Using Cookies in a Rails 3.0 Metal Class

I have the following class that works fine as a controller:

class Foo < ApplicationController

def check
unless cookies[:user_id].nil?
logger.info(“Cookies value is : #{cookies[:user_id]}”)
redirect_to “http://www.yahoo.com
else
cookies[:user_id] = { :value => “198”, :expires =>
180.days.from_now }
redirect_to “http://www.google.com
end

end
end

When I try to convert it to Metal : class Foo < ActionController::Metal
it complains about cookies method available I included the following
line:
include ActionController::Session::CookieStore

it still gives me the same error. When the metal class is in the
controller
directory it is at least finding the class. If I move it to lib
directory I
get : uninitialized constant Foo error. I included the line:

require File.expand_path(’…/…/…/config/environment’, FILE)
unless
defined?(Rails)

it still gives the same error.

My questions are:

  1. What do I need to include my metal class in order to use the
    cookies
    method in Rails 3.0 ?
  2. Where should I save my Rails metal app class file? in the
    controllers
    or lib directory?

TIA.