From 51fa66f61aca23d5c8a119672f75fcd291a6cff2 Mon Sep 17 00:00:00 2001
From: RuoYi <yzz_ivy@163.com>
Date: 星期三, 05 八月 2020 14:28:45 +0800
Subject: [PATCH] 唯一限制条件只返回单条数据

---
 ruoyi-system/src/main/resources/mapper/system/SysDeptMapper.xml |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/ruoyi-system/src/main/resources/mapper/system/SysDeptMapper.xml b/ruoyi-system/src/main/resources/mapper/system/SysDeptMapper.xml
index 9da14d8..36c2aa5 100644
--- a/ruoyi-system/src/main/resources/mapper/system/SysDeptMapper.xml
+++ b/ruoyi-system/src/main/resources/mapper/system/SysDeptMapper.xml
@@ -64,7 +64,7 @@
 	
 	<select id="hasChildByDeptId" parameterType="Long" resultType="int">
 		select count(1) from sys_dept
-		where del_flag = '0' and parent_id = #{deptId}
+		where del_flag = '0' and parent_id = #{deptId} limit 1
 	</select>
 	
 	<select id="selectChildrenDeptById" parameterType="Long" resultMap="SysDeptResult">

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