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Create proper expression context

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This commit is contained in:
Matthias Kuhn 2018-04-06 15:58:53 +02:00
parent 69d77a7838
commit 0204e446f9
1 changed files with 2 additions and 2 deletions
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4
src/analysis/processing/qgsalgorithmfilter.cpp
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@ -84,11 +84,11 @@ void QgsFilterAlgorithm::initAlgorithm( const QVariantMap &configuration )
QVariantMap QgsFilterAlgorithm::processAlgorithm( const QVariantMap &parameters, QgsProcessingContext &context, QgsProcessingFeedback *feedback )
{
std::unique_ptr< QgsFeatureSource > source( parameterAsSource( parameters, QStringLiteral( "INPUT" ), context ) );
std::unique_ptr< QgsProcessingFeatureSource > source( parameterAsSource( parameters, QStringLiteral( "INPUT" ), context ) );
if ( !source )
return QVariantMap();
QgsExpressionContext expressionContext = context.expressionContext();
QgsExpressionContext expressionContext = createExpressionContext( parameters, context, source.get() );
for ( Output *output : qgis::as_const( mOutputs ) )
{
output->sink.reset( parameterAsSink( parameters, output->name, context, output->destinationIdentifier, source->fields(), source->wkbType(), source->sourceCrs() ) );