-- 修复：胶料分类字典（XSLMES_RUBBER）数据库有数据但页面不展示
-- 场景：开启多租户后，sys_category 的 tenant_id 与当前登录租户不一致/为空
SET NAMES utf8mb4;

-- 1) 目标租户：默认取 admin 用户租户；若为空则回退到 0
SET @target_tenant_id = (
  SELECT COALESCE(tenant_id, 0)
  FROM sys_user
  WHERE username = 'admin'
  ORDER BY create_time ASC
  LIMIT 1
);
SET @target_tenant_id = IFNULL(@target_tenant_id, 0);

-- 2) 定位根分类编码
SET @rubber_code = 'XSLMES_RUBBER';

-- 若根节点不存在则补一个最小根节点（避免前端 pcode 查询直接失败）
INSERT INTO sys_category (id, pid, name, code, has_child, tenant_id, create_by, create_time, update_by, update_time)
SELECT '1994000000000000001', '0', 'MES胶料分类', @rubber_code, '1', @target_tenant_id, 'admin', NOW(), 'admin', NOW()
FROM dual
WHERE NOT EXISTS (
  SELECT 1 FROM sys_category WHERE code = @rubber_code
);

SET @rubber_root_id = (
  SELECT id
  FROM sys_category
  WHERE code = @rubber_code
  ORDER BY create_time ASC
  LIMIT 1
);

-- 3) 若根节点存在，统一修复租户与父子标记
UPDATE sys_category
SET tenant_id = @target_tenant_id
WHERE id = @rubber_root_id;

UPDATE sys_category
SET tenant_id = @target_tenant_id
WHERE pid = @rubber_root_id;

-- 根节点是否有子节点，按真实数据回写
UPDATE sys_category
SET has_child = CASE
  WHEN EXISTS (SELECT 1 FROM (SELECT id FROM sys_category WHERE pid = @rubber_root_id LIMIT 1) t) THEN '1'
  ELSE '0'
END
WHERE id = @rubber_root_id;

-- 子节点统一标记为无子（当前这批分类通常为叶子）
UPDATE sys_category
SET has_child = '0'
WHERE pid = @rubber_root_id;

-- 4) 结果检查（执行后看返回）
SELECT 'ROOT' AS level_tag, id, pid, code, name, tenant_id, has_child
FROM sys_category
WHERE id = @rubber_root_id
UNION ALL
SELECT 'CHILD' AS level_tag, id, pid, code, name, tenant_id, has_child
FROM sys_category
WHERE pid = @rubber_root_id
ORDER BY level_tag, code;