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Delete existing layer before writing to disk

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git-svn-id: http://svn.osgeo.org/qgis/trunk@10102 c8812cc2-4d05-0410-92ff-de0c093fc19c
This commit is contained in:
cfarmer 2009-02-03 23:06:44 +00:00
parent 792862baa3
commit 593a64ed6c
1 changed files with 5 additions and 0 deletions
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5
python/plugins/fTools/tools/doGeoprocessing.py
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@ -139,6 +139,11 @@ class GeoprocessingDialog( QDialog, Ui_Dialog ):
#8: Clip
def geoprocessing( self, myLayerA, myLayerB, myParam, myMerge ):
check = QFile( self.shapefileName )
if check.exists():
if not QgsVectorFileWriter.deleteShapeFile( self.shapefileName ):
QMessageBox.warning( self, "Geoprocessing", self.tr( "Unable to delete existing shapefile." ) )
return
self.testThread = geoprocessingThread( self.iface.mainWindow(), self, self.myFunction, myLayerA,
myLayerB, myParam, myMerge, self.shapefileName, self.encoding )
QObject.connect( self.testThread, SIGNAL( "runFinished(PyQt_PyObject)" ), self.runFinishedFromThread )