如何在eloquent中传递子查询中的父列值

Question

如何在$ query中传递_user_id列值.这是很多关系.我无法弄清楚如何在$ query where条件中使用RFX的user_id.

public function response_pricings(){
    return $this->hasMany('App\Models\Website\RFXRequestPricingResponse', ['rfx_request_id'=>'_rfx_request_id', 'user_id'=>'_user_id'])->selectRaw("*");
}

return RFXRequestSupplierResponded::select(
    'id as _id',
    'rfx_request_id as _rfx_request_id',
    'user_id as _user_id',
    'status',
    'is_qualified',
    DB::RAW('(SELECT name FROM users WHERE id=user_id) as user_name'),
    DB::RAW('(SELECT note FROM rfx_request_response_notes WHERE rfx_request_id='.$rfx_request_id.' AND user_id=rfx_request_suppliers_responded.user_id LIMIT 1) as note')
)
->with(
    [
        'response_pricings' => function ($query) {
            /*$query->where('user_id', $_user_id);*/
        }
    ]
)
->where('rfx_request_id',$rfx_request_id)
->get();

Answer 1

您可以使用以下方法将局部作用域参数传递给闭包函数use

... ->with(
        ['response_pricings' => function ($query) use ($_user_id) {
            $query->where('user_id', $_user_id);
         }
        ]
      )
      ->where(....

更多信息请参见此问答：In PHP 5.3.0, What is the function "use" identifier?