Rails 3：如何包含基于角色的操作？
我的 RPG 网站上有不同的角色。每个用户可以拥有多个角色，并基于此可以访问功能。假设用户是一名教师和主任，他应该访问一个页面来管理他的科目，另一个页面来管理所有网站。
有些人拥有超过 5 个角色，而在标题中每个办公室有 5 个链接就变得非常尴尬。我怎样才能根据角色采取行动包括其他人？
事实上，我想在一个独特的页面上显示用户可用的所有办公室，包括由单个操作管理的办公室。这怎么可能？
先感谢您 ！
PS：动作在不同的控制器中
I've got different roles on my RPG website. Each user can have many roles and based on this can access features. Let's say for instance a user is a teacher and director, he should access a page to manage his subjects and another to manage all the website.
Some people have more than 5 roles and it becomes really awkward to have 5 links to each office in the header. How can I have an action to include others based on roles ?
In fact, I want to show all the offices available for a user on a unique page including offices managed by single actions. How is this possible ?
Thank you in advance !
PS: Actions are in different controllers
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如果我没听错的话。
我认为这听起来像是用户的权限问题。如果是的话，我推荐Ryan的宝石“CanCan”。它非常容易使用。
CanCan
及其 Railscast：#192 CanCan 授权
If I got you right.
I think it sounds like a user's privilege problem. If it is, I recommend Ryan's gem "CanCan". It's super easy to use.
CanCan
And its Railscast: #192 Authorization with CanCan
建立一个具有角色权重的指挥链。最重的角色融合了许多以某种方式相关的小角色。
Make a chain of command, with role-weights. The heaviest role merges a lot of somehow related small ones.
尝试 Cancan gem，它有一种基于角色限制数据库操作的方法。
docs 中的示例：
@articles = Article.accessible_by(current_ability)
Try the Cancan gem which has a way of constraining database operations based on roles.
Example from docs:
@articles = Article.accessible_by(current_ability)