protected function _prepareFilesForDeletion(Model $model, $field, $data, $options = array())
 {
     if (!empty($this->settings[$model->alias][$field]['saveFullPath'])) {
         $fieldData = $data[$model->alias][$field];
         $dir = $model->__getFolderContainFile($fieldData);
         $data[$model->alias][$options['fields']['dir']] = $dir;
     }
     return parent::_prepareFilesForDeletion($model, $field, $data, $options);
 }