Set locale with prefix in URL e.g. http://mysite.com/fi/items

# config/routes.rb:
 
scope "(/:locale)" do
  resources :items
end
 
 
# app/application_controller.rb
 
class ApplicationController < ActionController::Base
  protect_from_forgery
 
  before_filter :set_locale
  def set_locale
    I18n.locale = params[:locale]
  end
 
  def default_url_options(options={})
    {:locale => I18n.locale}
  end
end
 
 
# config/application.rb or config/environments/production.rb:
 
Tassuttelijat::Application.configure do
  config.i18n.default_locale = :fi
end
 
# Make sure the previous lines are before this one:
Tassuttelijat::Application.initialize!