具有可选范围“:locale"的 Rails 路由 [英] Rails routes with optional scope ":locale"

问题描述

我正在开发一个 Rails 3.1 应用程序，我想为该应用程序将支持的不同语言设置特定的路由.

I'm working on a Rails 3.1 app and I'd like to set specific routes for the different languages the app is going to support.

/es/countries
/de/countries
…

对于默认语言 ('en')，我不希望在 url 中显示区域设置.

For the default language ('en'), I don't want the locale to be displayed in the url.

/countries

这是我设置的路由定义.

Here is the route definition I've set.

scope "(:locale)", :locale => /es|de/ do
   resources :countries
end

效果很好，直到我尝试使用带有en"作为语言环境的路径助手.

It works great, until I try to use a path helper with 'en' as the locale.

在控制台中:

app.countries_path(:locale => 'fr')
 => "/fr/countries" 

app.countries_path(:locale => 'en')
 => "/countries?locale=en" 

我不想要?locale=en".

I don't want the "?locale=en".

有没有办法告诉 rails 使用en"语言环境时，不应将语言环境参数添加到 url 中?

Is there a way to tell rails that with an 'en' locale, the locale param should not be added to the url?

谢谢

推荐答案

我终于想出了如何轻松做到这一点.您只需在应用控制器中设置 default_url_options 如下.

I finally figured out how to do it easily. You just have to set the default_url_options in the app controller as below.

  def default_url_options(options={})
    { :locale => I18n.locale == I18n.default_locale ? nil : I18n.locale  }
  end

这样，您可以确定语言环境不会发送到路径助手.

This way, you are sure the locale isn't sent to the path helpers.

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