public static function getCategoryChildrens($id, $order = "sort ASC")
 {
     $rows = (new \yii\db\Query())->select(["act.*", "ac.*"])->from(ArtCategories::tableName() . " ac")->leftJoin(self::tableName() . " act", "act.cat_parent_id = ac.id")->where(["act.cat_child_id" => $id])->orderBy($order)->createCommand()->getRawSql();
     //->all();
     return $rows;
 }