From f0bcb5fa2f5d081b0691e24533e415dab102a24b Mon Sep 17 00:00:00 2001
From: xiaoyong931011 <15274802129@163.com>
Date: Sat, 24 Sep 2022 16:29:12 +0800
Subject: [PATCH] 20220902
---
src/main/resources/mapper/modules/MallGoodsMapper.xml | 14 ++++++++++++++
1 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/src/main/resources/mapper/modules/MallGoodsMapper.xml b/src/main/resources/mapper/modules/MallGoodsMapper.xml
index b401ffd..6f5ee74 100644
--- a/src/main/resources/mapper/modules/MallGoodsMapper.xml
+++ b/src/main/resources/mapper/modules/MallGoodsMapper.xml
@@ -264,4 +264,18 @@
from mall_goods_comment a limit 1
</select>
+ <update id="upDateStockAndVolumeByGoodsId">
+ update mall_goods
+ set stock = stock - #{cnt},
+ volume = volume + #{cnt}
+ where id=#{id} and stock - #{cnt} <![CDATA[ >= ]]> 0
+ </update>
+
+ <update id="updateStockAndVolumeByGoodsId">
+ update mall_goods
+ set stock = stock + #{cnt},
+ volume = volume - #{cnt}
+ where id=#{id} and volume - #{cnt} <![CDATA[ >= ]]> 0
+ </update>
+
</mapper>
\ No newline at end of file
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