Marco, Just added a section for it.
- Nathan On Tue, Jul 10, 2012 at 9:19 PM, Marco Hugentobler <marco.hugentob...@sourcepole.ch> wrote: > Hi Nathan > > Could you add an entry to > http://hub.qgis.org/wiki/quantum-gis/API_changes_for_version_20 ? > > Regards, > Marco > > Am 10.07.2012 13:07, schrieb Nathan Woodrow: >> >> Hey All, >> >> This is a just a quick email to let everyone know that I have changed >> the way that arguments are passed to a layers Init Python function. >> That is the option that you find in the Layer Properties dialog on the >> General tab. If you are using this then this will affect you and you >> will know what I'm talking about. >> >> I have changed it so that the reference to the layer and feature are >> now passed into the function rather then just ids. The issue with >> just passing the feature id was that you couldn't get access to the >> new feature and geometry because you were given a 0 as the id and 0 is >> a valid id for already existing feature. >> >> So now instead of this: >> >> def myFunction(dialog, layer_id, feature_id) >> >> where layer_id and feature_id are integers. You now do this: >> >> def myFunction(dialog, layer, feature) >> >> layer is a instance of QgsVectorLayer >> feature is a instance of QgsFeature >> >> You can now do things like: >> >> def myFunction(dialog, layer, feature): >> id = layer.id() >> name = layer.name() >> geom = feature.geometry() >> geom.length() >> # etc >> >> This change will break your custom form logic if your code is >> expecting a interger for the feature argument but you get a QgsFeature >> >> Just a FYI so you don't freak out when you form logic doesn't work >> anymore. >> >> - Nathan >> _______________________________________________ >> Qgis-developer mailing list >> Qgis-developer@lists.osgeo.org >> http://lists.osgeo.org/mailman/listinfo/qgis-developer > > > > -- > Dr. Marco Hugentobler > Sourcepole - Linux & Open Source Solutions > Weberstrasse 5, CH-8004 Zürich, Switzerland > marco.hugentob...@sourcepole.ch http://www.sourcepole.ch > Technical Advisor QGIS Project Steering Committee > > > _______________________________________________ > Qgis-developer mailing list > Qgis-developer@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/qgis-developer _______________________________________________ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer