Cookieの有効期限を延ばす/セッションを無効にする - so whatCookieの有効期限を延ばす class ApplicationController < ActionController::Base ... after_filter :set_session_expires ... private def set_session_expires cgi = request.instance_variable_get(:@cgi) output_cookies = cgi.instance_variable_get(:@output_cookies) if output_cookies and (cookie = output_cookies.first) cookie.expires = Time.now + 1.month end end ... end セッションを無効にする session#deleteは実装依存のよう。mem_cache_st
