How to I dynamically set the expiry time for a cookie-based session in Rails

Question

I\'m currently using the ActiveRecord-based session store for my Rails app and I have a background process which clears out inactive sessions every 30 minutes.

I\'d like

Answer 1

After a lot of pain & experimenting, found in Rails 3.x, you need to set your custom session parameters in an after filter in every request

    class ApplicationController < ActionController::Base

      after_filter :short_session

      ...

      def short_session
        request.session_options = request.session_options.dup
        request.session_options[:expire_after] = 1.minute
        request.session_options.freeze
      end