public function express($express_name, $express_no, $transaction = TRUE)
{
$transaction && DB::beginTransaction();
$order = static::where($this->getKeyName(), $this->getKey())->lockForUpdate()->first();
if ($order->status != static::PAID) {
$transaction && DB::rollback();
return false;
}
$express = OrderExpress::where($this->getKeyName(), $this->getKey())->lockForUpdate()->first();
$express->update(['express_name' => $express_name, 'no' => $express_no]);
$order->status = static::DELIVERED;
$order->save();
$transaction && DB::commit();
return true;
}
