollection.Clear();
        }

+
+        internal void ClearRemovedRules()
+        {
+            _removedRules.Clear();
+        }
+
        [DataMember]
        public int LoginNodeId
        {
@@ -0,0 +1,63 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace Umbraco.Core.Models.PublishedContent
+{
+    /// <summary>
+    /// The published content enumerable, this model is to allow ToString to be overriden for value converters to support legacy requests for string values
+    /// </summary>
+    public class PublishedContentEnumerable : IEnumerable<IPublishedContent>
+    {
+        /// <summary>
+        /// The items in the collection
+        /// </summary>
+        private readonly IEnumerable<IPublishedContent> _items;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="PublishedContentEnumerable"/> class.
+        /// </summary>
+        /// <param name="publishedContent">
+        /// The published content items
+        /// </param>
+        public PublishedContentEnumerable(IEnumerable<IPublishedContent> publishedContent)
+        {
+            if (publishedContent == null) throw new ArgumentNullException("publishedContent");
+            _items = publishedContent;
+        }
+
+        /// <summary>
+        /// The ToString method to convert the objects back to CSV
+        /// </summary>
+        /// <returns>
+        /// The <see cref="string"/>.
+        /// </returns>
+        public override string ToString()
+        {
+            return string.Join(",", _items.Select(x => x.Id));
+        }
+
+        /// <summary>
+        /// The get enumerator.
+        /// </summary>
+        /// <returns>
+        /// The <see cref="IEnumerator"/>.
+        /// </returns>
+        public IEnumerator<IPublishedContent> GetEnumerator()
+        {
+            return _items.GetEnumerator();
+        }
+
+        /// <summary>
+        /// The get enumerator.
+        /// </summary>
+        /// <returns>
+        /// The <see cref="IEnumerator"/>.
+        /// </returns>
+        IEnumerator IEnumerable.GetEnumerator()
+        {
+            return GetEnumerator();
+        }
+    }
+}
@@ -1,11 +1,12 @@
 using System;
 using System.Collections.Generic;
 using System.Collections.ObjectModel;
+using System.ComponentModel;
 using System.Linq;

 namespace Umbraco.Core.Models.PublishedContent
 {
-
+    [TypeConverter(typeof(PublishedContentTypeConverter))]
    public class PublishedContentExtended : PublishedContentWrapped, IPublishedContentExtended
    {
        #region Constructor
@@ -186,6 +187,11 @@ namespace Umbraco.Core.Models.PublishedContent
        }

        #endregion
+
+        public override string ToString()
+        {
+            return Id.ToString();
+        }
    }

 }
@@ -179,7 +179,7 @@ namespace Umbraco.Core.Models.PublishedContent
            }

            if (contentType == null)
-                throw new Exception(string.Format("ContentTypeService failed to find a {0} type with alias \"{1}\".",
+                throw new InvalidOperationException(string.Format("ContentTypeService failed to find a {0} type with alias \"{1}\".",
                    itemType.ToString().ToLower(), alias));

            return new PublishedContentType(contentType);
@@ -0,0 +1,39 @@
+using System;
+using System.ComponentModel;
+using System.Globalization;
+using System.Linq;
+
+namespace Umbraco.Core.Models.PublishedContent
+{
+    internal class PublishedContentTypeConverter : TypeConverter
+    {
+        private static readonly Type[] ConvertableTypes = new[]
+        {
+            typeof(int)
+        };
+
+        public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType)
+        {
+            return ConvertableTypes.Any(x => TypeHelper.IsTypeAssignableFrom(x, destinationType))
+                   || base.CanConvertFrom(context, destinationType);
+        }
+
+        public override object ConvertTo(
+            ITypeDescriptorContext context,
+            CultureInfo culture,
+            object value,
+            Type destinationType)
+        {
+            var publishedContent = value as IPublishedContent;
+            if (publishedContent == null)
+                return null;
+
+            if (TypeHelper.IsTypeAssignableFrom<int>(destinationType))
+            {
+                return publishedContent.Id;
+            }
+
+            return base.ConvertTo(context, culture, value, destinationType);
+        }
+    }
+}
@@ -0,0 +1,52 @@
+using System;
+namespace Umbraco.Core.Models
+{
+    // <summary>The Range class. Adapted from http://stackoverflow.com/questions/5343006/is-there-a-c-sharp-type-for-representing-an-integer-range</summary>
+    /// <typeparam name="T">Generic parameter.</typeparam>
+    public class Range<T> where T : IComparable<T>
+    {
+        /// <summary>Minimum value of the range.</summary>
+        public T Minimum { get; set; }
+
+        /// <summary>Maximum value of the range.</summary>
+        public T Maximum { get; set; }
+
+        /// <summary>Presents the Range in readable format.</summary>
+        /// <returns>String representation of the Range</returns>
+        public override string ToString()
+        {
+            return string.Format("{0},{1}", this.Minimum, this.Maximum);
+        }
+
+        /// <summary>Determines if the range is valid.</summary>
+        /// <returns>True if range is valid, else false</returns>
+        public bool IsValid()
+        {
+            return this.Minimum.CompareTo(this.Maximum) <= 0;
+        }
+
+        /// <summary>Determines if the provided value is inside the range.</summary>
+        /// <param name="value">The value to test</param>
+        /// <returns>True if the value is inside Range, else false</returns>
+        public bool ContainsValue(T value)
+        {
+            return (this.Minimum.CompareTo(value) <= 0) && (value.CompareTo(this.Maximum) <= 0);
+        }
+
+        /// <summary>Determines if this Range is inside the bounds of another range.</summary>
+        /// <param name="Range">The parent range to test on</param>
+        /// <returns>True if range is inclusive, else false</returns>
+        public bool IsInsideRange(Range<T> range)
+        {
+            return this.IsValid() && range.IsValid() && range.ContainsValue(this.Minimum) && range.ContainsValue(this.Maximum);
+        }
+
+        /// <summary>Determines if another range is inside the bounds of this range.</summary>
+        /// <param name="Range">The child range to test</param>
+        /// <returns>True if range is inside, else false</returns>
+        public bool ContainsRange(Range<T> range)
+        {
+            return this.IsValid() && range.IsValid() && this.ContainsValue(range.Minimum) && this.ContainsValue(range.Maximum);
+        }
+    }
+}
@@ -10,7 +10,7 @@ namespace Umbraco.Core.Models.Rdbms
    internal class DataTypeDto
    {
        [Column("pk")]
-        [PrimaryKeyColumn(IdentitySeed = 30)]
+        [PrimaryKeyColumn(IdentitySeed = 40)]
        public int PrimaryKey { get; set; }

        [Column("nodeId")]
@@ -19,5 +19,8 @@ namespace Umbraco.Core.Models.Rdbms

        [Column("newest")]
        public bool Newest { get; set; }
+
+        [Column("updateDate")]
+        public DateTime VersionDate { get; set; }
    }
 }
@@ -10,7 +10,7 @@ namespace Umbraco.Core.Models.Rdbms
    [ExplicitColumns]
    internal class NodeDto
    {
-        public const int NodeIdSeed = 1050;
+        public const int NodeIdSeed = 1060;

        [Column("id")]
        [PrimaryKeyColumn(Name = "PK_structure", IdentitySeed = NodeIdSeed)]
@@ -22,6 +22,7 @@ namespace Umbraco.Core.ObjectResolution
        private readonly string _httpContextKey;
        private readonly List<Type> _instanceTypes = new List<Type>();
        private IEnumerable<TResolved> _sortedValues;
+        private readonly Func<HttpContextBase> _httpContextGetter;

        private int _defaultPluginWeight = 100;

@@ -42,12 +43,7 @@ namespace Umbraco.Core.ObjectResolution
            if (logger == null) throw new ArgumentNullException("logger");
            CanResolveBeforeFrozen = false;
            if (scope == ObjectLifetimeScope.HttpRequest)
-            {
-                if (HttpContext.Current == null)
-                    throw new InvalidOperationException("Use alternative constructor accepting a HttpContextBase object in order to set the lifetime scope to HttpRequest when HttpContext.Current is null");
-
-                CurrentHttpContext = new HttpContextWrapper(HttpContext.Current);
-            }
+                _httpContextGetter = () => new HttpContextWrapper(HttpContext.Current);

            ServiceProvider = serviceProvider;
            Logger = logger;
@@ -84,7 +80,7 @@ namespace Umbraco.Core.ObjectResolution
            LifetimeScope = ObjectLifetimeScope.HttpRequest;
            _httpContextKey = GetType().FullName;
            ServiceProvider = serviceProvider;
-            CurrentHttpContext = httpContext;
+            _httpContextGetter = () => httpContext;
            _instanceTypes = new List<Type>();

            InitializeAppInstances();
@@ -160,7 +156,16 @@ namespace Umbraco.Core.ObjectResolution
        /// Gets or sets the <see cref="HttpContextBase"/> used to initialize this object, if any.
        /// </summary>
        /// <remarks>If not null, then <c>LifetimeScope</c> will be <c>ObjectLifetimeScope.HttpRequest</c>.</remarks>
-        protected HttpContextBase CurrentHttpContext { get; private set; }
+        protected HttpContextBase CurrentHttpContext
+        {
+            get
+            {
+                var context = _httpContextGetter == null ? null : _httpContextGetter();
+                if (context == null)
+                    throw new InvalidOperationException("Cannot use this resolver with lifetime 'HttpRequest' when there is no current HttpContext. Either use the ctor accepting an HttpContextBase, or use the resolver from within a request exclusively.");
+                return context;
+            }
+        }

        /// <summary>
        /// Returns the service provider used to instantiate objects
@@ -196,7 +201,7 @@ namespace Umbraco.Core.ObjectResolution
        /// <summary>
        /// Gets or sets the default type weight.
        /// </summary>
-        /// <remarks>Determines the weight of types that do not have a <c>WeightAttribute</c> set on 
+        /// <remarks>Determines the weight of types that do not have a <c>WeightAttribute</c> set on
        /// them, when calling <c>GetSortedValues</c>.</remarks>
        protected virtual int DefaultPluginWeight
        {
@@ -276,7 +281,7 @@ namespace Umbraco.Core.ObjectResolution
        /// Removes a type.
        /// </summary>
        /// <param name="value">The type to remove.</param>
-        /// <exception cref="InvalidOperationException">the resolver does not support removing types, or 
+        /// <exception cref="InvalidOperationException">the resolver does not support removing types, or
        /// the type is not a valid type for the resolver.</exception>
        public virtual void RemoveType(Type value)
        {
@@ -296,7 +301,7 @@ namespace Umbraco.Core.ObjectResolution
        /// Removes a type.
        /// </summary>
        /// <typeparam name="T">The type to remove.</typeparam>
-        /// <exception cref="InvalidOperationException">the resolver does not support removing types, or 
+        /// <exception cref="InvalidOperationException">the resolver does not support removing types, or
        /// the type is not a valid type for the resolver.</exception>
        public void RemoveType<T>()
            where T : TResolved
@@ -309,7 +314,7 @@ namespace Umbraco.Core.ObjectResolution
        /// </summary>
        /// <param name="types">The types to add.</param>
        /// <remarks>The types are appended at the end of the list.</remarks>
-        /// <exception cref="InvalidOperationException">the resolver does not support adding types, or 
+        /// <exception cref="InvalidOperationException">the resolver does not support adding types, or
        /// a type is not a valid type for the resolver, or a type is already in the collection of types.</exception>
        protected void AddTypes(IEnumerable<Type> types)
        {
@@ -336,7 +341,7 @@ namespace Umbraco.Core.ObjectResolution
        /// </summary>
        /// <param name="value">The type to add.</param>
        /// <remarks>The type is appended at the end of the list.</remarks>
-        /// <exception cref="InvalidOperationException">the resolver does not support adding types, or 
+        /// <exception cref="InvalidOperationException">the resolver does not support adding types, or
        /// the type is not a valid type for the resolver, or the type is already in the collection of types.</exception>
        public virtual void AddType(Type value)
        {
@@ -362,7 +367,7 @@ namespace Umbraco.Core.ObjectResolution
        /// </summary>
        /// <typeparam name="T">The type to add.</typeparam>
        /// <remarks>The type is appended at the end of the list.</remarks>
-        /// <exception cref="InvalidOperationException">the resolver does not support adding types, or 
+        /// <exception cref="InvalidOperationException">the resolver does not support adding types, or
        /// the type is not a valid type for the resolver, or the type is already in the collection of types.</exception>
        public void AddType<T>()
            where T : TResolved
@@ -404,7 +409,7 @@ namespace Umbraco.Core.ObjectResolution
        /// </summary>
        /// <param name="index">The zero-based index at which the type should be inserted.</param>
        /// <param name="value">The type to insert.</param>
-        /// <exception cref="InvalidOperationException">the resolver does not support inserting types, or 
+        /// <exception cref="InvalidOperationException">the resolver does not support inserting types, or
        /// the type is not a valid type for the resolver, or the type is already in the collection of types.</exception>
        /// <exception cref="ArgumentOutOfRangeException"><paramref name="index"/> is out of range.</exception>
        public virtual void InsertType(int index, Type value)
@@ -430,7 +435,7 @@ namespace Umbraco.Core.ObjectResolution
        /// Inserts a type at the beginning of the list.
        /// </summary>
        /// <param name="value">The type to insert.</param>
-        /// <exception cref="InvalidOperationException">the resolver does not support inserting types, or 
+        /// <exception cref="InvalidOperationException">the resolver does not support inserting types, or
        /// the type is not a valid type for the resolver, or the type is already in the collection of types.</exception>
        public virtual void InsertType(Type value)
        {
@@ -464,7 +469,7 @@ namespace Umbraco.Core.ObjectResolution
        /// </summary>
        /// <param name="existingType">The existing type before which to insert.</param>
        /// <param name="value">The type to insert.</param>
-        /// <exception cref="InvalidOperationException">the resolver does not support inserting types, or 
+        /// <exception cref="InvalidOperationException">the resolver does not support inserting types, or
        /// one of the types is not a valid type for the resolver, or the existing type is not in the collection,
        /// or the new type is already in the collection of types.</exception>
        public virtual void InsertTypeBefore(Type existingType, Type value)
@@ -498,7 +503,7 @@ namespace Umbraco.Core.ObjectResolution
        /// </summary>
        /// <typeparam name="TExisting">The existing type before which to insert.</typeparam>
        /// <typeparam name="T">The type to insert.</typeparam>
-        /// <exception cref="InvalidOperationException">the resolver does not support inserting types, or 
+        /// <exception cref="InvalidOperationException">the resolver does not support inserting types, or
        /// one of the types is not a valid type for the resolver, or the existing type is not in the collection,
        /// or the new type is already in the collection of types.</exception>
        public void InsertTypeBefore<TExisting, T>()
@@ -63,49 +63,6 @@ namespace Umbraco.Core.ObjectResolution
 			}
 		}

-        // NOTE - the ugly code below exists only because of umbraco.BusinessLogic.Actions.Action.ReRegisterActionsAndHandlers
-        // which wants to re-register actions and handlers instead of properly restarting the application. Don't even think
-        // about using it for anything else. Also, while the backdoor is open, the resolution system is locked so nothing
-        // can work properly => deadlocks. Therefore, open the backdoor, do resolution changes EXCLUSIVELY, and close the door!
-
-        /// <summary>
-        /// Returns a disposable object that reprents dirty access to temporarily unfrozen resolution configuration.
-        /// </summary>
-        /// <remarks>
-        /// <para>Should not be used.</para>
-        /// <para>Should be used in a <c>using(Resolution.DirtyBackdoorToConfiguration) { ... }</c> mode.</para>
-        /// <para>Because we just lift the frozen state, and we don't actually re-freeze, the <c>Frozen</c> event does not trigger.</para>
-        /// </remarks>
-        internal static IDisposable DirtyBackdoorToConfiguration
-        {
-            get { return new DirtyBackdoor(); }
-        }
-
-        // keep the class here because it needs write-access to Resolution.IsFrozen
-        private class DirtyBackdoor : IDisposable
-        {
-
-            private readonly IDisposable _lock;
-            private readonly bool _frozen;
-
-            public DirtyBackdoor()
-            {
-                LogHelper.Debug(typeof(DirtyBackdoor), "Creating back door for resolution");
-
-                _lock = new WriteLock(ConfigurationLock);
-                _frozen = _isFrozen;
-                _isFrozen = false;
-            }
-
-            public void Dispose()
-            {
-                LogHelper.Debug(typeof(DirtyBackdoor), "Disposing back door for resolution");
-
-                _isFrozen = _frozen;
-                _lock.Dispose();
-            }
-        }
-
 		/// <summary>
 		/// Freezes resolution.
 		/// </summary>
@@ -72,6 +72,9 @@ namespace Umbraco.Core.Persistence.Factories
                content.PublishedVersionGuid = publishedDto == null
                    ? (dto.DocumentPublishedReadOnlyDto == null ? default(Guid) : dto.DocumentPublishedReadOnlyDto.VersionId)
                    : publishedDto.VersionId;
+                content.PublishedDate = publishedDto == null
+                    ? (dto.DocumentPublishedReadOnlyDto == null ? default(DateTime) : dto.DocumentPublishedReadOnlyDto.VersionDate)
+                    : publishedDto.VersionDate;

                //on initial construction we don't want to have dirty properties tracked
                // http://issues.umbraco.org/issue/U4-1946
@@ -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
@@ -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;
-        }
+        
    }
 }
@@ -2,11 +2,12 @@
 using System.Collections.Concurrent;
 using System.Linq.Expressions;
 using System.Reflection;
+using umbraco.interfaces;
 using Umbraco.Core.Persistence.SqlSyntax;

 namespace Umbraco.Core.Persistence.Mappers
 {
-    public abstract class BaseMapper
+    public abstract class BaseMapper : IDiscoverable
    {
        private readonly ISqlSyntaxProvider _sqlSyntax;

@@ -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);
@@ -1,9 +1,11 @@
-namespace Umbraco.Core.Persistence.Migrations
+using umbraco.interfaces;
+
+namespace Umbraco.Core.Persistence.Migrations
 {
    /// <summary>
    /// Marker interface for database migrations
    /// </summary>
-    public interface IMigration
+    public interface IMigration : IDiscoverable
    {
        void Up();
        void Down();
@@ -130,8 +130,7 @@ namespace Umbraco.Core.Persistence.Migrations.Initial
            _database.Insert("umbracoNode", "id", false, new NodeDto { NodeId = Constants.System.DefaultMembersListViewDataTypeId, Trashed = false, ParentId = -1, UserId = 0, Level = 1, Path = "-1,-97", SortOrder = 2, UniqueId = new Guid("AA2C52A0-CE87-4E65-A47C-7DF09358585D"), Text = Constants.Conventions.DataTypes.ListViewPrefix + "Members", NodeObjectType = new Guid(Constants.ObjectTypes.DataType), CreateDate = DateTime.Now });                                    
            _database.Insert("umbracoNode", "id", false, new NodeDto { NodeId = 1031, Trashed = false, ParentId = -1, UserId = 0, Level = 1, Path = "-1,1031", SortOrder = 2, UniqueId = new Guid("f38bd2d7-65d0-48e6-95dc-87ce06ec2d3d"), Text = Constants.Conventions.MediaTypes.Folder, NodeObjectType = new Guid(Constants.ObjectTypes.MediaType), CreateDate = DateTime.Now });
            _database.Insert("umbracoNode", "id", false, new NodeDto { NodeId = 1032, Trashed = false, ParentId = -1, UserId = 0, Level = 1, Path = "-1,1032", SortOrder = 2, UniqueId = new Guid("cc07b313-0843-4aa8-bbda-871c8da728c8"), Text = Constants.Conventions.MediaTypes.Image, NodeObjectType = new Guid(Constants.ObjectTypes.MediaType), CreateDate = DateTime.Now });
-            _database.Insert("umbracoNode", "id", false, new NodeDto { NodeId = 1033, Trashed = false, ParentId = -1, UserId = 0, Level = 1, Path = "-1,1033", SortOrder = 2, UniqueId = new Guid("4c52d8ab-54e6-40cd-999c-7a5f24903e4d"), Text = Constants.Conventions.MediaTypes.File, NodeObjectType = new Guid(Constants.ObjectTypes.MediaType), CreateDate = DateTime.Now });            
-            _database.Insert("umbracoNode", "id", false, new NodeDto { NodeId = 1040, Trashed = false, ParentId = -1, UserId = 0, Level = 1, Path = "-1,1040", SortOrder = 2, UniqueId = new Guid("21e798da-e06e-4eda-a511-ed257f78d4fa"), Text = "Related Links", NodeObjectType = new Guid(Constants.ObjectTypes.DataType), CreateDate = DateTime.Now });
+            _database.Insert("umbracoNode", "id", false, new NodeDto { NodeId = 1033, Trashed = false, ParentId = -1, UserId = 0, Level = 1, Path = "-1,1033", SortOrder = 2, UniqueId = new Guid("4c52d8ab-54e6-40cd-999c-7a5f24903e4d"), Text = Constants.Conventions.MediaTypes.File, NodeObjectType = new Guid(Constants.ObjectTypes.MediaType), CreateDate = DateTime.Now });                        
            _database.Insert("umbracoNode", "id", false, new NodeDto { NodeId = 1041, Trashed = false, ParentId = -1, UserId = 0, Level = 1, Path = "-1,1041", SortOrder = 2, UniqueId = new Guid("b6b73142-b9c1-4bf8-a16d-e1c23320b549"), Text = "Tags", NodeObjectType = new Guid(Constants.ObjectTypes.DataType), CreateDate = DateTime.Now });
            _database.Insert("umbracoNode", "id", false, new NodeDto { NodeId = 1043, Trashed = false, ParentId = -1, UserId = 0, Level = 1, Path = "-1,1043", SortOrder = 2, UniqueId = new Guid("1df9f033-e6d4-451f-b8d2-e0cbc50a836f"), Text = "Image Cropper", NodeObjectType = new Guid(Constants.ObjectTypes.DataType), CreateDate = DateTime.Now });
            _database.Insert("umbracoNode", "id", false, new NodeDto { NodeId = 1044, Trashed = false, ParentId = -1, UserId = 0, Level = 1, Path = "-1,1044", SortOrder = 0, UniqueId = new Guid("d59be02f-1df9-4228-aa1e-01917d806cda"), Text = Constants.Conventions.MemberTypes.DefaultAlias, NodeObjectType = new Guid(Constants.ObjectTypes.MemberType), CreateDate = DateTime.Now });
@@ -141,6 +140,7 @@ namespace Umbraco.Core.Persistence.Migrations.Initial
            _database.Insert("umbracoNode", "id", false, new NodeDto { NodeId = 1047, Trashed = false, ParentId = -1, UserId = 0, Level = 1, Path = "-1,1047", SortOrder = 2, UniqueId = new Guid("1EA2E01F-EBD8-4CE1-8D71-6B1149E63548"), Text = "Member Picker", NodeObjectType = new Guid(Constants.ObjectTypes.DataType), CreateDate = DateTime.Now });
            _database.Insert("umbracoNode", "id", false, new NodeDto { NodeId = 1048, Trashed = false, ParentId = -1, UserId = 0, Level = 1, Path = "-1,1048", SortOrder = 2, UniqueId = new Guid("135D60E0-64D9-49ED-AB08-893C9BA44AE5"), Text = "Media Picker", NodeObjectType = new Guid(Constants.ObjectTypes.DataType), CreateDate = DateTime.Now });
            _database.Insert("umbracoNode", "id", false, new NodeDto { NodeId = 1049, Trashed = false, ParentId = -1, UserId = 0, Level = 1, Path = "-1,1049", SortOrder = 2, UniqueId = new Guid("9DBBCBBB-2327-434A-B355-AF1B84E5010A"), Text = "Multiple Media Picker", NodeObjectType = new Guid(Constants.ObjectTypes.DataType), CreateDate = DateTime.Now });
+            _database.Insert("umbracoNode", "id", false, new NodeDto { NodeId = 1050, Trashed = false, ParentId = -1, UserId = 0, Level = 1, Path = "-1,1050", SortOrder = 2, UniqueId = new Guid("B4E3535A-1753-47E2-8568-602CF8CFEE6F"), Text = "Related Links", NodeObjectType = new Guid(Constants.ObjectTypes.DataType), CreateDate = DateTime.Now });

            //TODO: We're not creating these for 7.0
            //_database.Insert("umbracoNode", "id", false, new NodeDto { NodeId = 1039, Trashed = false, ParentId = -1, UserId = 0, Level = 1, Path = "-1,1039", SortOrder = 2, UniqueId = new Guid("06f349a9-c949-4b6a-8660-59c10451af42"), Text = "Ultimate Picker", NodeObjectType = new Guid(Constants.ObjectTypes.DataType), CreateDate = DateTime.Now });
@@ -246,8 +246,7 @@ namespace Umbraco.Core.Persistence.Migrations.Initial
            _database.Insert("cmsDataType", "pk", false, new DataTypeDto { PrimaryKey = 12, DataTypeId = -40, PropertyEditorAlias = Constants.PropertyEditors.RadioButtonListAlias, DbType = "Nvarchar" });
            _database.Insert("cmsDataType", "pk", false, new DataTypeDto { PrimaryKey = 13, DataTypeId = -41, PropertyEditorAlias = Constants.PropertyEditors.DateAlias, DbType = "Date" });
            _database.Insert("cmsDataType", "pk", false, new DataTypeDto { PrimaryKey = 14, DataTypeId = -42, PropertyEditorAlias = Constants.PropertyEditors.DropDownListAlias, DbType = "Integer" });
-            _database.Insert("cmsDataType", "pk", false, new DataTypeDto { PrimaryKey = 15, DataTypeId = -43, PropertyEditorAlias = Constants.PropertyEditors.CheckBoxListAlias, DbType = "Nvarchar" });            
-            _database.Insert("cmsDataType", "pk", false, new DataTypeDto { PrimaryKey = 21, DataTypeId = 1040, PropertyEditorAlias = Constants.PropertyEditors.RelatedLinksAlias, DbType = "Ntext" });
+            _database.Insert("cmsDataType", "pk", false, new DataTypeDto { PrimaryKey = 15, DataTypeId = -43, PropertyEditorAlias = Constants.PropertyEditors.CheckBoxListAlias, DbType = "Nvarchar" });                        
            _database.Insert("cmsDataType", "pk", false, new DataTypeDto { PrimaryKey = 22, DataTypeId = 1041, PropertyEditorAlias = Constants.PropertyEditors.TagsAlias, DbType = "Ntext" });
            _database.Insert("cmsDataType", "pk", false, new DataTypeDto { PrimaryKey = 24, DataTypeId = 1043, PropertyEditorAlias = Constants.PropertyEditors.ImageCropperAlias, DbType = "Ntext" });
            _database.Insert("cmsDataType", "pk", false, new DataTypeDto { PrimaryKey = -26, DataTypeId = Constants.System.DefaultContentListViewDataTypeId, PropertyEditorAlias = Constants.PropertyEditors.ListViewAlias, DbType = "Nvarchar" });
@@ -259,6 +258,7 @@ namespace Umbraco.Core.Persistence.Migrations.Initial
            _database.Insert("cmsDataType", "pk", false, new DataTypeDto { PrimaryKey = 27, DataTypeId = 1047, PropertyEditorAlias = Constants.PropertyEditors.MemberPicker2Alias, DbType = "Nvarchar" });
            _database.Insert("cmsDataType", "pk", false, new DataTypeDto { PrimaryKey = 28, DataTypeId = 1048, PropertyEditorAlias = Constants.PropertyEditors.MediaPicker2Alias, DbType = "Ntext" });
            _database.Insert("cmsDataType", "pk", false, new DataTypeDto { PrimaryKey = 29, DataTypeId = 1049, PropertyEditorAlias = Constants.PropertyEditors.MediaPicker2Alias, DbType = "Ntext" });
+            _database.Insert("cmsDataType", "pk", false, new DataTypeDto { PrimaryKey = 30, DataTypeId = 1050, PropertyEditorAlias = Constants.PropertyEditors.RelatedLinks2Alias, DbType = "Ntext" });

            //TODO: We're not creating these for 7.0
            //_database.Insert("cmsDataType", "pk", false, new DataTypeDto { PrimaryKey = 19, DataTypeId = 1038, PropertyEditorAlias = Constants.PropertyEditors.MarkdownEditorAlias, DbType = "Ntext" });            
@@ -1,6 +1,5 @@
 using System.Linq;
 using Umbraco.Core.Logging;
-using Umbraco.Core.Persistence.DatabaseModelDefinitions;
 using Umbraco.Core.Persistence.SqlSyntax;

 namespace Umbraco.Core.Persistence.Migrations.Upgrades.TargetVersionSevenSixZero
@@ -1,6 +1,5 @@
 using System.Linq;
 using Umbraco.Core.Logging;
-using Umbraco.Core.Persistence.DatabaseModelDefinitions;
 using Umbraco.Core.Persistence.SqlSyntax;

 namespace Umbraco.Core.Persistence.Migrations.Upgrades.TargetVersionSevenSixZero
@@ -1,11 +1,10 @@
-using Umbraco.Core.Configuration;
-using Umbraco.Core.Logging;
+using Umbraco.Core.Logging;
 using Umbraco.Core.Models.Rdbms;
 using Umbraco.Core.Persistence.SqlSyntax;

-namespace Umbraco.Core.Persistence.Migrations.Upgrades.TargetVersionSevenFiveFive
+namespace Umbraco.Core.Persistence.Migrations.Upgrades.TargetVersionSevenSixZero
 {
-    [Migration("7.5.5", 101, Constants.System.UmbracoMigrationName)]
+    [Migration("7.6.0", 101, Constants.System.UmbracoMigrationName)]
    public class AddLockObjects : MigrationBase
    {
        public AddLockObjects(ISqlSyntaxProvider sqlSyntax, ILogger logger)
@@ -1,11 +1,10 @@
 using System.Linq;
-using Umbraco.Core.Configuration;
 using Umbraco.Core.Logging;
 using Umbraco.Core.Persistence.SqlSyntax;

-namespace Umbraco.Core.Persistence.Migrations.Upgrades.TargetVersionSevenFiveFive
+namespace Umbraco.Core.Persistence.Migrations.Upgrades.TargetVersionSevenSixZero
 {
-    [Migration("7.5.5", 100, Constants.System.UmbracoMigrationName)]
+    [Migration("7.6.0", 100, Constants.System.UmbracoMigrationName)]
    public class AddLockTable : MigrationBase
    {
        public AddLockTable(ISqlSyntaxProvider sqlSyntax, ILogger logger)
@@ -1,6 +1,5 @@
 using System;
 using System.Linq;
-using Umbraco.Core.Configuration;
 using Umbraco.Core.Logging;
 using Umbraco.Core.Persistence.SqlSyntax;

@@ -44,7 +43,7 @@ namespace Umbraco.Core.Persistence.Migrations.Upgrades.TargetVersionSevenSixZero
        private static string UpdateMacroGuids(Database database)
        {
            var updates = database.Query<dynamic>("SELECT id, macroAlias FROM cmsMacro")
-                .Select(macro => Tuple.Create((int) macro.id, ((string) macro.macroAlias).ToGuid()))
+                .Select(macro => Tuple.Create((int) macro.id, ("macro____" + (string) macro.macroAlias).ToGuid()))
                .ToList();

            foreach (var update in updates)
@@ -58,7 +57,7 @@ namespace Umbraco.Core.Persistence.Migrations.Upgrades.TargetVersionSevenSixZero
            var updates = database.Query<dynamic>(@"SELECT cmsMacroProperty.id id, macroPropertyAlias propertyAlias, cmsMacro.macroAlias macroAlias
 FROM cmsMacroProperty
 JOIN cmsMacro ON cmsMacroProperty.macro=cmsMacro.id")
-                .Select(prop => Tuple.Create((int) prop.id, ((string) prop.macroAlias + "____" + (string) prop.propertyAlias).ToGuid()))
+                .Select(prop => Tuple.Create((int) prop.id, ("macro____" + (string) prop.macroAlias + "____" + (string) prop.propertyAlias).ToGuid()))
                .ToList();

            foreach (var update in updates)
@@ -1,6 +1,5 @@
 using System;
 using System.Linq;
-using Umbraco.Core.Configuration;
 using Umbraco.Core.Logging;
 using Umbraco.Core.Persistence.SqlSyntax;

@@ -32,7 +31,7 @@ namespace Umbraco.Core.Persistence.Migrations.Upgrades.TargetVersionSevenSixZero
        private static string UpdateRelationTypeGuids(Database database)
        {
            var updates = database.Query<dynamic>("SELECT id, alias, name FROM umbracoRelationType")
-                .Select(relationType => Tuple.Create((int) relationType.id, ((string) relationType.alias + "____" + (string) relationType.name).ToGuid()))
+                .Select(relationType => Tuple.Create((int) relationType.id, ("relationType____" + (string) relationType.alias + "____" + (string) relationType.name).ToGuid()))
                .ToList();

            foreach (var update in updates)
@@ -1,5 +1,4 @@
 using System.Linq;
-using Umbraco.Core.Configuration;
 using Umbraco.Core.Logging;
 using Umbraco.Core.Persistence.SqlSyntax;

@@ -1,9 +1,5 @@
 using System;
-using System.Collections.Generic;
 using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-using Umbraco.Core.Configuration;
 using Umbraco.Core.Logging;
 using Umbraco.Core.Persistence.SqlSyntax;

@@ -546,7 +546,7 @@ namespace Umbraco.Core.Persistence.Querying
                        && methodArgs.Length == 1 
                        && methodArgs[0].NodeType == ExpressionType.MemberAccess
                        && TypeHelper.IsTypeAssignableFrom<IEnumerable>(m.Arguments[0].Type))
-                    {                        
+                    {
                        goto case "SqlIn";
                    }

@@ -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;

@@ -12,17 +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)
@@ -36,7 +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
@@ -50,13 +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();
@@ -71,5 +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;
+        }
    }
 }
@@ -1,5 +1,4 @@
-using System;
-using System.Collections.Generic;
+using System.Collections.Generic;
 using System.Linq;
 using System.Text.RegularExpressions;

@@ -64,7 +64,7 @@ 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;
        }
@@ -134,6 +134,9 @@ namespace Umbraco.Core.Persistence.Repositories
                .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)
            {
@@ -260,6 +263,39 @@ namespace Umbraco.Core.Persistence.Repositories
                }
                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)
@@ -273,12 +309,13 @@ namespace Umbraco.Core.Persistence.Repositories
            var sqlFull = translate(GetBaseQuery(BaseQueryType.FullMultiple));
            var sqlIds = translate(GetBaseQuery(BaseQueryType.Ids));
            
-            return ProcessQuery(sqlFull, new PagingSqlQuery(sqlIds), true);
+            return ProcessQuery(sqlFull, new PagingSqlQuery(sqlIds), true,  includeAllVersions:true);
        }

        public override IContent GetByVersion(Guid versionId)
        {
            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, SqlSyntax);

@@ -287,7 +324,7 @@ namespace Umbraco.Core.Persistence.Repositories
            if (dto == null)
                return null;

-            var content = CreateContentFromDto(dto, versionId, sql);
+            var content = CreateContentFromDto(dto, sql);

            return content;
        }
@@ -297,7 +334,8 @@ namespace Umbraco.Core.Persistence.Repositories
            var sql = new Sql()
                .Select("*")
                .From<DocumentDto>(SqlSyntax)
-                .InnerJoin<ContentVersionDto>(SqlSyntax).On<ContentVersionDto, DocumentDto>(SqlSyntax, left => left.VersionId, right => right.VersionId)
+                .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();
@@ -317,7 +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);
@@ -474,11 +513,13 @@ namespace Umbraco.Core.Persistence.Repositories
                dto.DocumentPublishedReadOnlyDto = new DocumentPublishedReadOnlyDto
                {
                    VersionId = dto.VersionId,
+                    VersionDate = dto.UpdateDate,
                    Newest = true,
                    NodeId = dto.NodeId,
-                    Published = true
+                    Published = true               
                };
-                ((Content)entity).PublishedVersionGuid = dto.VersionId;
+                ((Content) entity).PublishedVersionGuid = dto.VersionId;
+                ((Content) entity).PublishedDate = dto.UpdateDate;
            }

            entity.ResetDirtyProperties();
@@ -558,6 +599,7 @@ 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)
                {
@@ -571,6 +613,7 @@ 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)
            {
@@ -647,22 +690,26 @@ namespace Umbraco.Core.Persistence.Repositories
                dto.DocumentPublishedReadOnlyDto = new DocumentPublishedReadOnlyDto
                {
                    VersionId = dto.VersionId,
+                    VersionDate = dto.UpdateDate,
                    Newest = true,
                    NodeId = dto.NodeId,
                    Published = true
                };
-                ((Content)entity).PublishedVersionGuid = dto.VersionId;
+                ((Content) entity).PublishedVersionGuid = dto.VersionId;
+                ((Content) entity).PublishedDate = dto.UpdateDate;
            }
            else if (publishedStateChanged)
            {
                dto.DocumentPublishedReadOnlyDto = new DocumentPublishedReadOnlyDto
                {
-                    VersionId = default(Guid),
+                    VersionId = default (Guid),
+                    VersionDate = default (DateTime),
                    Newest = false,
                    NodeId = dto.NodeId,
                    Published = false
                };
-                ((Content)entity).PublishedVersionGuid = default(Guid);
+                ((Content) entity).PublishedVersionGuid = default(Guid);
+                ((Content) entity).PublishedDate = default (DateTime);
            }

            entity.ResetDirtyProperties();
@@ -898,7 +945,7 @@ order by umbracoNode.{2}, umbracoNode.parentID, umbracoNode.sortOrder",

            return base.GetDatabaseFieldNameForOrderBy(orderBy);
        }
-        
+
        /// <summary>
        /// This is the underlying method that processes most queries for this repository
        /// </summary>
@@ -909,8 +956,12 @@ order by umbracoNode.{2}, umbracoNode.parentID, umbracoNode.sortOrder",
        /// 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)
+        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>(sqlFull);
@@ -929,13 +980,12 @@ order by umbracoNode.{2}, umbracoNode.parentID, umbracoNode.sortOrder",
                parsedOriginalSql = parsedOriginalSql.Substring(0, parsedOriginalSql.LastIndexOf("ORDER BY ", StringComparison.Ordinal));
            }            

-            var publishedSql = new Sql(@"SELECT *
-FROM cmsDocument AS doc2
-INNER JOIN 
-	(" + parsedOriginalSql + @") as docData
-ON doc2.nodeId = docData.nodeId
-WHERE doc2.published = 1
-ORDER BY doc2.nodeId
+            //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.updateDate, 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
@@ -950,9 +1000,9 @@ ORDER BY doc2.nodeId
                    publishedDataCollection.Add(publishedDto);
            }

-
-            var content = new IContent[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<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
@@ -960,9 +1010,8 @@ ORDER BY doc2.nodeId
            // the overhead of deep cloning them on every item in this loop
            var contentTypes = new Dictionary<int, IContentType>();
            
-            for (var i = 0; i < dtos.Count; i++)
+            foreach (var dto in dtos)
            {
-                var dto = dtos[i];
                DocumentPublishedReadOnlyDto publishedDto;
                publishedDataCollection.TryGetValue(dto.NodeId, out publishedDto);

@@ -970,10 +1019,10 @@ ORDER BY doc2.nodeId
                if (withCache)
                {
                    var cached = IsolatedCache.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;
                    }
                }
@@ -991,21 +1040,16 @@ ORDER BY doc2.nodeId
                    contentType = _contentTypeRepository.Get(dto.ContentVersionDto.ContentDto.ContentTypeId);
                    contentTypes[dto.ContentVersionDto.ContentDto.ContentTypeId] = contentType;
                }
-                
-                content[i] = ContentFactory.BuildEntity(dto, contentType, publishedDto);

-                // need template
-                if (dto.TemplateId.HasValue && dto.TemplateId.Value > 0)
-                    templateIds.Add(dto.TemplateId.Value);
+                // 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);

-                // need properties
-                defs.Add(new DocumentDefinition(
-                    dto.NodeId,
-                    dto.VersionId,
-                    dto.ContentVersionDto.VersionDate,
-                    dto.ContentVersionDto.ContentDto.NodeDto.CreateDate,
-                    contentType
-                ));
+                    content.Add(new Tuple<IContent, bool>(ContentFactory.BuildEntity(dto, contentType, publishedDto), false));
+                }
            }

            // load all required templates in 1 query
@@ -1015,38 +1059,38 @@ ORDER BY doc2.nodeId
            // load all properties for all documents from database in 1 query
            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
                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);

@@ -1058,11 +1102,11 @@ ORDER BY doc2.nodeId
                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
@@ -101,7 +101,8 @@ namespace Umbraco.Core.Persistence.Repositories

            var translator = new SqlTranslator<PropertyType>(sqlClause, query);
            var sql = translator.Translate()
-                                .OrderBy<PropertyTypeDto>(x => x.PropertyTypeGroupId, SqlSyntax);
+                //must be sorted this way for the relator to work
+                .OrderBy<PropertyTypeGroupDto>(x => x.Id, SqlSyntax);

            var dtos = Database.Fetch<PropertyTypeGroupDto, PropertyTypeDto, DataTypeDto, PropertyTypeGroupDto>(new GroupPropertyTypeRelator().Map, sql);

@@ -468,7 +469,8 @@ AND umbracoNode.id <> @id",
               .LeftJoin<DataTypeDto>()
               .On<PropertyTypeDto, DataTypeDto>(left => left.DataTypeId, right => right.DataTypeId)
               .Where<PropertyTypeGroupDto>(x => x.ContentTypeNodeId == id)
-               .OrderBy<PropertyTypeGroupDto>(x => x.Id);
+               //must be sorted this way for the relator to work
+               .OrderBy<PropertyTypeGroupDto>(x => x.Id, SqlSyntax);

            var dtos = Database.Fetch<PropertyTypeGroupDto, PropertyTypeDto, DataTypeDto, PropertyTypeGroupDto>(new GroupPropertyTypeRelator().Map, sql);

@@ -1250,5 +1252,19 @@ WHERE cmsContentType." + aliasColumn + @" LIKE @pattern",
            while (aliases.Contains(test = alias + i)) i++;
            return test;
        }
+
+        /// <summary>
+        /// Given the path of a content item, this will return true if the content item exists underneath a list view content item
+        /// </summary>
+        /// <param name="contentPath"></param>
+        /// <returns></returns>
+        public bool HasContainerInPath(string contentPath)
+        {
+            var ids = contentPath.Split(',').Select(int.Parse);
+            var sql = new Sql(@"SELECT COUNT(*) FROM cmsContentType
+INNER JOIN cmsContent ON cmsContentType.nodeId=cmsContent.contentType 
+WHERE cmsContent.nodeId IN (@ids) AND cmsContentType.isContainer=@isContainer", new { ids, isContainer = true });
+            return Database.ExecuteScalar<int>(sql) > 0;
+        }
    }
 }
@@ -104,7 +104,7 @@ 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);
@@ -276,47 +276,33 @@ AND umbracoNode.id <> @id",

        public PreValueCollection GetPreValuesCollectionByDataTypeId(int dataTypeId)
        {
-            var cached = IsolatedCache.GetCacheItemsByKeySearch<PreValueCollection>(GetPrefixedCacheKey(dataTypeId));
-            if (cached != null && cached.Any())
-            {
-                //return from the cache, ensure it's a cloned result
-                return (PreValueCollection)cached.First().DeepClone();
-            }
-
-            return GetAndCachePreValueCollection(dataTypeId);
-        }
-
-        internal static string GetCacheKeyRegex(int preValueId)
-        {
-            return CacheKeys.DataTypePreValuesCacheKey + @"[-\d]+-([\d]*,)*" + preValueId + @"(?!\d)[,\d$]*";
+            var collection = GetCachedPreValueCollection(dataTypeId);
+            return collection;
        }

+        /// <summary>
+        /// Gets a specific PreValue by its Id
+        /// </summary>
+        /// <param name="preValueId">Id of the PreValue to retrieve the value from</param>
+        /// <returns>PreValue as a string</returns>
        public string GetPreValueAsString(int preValueId)
        {
-            //We need to see if we can find the cached PreValueCollection based on the cache key above
+            var collections = IsolatedCache.GetCacheItemsByKeySearch<PreValueCollection>(CacheKeys.DataTypePreValuesCacheKey + "_");

-            var cached = IsolatedCache.GetCacheItemsByKeyExpression<PreValueCollection>(GetCacheKeyRegex(preValueId));
-            if (cached != null && cached.Any())
-            {
-                //return from the cache
-                var collection = cached.First();
-				var preVal = collection.FormatAsDictionary().Single(x => x.Value.Id == preValueId);
-				return preVal.Value.Value;
-            }
+            var preValue = collections.SelectMany(x => x.FormatAsDictionary().Values).FirstOrDefault(x => x.Id == preValueId);
+            if (preValue != null)
+                return preValue.Value;

-            //go and find the data type id for the pre val id passed in
-
-            var dto = Database.FirstOrDefault<DataTypePreValueDto>("WHERE id = @preValueId", new { preValueId = preValueId });
+            var dto = Database.FirstOrDefault<DataTypePreValueDto>("WHERE id = @preValueId", new { preValueId });
            if (dto == null)
-            {
                return string.Empty;
-            }
-            // go cache the collection
-            var preVals = GetAndCachePreValueCollection(dto.DataTypeNodeId);

-            //return the single value for this id
-            var pv = preVals.FormatAsDictionary().Single(x => x.Value.Id == preValueId);
-            return pv.Value.Value;
+            var collection = GetCachedPreValueCollection(dto.DataTypeNodeId);
+            if (collection == null)
+                return string.Empty;
+
+            preValue = collection.FormatAsDictionary().Values.FirstOrDefault(x => x.Id == preValueId);
+            return preValue == null ? string.Empty : preValue.Value;
        }

        public void AddOrUpdatePreValues(int dataTypeId, IDictionary<string, PreValue> values)
@@ -441,40 +427,28 @@ AND umbracoNode.id <> @id",

                sortOrder++;
            }
-
        }

-        private string GetPrefixedCacheKey(int dataTypeId)
+        private static string GetPrefixedCacheKey(int dataTypeId)
        {
-            return CacheKeys.DataTypePreValuesCacheKey + dataTypeId + "-";
+            return CacheKeys.DataTypePreValuesCacheKey + "_" + dataTypeId;
        }

-        private PreValueCollection GetAndCachePreValueCollection(int dataTypeId)
+        private PreValueCollection GetCachedPreValueCollection(int datetypeId)
        {
-            //go get the data
-            var dtos = Database.Fetch<DataTypePreValueDto>("WHERE datatypeNodeId = @Id", new { Id = dataTypeId });
-            var list = dtos.Select(x => new Tuple<PreValue, string, int>(new PreValue(x.Id, x.Value, x.SortOrder), x.Alias, x.SortOrder)).ToList();
-            var collection = PreValueConverter.ConvertToPreValuesCollection(list);
-
-            //now create the cache key, this needs to include all pre-value ids so that we can use this cached item in the GetPreValuesAsString method
-            //the key will be: "UmbracoPreValDATATYPEID-CSVOFPREVALIDS
-
-            var key = GetPrefixedCacheKey(dataTypeId)
-                      + string.Join(",", collection.FormatAsDictionary().Select(x => x.Value.Id).ToArray());
-
-            //store into cache
-            IsolatedCache.InsertCacheItem(key, () => collection,
-                //30 mins
-                new TimeSpan(0, 0, 30),
-                //sliding is true
-                true);
-
-            return collection;
+            var key = GetPrefixedCacheKey(datetypeId);
+            return IsolatedCache.GetCacheItem<PreValueCollection>(key, () =>
+            {
+                var dtos = Database.Fetch<DataTypePreValueDto>("WHERE datatypeNodeId = @Id", new { Id = datetypeId });
+                var list = dtos.Select(x => new Tuple<PreValue, string, int>(new PreValue(x.Id, x.Value, x.SortOrder), x.Alias, x.SortOrder)).ToList();
+                var collection = PreValueConverter.ConvertToPreValuesCollection(list);
+                return collection;
+            }, TimeSpan.FromMinutes(20), isSliding: true);
        }

        private string EnsureUniqueNodeName(string nodeName, int id = 0)
        {
-         
+

            var sql = new Sql();
            sql.Select("*")
@@ -575,7 +549,7 @@ AND umbracoNode.id <> @id",
                }

                //NOTE: We used to check that the Alias was unique for the given DataTypeNodeId prevalues list, BUT
-                // in reality there is no need to check the uniqueness of this alias because the only way that this code executes is 
+                // in reality there is no need to check the uniqueness of this alias because the only way that this code executes is
                // based on an IDictionary<string, PreValue> dictionary being passed to this repository and a dictionary
                // must have unique aliases by definition, so there is no need for this additional check

@@ -595,10 +569,10 @@ AND umbracoNode.id <> @id",
                {
                    throw new InvalidOperationException("Cannot update a pre value for a data type that has no identity");
                }
-                
+
                //NOTE: We used to check that the Alias was unique for the given DataTypeNodeId prevalues list, BUT
                // this causes issues when sorting the pre-values (http://issues.umbraco.org/issue/U4-5670) but in reality
-                // there is no need to check the uniqueness of this alias because the only way that this code executes is 
+                // there is no need to check the uniqueness of this alias because the only way that this code executes is
                // based on an IDictionary<string, PreValue> dictionary being passed to this repository and a dictionary
                // must have unique aliases by definition, so there is no need for this additional check

@@ -613,7 +587,7 @@ AND umbracoNode.id <> @id",
                Database.Update(dto);
            }

-            
+
        }

        internal static class PreValueConverter
@@ -41,6 +41,7 @@ namespace Umbraco.Core.Persistence.Repositories
        {
            var sql = GetBaseQuery(false)
                .Where(GetBaseWhereClause(), new { Id = id })
+                //must be sorted this way for the relator to work
                .OrderBy<DictionaryDto>(x => x.UniqueId, SqlSyntax);

            var dto = Database.Fetch<DictionaryDto, LanguageTextDto, DictionaryDto>(new DictionaryLanguageTextRelator().Map, sql).FirstOrDefault();
@@ -64,6 +65,9 @@ namespace Umbraco.Core.Persistence.Repositories
                sql.Where("cmsDictionary.pk in (@ids)", new { ids = ids });
            }

+            //must be sorted this way for the relator to work
+            sql.OrderBy<DictionaryDto>(x => x.UniqueId, SqlSyntax);
+
            return Database.Fetch<DictionaryDto, LanguageTextDto, DictionaryDto>(new DictionaryLanguageTextRelator().Map, sql)
                    .Select(dto => ConvertFromDto(dto));
        }
@@ -73,6 +77,7 @@ namespace Umbraco.Core.Persistence.Repositories
            var sqlClause = GetBaseQuery(false);
            var translator = new SqlTranslator<IDictionaryItem>(sqlClause, query);
            var sql = translator.Translate();
+            //must be sorted this way for the relator to work
            sql.OrderBy<DictionaryDto>(x => x.UniqueId, SqlSyntax);

            return Database.Fetch<DictionaryDto, LanguageTextDto, DictionaryDto>(new DictionaryLanguageTextRelator().Map, sql)
@@ -94,9 +99,9 @@ namespace Umbraco.Core.Persistence.Repositories
            else
            {
                sql.Select("*")
-                   .From<DictionaryDto>(SqlSyntax)
-                   .LeftJoin<LanguageTextDto>(SqlSyntax)
-                   .On<DictionaryDto, LanguageTextDto>(SqlSyntax, left => left.UniqueId, right => right.UniqueId);
+                    .From<DictionaryDto>(SqlSyntax)
+                    .LeftJoin<LanguageTextDto>(SqlSyntax)
+                    .On<DictionaryDto, LanguageTextDto>(SqlSyntax, left => left.UniqueId, right => right.UniqueId);
            }
            return sql;
        }
@@ -270,6 +275,8 @@ namespace Umbraco.Core.Persistence.Repositories

                        var translator = new SqlTranslator<IDictionaryItem>(sqlClause, Query<IDictionaryItem>.Builder);
                        var sql = translator.Translate();
+
+                        //must be sorted this way for the relator to work
                        sql.OrderBy<DictionaryDto>(x => x.UniqueId, SqlSyntax);

                        return Database.Fetch<DictionaryDto, LanguageTextDto, DictionaryDto>(new DictionaryLanguageTextRelator().Map, sql)
@@ -297,6 +304,9 @@ namespace Umbraco.Core.Persistence.Repositories

            protected override IEnumerable<DictionaryDto> PerformFetch(Sql sql)
            {
+                //must be sorted this way for the relator to work
+                sql.OrderBy<DictionaryDto>(x => x.UniqueId, SqlSyntax);
+
                return Database.Fetch<DictionaryDto, LanguageTextDto, DictionaryDto>(new DictionaryLanguageTextRelator().Map, sql);
            }

@@ -349,6 +359,9 @@ namespace Umbraco.Core.Persistence.Repositories

            protected override IEnumerable<DictionaryDto> PerformFetch(Sql sql)
            {
+                //must be sorted this way for the relator to work
+                sql.OrderBy<DictionaryDto>(x => x.UniqueId, SqlSyntax);
+
                return Database.Fetch<DictionaryDto, LanguageTextDto, DictionaryDto>(new DictionaryLanguageTextRelator().Map, sql);
            }

@@ -1,19 +1,14 @@
 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.DatabaseModelDefinitions;
 using Umbraco.Core.Persistence.Factories;
 using Umbraco.Core.Persistence.Querying;
 using Umbraco.Core.Persistence.UnitOfWork;
-using Umbraco.Core.Strings;

 namespace Umbraco.Core.Persistence.Repositories
 {
@@ -187,10 +182,12 @@ 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)
            {
-                //Treat media differently for now, as an Entity it will be returned with ALL of it's properties in the AdditionalData bag!
+                //for now treat media differently and include all property data too  
                var entities = _work.Database.Fetch<dynamic, UmbracoPropertyDto, UmbracoEntity>(
                    new UmbracoEntityRelator().Map, sql);

@@ -198,14 +195,16 @@ 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;                
            }
            
            
@@ -230,28 +229,29 @@ 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)
            {
-                //Treat media differently for now, as an Entity it will be returned with ALL of it's properties in the AdditionalData bag!
+                //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)
@@ -288,21 +288,21 @@ namespace Umbraco.Core.Persistence.Repositories

            if (isMedia)
            {
-                //Treat media differently for now, as an Entity it will be returned with ALL of it's properties in the AdditionalData bag!
+                //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();                
            }
        }

@@ -347,7 +347,7 @@ namespace Umbraco.Core.Persistence.Repositories
                    }
                });

-                //Treat media differently for now, as an Entity it will be returned with ALL of it's properties in the AdditionalData bag!
+                //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;
@@ -356,8 +356,15 @@ 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();
            }
        }

@@ -468,9 +475,10 @@ namespace Umbraco.Core.Persistence.Repositories
                {
                    if (isContent)
                    {
-                        //only content has this info
+                        //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");
@@ -485,21 +493,22 @@ 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");

                if (isContent)
                {
-                    //only content has this info
-                    entitySql
+                    //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("cmsContentType contenttype").On("contenttype.nodeId = content.contentType");                
            }

            if (isCount == false)
@@ -546,7 +555,7 @@ namespace Umbraco.Core.Persistence.Repositories
        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 });
+                .Where("umbracoNode.uniqueID = @UniqueID", new {UniqueID = key});

            if (isContent)
            {
@@ -609,13 +618,14 @@ namespace Umbraco.Core.Persistence.Repositories
                {
                    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());

@@ -626,7 +636,7 @@ namespace Umbraco.Core.Persistence.Repositories

            return sql;
        }
-        
+
        #endregion

        /// <summary>
@@ -652,33 +662,7 @@ namespace Umbraco.Core.Persistence.Repositories
            return _work.Database.ExecuteScalar<int>(sql) > 0;
        }

-        #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
@@ -762,6 +746,99 @@ 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
    }
 }
@@ -8,6 +8,13 @@ namespace Umbraco.Core.Persistence.Repositories
 {
    public interface IContentTypeRepository : IContentTypeCompositionRepository<IContentType>
    {
+        /// <summary>
+        /// Given the path of a content item, this will return true if the content item exists underneath a list view content item
+        /// </summary>
+        /// <param name="contentPath"></param>
+        /// <returns></returns>
+        bool HasContainerInPath(string contentPath);
+
        /// <summary>
        /// Gets all entities of the specified <see cref="PropertyType"/> query
        /// </summary>
@@ -23,7 +23,7 @@ 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
@@ -37,6 +37,9 @@ namespace Umbraco.Core.Persistence.Repositories

        private IMacro GetBySql(Sql sql)
        {
+            //must be sorted this way for the relator to work
+            sql.OrderBy<MacroDto>(x => x.Id, SqlSyntax);
+
            var macroDto = Database.Fetch<MacroDto, MacroPropertyDto, MacroDto>(new MacroPropertyRelator().Map, sql).FirstOrDefault();
            if (macroDto == null)
                return null;
@@ -68,7 +71,10 @@ namespace Umbraco.Core.Persistence.Repositories

        private IEnumerable<IMacro> GetAllNoIds()
        {
-            var sql = GetBaseQuery(false);
+            var sql = GetBaseQuery(false)
+                //must be sorted this way for the relator to work
+                .OrderBy<MacroDto>(x => x.Id, SqlSyntax);
+
            return ConvertFromDtos(Database.Fetch<MacroDto, MacroPropertyDto, MacroDto>(new MacroPropertyRelator().Map, sql))
                .ToArray();// we don't want to re-iterate again!
        }
@@ -92,6 +98,9 @@ namespace Umbraco.Core.Persistence.Repositories
            var translator = new SqlTranslator<IMacro>(sqlClause, query);
            var sql = translator.Translate();

+            //must be sorted this way for the relator to work
+            sql.OrderBy<MacroDto>(x => x.Id, SqlSyntax);
+
            var dtos = Database.Fetch<MacroDto, MacroPropertyDto, MacroDto>(new MacroPropertyRelator().Map, sql);

            foreach (var dto in dtos)
@@ -114,13 +123,13 @@ namespace Umbraco.Core.Persistence.Repositories
            return sql;
        }

-        private static Sql GetBaseQuery()
+        private Sql GetBaseQuery()
        {
            var sql = new Sql();
            sql.Select("*")
-               .From<MacroDto>()
-               .LeftJoin<MacroPropertyDto>()
-               .On<MacroDto, MacroPropertyDto>(left => left.Id, right => right.Macro);
+                .From<MacroDto>()
+                .LeftJoin<MacroPropertyDto>()
+                .On<MacroDto, MacroPropertyDto>(left => left.Id, right => right.Macro);
            return sql;
        }

@@ -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;
        }
@@ -94,6 +94,9 @@ namespace Umbraco.Core.Persistence.Repositories
                .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;
        }
@@ -161,25 +164,27 @@ namespace Umbraco.Core.Persistence.Repositories
        {
            // fetch returns a list so it's ok to iterate it in this method
            var dtos = Database.Fetch<ContentVersionDto, ContentDto, NodeDto>(sqlFull);
-            var content = new IMedia[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<IMedia, bool>>();
+            var defs = new DocumentDefinitionCollection();

            //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>();

-            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 = IsolatedCache.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;
                    }
                }
@@ -197,39 +202,34 @@ namespace Umbraco.Core.Persistence.Repositories
                    contentType = _mediaTypeRepository.Get(dto.ContentDto.ContentTypeId);
                    contentTypes[dto.ContentDto.ContentTypeId] = contentType;
                }
-                
-                content[i] = MediaFactory.BuildEntity(dto, contentType);

-                // need properties
-                defs.Add(new DocumentDefinition(
-                    dto.NodeId,
-                    dto.VersionId,
-                    dto.VersionDate,
-                    dto.ContentDto.NodeDto.CreateDate,
-                    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(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
                cc.ResetDirtyProperties(false);
            }

-            return content;
+            return content.Select(x => x.Item1).ToArray();
        }

        public override IMedia GetByVersion(Guid versionId)
@@ -243,7 +243,7 @@ namespace Umbraco.Core.Persistence.Repositories
            if (dto == null)
                return null;

-            var content = CreateMediaFromDto(dto, versionId, sql);
+            var content = CreateMediaFromDto(dto, sql);

            return content;
        }
@@ -263,10 +263,12 @@ 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, SqlSyntax)
+                    .Where<NodeDto>(x => x.Trashed == false, SqlSyntax)
                    .OrderBy<NodeDto>(x => x.NodeId, SqlSyntax);
                var sql = SqlSyntax.SelectTop(query, groupSize);
                var xmlItems = ProcessQuery(sql, new PagingSqlQuery(sql))
@@ -290,7 +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 });
+                }
            }
        }

@@ -526,20 +559,19 @@ namespace Umbraco.Core.Persistence.Repositories
        /// Private method to create a media object from a ContentDto
        /// </summary>
        /// <param name="dto"></param>
-        /// <param name="versionId"></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 docDef = new DocumentDefinition(dto.NodeId, versionId, media.UpdateDate, media.CreateDate, contentType);
+            var docDef = new DocumentDefinition(dto, contentType);

            var properties = GetPropertyCollection(new PagingSqlQuery(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
@@ -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;

@@ -448,16 +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(new PagingSqlQuery(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;

        }

@@ -658,20 +658,21 @@ namespace Umbraco.Core.Persistence.Repositories
            // fetch returns a list so it's ok to iterate it in this method
            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 = IsolatedCache.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;
                    }
                }
@@ -679,60 +680,54 @@ 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(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
@@ -46,7 +46,9 @@ namespace Umbraco.Core.Persistence.Repositories
                var statement = string.Join(" OR ", ids.Select(x => string.Format("umbracoNode.id='{0}'", x)));
                sql.Where(statement);
            }
-            sql.OrderByDescending<NodeDto>(x => x.NodeId, SqlSyntax);
+
+            //must be sorted this way for the relator to work
+            sql.OrderBy<MemberTypeReadOnlyDto>(x => x.UniqueId, SqlSyntax);

            var dtos =
                Database.Fetch<MemberTypeReadOnlyDto, PropertyTypeReadOnlyDto, PropertyTypeGroupReadOnlyDto, MemberTypeReadOnlyDto>(
@@ -62,7 +64,8 @@ namespace Umbraco.Core.Persistence.Repositories
            var subquery = translator.Translate();
            var sql = GetBaseQuery(false)
                .Append(new Sql("WHERE umbracoNode.id IN (" + subquery.SQL + ")", subquery.Arguments))
-                .OrderBy<NodeDto>(x => x.SortOrder, SqlSyntax);
+                //must be sorted this way for the relator to work
+                .OrderBy<MemberTypeReadOnlyDto>(x => x.UniqueId, SqlSyntax);

            var dtos =
                Database.Fetch<MemberTypeReadOnlyDto, PropertyTypeReadOnlyDto, PropertyTypeGroupReadOnlyDto, MemberTypeReadOnlyDto>(
@@ -31,7 +31,7 @@ namespace Umbraco.Core.Persistence.Repositories
 		/// </summary>
 		protected internal new IScopeUnitOfWork UnitOfWork
 		{
-			get { return (IScopeUnitOfWork)base.UnitOfWork; }
+			get { return base.UnitOfWork; }
 		}

 		protected UmbracoDatabase Database
@@ -75,10 +75,5 @@ namespace Umbraco.Core.Persistence.Repositories
                Database.Execute(delete, new { Id = GetEntityId(entity) });
            }
        }
-
-        protected virtual TId GetEntityId(TEntity entity)
-        {
-            return (TId)(object)entity.Id;
-        }
    }
 }
@@ -38,10 +38,12 @@ 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
+            sql.OrderBy<AccessDto>(dto => dto.Id, SqlSyntax);
+
            var dtos = Database.Fetch<AccessDto, AccessRuleDto, AccessDto>(new AccessRulesRelator().Map, sql);
            return dtos.Select(factory.BuildEntity);
        }
@@ -53,6 +55,10 @@ 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
+            sql.OrderBy<AccessDto>(dto => dto.Id, SqlSyntax);
+
            var dtos = Database.Fetch<AccessDto, AccessRuleDto, AccessDto>(new AccessRulesRelator().Map, sql);
            return dtos.Select(factory.BuildEntity);
        }
@@ -64,6 +70,7 @@ namespace Umbraco.Core.Persistence.Repositories
                .From<AccessDto>(SqlSyntax)
                .LeftJoin<AccessRuleDto>(SqlSyntax)
                .On<AccessDto, AccessRuleDto>(SqlSyntax, left => left.Id, right => right.AccessId);
+                

            return sql;
        }
@@ -104,6 +111,11 @@ 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();
@@ -124,7 +136,7 @@ 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");
@@ -150,6 +162,8 @@ namespace Umbraco.Core.Persistence.Repositories
                Database.Delete<AccessRuleDto>("WHERE id=@Id", new {Id = removedRule});
            }

+            entity.ClearRemovedRules();
+
            entity.ResetDirtyProperties();
        }

@@ -158,4 +172,4 @@ namespace Umbraco.Core.Persistence.Repositories
            return entity.Key;
        }
    }
-}
+}
@@ -13,10 +13,10 @@ namespace Umbraco.Core.Persistence.Repositories
 {
    internal abstract class RepositoryBase : DisposableObject
    {
-        private readonly IUnitOfWork _work;
+        private readonly IScopeUnitOfWork _work;
        private readonly CacheHelper _globalCache;

-        protected RepositoryBase(IUnitOfWork work, CacheHelper cache, ILogger logger)
+        protected RepositoryBase(IScopeUnitOfWork work, CacheHelper cache, ILogger logger)
        {
            if (work == null) throw new ArgumentNullException("work");
            if (cache == null) throw new ArgumentNullException("cache");
@@ -29,7 +29,7 @@ namespace Umbraco.Core.Persistence.Repositories
        /// <summary>
        /// Returns the Unit of Work added to the repository
        /// </summary>
-        protected internal IUnitOfWork UnitOfWork
+        protected internal IScopeUnitOfWork UnitOfWork
        {
            get { return _work; }
        }
@@ -76,7 +76,7 @@ namespace Umbraco.Core.Persistence.Repositories
    internal abstract class RepositoryBase<TId, TEntity> : RepositoryBase, IRepositoryQueryable<TId, TEntity>, IUnitOfWorkRepository
        where TEntity : class, IAggregateRoot
    {
-        protected RepositoryBase(IUnitOfWork work, CacheHelper cache, ILogger logger)
+        protected RepositoryBase(IScopeUnitOfWork work, CacheHelper cache, ILogger logger)
            : base(work, cache, logger)
        {
        }
@@ -102,7 +102,7 @@ namespace Umbraco.Core.Persistence.Repositories
            {
                if (_isolatedCache != null) return _isolatedCache;

-                var scope = ((ScopeUnitOfWork) UnitOfWork).Scope; // fixme cast!
+                var scope = UnitOfWork.Scope;
                IsolatedRuntimeCache provider;
                switch (scope.RepositoryCacheMode)
                {
@@ -179,14 +179,17 @@ namespace Umbraco.Core.Persistence.Repositories
                if (GlobalCache == CacheHelper.NoCache)
                    return _cachePolicy = NoRepositoryCachePolicy<TEntity, TId>.Instance;
                
+                // create the cache policy using IsolatedCache which is either global
+                // or scoped depending on the repository cache mode for the current scope
                _cachePolicy = CreateCachePolicy(IsolatedCache);
-                var scope = ((ScopeUnitOfWork) UnitOfWork).Scope; // fixme cast!
+                var scope = UnitOfWork.Scope;
                switch (scope.RepositoryCacheMode)
                {
                    case RepositoryCacheMode.Default:
                        break;
                    case RepositoryCacheMode.Scoped:
-                        _cachePolicy = _cachePolicy.Scoped(GetIsolatedCache(GlobalCache.IsolatedRuntimeCache), scope);
+                        var globalIsolatedCache = GetIsolatedCache(GlobalCache.IsolatedRuntimeCache);
+                        _cachePolicy = _cachePolicy.Scoped(globalIsolatedCache, scope);
                        break;
                    default:
                        throw new Exception("oops: cache mode.");
@@ -21,7 +21,9 @@ namespace Umbraco.Core.Persistence.Repositories
            : base(work, CacheHelper.NoCache, logger, sqlSyntax)
        {
            // managing the cache our own way (no policy etc)
-            // fixme - ServerRegistrationRepository does *not* implement scoped cache at the moment!
+            // note: this means that the ServerRegistrationRepository does *not* implement scoped cache,
+            // and this is because the repository is special and should not participate in scopes
+            // (cleanup in v8)
            _globalCache = globalCache;
        }

@@ -270,12 +270,11 @@ namespace Umbraco.Core.Persistence.Repositories

            // once content has been set, "template on disk" are not "on disk" anymore
            template.Content = content;
+            SetVirtualPath(template);

            if (dto.Design == content) return;
            dto.Design = content;
            Database.Update(dto); // though... we don't care about the db value really??!!
-
-            SetVirtualPath(template);
        }

        protected override void PersistDeletedItem(ITemplate entity)
@@ -39,6 +39,8 @@ namespace Umbraco.Core.Persistence.Repositories
        {
            var sql = GetBaseQuery(false);
            sql.Where(GetBaseWhereClause(), new { Id = id });
+            //must be sorted this way for the relator to work
+            sql.OrderBy<UserDto>(x => x.Id, SqlSyntax);

            var dto = Database.Fetch<UserDto, User2AppDto, UserDto>(new UserSectionRelator().Map, sql).FirstOrDefault();
            
@@ -60,7 +62,10 @@ namespace Umbraco.Core.Persistence.Repositories
            {
                sql.Where("umbracoUser.id in (@ids)", new {ids = ids});
            }
-            
+
+            //must be sorted this way for the relator to work
+            sql.OrderBy<UserDto>(x => x.Id, SqlSyntax);
+
            return ConvertFromDtos(Database.Fetch<UserDto, User2AppDto, UserDto>(new UserSectionRelator().Map, sql))
                    .ToArray(); // important so we don't iterate twice, if we don't do this we can end up with null values in cache if we were caching.    
        }
@@ -71,6 +76,9 @@ namespace Umbraco.Core.Persistence.Repositories
            var translator = new SqlTranslator<IUser>(sqlClause, query);
            var sql = translator.Translate();

+            //must be sorted this way for the relator to work
+            sql.OrderBy<UserDto>(x => x.Id, SqlSyntax);
+
            var dtos = Database.Fetch<UserDto, User2AppDto, UserDto>(new UserSectionRelator().Map, sql)
                .DistinctBy(x => x.Id);

@@ -96,13 +104,13 @@ namespace Umbraco.Core.Persistence.Repositories
            return sql;
        }

-        private static Sql GetBaseQuery(string columns)
+        private Sql GetBaseQuery(string columns)
        {
            var sql = new Sql();
            sql.Select(columns)
-                      .From<UserDto>()
-                      .LeftJoin<User2AppDto>()
-                      .On<UserDto, User2AppDto>(left => left.Id, right => right.UserId);
+                .From<UserDto>()
+                .LeftJoin<User2AppDto>()
+                .On<UserDto, User2AppDto>(left => left.Id, right => right.UserId);
            return sql;
        }

@@ -300,6 +308,8 @@ namespace Umbraco.Core.Persistence.Repositories
            var innerSql = GetBaseQuery("umbracoUser.id");
            innerSql.Where("umbracoUser2app.app = " + SqlSyntax.GetQuotedValue(sectionAlias));
            sql.Where(string.Format("umbracoUser.id IN ({0})", innerSql.SQL));
+            //must be sorted this way for the relator to work
+            sql.OrderBy<UserDto>(x => x.Id, SqlSyntax);

            return ConvertFromDtos(Database.Fetch<UserDto, User2AppDto, UserDto>(new UserSectionRelator().Map, sql));
        }
@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Collections.ObjectModel;
+using System.Data.SqlTypes;
 using System.Diagnostics;
 using System.Linq;
 using System.Text;
@@ -33,6 +34,11 @@ namespace Umbraco.Core.Persistence.Repositories
    {
        private readonly IContentSection _contentSection;

+        /// <summary>
+        /// This is used for unit tests ONLY
+        /// </summary>
+        internal static bool ThrowOnWarning = false;
+
        protected VersionableRepositoryBase(IScopeUnitOfWork work, CacheHelper cache, ILogger logger, ISqlSyntaxProvider sqlSyntax, IContentSection contentSection)
            : base(work, cache, logger, sqlSyntax)
        {
@@ -503,7 +509,7 @@ namespace Umbraco.Core.Persistence.Repositories
        /// <param name="sql"></param>
        /// <param name="documentDefs"></param>
        /// <returns></returns>
-        protected IDictionary<int, PropertyCollection> GetPropertyCollection(
+        protected IDictionary<Guid, PropertyCollection> GetPropertyCollection(
            Sql sql,
            IReadOnlyCollection<DocumentDefinition> documentDefs)
        {
@@ -516,11 +522,11 @@ namespace Umbraco.Core.Persistence.Repositories
        /// <param name="pagingSqlQuery"></param>
        /// <param name="documentDefs"></param>
        /// <returns></returns>
-        protected IDictionary<int, PropertyCollection> GetPropertyCollection(
+        protected IDictionary<Guid, PropertyCollection> GetPropertyCollection(
            PagingSqlQuery pagingSqlQuery,
            IReadOnlyCollection<DocumentDefinition> documentDefs)
        {
-            if (documentDefs.Count == 0) return new Dictionary<int, PropertyCollection>();
+            if (documentDefs.Count == 0) return new Dictionary<Guid, PropertyCollection>();

            //initialize to the query passed in
            var docSql = pagingSqlQuery.PrePagedSql;
@@ -576,16 +582,16 @@ 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, propertytypeid
+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<int, PropertyCollection>();
+            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[]>();
@@ -594,11 +600,13 @@ ORDER BY contentNodeId, propertytypeid
            var propertyDataSetEnumerator = allPropertyData.GetEnumerator();
            var hasCurrent = false; // initially there is no enumerator.Current

+            var comparer = new DocumentDefinitionComparer(SqlSyntax);
+
            try
            {
                //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))
+                foreach (var def in documentDefs.OrderBy(x => x.Id).ThenBy(x => x.Version, comparer))
                {
                    // get the resolved properties from our local cache, or resolve them and put them in cache
                    PropertyType[] compositionProperties;
@@ -617,15 +625,17 @@ ORDER BY contentNodeId, propertytypeid
                    var propertyDataDtos = new List<PropertyDataDto>();
                    while (hasCurrent || propertyDataSetEnumerator.MoveNext())
                    {
-                        if (propertyDataSetEnumerator.Current.NodeId == def.Id)
+                        //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
+                            hasCurrent = true;  // enumerator.Current is available for another def
+                            break;              // no more propertyDataDto for this def
                        }
                    }

@@ -660,11 +670,19 @@ ORDER BY contentNodeId, propertytypeid
                        }
                    }

-                    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
@@ -687,8 +705,8 @@ ORDER BY contentNodeId, propertytypeid
                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
@@ -772,25 +790,159 @@ ORDER BY contentNodeId, propertytypeid
        /// <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(int id, Guid version, DateTime versionDate, DateTime createDate, IContentTypeComposition composition)
+            public DocumentDefinition(DocumentDto dto, IContentTypeComposition composition)
            {
-                Id = id;
-                Version = version;
-                VersionDate = versionDate;
-                CreateDate = createDate;
+                DocumentDto = dto;
+                ContentVersionDto = dto.ContentVersionDto;
                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; }
+            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>
@@ -32,7 +32,7 @@ namespace Umbraco.Core.Persistence
            //if (sqlSyntax == null) throw new ArgumentNullException("sqlSyntax");
            if (settings == null) throw new ArgumentNullException("settings");

-            _cacheHelper = cacheHelper;            
+            _cacheHelper = cacheHelper;

            //IMPORTANT: We will force the DeepCloneRuntimeCacheProvider to be used here which is a wrapper for the underlying
            // runtime cache to ensure that anything that can be deep cloned in/out is done so, this also ensures that our tracks
@@ -49,7 +49,12 @@ namespace Umbraco.Core.Persistence
                _cacheHelper.IsolatedRuntimeCache.CacheFactory = type =>
                {
                    var cache = origFactory(type);
-                    return new DeepCloneRuntimeCacheProvider(cache);
+
+                    //if the result is already a DeepCloneRuntimeCacheProvider then return it, otherwise
+                    //wrap the result with a DeepCloneRuntimeCacheProvider
+                    return cache is DeepCloneRuntimeCacheProvider 
+                        ? cache 
+                        : new DeepCloneRuntimeCacheProvider(cache);
                };
            }

@@ -71,7 +76,7 @@ namespace Umbraco.Core.Persistence
        {
        }

-        [Obsolete("Use the ctor specifying all dependencies instead, NOTE: disableAllCache has zero effect")]        
+        [Obsolete("Use the ctor specifying all dependencies instead, NOTE: disableAllCache has zero effect")]
        public RepositoryFactory(bool disableAllCache, CacheHelper cacheHelper)
            : this(cacheHelper, LoggerResolver.Current.Logger, SqlSyntaxContext.SqlSyntaxProvider, UmbracoConfig.For.UmbracoSettings())
        {
@@ -86,7 +91,7 @@ namespace Umbraco.Core.Persistence
        {
        }

-     
+
        #endregion

        public virtual IExternalLoginRepository CreateExternalLoginRepository(IScopeUnitOfWork uow)
@@ -235,12 +240,13 @@ namespace Umbraco.Core.Persistence
        [EditorBrowsable(EditorBrowsableState.Never)]
        public virtual IStylesheetRepository CreateStylesheetRepository(IUnitOfWork uow, IDatabaseUnitOfWork db)
        {
+            // note: the second unit of work is ignored.
            return new StylesheetRepository(uow, FileSystemProviderManager.Current.StylesheetsFileSystem);
        }

        public virtual ITemplateRepository CreateTemplateRepository(IScopeUnitOfWork uow)
        {
-            return new TemplateRepository(uow, 
+            return new TemplateRepository(uow,
                _cacheHelper,
                _logger, _sqlSyntax,
                FileSystemProviderManager.Current.MasterPagesFileSystem,
@@ -279,7 +285,7 @@ namespace Umbraco.Core.Persistence
        }

        public virtual IUserRepository CreateUserRepository(IScopeUnitOfWork uow)
-        {            
+        {
            return new UserRepository(
                uow,
                //Need to cache users - we look up user information more than anything in the back office!
--- a/Show More
+++ b/Show More