common\models\Order::tableName PHP Méthode

    public static function tableName()
    {
        return '{{%order}}';
    }

 /**
  * 获取用户某个时间段购买某个商品的数量
  * 
  * @param string $goodsId
  * @param string $timeStart
  * @param string $timeEnd
  * @return integer
  */
 public function getOrderGoodsCount($goodsId, $timeStart = null, $timeEnd = null)
 {
     $sql = 'SELECT sum(t0.count) FROM ' . OrderGoods::tableName() . ' AS t0 LEFT JOIN ' . Order::tableName() . ' AS t1 ON t0.order_id = t1.id WHERE t1.user_id=:user_id AND t0.goods_id=:goods_id';
     $params = [':user_id' => $this->id, ':goods_id' => $goodsId];
     if ($timeStart !== null) {
         $sql .= ' AND t1.created_at >= :time_start';
         $params[':time_start'] = $timeStart;
     }
     if ($timeEnd !== null) {
         $sql .= ' AND t1.created_at < :time_end';
         $params[':time_end'] = $timeEnd;
     }
     $count = Yii::$app->db->createCommand($sql, $params)->queryScalar();
     return (int) $count;
 }