# From http://www.jarrodspillers.com/2010/02/06/trying-to-use-rails-csrf-protection-on-cached-actions-rack-middleware-to-the-rescue/
# Updated for rails 3.1
module ActionView
  module Helpers
    module FormTagHelper
      alias_method :token_tag_rails, :token_tag

      def token_tag(token)
        if token == false || !protect_against_forgery?
          ''
        else
          token = form_authenticity_token if token.nil?
          tag(:input, :type => "hidden", :name => request_forgery_protection_token.to_s, :value => ApplicationController::TOKEN_PLACEHOLDER)
        end
      end
    end
  end
end