/**
* @return array validation rules for model attributes.
*/
public function rules()
{
return array_merge(parent::rules(), array(array('id, message_id, user_id, read,notified,owner, from_user_id, topic, message, conversation_id, message_type, message_status,from, to,date_created,' . self::SEARCH_FIELD, 'safe', 'on' => self::SCENARIO_SEARCH)));
}
