refactor(mall): 优化优惠券相关操作的代码结构和逻辑

KKSU

2024-12-31 e440d24181806426634cad9e5688d906e175080d

refactor(mall): 优化优惠券相关操作的代码结构和逻辑

- 使用 LambdaQueryWrapper 替代 QueryWrapper，提高代码可读性
- 优化名称重复检查的错误提示信息
- 改进关联商品的查询和删除逻辑
- 增加对 goodsIds 为空的判断，提高代码健壮性

 src/main/java/cc/mrbird/febs/mall/service/impl/AdminMallGoodsService.java

@@ -852,11 +852,13 @@
    @Override
    public FebsResponse couponRuleAdd(CouponRuleAddDto couponRuleAddDto) {
        String name = couponRuleAddDto.getName();
        QueryWrapper<MallGoodsCoupon> objectQueryWrapper = new QueryWrapper<>();
        objectQueryWrapper.eq("name",name);
        List<MallGoodsCoupon> mallGoodsCoupons = mallGoodsCouponMapper.selectList(objectQueryWrapper);
        List<MallGoodsCoupon> mallGoodsCoupons = mallGoodsCouponMapper.selectList(
                new LambdaQueryWrapper<MallGoodsCoupon>()
                        .select(MallGoodsCoupon::getId)
                        .eq(MallGoodsCoupon::getName,name)
        );
        if(CollUtil.isNotEmpty(mallGoodsCoupons)){
            return new FebsResponse().fail().message("名称不能重复");
            return new FebsResponse().fail().message("优惠卷名称重复了");
        }

        MallGoodsCoupon mallGoodsCoupon = new MallGoodsCoupon();
@@ -868,16 +870,17 @@
        mallGoodsCouponMapper.insert(mallGoodsCoupon);

        Long couponId = mallGoodsCoupon.getId();
        QueryWrapper<CouponGoods> objectQueryWrapperCoupon = new QueryWrapper<>();
        objectQueryWrapperCoupon.eq("coupon_id",couponId);
        List<CouponGoods> couponGoodsList = couponGoodsMapper.selectList(objectQueryWrapperCoupon);
        if(CollUtil.isNotEmpty(couponGoodsList)){
            for(CouponGoods couponGoods : couponGoodsList){
                couponGoodsMapper.deleteById(couponGoods);
        // 先判断是否存在关联商品，再进行查询和删除
        if (CollUtil.isNotEmpty(couponGoodsMapper.selectList(
                new LambdaQueryWrapper<CouponGoods>()
                        .select(CouponGoods::getId)
                        .eq(CouponGoods::getCouponId, couponId)))) {
            couponGoodsMapper.delete(new LambdaQueryWrapper<CouponGoods>().eq(CouponGoods::getCouponId, couponId));
            }
        }
        if(CollUtil.isNotEmpty(couponRuleAddDto.getGoodsIds())){

        // 处理 goodsIds 为 null 或空的情况
            List<Long> goodsIds = couponRuleAddDto.getGoodsIds();
        if (CollUtil.isNotEmpty(goodsIds)) {
            for(Long goodsId : goodsIds){
                CouponGoods couponGoods = new CouponGoods();
                couponGoods.setGoodsId(goodsId);
@@ -951,16 +954,17 @@
        mallGoodsCouponMapper.updateById(mallGoodsCoupon);

        Long couponId = mallGoodsCoupon.getId();
        QueryWrapper<CouponGoods> objectQueryWrapperCoupon = new QueryWrapper<>();
        objectQueryWrapperCoupon.eq("coupon_id",couponId);
        List<CouponGoods> couponGoodsList = couponGoodsMapper.selectList(objectQueryWrapperCoupon);
        if(CollUtil.isNotEmpty(couponGoodsList)){
            for(CouponGoods couponGoods : couponGoodsList){
                couponGoodsMapper.deleteById(couponGoods);
        // 先判断是否存在关联商品，再进行查询和删除
        if (CollUtil.isNotEmpty(couponGoodsMapper.selectList(
                new LambdaQueryWrapper<CouponGoods>()
                        .select(CouponGoods::getId)
                        .eq(CouponGoods::getCouponId, couponId)))) {
            couponGoodsMapper.delete(new LambdaQueryWrapper<CouponGoods>().eq(CouponGoods::getCouponId, couponId));
            }
        }
        if(CollUtil.isNotEmpty(adminMallGoodsCouponVo.getGoodsIds())){

        // 处理 goodsIds 为 null 或空的情况
            List<Long> goodsIds = adminMallGoodsCouponVo.getGoodsIds();
        if (CollUtil.isNotEmpty(goodsIds)) {
            for(Long goodsId : goodsIds){
                CouponGoods couponGoods = new CouponGoods();
                couponGoods.setGoodsId(goodsId);