Notifications could be done by view-template panels that update system
status (and perhaps nothing by default).Start reading:
http://en.wikipedia.org/wiki/Push_technology


2009/4/14 notabene <niels...@gmail.com>

>
> Hint
>
> You could save session-records to the database and se who has recently
> started a session (Modified Datetime). But it is difficult to notify
> the user - except when he calls a controller/function.
>
> On Apr 14, 9:40 am, Marco Prosperi <marcoprosperi...@gmail.com> wrote:
> > hi all, how can I verify if there are users currently connected to my
> > web2py application? I just want to know if there is at least one. The
> > evolution of this question could be: how could I notify my app's users
> > that I will stop the application for maintenance?
> >
> > thanks for hints,
> > Marco
> >
>

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