paascloud/paascloud-master · error · OmcBizException

OMC10031006

OMC10031006

Error message

OMC10031006

What it means

ErrorCodeEnum.OMC10031006 ('failed to clean cart', 清空购物车失败) is thrown by cleanCart when batchDeleteCart deletes fewer rows than the number of cart item ids collected from the user's cart. It signals a partial or failed delete during order creation, leaving stale cart items behind.

Solutions

  1. Make the delete idempotent: treat already-deleted rows as success, e.g. compare against rows that actually existed (SELECT ... FOR UPDATE before delete) or remove the strict count check
  2. Retry the order creation transaction; on retry the cart list will be empty and creation should proceed
  3. Check omc_cart for triggers/soft-delete flags that could reduce the affected-row count

Example fix

// before
int deleteCount = omcCartMapper.batchDeleteCart(idList);
if (deleteCount < idList.size()) {
    throw new OmcBizException(ErrorCodeEnum.OMC10031006);
}
// after
omcCartMapper.batchDeleteCart(idList); // idempotent delete; tolerate already-removed rows
Defensive patterns

Strategy: try-catch

Validate before calling

List<Long> existingIds = cartList.stream().map(OmcCart::getId).collect(Collectors.toList());
int deleteCount = omcCartMapper.batchDeleteCart(existingIds);
// treat deleteCount < existingIds.size() as warning, not failure

Try / catch

try {
    orderService.createOrder(...); // internally calls cleanCart
} catch (OmcBizException e) {
    if (e.getCode() == 10031006) { retryOrderCreation(); }
    else throw e;
}

Prevention

When it happens

Trigger: During createOrderDoc: omcCartMapper.batchDeleteCart(idList) returns a count < idList.size(), e.g. because a cart row was concurrently deleted by another request, a row was already removed, or the DB delete hit a constraint/error swallowed by the mapper.

Common situations: Double-submitting an order so the second transaction finds cart rows already deleted; concurrent sessions on the same account; replication/tx isolation issues in the cart table.

Related errors

AI-assisted analysis of paascloud/paascloud-master@781281a950 (2026-09-10). Data as JSON: /api/errors/6b934f05fe2013b7. Report an issue: GitHub.

Appendix: source

Thrown at paascloud-provider/paascloud-provider-omc/src/main/java/com/paascloud/provider/service/impl/OmcOrderServiceImpl.java:311

		return orderItemVo;
	}

	private void reduceProductStock(List<OmcOrderDetail> omcOrderDetailList) {
		for (OmcOrderDetail orderItem : omcOrderDetailList) {
			ProductDto product = mdcProductService.selectById(orderItem.getProductId());
			product.setChangeStock(0 - orderItem.getQuantity());
			mdcProductService.updateProductStockById(product);
		}
	}

	private void cleanCart(List<OmcCart> cartList) {
		List<Long> idList = Lists.newArrayList();
		for (OmcCart cart : cartList) {
			idList.add(cart.getId());
		}
		int deleteCount = omcCartMapper.batchDeleteCart(idList);
		if (deleteCount < idList.size()) {
			throw new OmcBizException(ErrorCodeEnum.OMC10031006);
		}
	}

	private List<OrderVo> assembleOrderVoList(List<OmcOrder> orderList, Long userId) {
		List<OrderVo> orderVoList = Lists.newArrayList();
		for (OmcOrder order : orderList) {
			List<OmcOrderDetail> orderItemList;
			if (userId == null) {
				orderItemList = omcOrderDetailService.getListByOrderNo(order.getOrderNo());
			} else {
				orderItemList = omcOrderDetailService.getListByOrderNoUserId(order.getOrderNo(), userId);
			}
			OrderVo orderVo = assembleOrderVo(order, orderItemList);
			orderVoList.add(orderVo);
		}
		return orderVoList;
	}

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