Ruby on rails 引导按钮下拉列表未显示在我的Rails应用程序中

My Rails 4应用程序具有以下项目的edit.html.haml视图：

%h1
  Edit Project
  .actions
    = link_to 'Browse', projects_path, :class => 'btn'
    = link_to 'View', project_path, :class => 'btn'
    - if ((@project.teams.map { |t| t.user_id }.include? current_user.id) || is_admin?)
      %a.btn.dropdown{:hfref => '#', :data => {:toggle => 'dropdown'}}
        = 'Time'
        %span.caret
        %ul.dropdown-menu{:role => 'menu', 'aria-labelledby' => 'dLabel'}
          %li
            = link_to 'Submitted', billables_path(:project_id => @project.id, :status => 'Submitted')
          %li
            = link_to 'Totalled', billables_path(:project_id => @project.id, :status => 'Totalled')
          %li
            = link_to 'Adjusted', billables_path(:project_id => @project.id, :status => 'Adjusted')
          %li
            = link_to 'Billed', billables_path(:project_id => @project.id, :status => 'Billed')
      = link_to 'Software', tools_path(:project_id => @project.id), :class => 'btn'
      = link_to 'Expense', expenses_path(:project_id => @project.id), :class => 'btn'
    = render :partial => 'team', :locals => { :project => @project }

= render :partial => 'form'

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我不知道为什么当我点击下面有四个菜单项的“时间”按钮时，下拉菜单没有显示。浏览器控制台未显示任何错误。

是否正在加载引导程序的javascript文件？

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该下拉列表与bootstrap.js中包含的下拉javaScript插件交互。

我找到了它。我将为那些可能感兴趣的人发布我的解决方案。以下是我希望的修订代码：

%h1
  Edit Project
  .actions
    = link_to 'Browse', projects_path, :class => 'btn'
    = link_to 'View', project_path, :class => 'btn'
    - if ((@project.teams.map { |t| t.user_id }.include? current_user.id) || is_admin?)
      %span.dropdown
        %a.dropdown-toggle{:role => 'button', :href => '#', :data => {:toggle => 'dropdown'}, :class => 'btn'}
          = 'Time'
          %b.caret
        %ul.dropdown-menu{:role => 'menu', 'aria-labelledby' => 'dLabel'}
          %li
            = link_to 'Submitted', billables_path(:project_id => @project.id, :status => 'Submitted')
          %li
            = link_to 'Totalled', billables_path(:project_id => @project.id, :status => 'Totalled')
          %li
            = link_to 'Adjusted', billables_path(:project_id => @project.id, :status => 'Adjused')
          %li
            = link_to 'Billed', billables_path(:project_id => @project.id, :status => 'Billed')
      = link_to 'Software', tools_path(:project_id => @project.id), :class => 'btn'
      = link_to 'Expense', expenses_path(:project_id => @project.id), :class => 'btn'
    = render :partial => 'team', :locals => { :project => @project }

= render :partial => 'form'

这确实是一个CSS和HTML问题。1.请注意下面的%span.下拉列表-如果。。 它确保链接或按钮与其余链接或按钮保持在线。有了这个小小的改变，一切都正常了

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@Papzord，谢谢你试图帮助我。

是的，我正在加载javascript文件。我的导航栏中的下拉菜单工作正常。这是我试图在编辑页面上显示的附加菜单。抱歉。下拉菜单实际上显示出来了！但它不是从链接上掉下来，而是在左下角弹出！有点奇怪？文件上说可能需要额外的定位。这是一个CSS问题。您使用的是哪个版本的引导？