子部门获取部门审批人

oa-back/ruoyi-admin/src/main/java/com/ruoyi/web/controller/system/SysPostController.java

             deptLeader = postService.selectSubGmByUserId(userId);
         if (deptLeader == null)
             deptLeader = postService.selectBranchLeaderByUserId(userId);
+        if (deptLeader == null)
+            deptLeader = postService.selectParentDeptLeaderByUserId(userId);
         return success(deptLeader);
     }
 

oa-back/ruoyi-system/src/main/java/com/ruoyi/system/mapper/SysUserPostMapper.java

      * @param
      * @return 查询部门主任
      */
-    public List<SysUser> selectDeptLeadersByUserId(String userId);
+    public SysUser selectParentDeptLeaderByUserId(String userId);
 
     /**
      * 查询部门副主任

oa-back/ruoyi-system/src/main/java/com/ruoyi/system/service/ISysPostService.java

      * @param
      * @return 查询部门主任
      */
-    public List<SysUser> selectDeptLeadersByUserId(String userId);
+    public SysUser selectParentDeptLeaderByUserId(String userId);
 
     /**
      * 查询部门副主任

oa-back/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/SysPostServiceImpl.java

      * @return 查询部门主任
      */
     @Override
-    public List<SysUser> selectDeptLeadersByUserId(String userId) {
-        return userPostMapper.selectDeptLeadersByUserId(userId);
+    public SysUser selectParentDeptLeaderByUserId(String userId) {
+        return userPostMapper.selectParentDeptLeaderByUserId(userId);
     }
 
     /**

oa-back/ruoyi-system/src/main/resources/mapper/system/SysUserPostMapper.xml

 		where p.post_name = '主任'
 	</select>
 
-	<select id="selectDeptLeadersByUserId" parameterType="String" resultMap="SysUserResult">
+	<select id="selectParentDeptLeaderByUserId" parameterType="String" resultMap="SysUserResult">
 		select r.user_id, r.nick_name from
-		(select u1.user_id, u1.nick_name, u.dept_id from
-		sys_user as u, sys_user as u1 where u.user_id = #{param} and u1.dept_id = u.dept_id) as r
+		(select u.dept_id, d.parent_id, u1.user_id, u1.nick_name from sys_user as u
+		left join sys_dept as d on d.dept_id = u.dept_id
+		left join sys_user as u1 on u1.dept_id = d.parent_id where u.user_id = 121) as r
 		left join sys_user_post as up on r.user_id = up.user_id
 		left join sys_post as p on p.post_id = up.post_id
 		where p.post_name = '主任'