fix : place order coupon

app/Service/Api/Order/BaseOrderService.php

@@ -16,6 +16,7 @@ use App\Model\CouponTemplate;
 use App\Model\UserCoupon;
 use App\Service\Api\BaseService;
 use App\Service\ServiceTrait\Admin\Catering\PrintTrait;
+use App\Service\ServiceTrait\Api\CouponTrait;
 use App\Service\ServiceTrait\Api\OrderTrait;
 use App\Service\ServiceTrait\Common\CycleTrait;
 use Hyperf\Di\Annotation\Inject;
@@ -24,7 +25,7 @@ use Psr\Container\NotFoundExceptionInterface;
 
 abstract class BaseOrderService extends BaseService
 {
-    use CycleTrait,OrderTrait,PrintTrait;
+    use CycleTrait,OrderTrait,PrintTrait,CouponTrait;
 
     /**
      * @var int 周期id
@@ -100,7 +101,7 @@ abstract class BaseOrderService extends BaseService
      * 优惠券id
      * @var int
      */
-    protected int $couponId;
+    protected int $couponId = 0;
 
     /**
      * 地点id