Super, thx Marco Bernasocchi (mobile) http://opengis.ch On Jul 10, 2012 1:07 PM, "Nathan Woodrow" <madman...@gmail.com> wrote:
> 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 >
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