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

[Mike Flannigan]

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>
> To: Olivier Dalang<olivier.dalang at gmail.com>, qgis-user
> 	<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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