[Qgis-developer] Pyqgis 2.2 : get signal on feature added + zoom to layer extent?

[dandrigo]

Hello,

1/ For my pyqgis plugin 2.2, i try to 
-----------------------------------------------------------------------
def logFeatureAdded(self,layerId,addfeatures):
		message = str(layerId) + " has features added: "
		for feature in addedFeatures:
			message += str( feature.id() ) + ", "
		QgsMessageLog.logMessage(message)
		QApplication.beep() 
------------------------------------------------------------------------

When i try to add a feature, this following error message appears: 

/TypeError : logFeaturesAdded() takes exactly 3 arguments (2 given). /

2/ Always for my plugin, i can load a vector layer succesfully. But when i
try to zoom to the layer extent. But it does not work. How to do in order to
zoom to the layer extent? 



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