如何检测我们在哪个页面Rails [重复]

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Best way to highlight current page in Rails 3? — apply a css class to links conditionally 8 answers
在Rails 3中突出显示当前页面的最佳方法？ - 应用css类有条件地链接8个答案

I am new to Rails. In my appliction.html.erb, i am using a render partial: to use a html_css shared file. This shared file contains buttons that can be used by different pages. For example, for the pages /posts and /answers a search field with a suubmit button taken from the shared filed is displayed. I would like to make this button work for both pages. When we are in the /posts page, we search in the posts and when we are in the /answers page, we search in the answers.

我是Rails的新手。在我的appliction.html.erb中，我使用了渲染部分：使用html_css共享文件。此共享文件包含可供不同页面使用的按钮。例如，对于页面/帖子和/答案，显示具有从共享字段中取出的提交按钮的搜索字段。我想让这个按钮适用于两个页面。当我们在/ posts页面中，我们搜索帖子，当我们在/ answers页面时，我们搜索答案。

So, i need to call the right controller each time. For that, i need a helper or a trick that enables me to know in which page i am (which controller#index did i call?).

所以，我每次都需要调用正确的控制器。为此，我需要一个助手或技巧，让我知道我在哪个页面（我打电话给哪个控制器#index？）。

Does rails contain a method or a helper enabling this?

rails是否包含启用此方法的方法或帮助程序？

thanks :)

谢谢：）

2 个解决方案

#1

Use the helper functions: controller_name and action_name.

使用辅助函数：controller_name和action_name。

If you have a controller:

如果你有一个控制器：

class UsersController < ApplicationController
  def my_action
    # stuff
  end
end

In the view, you can do:

在视图中，您可以执行以下操作：

Controller name: <%= controller_name %> <br/> # => users
Action name: <%= action_name %> <br/> # => my_action

See: http://guides.rubyonrails.org/action_controller_overview.html#routing-parameters

请参阅：http：//guides.rubyonrails.org/action_controller_overview.html#routing-parameters

#2

Action and controller are in the params already. I imagine you would rather do stuff with that information rather than just display it with controller_name/action_name

动作和控制器已经在params中。我想你宁愿用这些信息来做事情，而不是只用controller_name / action_name来显示它

for instance to display a footer only in the about page assuming the controller is called about_controller you could

例如，假设控制器被称为about_controller你可以在about页面中显示一个页脚

 <% if params[:controller] == about %>
   <%= render partial: 'footer' %>
 <% end %>

params[:action] will contain the action.

params [：action]将包含该动作。

#1