baoshi-was/app/Order.php

<?php

namespace App;

use App\Traits\ModelTimeFormat;
use Illuminate\Database\Eloquent\Model;

class Order extends Model
{
    //
    use ModelTimeFormat;

    protected $fillable = ['created_at','code','shop_id','owner_id','logistic_number','logistic_id','consignee_name','consignee_phone','province','city','district','address','wms_status'];

    protected $appends = [
        'creator',
    ];

    public function logistic(){
        return $this->belongsTo('App/logistic','logistic_id','id');
    }

    public function orderIssue(){
        return $this->hasOne('App/OrderIssue','order_id','id');
    }

    public function shop(){
        return $this->belongsTo('App/Shop','shop_id','id');
    }

    public function orderOnTop(){
        return $this->hasOne('App/OrderOnTop','order_id','id');
    }

    public function setCreatorAttribute ($id,$user_id){
        Sign::updateOrCreate(['signable_type'=>'orders','signable_id'=>$id,'field'=>'creator','mark'=>$user_id]);
    }

    public function getCreatorAttribute(){
       return  $this->hasOne('App\Sign','signable_id','id')
            ->where('signable_type','orders')
            ->where('field','creator')
            ->value('mark');
    }

}