fix: pickUp 接口更新客户订单金额方式改为直接设置 orderAmount

- CustomerOrderApi 新增 updateOrderAmount 方法
- ErpSaleOrderServiceImpl.updatePickUp 调用 updateOrderAmount 而非 updateActualAmount

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

foodnexus-module-erp/src/main/java/cn/iocoder/foodnexus/module/erp/service/sale/ErpSaleOrderServiceImpl.java

@@ -433,13 +433,8 @@ public class ErpSaleOrderServiceImpl implements ErpSaleOrderService {
             int newOrderAmount = allCustomerOrderItems.stream()
             int newOrderAmount = allCustomerOrderItems.stream()
                     .mapToInt(item -> item.getOrderItemTotal() != null ? item.getOrderItemTotal() : 0)
                     .mapToInt(item -> item.getOrderItemTotal() != null ? item.getOrderItemTotal() : 0)
                     .sum();
                     .sum();
-            // 通过差值方式更新 orderAmount：先查出旧值，计算差值
-            CustomerOrderDTO customerOrder = customerOrderApi.queryById(saleOrder.getCustomerOrderId());
-            int oldOrderAmount = customerOrder.getOrderAmount() != null ? customerOrder.getOrderAmount() : 0;
-            int diffAmount = newOrderAmount - oldOrderAmount;
-            if (diffAmount != 0) {
-                customerOrderApi.updateActualAmount(saleOrder.getCustomerOrderId(), diffAmount);
-            }
+            // 直接设置 orderAmount
+            customerOrderApi.updateOrderAmount(saleOrder.getCustomerOrderId(), newOrderAmount);
 
 
             // 8. 更新 ErpPurchaseOrderItemDO
             // 8. 更新 ErpPurchaseOrderItemDO
             ErpPurchaseOrderItemDO purchaseOrderItem = purchaseOrderItemMapper.selectByCustomerOrderItemId(saleItemOrder.getCustomerOrderItemId());
             ErpPurchaseOrderItemDO purchaseOrderItem = purchaseOrderItemMapper.selectByCustomerOrderItemId(saleItemOrder.getCustomerOrderItemId());

foodnexus-module-mall/foodnexus-module-order-api/src/main/java/cn/iocoder/foodnexus/module/order/api/CustomerOrderApi.java

@@ -32,5 +32,7 @@ public interface CustomerOrderApi {
 
 
     void updateActualAmount(Long id, int addAmount);
     void updateActualAmount(Long id, int addAmount);
 
 
+    void updateOrderAmount(Long id, int orderAmount);
+
     void updatePurchaseAnnex(Long customerOrderId, Long supplierId, Long productId, String annex);
     void updatePurchaseAnnex(Long customerOrderId, Long supplierId, Long productId, String annex);
 }
 }

foodnexus-module-mall/foodnexus-module-order/src/main/java/cn/iocoder/foodnexus/module/order/service/customerorder/CustomerOrderServiceImpl.java

@@ -936,6 +936,19 @@ public class CustomerOrderServiceImpl implements CustomerOrderService, CustomerO
     }
     }
 
 
     @Override
     @Override
+    public void updateOrderAmount(Long id, int orderAmount) {
+        String lock = String.format(ORDER_LOCK, id);
+        RedisUtils.tryLockRds(lock);
+        try {
+            customerOrderMapper.update(Wrappers.<CustomerOrderDO>lambdaUpdate()
+                    .set(CustomerOrderDO::getOrderAmount, orderAmount)
+                    .eq(CustomerOrderDO::getId, id));
+        } finally {
+            RedisUtils.unLockRds(lock);
+        }
+    }
+
+    @Override
     public void updatePurchaseAnnex(Long customerOrderId, Long supplierId, Long productId, String annex) {
     public void updatePurchaseAnnex(Long customerOrderId, Long supplierId, Long productId, String annex) {
         customerOrderItemMapper.update(Wrappers.<CustomerOrderItemDO>lambdaUpdate()
         customerOrderItemMapper.update(Wrappers.<CustomerOrderItemDO>lambdaUpdate()
                 .set(CustomerOrderItemDO::getPurchaseAnnex, annex)
                 .set(CustomerOrderItemDO::getPurchaseAnnex, annex)