.

VizhTalk.Learning.Domain/Entities/Language.cs

@@ -18,6 +18,7 @@ public class Language : Entity<LanguageId>, IAggregateRoot
 
     public static Language CreateNew(LanguageTitle title)
         => new(title);
-
-
+    
+    public void SetTitle(LanguageTitle title)
+        => Title = title;
 }

VizhTalk.Learning.Domain/TypeIds/LanguageId.cs

@@ -7,9 +7,9 @@ using VizhTalk.BuildingBlocks.Domain;
 
 namespace VizhTalk.Learning.Domain.TypeIds
 {
-    public class LanguageId : TypedIdValueBase<long>
+    public class LanguageId : TypedIdValueBase<int>
     {
-        public LanguageId(long value) : base(value)
+        public LanguageId(int value) : base(value)
         {
         }
     }

VizhTalk.Learning.Domain/ValueObjects/LanguageTitle.cs

@@ -17,5 +17,12 @@ namespace VizhTalk.Learning.Domain.ValueObjects
             Value = title;
         }
         public string Value { get; private set; }
+        public override bool Equals(object? obj)
+        {
+            if (obj is string value)
+                return Value == value;
+
+            return base.Equals(obj);
+        }
     }
 }