Hey Ricardo! Thanks very much for this and apologies for my tardy reply. I
got pulled away onto other things and just now got back to testing it. It
works beautifully.
On Saturday, March 16, 2013 10:16:28 PM UTC-4, Ricardo Pedroso wrote:
>
> On Sat, Mar 16, 2013 at 10:42 PM, Michael Ellis
> <michael...@gmail.com <javascript:>> wrote:
> > I've got an application that accepts JSON test reports from remote
> systems
> > and displays them in a SQLFORM grid with the most recent reports first.
> The
> > controller and view for what the user sees is essentially the following:
> >
> > CONTROLLER
> > def test_report_manage():
> > """ Controller for Reports page """
> > ...
> > form = SQLFORM.grid( ... )
> > return locals()
> >
> > VIEW
> > ...
> > {=form}
> > ...
> >
> > The JSON controller is separate from the above. It merely validates and
> > inserts new report records. The reports arrive at random intervals. My
> > client has asked for the page to automatically update when new reports
> > arrive. What's the cleanest way to go about this, bearing in mind that
> this
> > functionality is mainly intended for demonstration purposes at a trade
> show?
> >
>
> The easiest way is to poll. Something like this:
>
> ==== controllers ======
>
> def test_report_manage():
> """ Controller for Reports page """
> ...
> return dict(poll_interval=2000) # poll at 2 secs intervals
> # if None, don't poll
>
> def test_report_manage_poll():
> form = SQLFORM.grid( ... )
> return form
>
>
> ==== view for test_report_manage controller) =====
>
> <p>
> <a href="#" class="btn btn-small btn-success"
> onclick="refresh_grid();return false"><i
> class="icon-refresh icon-white"></i>Refresh</a>
> </p>
>
> {{ =LOAD(f='test_report_manage_poll', ajax=False, ajax_trap=True,
> target="grid_component") }}
>
> <script>
> var refresh_grid = function() {
> web2py_component("{{ =URL(f='test_report_manage_poll')
> }}","grid_component");
> }
>
> $(document).ready(function() {
> {{ if poll_interval is not None: }}
> setInterval(refresh_grid, {{ =poll_interval }});
> {{ pass }}
> });
> </script>
>
> Regards
> Ricardo
>
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