start new controllers

zero.Core/Models/ZeroReference.cs

@@ -0,0 +1,30 @@
+namespace zero.Models;
+
+public class ZeroReference
+{
+  public ZeroReference() { }
+
+  public ZeroReference(ZeroEntity entity)
+  {
+    Id = entity.Id;
+    Name = entity.Name;
+  }
+
+  public static ZeroReference From(ZeroEntity entity)
+  {
+    return entity == null ? null : new ZeroReference(entity);
+  }
+
+  public static ZeroReference From<T>(T entity, Func<T, string> transform) where T : ZeroEntity
+  {
+    return entity == null ? null : new ZeroReference()
+    {
+      Id = entity.Id,
+      Name = transform(entity)
+    };
+  }
+
+  public string Id { get; set; }
+
+  public string Name { get; set; }
+}