Laravel选择数据库原始组

Question

我想在laravel中显示此查询：

SELECT products.*, (

SELECT COUNT(*)
FROM category
WHERE category.product_id = products.id
AND category.date_creation BETWEEN '2018-02-16 00:00:00' AND '2018-02-19 23:59:59' 
GROUP BY product_id
)nbr
FROM products 

我尝试与此：

    $a= $date_du;
    $b = $date_au;
    $products = DB::table('products')                                    
    ->leftjoin('category','category.product_id','=','products.id')
    ->select('products.*',
       DB::raw("(SELECT COUNT(*)  FROM category 
       WHERE category.product_id = products.id AND category.date_creation >= '$a' AND category.date_creation <= '$b' group by product_id) as nbr"))                                     
    ->get();

但是子句分组依据不起作用。

Answer 1

试试这个

$products = DB::table('products')
            ->leftjoin('category','category.product_id','=','products.id')
            ->whereBetween('date_creation',[$a,$b])
            ->select(DB::raw('COUNT(*) as nbr'), 'products.*')
            ->groupBy('id')
            ->get();

这可能对您有用。

Answer 2

您也可以这样做：

$products=DB::select("SELECT products.*, ( SELECT COUNT(*) FROM category WHERE category.product_id = products.id AND category.date_creation BETWEEN '2018-02-16 00:00:00' AND '2018-02-19 23:59:59' GROUP BY product_id )nbr FROM products" );

这将运行原始查询并返回所需的输出。