更改Rails中的当前选项卡 [英] Changing Current Tab in Rails

问题描述

我有一个应用程序顶部的选项卡列表，我在application.html.erb中的一般布局中。它们如下所示：

I have a list of tabs at the top of my application that I include in a general layout in application.html.erb. They look like this:

<li class="current"><%= link_to "Home", provider_path(current_user.id), :method=> "GET"%> </li>
            <li><%= link_to "Edit Profile", edit_student_path(current_user.id) %> </li>
            <li><%= link_to "Search", provider_search_path %> </li>

当我点击该页面时，我想将所选标签更改为当前。因此，当我点击编辑个人资料并加载编辑个人资料页面时，标签应该显示如下：

I want to change the selected tab to the "current" one, when I hit that page. So when I click Edit Profile and the Edit Profile page loads, the tabs should appear as follows:

<li><%= link_to "Home", provider_path(current_user.id), :method=> "GET"%> </li>
 <li class="current"><%= link_to "Edit Profile", edit_student_path(current_user.id) %> </li>
  <li><%= link_to "Search", provider_search_path %> </li>

有没有办法在添加javascript到显示的页面之外？

Is there a way to do this outside of adding javascript to the page which is displayed? Or if there is what is generally best practice for doing this in the DRYest way possible.

感谢

推荐答案

您可以使用 controller.class == 和 controller.action_name == 确定您所使用的控制器和操作

You can use controller.class == and controller.action_name == to figure out exactly which controller and action you are on

这样就像

<li class="<%= controller.class == ProviderController and controller.action_name == 'show' ? 'current' : '' %>"><%= link_to "Home", provider_path(current_user.id), :method=> "GET"%> </li>
<li class="<%= controller.class == StudentController and controller.action_name == 'edit' ? 'current' : '' %>"><%= link_to "Edit Profile", edit_student_path(current_user.id) %> </li>
<li class="<%= controller.class == ProviderController and controller.action_name == 'search' ? 'current' : '' %>"><%= link_to "Search", provider_search_path %> </li>

我相信有一些方法可以获取当前网页的网址， 活动样式将依赖于只通过该路径获得该动作，这可能不总是这样的情况，这取决于路由，这种方式将确保视图显示什么是真正的基于实际运行，而不是URL是在地址栏

I believe there are some ways to get the current url for the page you are on, but then your "active" styling will be dependent on only getting to that action via that path, which may not always be the case depending on the routes, this way will ensure the view shows what is true based on what was actually run, not what the url is in the address bar

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