From 960668787845afeebabf97378ea0835a08d0225f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=8D=A2=E8=B6=8A?= <552369664@qq.com>
Date: Thu, 8 Aug 2024 15:17:35 +0800
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---
 .../module/promotion/dal/dataobject/coupon/CouponDO.java     | 2 ++
 .../module/promotion/service/coupon/CouponServiceImpl.java   | 5 ++++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/dal/dataobject/coupon/CouponDO.java b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/dal/dataobject/coupon/CouponDO.java
index 31cef2e78..296d2a2fd 100644
--- a/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/dal/dataobject/coupon/CouponDO.java
+++ b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/dal/dataobject/coupon/CouponDO.java
@@ -8,6 +8,7 @@ import cn.iocoder.yudao.module.promotion.enums.coupon.CouponStatusEnum;
 import cn.iocoder.yudao.module.promotion.enums.coupon.CouponTakeTypeEnum;
 import com.baomidou.mybatisplus.annotation.KeySequence;
 import com.baomidou.mybatisplus.annotation.TableField;
+import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 import lombok.Data;
 import lombok.EqualsAndHashCode;
@@ -30,6 +31,7 @@ public class CouponDO extends BaseDO {
     /**
      * 优惠劵编号
      */
+    @TableId
     private Long id;
     /**
      * 优惠劵模板编号
diff --git a/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/service/coupon/CouponServiceImpl.java b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/service/coupon/CouponServiceImpl.java
index 82402d3f4..6b1b0b64d 100644
--- a/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/service/coupon/CouponServiceImpl.java
+++ b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/service/coupon/CouponServiceImpl.java
@@ -25,6 +25,7 @@ import org.springframework.transaction.annotation.Transactional;
 import org.springframework.validation.annotation.Validated;
 
 import jakarta.annotation.Resource;
+
 import java.time.LocalDateTime;
 import java.util.*;
 import java.util.stream.Collectors;
@@ -134,6 +135,8 @@ public class CouponServiceImpl implements CouponService {
         // 校验存在
         validateCouponExists(id);
 
+        // 查询优惠券信息
+        CouponDO couponDO = couponMapper.selectById(id);
         // 更新优惠劵
         int deleteCount = couponMapper.delete(id,
                 asList(CouponStatusEnum.UNUSED.getStatus(), CouponStatusEnum.EXPIRE.getStatus()));
@@ -141,7 +144,7 @@ public class CouponServiceImpl implements CouponService {
             throw exception(COUPON_DELETE_FAIL_USED);
         }
         // 传入优惠券模板ID，减少优惠劵模板的领取数量 -1
-        couponTemplateService.updateCouponTemplateTakeCount(couponMapper.selectById(id).getTemplateId(), -1);
+        couponTemplateService.updateCouponTemplateTakeCount(couponDO.getTemplateId(), -1);
     }
 
     @Override