我有两个模型，Locale和Delivery。
Shipment可以与Deliveries：Shipment和OutboundShipment建立两种截然不同的一对一关系。
以下是我如何定义这些关系：
InboundShipment创建class Delivery extends Model
{
public function outboundShipment() {
return $this->hasOne('App\Shipment', 'delivery_id', 'outbound_shipment_id');
}
public function inboundShipment() {
return $this->hasOne('App\Shipment', 'delivery_id', 'inbound_shipment_id');
}
public function addRelatedShipments() {
$newOutboundShipment = new Shipment();
$newOutboundShipment->status = 'Delivery Outbound';
$newOutboundShipment->save();
$this->outboundShipment()->save($newOutboundShipment);
$newInboundShipment = new Shipment();
$newInboundShipment->status = 'Inbound';
$newInboundShipment->save();
$this->inboundShipment()->save($newInboundShipment);
}
}
class Shipment extends Model
{
public function delivery() {
return $this->hasOne('App\Delivery');
}
}
对象并保存后，我致电Delivery。
一方面，这很好用 - 如果我致电addRelatedShipments()，我会收到送货清单，每件送货都有$deliveries = Delivery::with('outboundShipment')->with('inboundShipment')->get();和outbound_shipment作为模型的属性。
但是，当我尝试将货件包含在货件中时，这不起作用。如果我拨打inbound_shipment，我会收到所有货件，两个字段为空：$shipments = Shipment::with('delivery')->get();和delivery_id。
知道我在这里做错了吗？我假设至少，delivery字段不应该为空。如上所述，我在致电delivery_id之前会在save()模型上致电Delivery。
答案 0 :(得分：0)
由于您的货件包含delivery_id，因此必须将交货模型的关系定义为BelongsTo。将您的关系更新为：
class Shipment extends Model
{
public function delivery() {
return $this->belongsTo('App\Delivery');
}
}