lib/rom/repository/changeset/update.rb in rom-repository-0.3.1 vs lib/rom/repository/changeset/update.rb in rom-repository-1.0.0.beta1

@@ -69,14 +69,24 @@
       #
       # @api public
       def diff
         @diff ||=
           begin
-            new_tuple = data.to_a
+            new_tuple = __data__.to_a
             ori_tuple = original.to_a
 
             Hash[new_tuple - (new_tuple & ori_tuple)]
           end
+      end
+
+      # @api private
+      def command
+        command_compiler.(command_type, relation, mapper: false).curry(to_h) if diff?
+      end
+
+      # @api private
+      def default_command_type
+        :update
       end
     end
   end
 end