baoshi-was/app/WaybillAuditLog.php

<?php

namespace App;

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

use App\Traits\LogModelChanging;

class WaybillAuditLog extends Model
{
    use LogModelChanging;

    use ModelTimeFormat;
    use SoftDeletes;
    protected $table='waybill_audit_logs';
    protected $fillable=[
        'waybill_id','audit_stage','user_id'
    ];

    public function waybill(){
        return $this->belongsTo('App\Waybill','waybill_id','id');
    }
    public function user(){
        return $this->belongsTo('App\User','user_id','id');
    }
}