require 'action_dispatch/middleware/session/abstract_store' begin require 'rack/session/dalli' rescue LoadError => e $stderr.puts "You don't have dalli installed in your application. Please add it to your Gemfile and run bundle install" raise e end module ActionDispatch module Session class MemCacheStore < Rack::Session::Dalli include Compatibility include StaleSessionCheck include SessionObject def initialize(app, options = {}) options[:expire_after] ||= options[:expires] super end end end end