auto_locale.rb

module AutoLocale
  module Helpers
    def switch_to_lang(lang)
      lang == options.locales.first ? request.path_info : request.path_info.sub(/^\//, "/#{lang}/")
    end

    def has_locale?(url)
      url =~ /^\/(#{options.locales.join('|')})\/?/
    end

    def link_to_with_locale (*args, &block)
      unless !options.respond_to?(:locales) || has_locale?(args[0]) || has_locale?(args[1]) || I18n.locale == options.locales.first
        block_given? ? args[0] = "/#{I18n.locale}#{args[0]}" : args[1] = "/#{I18n.locale}#{args[1]}"
      end
      link_to_without_locale(*args, &block)
    end

  end
  # Helpers

  def self.registered(app)
    app.helpers AutoLocale::Helpers
    Padrino::Helpers::AssetTagHelpers.send :include, AutoLocale::Helpers
    Padrino::Helpers::AssetTagHelpers.alias_method_chain :link_to, :locale
    app.set :locales, [:en]
    app.before do
      if request.path_info =~ /^\/(#{options.locales.join('|')})\/?/
        I18n.locale = $1.to_sym
      else
        I18n.locale = options.locales.first
      end
      request.path_info.gsub!(/\/[a-z]{2}\//,"/")
    end
  end
  # self.registered
end
# AutoLocale
                 

facebook_auth.rb

 Allow the metal piece to run in isolation
require(File.dirname(__FILE__) + "/../../config/environment") unless defined?(Rails)
require 'sinatra'

class Auth < Sinatra::Application
  #enable :sessions

  configure do
    FB = YAML.load_file(File.dirname(__FILE__) + "/../../config/facebooker.yml")
  end

  helpers do
    # Load portal and setup facebook oauth
    def facebook_client
      portal = Portal.find(params[:portal_id])
      if RAILS_ENV == "production" && @portal.facebook_api_key
        facebook_connect = FB["production"]["alternative_keys"][portal.facebook_api_key]
      elsif request.host == '127.0.0.1' #debugging keys with callback domain 127.0.0.1
        facebook_connect = {"secret_key" => 'XXXXXXXX', "application_id" => 'XXXX' }
        portal = Portal.find_by_default_start_portal(true)
      else
        facebook_connect = FB[RAILS_ENV]
      end
      facebook_connect["application_id"] = portal.facebook_api_key unless facebook_connect["application_id"]

      callback_url = "#{request.scheme}://#{request.host}:#{request.port}/auth/facebook/callback?portal_id=#{portal.id}"
      return FacebookOAuth::Client.new(
        :application_id => facebook_connect["application_id"],
        :application_secret => facebook_connect["secret_key"],
        :callback => callback_url)
    end

  end

  get '/auth/facebook' do
    client = facebook_client
    if params[:format] == "mobile"
      redirect "#{client.authorize_url}&display=touch"
    else
      redirect client.authorize_url
    end
  end

  get '/auth/facebook/callback' do
    client = facebook_client
    access_token = client.authorize(:code => params[:code]) # it's possible to load data from facebook by this access_token.token
    info = client.me.info

    current_user = User.find_by_fb_user_id(info["id"])
    if current_user
       session[:user_id]  = current_user.id
    else
      current_user = User.new(
        :name => info["name"],
        :login => info["name"].downcase.gsub(" ","_"),
        :password => "", :email => "",
        :fb_user_id => info["id"],
        :portal_id => @portal.id,
        :original_potal_id => @portal.id)
      if current_user.save
        session[:user_id] = current_user.id
      end
    end
    redirect "/home"
  end

locations.haml

- content_for(:title) do
  #{t 'nav.contacts'} - #{t 'nav.company'}
- content_for(:updated_at) do
  =@updated_at
%h1= t 'nav.contacts'
%article#contacts
  %div.column
    -@locations.each do |location|
      %h2=location.city
      %ul.vcard
        %li.org.fn{:style => "display:none"}=t('main.company_full')
        %li.adr.work
          %span.street-address=location.address
        %li.adr.work
          %span.postal-code=location.post_code
          %span.locality=location.city
          %span.country-name{:style => "display:none"}=location.country
        %li
          %span.field_name=t('vcard.phone')
          %a.tel.work{:href => "tel:#{location.phone}"}=phone_format(location.phone)
        %li.tel.work
          %span.field_name.type="Fax"
          %a.tel.work{:href => "tel:#{location.fax}"}=phone_format(location.fax)
        %li
          %span.field_name=t('vcard.email')
          %a.email{:href => "mailto:#{location.email}"}=location.email
  %div.column
    %h2="form.contact.header"
    -form_tag '/contacts', :class => 'contact-form', :id => "contact-form",  :method => 'post' do
      %ul.mail
        %li=text_field_tag :name, :placeholder => t('contact.name')
        %li=text_field_tag :email,:placeholder => t('contact.email')
        %li=text_area_tag :body,:placeholder => t('contact.body')
        %li=submit_tag t("contact.send")
~