query condition on "with" relation not work

[sepisoltani]

I have a Order Model which has belongsTo relation to Factor model

use Jenssegers\Mongodb\Eloquent\Model;

class Order extends Model
{
  public function factor()
    {

        return $this->belongsTo(Factor::class, 'factor_id');
    }
}

I want to load orders which only their factor status is 'payed'.
I run this query but it loads all orders.

  $res =  Order::with(['factor' => function ($query) {
            $query->where('status', '=',"payed");
        }])->get()

if I change the "with" , to "whereHas" it works.
why "with" doesn't work ?

[jaypalchauhan89]

With-> only relations records will be filtered. WhereHas will filter main table's record.