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Fix error in Geometry by Expression

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We can't depend on preparing the expression, as we may not have
enough context to do this during the algorithm preparation step
This commit is contained in:
Nyall Dawson 2017-11-22 16:46:39 +10:00
parent 59d55fc44c
commit 8775aff71b
1 changed files with 1 additions and 5 deletions
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6
python/plugins/processing/algs/qgis/GeometryByExpression.py
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@ -94,11 +94,7 @@ class GeometryByExpression(QgisFeatureBasedAlgorithm):
return False
self.expression_context = self.createExpressionContext(parameters, context)
if not self.expression.prepare(self.expression_context):
feedback.reportErro(
self.tr('Evaluation error: {0}').format(self.expression.evalErrorString()))
return False
self.expression.prepare(self.expression_context)
return True