search for: last_activity_time

I have a basic login system implemented. I''ve recently added a timestamp field "last_activity_time". During the login process, if I successfully get back a user object, I do this: user.update_attribute(:last_activity_time, Time.now()) It appears to be successful given the breadcrumbs I''ve strewn around it, but nothing gets written out to my table. In development.log I see...

My users need to login to run the app I''m building. I''d like to give them an "Other users currently active:" piece of information. I could track it myself in the database based on login/logout, but that doesn''t really count for people just leaving the computer logged in and never coming back. Does Rails have an API for me to monitor sessions and take a