Applied IAssociatedTopicBindingModel to ITopicViewModel

Since `UniqueKey` is defined on both `ITopicBindingModel` and `IAssociatedTopicBindingModel`, and there's no other "pollution" from any otherwise unnecessary interface requirements on `IAssociatedTopicBindingModel`, we can derive `ITopicBindingModel` from `IAssociatedTopicBindingModel`, thus allowing them to share this definition, while also allowing implementations to satisfy both interfaces. This can also be applied to `TopicViewModel`.

Author: JeremyCaney

OnTopic.ViewModels/TopicViewModel.cs

@@ -20,7 +20,7 @@ namespace OnTopic.ViewModels {
   ///   default implementations that can be used directly, used as base classes, or overwritten at the presentation level. They
   ///   are supplied for convenience to model factory default settings for out-of-the-box content types.
   /// </remarks>
-  public record TopicViewModel: ITopicViewModel {
+  public record TopicViewModel: ITopicViewModel, IKeyedTopicViewModel, IAssociatedTopicBindingModel {
 
     /*==========================================================================================================================
     | ID

OnTopic/Models/ITopicViewModel.cs

@@ -28,7 +28,7 @@ namespace OnTopic.Models {
   ///     presentation layer and any supporting libraries.
   ///   </para>
   /// </remarks>
-  public interface ITopicViewModel: IKeyedTopicViewModel {
+  public interface ITopicViewModel: IKeyedTopicViewModel, IAssociatedTopicBindingModel {
 
     /*==========================================================================================================================
     | PROPERTY: ID
@@ -38,20 +38,12 @@ public interface ITopicViewModel: IKeyedTopicViewModel {
     /// </summary>
     int Id { get; init; }
 
-    /*==========================================================================================================================
-    | PROPERTY: UNIQUE KEY
-    \-------------------------------------------------------------------------------------------------------------------------*/
-    /// <summary>
-    ///   Gets or sets the topic's <see cref="UniqueKey"/> attribute, the unique text identifier for the topic.
-    /// </summary>
-    string? UniqueKey { get; init; }
-
     /*==========================================================================================================================
     | PROPERTY: WEB PATH
     \-------------------------------------------------------------------------------------------------------------------------*/
     /// <summary>
-    ///   Gets or sets the topic's <see cref="WebPath"/> attribute, which represents the <see cref="UniqueKey"/> in its URL
-    ///   format.
+    ///   Gets or sets the topic's <see cref="WebPath"/> attribute, which represents the <see cref="IAssociatedTopicBindingModel
+    ///   .UniqueKey"/> in its URL format.
     /// </summary>
     string? WebPath { get; init; }