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HomeBackend DevelopmentPHP Tutorial这种类型的网站用户权限控制,如何实现?

请教一个网站用户管理权限的问题:
1. 网站后台数据库中news数据表中存放所有新闻内容,news中有一个字段为新闻类别,新闻类别有“政治”,“经济”,“体育” 3类。 
2. 网站后台管理员有“政治”,“经济”,“体育” 以及“超级管理员”共4种类别

要求:
1. 每个类别的管理员只能浏览和编辑对应类型的新闻内容。例如 “政治”类别管理员只能浏览和编辑“政治”类新闻,不能浏览其它类型新闻。
2 “超级管理员”则可以浏览并编辑所有新闻

如何设计方便合理?请大家指点


回复讨论(解决方案)

news 表有一个rid,对应于user表的rid,则用户登陆后,获取用户的rid去查询news表就是了。
当登陆的是超级管理员,就查询所有news记录

设一权限表,包含 类别、用户id 两字段
其中:
类别 对应 news表的 新闻类别 字段
用户id 为有权限的用户id列表,多个id用逗号分隔
例如:
类别 用户id
政治 0,1
经济 0,2
体育 0,3

0、1、2、3 分别是 超级管理员、政治管理员、经济管理员、体育管理员 的id

角色表
id type_ids
1   0,1,2
2   0
3   1
4   2

1 2 3 4 分别是 超级管理员、政治管理员、经济管理员、体育管理员 的id

0 1 2 分别是 政治 经济 体育
登陆的时候可以获取 type_ids
查news表的时候 select 字段 from table where 类型 in (type_ids)

设置一一对应的权限表,每个userid对应一个typeid
优点是方便增删user或type。
id_user    id_type
--------------------
1          2
1          3
2          4
3          5

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