退单 扣除销量

src/main/java/com/chaozhanggui/system/cashierservice/dao/TbProductSkuMapper.java

@@ -48,6 +48,9 @@ public interface TbProductSkuMapper {
     @Update("update tb_product_sku set stock_number=stock_number-#{num} WHERE id=#{id} and stock_number-#{num} >= 0")
     int decrStock(String id, int num);
 
+    @Update("update tb_product_sku set real_sales_number=real_sales_number-#{num} WHERE id=#{skuId}")
+    int decrRealSalesNumber(@Param("skuId") Integer skuId, @Param("num") Integer num);
+
     @Update("update tb_product_sku set stock_number=stock_number-#{num} WHERE id=#{id} ")
     int decrStockUnCheck(String id, int num);
 

src/main/java/com/chaozhanggui/system/cashierservice/service/PayService.java

@@ -1325,6 +1325,7 @@ public class PayService {
                         tbProductStockDetail.setStockNumber(Double.valueOf(detail.getReturnNum()));
                     }
                 }
+                productSkuMapper.decrRealSalesNumber(productSku.getId(), detail.getReturnNum());
             }
 
             productStockDetailMapper.insert(tbProductStockDetail);