0
我有两个型号Bill
& Order
, 我可以通过获得Orders
记录:雄辩的支点:如何做选择列Laravel 5.1
$orders = $bill->orders;
但我想用选择这样的:
$orders = $bill->orders->select([
'orders.*',
\DB::raw('sum(orders.quantity) as qty'),
\DB::raw('sum(orders.price) as total')
])
->groupBy('article_id');
我得到这个错误:
Method select does not exist.
请任何人都可以帮助我,谢谢!