切换非 attr_accessible 变量

发布于 2024-11-07 20:25:32 字数 787 浏览 2 评论 0原文

我正在创建一个 Rails 应用程序，它是一个博客平台，有许多撰稿人。我的 User 模型有一个 :writer 布尔属性来指示特定用户是否有权发布文章。为了防止批量分配，:writer 属性未列在 user 模型的 attr_accessible 下。相反，我考虑创建一个类似于以下内容的函数，以允许切换编写者权限：

def toggle_writer    
  if User.find(:id).writer?
    User.find(:id).update_attribute(:writer, false)
  else
    User.find(:id).update_attribute(:writer, true)
  end
  flash[:success] = "User permissions toggled."
  redirect_to admintools_users_path
end

不过，我对这种方法有几个问题：

我如何从视图中调用它？有没有办法通过 link_to 或 button_for 调用函数？
我应该把这样的功能放在哪里？在控制器中，还是助手中？
我需要编辑 config/routes.rb 文件中的任何路由吗？

预先感谢您的帮助！

原文

I am creating a Rails application that is a blogging platform, with many contributing writers. My User model has a :writer boolean attribute to indicate whether or not a particular user has permission to publish an article. In order to prevent mass assignment, the :writer attribute is NOT listed under attr_accessible for the User model. Instead, I thought of creating a function similar to the following, to allow for toggling of the writer-permissions:

def toggle_writer    
  if User.find(:id).writer?
    User.find(:id).update_attribute(:writer, false)
  else
    User.find(:id).update_attribute(:writer, true)
  end
  flash[:success] = "User permissions toggled."
  redirect_to admintools_users_path
end

I have several questions regarding this approach, though:

How would I invoke this from a view? Is there a way to invoke a function via a link_to or button_for?
Where would I put such a function? In a controller, or helper?
Would I need to edit any routes in the config/routes.rb file?

Thanks in advance for your help!

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陌伤ぢ 2024-11-14 20:25:32

是的，你可以。
如果将其放入 users_controller 中，效果会更好。

是的，你会的。由于此操作将更新单个用户，因此您应该在 routes.rb 中执行以下操作：

 资源：用户做的
   member do #this 表示您正在对某个对象执行操作
     获取：toggle_writer，：as => :toggle_writer_for # 此行将生成toggle_writer_for_user_path 路由
   结尾
 结尾

现在您可以将此路由与 link_to 一起使用，例如 link_to("Toggle writer",toggle_writer_for_user_path(@user))，其中@user是您可以从params[:id]获取。

Yes you can.
Better if you put it in the users_controller.

Yes, you would. As this action is going to update a single user, so, you should do the following in routes.rb:

 resources :users do
   member do #this means you are doing with a certain object
     get :toggle_writer, :as => :toggle_writer_for # this line will generate toggle_writer_for_user_path route
   end
 end

Now you can use this route with link_to, like link_to("Toggle writer", toggle_writer_for_user_path(@user)), where @user is you can get from params[:id].

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