如何在rails应用程序上放置一个选择框来选择站点的语言?

Question

我是rails的新手，我已经学会了如何使用区域设置来改变我的网站语言，但我想在导航栏的右侧放一个选择框，可以通过变量/会话来改变整个网站语言。这可能吗?我用的是Ruby: 1.9.3, Rails:3.2.2

这是我的导航栏布局/应用程序。html。动词" so far:

<div class="upmenu">
    <ul align="left">
        <li><a href="/issues"><%=t "nav.issues.list" %></a></li>
        <li><a href="/issues/new"><%=t "nav.issues.new" %></a></li>
        <li><a href="/timeline/index"><%=t "nav.timeline" %></a></li>
        <li><a href="/projects"><%=t "nav.projects" %></a></li>
        <%= yield :nav %>       
    </ul>
    <ul id="language">
        <li><%= select_tag(:lang, options_for_select([['Portuguese', 'pt'], ['English', 'en']])) %></li>
    </ul>
</div>

还记得我为我的url使用了以下作用域，所以它类似于>"Localhost:3000/en/issues/"

  scope "/:locale" do
    get "/timeline/index", to: "timeline#index"
    resources :projects
    resources :issues
  end

这是我的路线:

timeline_index GET    /:locale/timeline/index(.:format)    timeline#index
      projects GET    /:locale/projects(.:format)          projects#index
               POST   /:locale/projects(.:format)          projects#create
   new_project GET    /:locale/projects/new(.:format)      projects#new
  edit_project GET    /:locale/projects/:id/edit(.:format) projects#edit
       project GET    /:locale/projects/:id(.:format)      projects#show
               PUT    /:locale/projects/:id(.:format)      projects#update                                                           
               DELETE /:locale/project
               DELETE /:locale/projects/:id(.:format)      projects#destroy                                                          
.:format)            issues#index
        issues GET    /:locale/issues(.:format)            issues#index
               POST   /:locale/issues(.:format)            issues#create                                                             
               PUT    /:locale/projects/:id(.:format)      projects#update
               DELETE /:locale/projects/:id(.:format)      projects#destroy
        issues GET    /:locale/issues(.:format)            issues#index
               POST   /:locale/issues(.:format)            issues#create
     new_issue GET    /:locale/issues/new(.:format)        issues#new
    edit_issue GET    /:locale/issues/:id/edit(.:format)   issues#edit
         issue GET    /:locale/issues/:id(.:format)        issues#show
               PUT    /:locale/issues/:id(.:format)        issues#update
               DELETE /:locale/issues/:id(.:format)        issues#destroy

Answer 1

这是可能的

在你的视图

<li><%= select_tag(:locale, options_for_select([['Portuguese', 'pt'], ['English', 'en']])) %></li>

在ApplicationController

中

before_action :set_locale
 def set_locale
    I18n.locale = params[:locale] || I18n.default_locale
  end 

Answer 2

您不必为此使用选择框。

这是我想到的解决方案:

<标题>配置/application.rb h1> 标题> app/controllers/application_controller.rb h1> 标题>应用程序/帮助/language_helper.rb h1> p>现在只需将language_selector放在需要它的地方，例如在页面的右上角。它生成的标记是这样的(可能需要一些CSS样式和/或Javascript功能):

<li>
  <a class="dropdown" href="/de">Deutsch</a>
  <ul>
    <li><a href="/en">English</a></li>
    <li><a href="/es">Español</a></li>
  </ul>
</li>

享受吧!