Laravel 5.1 use limit in with() method of eloquent

问题

Eloquent

$staffGroup = StaffGroup::where('id', $id)
            ->with('staffGroupRight')
            ->first();

In StaffGroup Model:

public function staffGroupRight() {
    return $this->hasMany('Modules\Staff\Http\Models\StaffGroupRight');
}

what i have does is,

public function staffGroupRight() {
    return $this->hasMany('Modules\Staff\Http\Models\StaffGroupRight')->take(5);
}

but it gives total 5 rows for all staff_group but i want it to limit for one staff_group

For example

There are 10 staff_group then it gives 5 records of staffgrouprights for that 10 staff_group but i want it 5 for single staff_group

here with staffGroupRight return data appropriate to id of staff group.

but i want to set limit in that with() method data.

is it possible to set limit in with() method or not...??

回答1:

$staffGroup = StaffGroup::where('id', $id)
        ->with(['staffGroupRight' => function($query){
            return $query->take(10);
            }])
        ->first();

I assume you want to take 10 record of staffGroupRight.

来源：https://stackoverflow.com/questions/34082082/laravel-5-1-use-limit-in-with-method-of-eloquent