[Ruby] user is online in Rails

[Eric Hodel]

On Dec 6, 2006, at 07:57 , ben wiseley wrote:

> We wanted to have something that showed when someone is online on  
> our site
> (like they do on many of those PHP forums).  How do you pull this  
> off in
> Rails?
>
> In .Net there's a session end event you can work with.
>
> Anything exist like that in Rails?

I would use a memcache key like "user:#{user.id}:last_login" that  
stores a timestamp.  Update the timestamp every time a user hits a  
page.  A user is 'online' if you've seen them in the last N seconds.

-- 
Eric Hodel - drbrain at segment7.net - http://blog.segment7.net

I LIT YOUR GEM ON FIRE!