orbit4-5/app/controllers/application_controller.rb

class ApplicationController < ActionController::Base
  # Prevent CSRF attacks by raising an exception.
  # For APIs, you may want to use :null_session instead.
  protect_from_forgery with: :exception
  before_action :set_locale
  helper_method :current_site, :current_user

  def default_url_options(options={})
   { locale: I18n.locale }
  end

  def set_locale
    in_use_locales = current_site.in_use_locales

    if params[:locale]
      session[:locale] = in_use_locales.include?(params[:locale].to_sym) ? params[:locale] : nil
    end

    if !params[:locale] and !session[:locale]
      if current_site.enable_language_detection
        browser_locale = request.env['HTTP_ACCEPT_LANGUAGE'].split(',').first.underscore rescue nil
        session[:locale] = in_use_locales.include?(browser_locale.to_sym) ? browser_locale : nil
      elsif current_site.default_locale
        session[:locale] = current_site.default_locale
      end 
    end

    session[:locale] = session[:locale].blank? ? I18n.default_locale : session[:locale]

    I18n.locale = session[:locale]
  end

  def get_layout
    f = File.join("../../templates/", "#{@key}", '/home/page.html.erb')
  end

  def get_key
    @key = Template::KEY
  end

  def current_site
    @current_site = Site.first
  end

  private

  def current_user
    @current_user ||= User.find(session[:user_id]) if session[:user_id] rescue nil
  end

  protected 

  def authenticate_user
    if session[:user_id]
      # set current user object to @current_user object variable
      @current_user = User.find(session[:user_id]) rescue nil
      
      redirect_to new_session_path if @current_user.nil?
      return true
    else
      redirect_to new_session_path
      return false
    end
  end
end