'json', ]; protected $fillable = [ 'store_id', 'staff_id', 'payload', 'qrcode', 'remark', 'user_id', 'coupon_id' ]; public function store() { return $this->belongsTo(Store::class); } public function coupon() { return $this->belongsTo(UserCoupon::class); } public function order() { return $this->morphOne(OfflineOrder::class, 'orderable')->orderBy('created_at', 'desc'); } public function orders() { return $this->morphMany(OfflineOrder::class, 'orderable')->orderBy('created_at', 'desc'); } }