限时放漏限购

ch-wx-api/src/main/java/com/wwdz/ch/wx/impl/distribution/DistributionOrderServiceImpl.java

@@ -404,6 +404,19 @@ public class DistributionOrderServiceImpl implements DistributionOrderService {
             if (dto.getItemNum() > stock) {
                 return Result.failed("超出库存");
             }
+            //商品限购数量
+            int buyLimitNum = supplierItem.getBuyLimitNum() == -1 ? 9999999 : supplierItem.getBuyLimitNum();
+            //检查该购买者是否超出限购数量
+            //1.查询购买者对该商品的历史购买记录
+            List<DistributionOrder> distributionOrders = distributionOrderDao.findValidOrderOfItemIdByBuyerId(dto.getBuyerId(), itemId);
+            int buyNum = 0;
+            if (!CollectionUtils.isEmpty(distributionOrders)) {
+                buyNum = distributionOrders.stream().mapToInt(DistributionOrder::getItemNum).sum();
+            }
+            if (buyNum + dto.getItemNum() > buyLimitNum) {
+                return Result.failed("超出购买上限" + buyLimitNum + "件");
+            }
+
             String distributionOrderId = IdUtils.getOrderNumber(DISTRIBUTION_ORDER_PREFIX);
             DistributionOrderRequestDto prePayDto = new DistributionOrderRequestDto();
             prePayDto.setDistributionOrderId(distributionOrderId);