[Qgis-developer] Changing the Filter of an existing layer

[Anita Graser]

Hi Andreas,

layer.setSubsetString( subsetString ) seems the way to go. At least that's
what I use in Time Manager ;)

Best wishes,
Anita


On Wed, Jun 20, 2012 at 4:49 PM, Andreas Neumann <a.neumann at carto.net>wrote:

> Hi,
>
> For an existing layer I would like to add/change/remove the WHERE filter
> by script - the same that one would normally set by the query builder.
>
> Do I need to change the QgsDataSourceURI() of that QgsVectorLayer and then
> reload it or is there an easier/more elegant way to change the filter of an
> existing layer?
>
> Thanks if you have any ideas or even sample code on how to achieve this.
>
> Andreas
>
> --
> --
> Andreas Neumann
> Böschacherstrasse 10A
> 8624 Grüt (Gossau ZH)
> Switzerland
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