class LocaleController < ApplicationController def set if request.referer && request.referer.starts_with?('http://' + request.host) session['return_to'] = request.referer end if params[:locale] && I18n.available_locales.include?(params[:locale].to_sym) session[:locale] = I18n.locale = params[:locale].to_sym flash.notice = t(:locale_changed) else flash[:error] = t(:locale_not_changed) end redirect_back_or_default(root_path) end end