all-project/docs/设计文档/database/fix_朱茏_换班级新增权限.sql

-- ============================================================
-- 临时权限修复：换班级「新增」权限（学生信息页提交换班级接口）
-- 背景：
--   前端换班级按钮权限：studentMsg:class:change
--   后端提交接口校验：studentMsg:studentClassChange:add
--   有按钮但提交报 403 Forbidden（无访问权限）
-- 适用：
--   朱茏老师（user_id=223，角色含 3003-学生信息管理）及同类角色
-- 执行后：
--   相关用户需重新登录，使权限缓存生效
-- ============================================================

-- ------------------------------------------------------------
-- A) 先查：朱茏是否已具备 add / 前端按钮权限（只读，可单独执行）
-- ------------------------------------------------------------
SELECT
  u.user_id,
  u.user_name,
  u.nick_name,
  r.role_id,
  r.role_name,
  m.menu_id,
  m.menu_name,
  m.perms
FROM sys_user u
JOIN sys_user_role ur ON ur.user_id = u.user_id
JOIN sys_role r ON r.role_id = ur.role_id
JOIN sys_role_menu rm ON rm.role_id = r.role_id
JOIN sys_menu m ON m.menu_id = rm.menu_id
WHERE u.user_id = 223
  AND m.perms IN (
    'studentMsg:class:change',
    'studentMsg:studentClassChange:add',
    'studentMsg:studentClassChange:list',
    'studentMsg:studentClassChange:query',
    'studentMsg:studentClassChange:edit',
    'studentMsg:studentClassChange:remove',
    'studentMsg:studentClassChange:export'
  )
ORDER BY m.perms, r.role_id;

-- 汇总：是否具备关键权限（有行=有，无行=没有）
SELECT
  'studentMsg:class:change' AS perms,
  EXISTS (
    SELECT 1
    FROM sys_user_role ur
    JOIN sys_role_menu rm ON rm.role_id = ur.role_id
    JOIN sys_menu m ON m.menu_id = rm.menu_id
    WHERE ur.user_id = 223 AND m.perms = 'studentMsg:class:change'
  ) AS has_perm
UNION ALL
SELECT
  'studentMsg:studentClassChange:add',
  EXISTS (
    SELECT 1
    FROM sys_user_role ur
    JOIN sys_role_menu rm ON rm.role_id = ur.role_id
    JOIN sys_menu m ON m.menu_id = rm.menu_id
    WHERE ur.user_id = 223 AND m.perms = 'studentMsg:studentClassChange:add'
  );

-- 库中是否已存在 add 菜单权限码
SELECT menu_id, menu_name, parent_id, perms, status, visible
FROM sys_menu
WHERE perms IN (
  'studentMsg:class:change',
  'studentMsg:studentClassChange:add',
  'studentMsg:studentClassChange:list'
)
ORDER BY perms;

-- ============================================================
-- 以下为修复段：确认缺权限后再执行；先备份再改
-- ============================================================

-- ------------------------------------------------------------
-- 0) 修改前备份相关表（带时间戳后缀，避免覆盖）
-- ------------------------------------------------------------
SET @bak_suffix = DATE_FORMAT(NOW(), '%Y%m%d_%H%i%s');

SET @sql_bak_menu = CONCAT(
  'CREATE TABLE IF NOT EXISTS sys_menu_bak_', @bak_suffix,
  ' AS SELECT * FROM sys_menu'
);
PREPARE stmt_bak_menu FROM @sql_bak_menu;
EXECUTE stmt_bak_menu;
DEALLOCATE PREPARE stmt_bak_menu;

SET @sql_bak_role_menu = CONCAT(
  'CREATE TABLE IF NOT EXISTS sys_role_menu_bak_', @bak_suffix,
  ' AS SELECT * FROM sys_role_menu'
);
PREPARE stmt_bak_role_menu FROM @sql_bak_role_menu;
EXECUTE stmt_bak_role_menu;
DEALLOCATE PREPARE stmt_bak_role_menu;

SELECT
  CONCAT('sys_menu_bak_', @bak_suffix) AS menu_backup_table,
  CONCAT('sys_role_menu_bak_', @bak_suffix) AS role_menu_backup_table;

-- ------------------------------------------------------------
-- 1) 解析父菜单：优先挂在「换班级」列表菜单下，否则挂在「换班级」按钮同级父菜单
-- ------------------------------------------------------------
SET @parent_id = (
  SELECT parent_id
  FROM sys_menu
  WHERE perms = 'studentMsg:studentClassChange:list'
    AND menu_type IN ('C', 'M')
  ORDER BY menu_id
  LIMIT 1
);

-- list 本身若是目录/菜单，直接用其 menu_id 作父级
SET @parent_id = IFNULL(
  (
    SELECT menu_id
    FROM sys_menu
    WHERE perms = 'studentMsg:studentClassChange:list'
      AND menu_type IN ('C', 'M')
    ORDER BY menu_id
    LIMIT 1
  ),
  @parent_id
);

-- 仍找不到时，退化为 class:change 按钮的父菜单
SET @parent_id = IFNULL(
  @parent_id,
  (
    SELECT parent_id
    FROM sys_menu
    WHERE perms = 'studentMsg:class:change'
    ORDER BY menu_id
    LIMIT 1
  )
);

-- 最终兜底：学籍异动信息菜单（与学籍异动修复脚本同父级，仅当上面都找不到时）
SET @parent_id = IFNULL(@parent_id, 2004197349643042818);

SELECT @parent_id AS resolved_parent_id;

-- ------------------------------------------------------------
-- 2) 新增「换班级-新增」按钮权限（若不存在）
-- ------------------------------------------------------------
INSERT INTO sys_menu (
  menu_id, menu_name, parent_id, order_num, path, component, query_param,
  is_frame, is_cache, menu_type, visible, status, perms, icon,
  create_dept, create_by, create_time, update_by, update_time, remark
)
SELECT
  2005461500000000002,
  '新增',
  @parent_id,
  1,
  '',
  NULL,
  NULL,
  1,
  0,
  'F',
  '0',
  '0',
  'studentMsg:studentClassChange:add',
  '',
  100,
  1,
  NOW(),
  1,
  NOW(),
  '补齐换班级提交接口权限，解决学生信息页换班级提交403'
FROM DUAL
WHERE NOT EXISTS (
  SELECT 1 FROM sys_menu WHERE perms = 'studentMsg:studentClassChange:add'
);

-- ------------------------------------------------------------
-- 3) 给「学生信息管理（保留）」角色(3003)授权
-- ------------------------------------------------------------
INSERT INTO sys_role_menu (role_id, menu_id)
SELECT 3003, m.menu_id
FROM sys_menu m
WHERE m.perms = 'studentMsg:studentClassChange:add'
  AND NOT EXISTS (
    SELECT 1 FROM sys_role_menu rm
    WHERE rm.role_id = 3003 AND rm.menu_id = m.menu_id
  );

-- ------------------------------------------------------------
-- 4) 兼容：所有已有「换班级」按钮权限的角色，一并补上 add
-- ------------------------------------------------------------
INSERT INTO sys_role_menu (role_id, menu_id)
SELECT DISTINCT rm.role_id, add_menu.menu_id
FROM sys_role_menu rm
JOIN sys_menu btn ON btn.menu_id = rm.menu_id AND btn.perms = 'studentMsg:class:change'
JOIN sys_menu add_menu ON add_menu.perms = 'studentMsg:studentClassChange:add'
WHERE NOT EXISTS (
  SELECT 1 FROM sys_role_menu x
  WHERE x.role_id = rm.role_id AND x.menu_id = add_menu.menu_id
);

-- ------------------------------------------------------------
-- 5) 校验：朱茏是否已具备 add 权限
-- ------------------------------------------------------------
SELECT
  u.user_id,
  u.user_name,
  u.nick_name,
  r.role_id,
  r.role_name,
  m.perms,
  m.menu_name,
  m.menu_id
FROM sys_user u
JOIN sys_user_role ur ON ur.user_id = u.user_id
JOIN sys_role r ON r.role_id = ur.role_id
JOIN sys_role_menu rm ON rm.role_id = r.role_id
JOIN sys_menu m ON m.menu_id = rm.menu_id
WHERE u.user_id = 223
  AND m.perms IN (
    'studentMsg:class:change',
    'studentMsg:studentClassChange:add',
    'studentMsg:studentClassChange:list'
  )
ORDER BY m.perms, r.role_id;

SELECT
  'studentMsg:studentClassChange:add' AS perms,
  EXISTS (
    SELECT 1
    FROM sys_user_role ur
    JOIN sys_role_menu rm ON rm.role_id = ur.role_id
    JOIN sys_menu m ON m.menu_id = rm.menu_id
    WHERE ur.user_id = 223 AND m.perms = 'studentMsg:studentClassChange:add'
  ) AS has_perm;

-- ------------------------------------------------------------
-- 回滚示例（按需执行，把后缀换成上面查出的备份表名）
-- ------------------------------------------------------------
-- TRUNCATE TABLE sys_role_menu;
-- INSERT INTO sys_role_menu SELECT * FROM sys_role_menu_bak_YYYYMMDD_HHMMSS;
-- DELETE FROM sys_menu WHERE perms = 'studentMsg:studentClassChange:add';
-- -- 或整表回滚菜单：
-- -- TRUNCATE TABLE sys_menu;
-- -- INSERT INTO sys_menu SELECT * FROM sys_menu_bak_YYYYMMDD_HHMMSS;