Rails - 使用语言环境重定向

Question

我在application.rb 中设置了locale 的基本选项：

config.i18n.available_locales = [:pl, :en]
config.i18n.default_locale = :pl

并且还限定了路线：

Rails.application.routes.draw do
    get '/:locale', to: 'home#index'
    root            to: 'home#index'

    scope ":locale", locale: /#{I18n.available_locales.join("|")}/  do
      get 'settings', to: 'home#settings'
    end
end

这样我可以访问我在www.mysite.com 和www.mysite.com/en or pl 下的根站点，以及在url 中包含语言环境时我的设置站点。

现在假设用户输入了www.mysite.com/settings。我想让我的应用知道 url 中没有语言环境，所以去抓取default_locale，设置它，然后重定向到www.mysite.com/pl/settings。

我该怎么做？

PS 我也将这些添加到我的ApplicationController：

before_action :set_locale

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

    def default_url_options
      { locale: I18n.locale }
    end

Answer 1

如果用户在接受语言标头中没有波兰语，即使您将其他非本地化路由重定向到波兰语，最好将 根路径 重定向到英语。

 # Usefull to parse accept-language header but also for browser detection
 gem 'browser'

在 routes.rb 中：

Rails.application.routes.draw do
  scope ':locale', locale: /#{I18n.available_locales.join('|')}/ do
    # Your routes...

    # Home
    root 'pages#index'
  end

  root 'pages#detect_locale'

  # Catch all requests without a available locale and redirect to the PL default...
  # The constraint is made to not redirect a 404 of an existing locale on itself
  get '*path', to: redirect("/#{I18n.default_locale}/%{path}"), 
               constraints: { path: %r{(?!(#{I18n.available_locales.join('|')})\/).*} }
end

在控制器中：

class PagesController < ApplicationController
  def index; end

  # Detect localization preferences
  def detect_locale
    # You can parse yourself the accept-language header if you don't use the browser gem
    languages = browser.accept_language.map(&:code)

    # Select the first language available, fallback to english
    locale = languages.find { |l| I18n.available_locales.include?(l.to_sym) } || :en

    redirect_to root_path(locale: locale)
  end
end

Answer 2

Rails.application.routes.draw do
  scope ':locale', locale: /#{I18n.available_locales.join("|")}/ do
    root 'users/landing#index'
    get '*path', to: 'users/errors#not_found'
  end
  root to: redirect("/#{I18n.default_locale}", status: 302), as: :redirected_root
  get "/*path", to: redirect("/#{I18n.default_locale}/%{path}", status: 302)
end