Show global TermsAndConditions changed banner if member is logged in and has no date at which they accepted the terms of service

OurUmbraco.Site/OurUmbraco.Site.csproj

@@ -1755,6 +1755,7 @@
     <Content Include="masterpages\ProjectPage.master" />
     <Content Include="umbraco\lib\bootstrap-tabdrop\README.md" />
     <Content Include="Views\MacroPartials\Releases\ReleasesDropdown.cshtml" />
+    <Content Include="Views\Partials\Community\TermsAndConditions.cshtml" />
     <None Include="Views\Partials\Forum\MemberBadge.cshtml" />
     <Content Include="Views\Search\Search.aspx" />
     <Content Include="Views\Web.config" />

OurUmbraco.Site/Views/MacroPartials/Global/AlertBar.cshtml

@@ -12,6 +12,8 @@
     }
 }
 
+@Html.Action("RenderTerms", "TermsAndConditions")
+
 @* We'll show it differently on the homepage *@ 
 @if (showNotification && Model.Content.Id != home.Id)
 {

OurUmbraco.Site/Views/Partials/Community/TermsAndConditions.cshtml

@@ -0,0 +1,13 @@
+@using OurUmbraco.Our.Controllers
+@model OurUmbraco.Our.Models.TermsAndConditionsModel
+@if (Model.ShowTermsAndConditionsBanner)
+{
+    <div class="alertbar__blue">
+        Hi! Our <a href="/terms-and-conditions">terms and conditions</a> for Our Umbraco have changed. <a href="/terms-and-conditions">Give them a read (we promise they're short)</a>.<br />
+        Your continued use of this site after changes are posted constitutes your acceptance of the terms and conditions as modified.<br />
+        @using (Html.BeginUmbracoForm<TermsAndConditionsController>("AcceptTerms"))
+        {
+            <input type="submit" value="Okay, noted. Close this notification." style="margin: 4px 0;"/>
+        }
+    </div>
+}

OurUmbraco/Our/Controllers/TermsAndConditionsController.cs

@@ -0,0 +1,43 @@
+using System;
+using System.Web.Mvc;
+using OurUmbraco.Our.Models;
+using Umbraco.Web;
+using Umbraco.Web.Mvc;
+
+namespace OurUmbraco.Our.Controllers
+{
+    public class TermsAndConditionsController : SurfaceController
+    {
+        [ChildActionOnly]
+        public ActionResult RenderTerms()
+        {
+            var model = new TermsAndConditionsModel();
+            var currentMember = Members.GetCurrentMember();
+            if (currentMember != null)
+            {
+                var tosAccepted = currentMember.GetPropertyValue<DateTime>("tos");
+                var newTosDate = new DateTime(2016, 09, 01);
+                if ((newTosDate - tosAccepted).TotalDays > 1)
+                {
+                    model.ShowTermsAndConditionsBanner = true;
+                }
+            }
+
+            return PartialView("~/Views/Partials/Community/TermsAndConditions.cshtml", model);
+        }
+
+        public ActionResult AcceptTerms()
+        {
+            var currentMember = Members.GetCurrentMember();
+            if (currentMember != null)
+            {
+                var memberService = Services.MemberService;
+                var member = memberService.GetById(currentMember.Id);
+                member.SetValue("tos", DateTime.Now);
+                memberService.Save(member);
+            }
+
+            return RedirectToCurrentUmbracoPage();
+        }
+    }
+}

OurUmbraco/Our/Models/TermsAndConditionsModel.cs

@@ -0,0 +1,7 @@
+namespace OurUmbraco.Our.Models
+{
+    public class TermsAndConditionsModel
+    {
+        public bool ShowTermsAndConditionsBanner { get; set; }
+    }
+}

OurUmbraco/OurUmbraco.csproj

@@ -415,6 +415,7 @@
     <Compile Include="Our\Controllers\ProfileNotificationController.cs" />
     <Compile Include="Our\Controllers\ProjectController.cs" />
     <Compile Include="Our\Controllers\RegisterController.cs" />
+    <Compile Include="Our\Controllers\TermsAndConditionsController.cs" />
     <Compile Include="Our\CustomHandlers\CommentVote.cs" />
     <Compile Include="Our\CustomHandlers\ExternalVote.cs" />
     <Compile Include="Our\CustomHandlers\ForumIndexer.cs" />
@@ -453,6 +454,7 @@
     <Compile Include="Our\Models\RegisterModel.cs" />
     <Compile Include="Our\Models\SearchResultContentModel.cs" />
     <Compile Include="Our\Models\SearchResultModel.cs" />
+    <Compile Include="Our\Models\TermsAndConditionsModel.cs" />
     <Compile Include="Our\ProjectFileUploadHandler.cs" />
     <Compile Include="Our\Rest.cs" />
     <Compile Include="Our\Scheduling\Scheduler.cs" />