[Qgis-developer] best to add a feature on a layer (+ crash)

[Nathan Woodrow]

Denis,

You didn't tell QgsFeature how many attributes it has.  You can call
initAttributes(1) or pass in the QgsFields into QgsFeature(fields)

- Nathan


On Wed, Apr 3, 2013 at 3:42 PM, Denis Rouzaud <denis.rouzaud at gmail.com>wrote:

> Hi all,
>
> I try to add a feature in a layer with only one field (over a few in the
> layer) filled.
>
> Here is what I tried:
>
> f = QgsFeature()
> f.setGeometry(myGeom)
> f.setAttribute(1, myValue)
> provider.addFeatures( [f] )
>
> This causes QGIS to crash.
>
> What did I wrong? I should not set field 1 if there is a field 0 in my
> feature?
> Should I set the same number of fields as present in the layer?
> Is there another way to achieve this?
>
> Thanks a lot,
>
> Denis
>
>
>
>
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