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优惠券 管理端重写 使用的地方 注释

cash-service/market-service/src/main/java/com/czg/service/market/mapper/ShopCouponMapper.java

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+package com.czg.service.market.mapper;
+
+
+import com.czg.market.entity.ShopCoupon;
+import com.mybatisflex.core.BaseMapper;
+
+/**
+ * 优惠券信息表 映射层。
+ *
+ * @author ww
+ * @since 2025-09-11
+ */
+public interface ShopCouponMapper extends BaseMapper<ShopCoupon> {
+
+}

cash-service/market-service/src/main/java/com/czg/service/market/service/impl/ShopCouponServiceImpl.java

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+package com.czg.service.market.service.impl;
+
+import cn.hutool.core.bean.BeanUtil;
+import cn.hutool.core.exceptions.ValidateException;
+import com.czg.market.dto.ShopCouponDTO;
+import com.czg.market.entity.ShopCoupon;
+import com.czg.market.service.ShopCouponService;
+import com.czg.service.market.mapper.ShopCouponMapper;
+import com.czg.utils.AssertUtil;
+import com.czg.utils.PageUtil;
+import com.mybatisflex.core.paginate.Page;
+import com.mybatisflex.core.query.QueryWrapper;
+import com.mybatisflex.spring.service.impl.ServiceImpl;
+import org.apache.dubbo.config.annotation.DubboService;
+import org.springframework.stereotype.Service;
+
+/**
+ * 优惠券信息表 服务层实现。
+ *
+ * @author ww
+ * @since 2025-09-11
+ */
+@DubboService
+public class ShopCouponServiceImpl extends ServiceImpl<ShopCouponMapper, ShopCoupon> implements ShopCouponService{
+
+    @Override
+    public Page<ShopCouponDTO> getCouponPage(ShopCouponDTO param) {
+        QueryWrapper queryWrapper = PageUtil.buildSortQueryWrapper();
+        queryWrapper.eq(ShopCoupon::getShopId, param.getShopId())
+                .eq(ShopCoupon::getCouponType, param.getCouponType())
+                .orderBy(ShopCoupon::getCreateTime).desc();
+        return pageAs(PageUtil.buildPage(), queryWrapper, ShopCouponDTO.class);
+    }
+
+    @Override
+    public ShopCouponDTO getCouponById(Long id) {
+        AssertUtil.isNull(id, "优惠券ID不能为空");
+        return getOneAs(new QueryWrapper().eq(ShopCoupon::getId, id), ShopCouponDTO.class);
+    }
+
+    @Override
+    public void addCoupon(ShopCouponDTO param) {
+        ShopCoupon coupon = BeanUtil.toBean(param, ShopCoupon.class);
+        save(coupon);
+    }
+
+    @Override
+    public void updateCouponById(ShopCouponDTO param) {
+        if (param.getGiveNum() != null && param.getGiveNum() != -10086) {
+            ShopCoupon tbShopCoupon = getById(param.getId());
+            if (param.getGiveNum() < tbShopCoupon.getGiveNum()) {
+                throw new ValidateException("修改失败 发放数量不可减少");
+            } else {
+                param.setLeftNum(tbShopCoupon.getLeftNum() + tbShopCoupon.getGiveNum() - param.getGiveNum());
+            }
+        }
+        ShopCoupon coupon = BeanUtil.toBean(param, ShopCoupon.class);
+        updateById(coupon,true);
+    }
+
+    @Override
+    public void deleteCoupon(Long id) {
+        AssertUtil.isNull(id, "优惠券ID不能为空");
+        removeById(id);
+    }
+}

cash-service/market-service/src/main/resources/mapper/ShopCouponMapper.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE mapper
+        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
+        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="com.czg.service.market.mapper.ShopCouponMapper">
+
+</mapper>