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MALL: fix 订单价格分摊

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This commit is contained in:
puhui999 2024-03-10 19:07:24 +08:00
parent d556b29214
commit 0dd36f6c5c
2 changed files with 10 additions and 5 deletions
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8
yudao-module-mall/yudao-module-trade-biz/src/main/java/cn/iocoder/yudao/module/trade/service/order/TradeOrderUpdateServiceImpl.java
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@ -624,7 +624,7 @@ public class TradeOrderUpdateServiceImpl implements TradeOrderUpdateService {
throw exception(ORDER_UPDATE_PRICE_FAIL_ALREADY);
}
// 1.3 支付价格不能为 0
int newPayPrice = order.getPayPrice() + order.getAdjustPrice();
int newPayPrice = order.getPayPrice() + reqVO.getAdjustPrice();
if (newPayPrice <= 0) {
throw exception(ORDER_UPDATE_PRICE_FAIL_PRICE_ERROR);
}
@ -635,12 +635,14 @@ public class TradeOrderUpdateServiceImpl implements TradeOrderUpdateService {
// 3. 更新 TradeOrderItem，需要做 adjustPrice 的分摊
List<TradeOrderItemDO> orderOrderItems = tradeOrderItemMapper.selectListByOrderId(order.getId());
List<Integer> dividePrices = TradePriceCalculatorHelper.dividePrice2(orderOrderItems, newPayPrice);
List<Integer> dividePrices = TradePriceCalculatorHelper.dividePrice2(orderOrderItems, reqVO.getAdjustPrice());
List<TradeOrderItemDO> updateItems = new ArrayList<>();
for (int i = 0; i < orderOrderItems.size(); i++) {
TradeOrderItemDO item = orderOrderItems.get(i);
// TODO puhui999: 已有分摊记录的情况下价格是否会不对，也就是说之前订单项 1 分摊了 10 块这次是 -100
// 那么 setPayPrice 是否改为 (item.getPayPrice()-item.getAdjustPrice()) + dividePrices.get(i) 先减掉原来的价格再加上调价。经过验证可行，修改后订单价格增减都能正确分摊
updateItems.add(new TradeOrderItemDO().setId(item.getId()).setAdjustPrice(dividePrices.get(i))
.setPayPrice(item.getPayPrice() + dividePrices.get(i)));
.setPayPrice((item.getPayPrice() - item.getAdjustPrice()) + dividePrices.get(i)));
}
tradeOrderItemMapper.updateBatch(updateItems);

7
yudao-module-mall/yudao-module-trade-biz/src/main/java/cn/iocoder/yudao/module/trade/service/price/calculator/TradePriceCalculatorHelper.java
View File

@ -254,12 +254,15 @@ public class TradePriceCalculatorHelper {
TradeOrderItemDO orderItem = items.get(i);
int partPrice;
if (i < items.size() - 1) { // 减一的原因，是因为拆分时，如果按照比例，可能会出现.所以最后一个，使用反减
partPrice = (int) (price * (1.0D * orderItem.getPayPrice() / total));
// partPrice = (int) (price * (1.0D * orderItem.getPayPrice() / total));
// pr fix: 改为了使用订单原价来计算比例
partPrice = (int) (price * (1.0D * orderItem.getPrice() / total));
remainPrice -= partPrice;
} else {
partPrice = remainPrice;
}
Assert.isTrue(partPrice >= 0, "分摊金额必须大于等于 0");
// TODO puhui999: 如果是减价的情况这里过不了
// Assert.isTrue(partPrice >= 0, "分摊金额必须大于等于 0");
prices.add(partPrice);
}
return prices;