Have you looked at Comet? http://en.wikipedia.org/wiki/Comet_(programming)
Do a quick search for Comet and Ruby - a few of the results point to
Juggernaut, a Rails plugin that implements Comet:
1. http://ajaxian.com/archives/juggernaut-comet-for-rails
2. http://dineshakadinks.blogspot.com/2008/03/comet-ruby-on-rails.html
Good luck. Summarize back what you find if you get a chance.
-- Bosco
On Jan 24, 9:53 am, jayhalleaux
<jay.halle...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> I am trying to make a multi-user DB application. My question is how
> do I keep the multiple users'' browser view in sync when a user
updates
> the database? I want to avoid polling the server client-side to see
> if it has been updated. Is there any way the server can push a
> notification to all the other clients that the database has been
> updated and that it needs to refresh the data (I refresh will be done
> via AJAX so I can avoid a hard refresh).
>
> My problem:
> User A logs in and viewing table A.
> User B logs in and viewing table A.
> User C logs in and viewing table B.
>
> User A updates table A.
> User B viewing old table A.
> User C still viewing table B.
>
> Solution I want:
> User A updates table A.
> User B viewing updated table A. (push notification received and table
> is updated)
> User C still viewing table B. (push notification ignored)
>
> Any help would be appreciated.
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