statement_admin/app/controllers/application_controller.rb

# encoding:utf-8
class ApplicationController < ActionController::Base
  protect_from_forgery
  layout :layout_by_resource

  rescue_from CanCan::AccessDenied do |exception|
    redirect_to root_url, :alert => exception.message
  end

  def layout_by_resource
    if devise_controller?
      "devise_layout"
    else
      "application"
    end
  end
end