Moved ContentType to IKeyedTopicViewModel

This will allow e.g. `TopicViewModelCollection<T>` to filter by content type, which is a common feature of topic (view model) collections.

Author: JeremyCaney

OnTopic/Models/IKeyedTopicViewModel.cs

@@ -7,6 +7,7 @@
 using System.ComponentModel.DataAnnotations;
 using System.Diagnostics.CodeAnalysis;
 using OnTopic.Mapping;
+using OnTopic.Metadata;
 
 namespace OnTopic.Models {
 
@@ -36,5 +37,18 @@ public interface IKeyedTopicViewModel {
     [Required, NotNull, DisallowNull]
     string? Key { get; init; }
 
+    /*==========================================================================================================================
+    | PROPERTY: CONTENT TYPE
+    \-------------------------------------------------------------------------------------------------------------------------*/
+    /// <summary>
+    ///   Gets the key name of the content type that the current topic represents.
+    /// </summary>
+    /// <remarks>
+    ///   Each topic is associated with a content type. The content type determines which attributes are displayed in the Topics
+    ///   Editor (via the <see cref="ContentTypeDescriptor.AttributeDescriptors"/> property).
+    /// </remarks>
+    [Required, NotNull, DisallowNull]
+    string? ContentType { get; init; }
+
   } //Class
 } //Namespace

OnTopic/Models/ITopicBindingModel.cs

@@ -3,10 +3,7 @@
 | Client        Ignia, LLC
 | Project       Topics Library
 \=============================================================================================================================*/
-using System.ComponentModel.DataAnnotations;
-using System.Diagnostics.CodeAnalysis;
 using OnTopic.Mapping.Reverse;
-using OnTopic.Metadata;
 
 namespace OnTopic.Models {
 
@@ -22,18 +19,6 @@ namespace OnTopic.Models {
   /// </remarks>
   public interface ITopicBindingModel: IKeyedTopicViewModel {
 
-    /*==========================================================================================================================
-    | PROPERTY: CONTENT TYPE
-    \-------------------------------------------------------------------------------------------------------------------------*/
-    /// <summary>
-    ///   Gets the key name of the content type that the current topic represents.
-    /// </summary>
-    /// <remarks>
-    ///   Each topic is associated with a content type. The content type determines which attributes are displayed in the Topics
-    ///   Editor (via the <see cref="ContentTypeDescriptor.AttributeDescriptors"/> property).
-    /// </remarks>
-    [Required, NotNull, DisallowNull]
-    string? ContentType { get; init; }
 
   } //Class
 } //Namespace

OnTopic/Models/ITopicViewModel.cs

@@ -59,7 +59,7 @@ public interface ITopicViewModel: IKeyedTopicViewModel, IAssociatedTopicBindingM
     /// <remarks>
     ///   This value can be set via the query string (via the <c>TopicViewResultExecutor</c> class), via the Accepts header
     ///   (also via the <c>TopicViewResultExecutor</c> class), on the topic itself (via this property), or via the <see cref="
-    ///   ITopicBindingModel.ContentType"/>. By default, it will be set to the name of the <see cref="ITopicBindingModel.
+    ///   IKeyedTopicViewModel.ContentType"/>. By default, it will be set to the name of the <see cref="IKeyedTopicViewModel.
     ///   ContentType"/>; e.g., if the Content Type is <c>Page</c>, then the view will be <c>Page</c>. This will cause the <c>
     ///   TopicViewResultExecutor</c> to look for a view at, for instance, <c>/Views/Page/Page.cshtml</c>.
     /// </remarks>