lib/carrierwave/orm/mongoid.rb in locomotive_carrierwave-0.5.4.beta1 vs lib/carrierwave/orm/mongoid.rb in locomotive_carrierwave-0.5.4.beta2

@@ -46,9 +46,18 @@
 
         def #{column}_changed?
           column = _mounter(:#{column}).serialization_column
           send(:"\#{column}_changed?")
         end
+
+        def find_previous_model_for_#{column}
+          if self.embedded?
+            self._parent.reload.send(self.metadata.key).find(to_key.first)
+          else
+            self.class.find(to_key.first)
+          end
+        end
+
       RUBY
 
     end
   end # Mongoid
 end # CarrierWave