bug修改

@@ -39,7 +39,8 @@ class Order extends Model
 
     // 抢单倒计时
     public function getGrabCountdownAttr($value,$data){
-        $grab_countdown = config('countdown.grab') - (time() - $data['pay_time']);
+        $pay_time = is_string($data['pay_time']) ? strtotime($data['pay_time']) : $data['pay_time'];
+        $grab_countdown = config('countdown.grab') - (time() - $pay_time);
         $grab_countdown = $grab_countdown > 0 ? $grab_countdown : 0;
         return [
             'minute' => floor($grab_countdown / 60),