[QGIS-Developer] How to transfer data between QGIS Python plugins?

[Zac Wang]

Hi guys,

Thank you for all your replies.

'qgis.utils.plugins' really resolves my problem.

This issue obsessed me for a few days, and your advice is fantastic.

I can't understand why there is no documentation for such a useful
functionality.

Anyway, thank you for your help. Appreciate it.


Cheers,

Zac


On Thu, 22 Apr 2021 at 22:01, Raymond Nijssen <r.nijssen at terglobo.nl> wrote:

> Hi Zac,
>
> You can use:
>
> qgis.utils.plugins
>
> to get a dictionary with all active plugins.
>
>
>
> To find out if another plugin is available:
>
> 'processing' in qgis.utils.plugins
>
>
>
> And use it like:
>
> processing_pl = qgis.utils.plugins['processing']
> processing_pl.toolbox.searchBox.setText('overlay')
>
>
> Hope this helps,
>
> Raymond
>
>
> On 22-04-2021 13:07, Zac Wang wrote:
> > Hi all,
> >
> > Are there some ways to transfer data between different pyqgis plugins? I
> > hope plugins share state.
> >
> > The only way I found is to make pluginA to be a child component of
> > QgisApp(iface.mainWindow()).
> >
> > Then in another pluginB, call findChild() to get the object(pluginA) and
> > connect its signal.
> >
> > This is a possible solution, but it's not easy to maintain because
> > plugins are not initiated in the same file.
> >
> > Is there a better solution?
> >
> > Regards,
> >
> > Zac
> >
> > _______________________________________________
> > QGIS-Developer mailing list
> > QGIS-Developer at lists.osgeo.org
> > List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer
> > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer
> >
> _______________________________________________
> QGIS-Developer mailing list
> QGIS-Developer at lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/qgis-developer/attachments/20210422/13b3a440/attachment-0001.html>