package com.ruoyi.promotion.service.impl;
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import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
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import com.ruoyi.promotion.mapper.PromotionWishRecommendMapper;
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import com.ruoyi.promotion.service.IPromotionWishRecommendService;
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import com.ruoyi.system.api.domain.PromotionWishRecommend;
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import org.springframework.stereotype.Service;
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/**
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* <p>
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* 心愿求购平台推荐商品 服务实现类
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* </p>
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*
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* @author mitao
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* @since 2024-10-29
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*/
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@Service
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public class PromotionWishRecommendServiceImpl extends
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ServiceImpl<PromotionWishRecommendMapper, PromotionWishRecommend> implements
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IPromotionWishRecommendService {
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/**
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* 扣减推荐商品库存
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* @param goodsQuantity
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* @param id
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* @return
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*/
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@Override
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public Integer subRecommendAvailableNum(Integer goodsQuantity, Long id) {
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return baseMapper.subRecommendAvailableNum(goodsQuantity, id);
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}
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/**
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* 恢复荐商品可购数量
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* @param goodsQuantity
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* @param id
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* @return
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*/
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@Override
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public void addRecommendAvailableNum(Integer goodsQuantity, Long id) {
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this.lambdaUpdate()
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.setSql("available_num = available_num +" + goodsQuantity)
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.eq(PromotionWishRecommend::getId, id).update();
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}
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}
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