trade：订单表，增加 vip 优惠字段
YunaiV
2 years ago
parent
aa5525d1f5
commit
53e789dfdc
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package cn.iocoder.yudao.module.trade.service.price.calculator;
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import cn.iocoder.yudao.module.member.api.level.MemberLevelApi;
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import cn.iocoder.yudao.module.member.api.level.dto.MemberLevelRespDTO;
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import cn.iocoder.yudao.module.member.api.user.MemberUserApi;
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import cn.iocoder.yudao.module.member.api.user.dto.MemberUserRespDTO;
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import cn.iocoder.yudao.module.promotion.enums.common.PromotionTypeEnum;
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import cn.iocoder.yudao.module.trade.service.price.bo.TradePriceCalculateReqBO;
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import cn.iocoder.yudao.module.trade.service.price.bo.TradePriceCalculateRespBO;
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import org.springframework.core.annotation.Order;
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import org.springframework.stereotype.Component;
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import javax.annotation.Resource;
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import static cn.iocoder.yudao.module.trade.service.price.calculator.TradePriceCalculatorHelper.formatPrice;
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/**
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* 会员 VIP 折扣的 {@link TradePriceCalculator} 实现类
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*
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* @author 芋道源码
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*/
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@Component
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@Order(TradePriceCalculator.ORDER_MEMBER_LEVEL)
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public class TradeMemberLevelPriceCalculator implements TradePriceCalculator {
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@Resource
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private MemberLevelApi memberLevelApi;
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@Resource
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private MemberUserApi memberUserApi;
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@Override
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public void calculate(TradePriceCalculateReqBO param, TradePriceCalculateRespBO result) {
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// 1. 获得用户的会员等级
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MemberUserRespDTO user = memberUserApi.getUser(param.getUserId());
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if (user.getLevelId() == null || user.getLevelId() <= 0) {
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return;
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}
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MemberLevelRespDTO level = memberLevelApi.getMemberLevel(user.getLevelId());
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if (level == null || level.getDiscountPercent() == null) {
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return;
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}
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// 2. 计算每个 SKU 的优惠金额
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result.getItems().forEach(orderItem -> {
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// 2.1 计算优惠金额
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Integer vipPrice = calculateVipPrice(orderItem.getPayPrice(), level.getDiscountPercent());
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if (vipPrice <= 0) {
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return;
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}
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// 2.2 记录优惠明细
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if (orderItem.getSelected()) {
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// 注意，只有在选中的情况下，才会记录到优惠明细。否则仅仅是更新 SKU 优惠金额，用于展示
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TradePriceCalculatorHelper.addPromotion(result, orderItem,
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level.getId(), level.getName(), PromotionTypeEnum.MEMBER_LEVEL.getType(),
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String.format("会员等级折扣：省 %s 元", formatPrice(vipPrice)),
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vipPrice);
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}
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// 2.3 更新 SKU 的优惠金额
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orderItem.setVipPrice(vipPrice);
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TradePriceCalculatorHelper.recountPayPrice(orderItem);
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});
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TradePriceCalculatorHelper.recountAllPrice(result);
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}
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/**
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* 计算会员 VIP 优惠价格
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*
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* @param price 原价
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* @param discountPercent 折扣
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* @return 优惠价格
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*/
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public Integer calculateVipPrice(Integer price, Integer discountPercent) {
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if (discountPercent == null) {
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return 0;
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}
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Integer newPrice = price * discountPercent / 100;
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return price - newPrice;
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}
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}
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@ -0,0 +1,41 @@
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package cn.iocoder.yudao.module.member.api.level.dto;
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import cn.iocoder.yudao.framework.common.enums.CommonStatusEnum;
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import lombok.Data;
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/**
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* 会员等级 Resp DTO
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*
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* @author 芋道源码
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*/
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@Data
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public class MemberLevelRespDTO {
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/**
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* 编号
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*/
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private Long id;
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/**
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* 等级名称
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*/
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private String name;
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/**
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* 等级
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*/
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private Integer level;
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/**
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* 升级经验
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*/
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private Integer experience;
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/**
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* 享受折扣
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*/
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private Integer discountPercent;
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/**
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* 状态
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*
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* 枚举 {@link CommonStatusEnum}
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*/
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private Integer status;
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}
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