Laravel错误 仅在部署时尝试获取非对象的属性"date"

Question

我有一个属于Shipment Model的Package Model。我这样设置关系

class Package extends Model
{
public function shipment(){
return $this->belongsTo(Shipment::class,'shipment_id','id');
}
}

一切都在localhost中正常工作，但是当我将其部署到heroku时，它向我显示错误

Trying to get property 'date' of non-object
ErrorException
in /app/app/Http/Resources/Package.php (line 19)
'shipment_date'=> $this->shipment->date

Answer 1

你可以试试这个

$this->shipment['date']