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[processing] Fix string escaping when converting models to python code

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with expression parameters

Fixes #32451
This commit is contained in:
Nyall Dawson 2019-10-29 14:11:17 +10:00
parent 328f365b16
commit e3eb4f54ab
2 changed files with 4 additions and 1 deletions
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2
src/core/processing/models/qgsprocessingmodelchildparametersource.cpp
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@ -169,7 +169,7 @@ QString QgsProcessingModelChildParameterSource::asPythonCode( const QgsProcessin
}
case Expression:
return QStringLiteral( "QgsExpression('%1').evaluate()" ).arg( mExpression );
return QStringLiteral( "QgsExpression(%1).evaluate()" ).arg( QgsProcessingUtils::stringToPythonLiteral( mExpression ) );
case ExpressionText:
return mExpressionText;

3
tests/src/analysis/testqgsprocessing.cpp
View File

@ -6894,6 +6894,9 @@ void TestQgsProcessing::modelerAlgorithm()
expSource.setExpression( "1+3" );
QCOMPARE( expSource.expression(), QStringLiteral( "1+3" ) );
QCOMPARE( expSource.asPythonCode( QgsProcessing::PythonQgsProcessingAlgorithmSubclass, nullptr, friendlyNames ), QStringLiteral( "QgsExpression('1+3').evaluate()" ) );
expSource.setExpression( "'a' || 'b\\'c'" );
QCOMPARE( expSource.expression(), QStringLiteral( "'a' || 'b\\'c'" ) );
QCOMPARE( expSource.asPythonCode( QgsProcessing::PythonQgsProcessingAlgorithmSubclass, nullptr, friendlyNames ), QStringLiteral( "QgsExpression('\\'a\\' || \\'b\\\\\\'c\\'').evaluate()" ) );
expSource = QgsProcessingModelChildParameterSource::fromStaticValue( 5 );
// check that calling setExpression flips source to Expression
QCOMPARE( expSource.source(), QgsProcessingModelChildParameterSource::StaticValue );