Rails current_path 助手? [英] Rails current_path Helper?

问题描述

我正在处理具有以下路由条件的 Rails 3.2 应用程序:

I'm working on a Rails 3.2 application with the following routing conditions:

scope "(:locale)", locale: /de|en/ do
  resources :categories, only: [:index, :show]
  get "newest/index", as: :newest
end

我有一个具有以下功能的控制器:

I've a controller with the following:

class LocaleController < ApplicationController
  def set
    session[:locale_override] = params[:locale]
    redirect_to params[:return_to]
  end
end

我在模板中使用了类似的东西:

I'm using this with something like this in the templates:

 = link_to set_locale_path(locale: :de, return_to: current_path(locale: :de)) do
   = image_tag 'de.png', style: 'vertical-align: middle'
     = t('.languages.german')

我想知道为什么 Rails 中不存在诸如 current_path 之类的帮助程序，它可以推断出我们当前正在使用的路由，并重新路由到它包含新选项.

I'm wondering why there doesn't exist a helper in Rails such as current_path, something which is able to infer what route we are currently using, and re-route to it include new options.

我遇到的问题是使用类似 redirect_to :back 的东西，将用户推回到 /en/........(或 /de/...) 这会带来糟糕的体验.

The problem I have is using something like redirect_to :back, one pushes the user back to /en/........ (or /de/...) which makes for a crappy experience.

到目前为止，我一直在会话中存储语言环境，但这不适用于 Google 和其他索引服务.

Until now I was storing the locale in the session, but this won't work for Google, and other indexing services.

我敢肯定，如果我投入足够的时间，我可以做出一些足够聪明的事情来检测匹配的路由，并换掉语言环境部分，但我觉得这将是一个黑客.

I'm sure if I invested enough time I could some up with something that was smart enough to detect which route matched, and swap out the locale part, but I feel like this would be a hack.

我对所有想法持开放态度，但是这个SO 问题 建议只使用 sub();不幸的是，对于像语言环境短代码这样短且频繁出现的字符串，可能不太明智.

I'm open to all thoughts, but this SO question suggests just using sub(); unfortunately with such short and frequently occurring strings as locale short codes, probably isn't too wise.

推荐答案

如果您使用的是 :locale 范围，您可以使用 url_for 作为 current_path:

If you are using the :locale scope, you can use url_for as current_path:

# Given your page is /en/category/newest with :locale set to 'en' by scope

url_for(:locale => :en) # => /en/category/newest
url_for(:locale => :de) # => /de/kategorie/neueste

这篇关于Rails current_path 助手?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！