[Qgis-user] Automatically force reload layer from source (geojson)

[Olivier Dalang]

Hah !! Indeed ! F5 works as you say... No idea how I missed this !

Thanks !! :-)

However, geojsons don't update here (win 10) without F5, even when panning.
It would be nice to be able to disable cache completely per layer, and/or
allow to have "refresh layer at interval" also reload from source. What do
you think? Should I open a feature request ?

Cheers,

Olivier



On Fri, 22 Nov 2019 at 23:32, Mike Flannigan <mikeflan at att.net> wrote:

>
> That is correct.  On Win7 I just zoomed in or out
> after the file was revised and it updated to the
> new geoj immediately.  I did not try F5, but that
> should work also.
>
> I am now on Linux Mint.  Let me know if you want
> me to check it on this system.
>
>
> Mike
>
>
> On 11/22/19 2:00 PM, qgis-user-request at lists.osgeo.org wrote:
>
> Date: Fri, 22 Nov 2019 14:38:33 +0100
> From: Richard Duivenvoorde <rdmailings at duif.net> <rdmailings at duif.net>
> To: Olivier Dalang <olivier.dalang at gmail.com> <olivier.dalang at gmail.com>, qgis-user
> 	<qgis-user at lists.osgeo.org> <qgis-user at lists.osgeo.org>
> Subject: Re: [Qgis-user] Automatically force reload layer from source
> 	(geojson)
>
>
> Hi Olivier,
>
> Does F5 (refresh, from menu 'View/Refresh') not work?
>
> I thought that when I had an (live changing) online geojson source, (and
> added as url), I could easily 'reload' fresh data via F5
>
> Not working for you?
>
> Regards,
>
> Richard Duivenvoorde
>
>
>
> On 22/11/2019 14.12, Olivier Dalang wrote:
>
> Dear list,
>
> Currently, when I load a geojson into QGIS, and modify the geojson file
> using an other software, the change isn't reflected in QGIS. The only
> way to reflect the change is to re-add the layer, or to run
> `iface.activeLayer().dataProvider().forceReload()` in the python console.
>
> I see could find neither a button or menu to trigger a reload manually,
> nor the option to do it automatically, nor a way to disable caching of
> such layers (which anyway would be suitable for very small layers only).
>
> Ideally, I was looking for an option like the "refresh layer at
> interval" options from the layer properties>rendering dialog (that
> option seems to just re-render the file, without reloading it, so that
> it doesn't work for my purpose).
>
> Thanks !
>
> Olivier
>
>
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