我在模型Users中有一个方法

    public function getRating()
    {
        $id = \Yii::$app->request->get('id');
        $rating = Yii::$app->db->createCommand(
            "SELECT * FROM (
            SELECT *, (@position:=@position+1) as rate FROM (
                SELECT executor_id, SUM(rate) / COUNT(rate) as pts                                                            FROM user_replies, (SELECT @position:=0) as a                                  
                GROUP BY executor_id ORDER BY pts DESC
                ) AS subselect
           ) as general WHERE  executor_id = $id"
        )->queryOne();

        return $rating;
    }

并且我在视图中输出结果如下

getRating()['rate']; ?>

但是更有经验的开发者告诉我，我的查询会执行两次。有可能重写代码以使其只执行一次吗？