Added a VirtualFolder entity, a resolver, and a CollectionType property.

MediaBrowser.Model/Entities/BaseItem.cs

@@ -6,6 +6,29 @@ namespace MediaBrowser.Model.Entities
 {
     public abstract class BaseItem : BaseEntity, IHasProviderIds
     {
+        /// <summary>
+        /// Goes up the tree to find the virtual folder parent
+        /// </summary>
+        public VirtualFolder VirtualFolder
+        {
+            get
+            {
+                var vf = this as VirtualFolder;
+
+                if (vf != null)
+                {
+                    return vf;
+                }
+
+                if (Parent != null)
+                {
+                    return Parent.VirtualFolder;
+                }
+
+                return null;
+            }
+        }
+
         public string SortName { get; set; }
 
         /// <summary>

MediaBrowser.Model/Entities/Folder.cs

@@ -8,14 +8,6 @@ namespace MediaBrowser.Model.Entities
     {
         public bool IsRoot { get; set; }
 
-        public bool IsVirtualFolder
-        {
-            get
-            {
-                return Parent != null && Parent.IsRoot;
-            }
-        }
-
         public BaseItem[] Children { get; set; }
 
         /// <summary>

MediaBrowser.Model/Entities/IHasProviderIds.cs

@@ -3,7 +3,7 @@
 namespace MediaBrowser.Model.Entities
 {
     /// <summary>
-    /// Since BaseItem and DTOBaseItem both have ProviderIds, this interface helps avoid code repition using extension methods
+    /// Since BaseItem and DTOBaseItem both have ProviderIds, this interface helps avoid code repition by using extension methods
     /// </summary>
     public interface IHasProviderIds
     {

MediaBrowser.Model/Entities/ItemSpecialCounts.cs

@@ -2,7 +2,7 @@
 namespace MediaBrowser.Model.Entities
 {
     /// <summary>
-    /// Since it can be slow to collect this data. This class helps provide a way to calculate them all at once.
+    /// Since it can be slow to collect this data, this class helps provide a way to calculate them all at once.
     /// </summary>
     public class ItemSpecialCounts
     {

MediaBrowser.Model/Entities/VirtualFolder.cs

@@ -0,0 +1,8 @@
+
+namespace MediaBrowser.Model.Entities
+{
+    public class VirtualFolder : Folder
+    {
+        public string CollectionType { get; set; }
+    }
+}

MediaBrowser.Model/MediaBrowser.Model.csproj

@@ -46,6 +46,7 @@
     <Compile Include="Entities\Person.cs" />
     <Compile Include="Entities\Studio.cs" />
     <Compile Include="Entities\Video.cs" />
+    <Compile Include="Entities\VirtualFolder.cs" />
     <Compile Include="Entities\Year.cs" />
     <Compile Include="Plugins\BasePluginConfiguration.cs" />
     <Compile Include="DTO\PluginInfo.cs" />