Question

这是我的代码：

    $qb = $this->_em
        ->createQueryBuilder();
    $query = $qb->select('COUNT(food) as cnt')
        ->from(Food::class, 'food')
        ->groupBy('cnt')
        ->getQuery()->getSQL();

但是我的期望类似于以下查询：

SELECT COUNT(f0_.food_id) AS sclr_0 FROM foods f0_ WHERE (f0_.deleted_at IS NULL) GROUP BY sclr_0

结果如下：

SELECT COUNT(f0_.food_id) AS sclr_0 FROM foods f0_ WHERE (f0_.deleted_at IS NULL) GROUP BY f0_.food_id

有什么建议吗？

Answer 1

在此处查看重定向： Laravel Group By Count Multiple Columns

$products_data = DB::table("products")
->select("products.id", "products.name", DB::raw("COUNT(click.*) as count_click"))
->join("click","click.product_id","=","products.id")
->groupBy("products.id")
->get();

print_r($products_data);

也尝试此代码

 $this->select(\DB::raw("*, count(*) as total"))
->where('viewed', "0")
->groupBy(["chat_id", "type"]);

Answer 2

您将需要将查询用作子查询，请在原始SQL中执行此操作，但是您可以从以下方法中获得灵感：

$qb = $this->_em
    ->createQueryBuilder();
$query = $qb->select('COUNT(food) as cnt')
    ->from(Food::class, 'food')
    ->groupBy('cnt')
    ->getQuery()->getSQL();


$qb2 = $this->_em
    ->createQueryBuilder();
$query2 = $qb->select('sclr_0')
    ->from('('.$query.')', 'cnt')
    ->groupBy('sclr_0 ')
    ->getQuery()->getSQL();

学说-按计数分组

2 个答案: