before filter example

home_controller.rb

class HomeController < ApplicationController
  
  layout 'login'
  before_filter :actions_if_signed_in

  def index
  end

  def blocked
  end

  def invalid
  end
  
  private
  
    def actions_if_signed_in
      if signed_in?
        redirect_to dashboard_index_path
      end
    end

end