gistfile1.txt

class Ability
  include CanCan::Ability
  
  def initialize(user)
  
    if user.beta_approved
      can :view, :site
    end
  
  end
  
end

class ApplicationController < ActionController::Base

  before_filter :check_permissions
  
  def check_permissions
    redirect_to root_path unless can?(:view, :site)
  end

end