客户端增加扣减库存

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

@@ -29,4 +29,8 @@ public interface TbProductSkuMapper {
     TbProductSkuWithBLOBs selectByProduct(@Param("productId") Integer productId);
 
     void updateByskuId(@Param("productSkuId") Integer productSkuId,@Param("num") Integer num);
+
+    void updateByskuIdSub(@Param("skuId")Integer skuId, @Param("num")Integer num);
+
+    void updateStockNum(@Param("skuId") Integer skuId, @Param("num") Integer num);
 }