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[processing] prevent division by zero in save selected features

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algorithm (fix #16431)
This commit is contained in:
Alexander Bruy 2017-04-27 10:54:07 +03:00
parent 459f4868aa
commit 1ac053fc26
1 changed files with 6 additions and 2 deletions
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8
python/plugins/processing/algs/qgis/SaveSelectedFeatures.py
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@ -25,8 +25,9 @@ __copyright__ = '(C) 2012, Victor Olaya'
__revision__ = '$Format:%H$' __revision__ = '$Format:%H$'
from qgis.core import (QgsApplication) from qgis.core import QgsApplication
from processing.core.GeoAlgorithm import GeoAlgorithm from processing.core.GeoAlgorithm import GeoAlgorithm
from processing.core.GeoAlgorithmExecutionException import GeoAlgorithmExecutionException
from processing.core.parameters import ParameterVector from processing.core.parameters import ParameterVector
from processing.core.outputs import OutputVector from processing.core.outputs import OutputVector
from processing.tools import dataobjects from processing.tools import dataobjects
@ -68,7 +69,10 @@ class SaveSelectedFeatures(GeoAlgorithm):
writer = output.getVectorWriter(vectorLayer.fields(), vectorLayer.wkbType(), vectorLayer.crs(), context) writer = output.getVectorWriter(vectorLayer.fields(), vectorLayer.wkbType(), vectorLayer.crs(), context)
features = vectorLayer.getSelectedFeatures() features = vectorLayer.getSelectedFeatures()
total = 100.0 / int(vectorLayer.selectedFeatureCount()) if len(features) == 0:
raise GeoAlgorithmExecutionException(self.tr('There are no selected features in the input layer.'))
total = 100.0 / len(features)
for current, feat in enumerate(features): for current, feat in enumerate(features):
writer.addFeature(feat) writer.addFeature(feat)
feedback.setProgress(int(current * total)) feedback.setProgress(int(current * total))