protected function doUpdateObject($values)
 {
     if (isset($values['file']) && $values['file'] instanceof sfValidatedFile) {
         $validatedFile = $values['file'];
     } else {
         $validatedFile = null;
     }
     unset($values['file']);
     if ($this->object->exists() && $values['dm_media_folder_id'] != $this->object->dm_media_folder_id) {
         $moveToFolderId = $values['dm_media_folder_id'];
         $values['dm_media_folder_id'] = $this->object->dm_media_folder_id;
     }
     parent::doUpdateObject($values);
     if ($validatedFile) {
         $values = $this->handleValidatedFile($validatedFile, $values);
     }
     if (isset($moveToFolderId)) {
         $this->object->move(dmDb::table('DmMediaFolder')->find($moveToFolderId));
     }
 }