Client::rules PHP Method

    public function rules()
    {
        return CMap::mergeArray(parent::rules(), [['middle_name, first_name, last_name, nick_name, email, gender, status, access_level, visit_time, phone, ordersTotalNumber, ordersTotalSum', 'filter', 'filter' => 'trim', 'on' => 'search'], ['middle_name, first_name, last_name, nick_name, email, gender, status, access_level, visit_time, phone, ordersTotalNumber, ordersTotalSum', 'safe', 'on' => 'search']]);
    }