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Fix QgsExpressionNodeColumnRef::prepareNode

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Look also for the attribute in the feature, as it is done by evalNode()
This commit is contained in:
Hugo Mercier 2019-02-13 14:26:40 +01:00
parent 809196693c
commit ee980ca06f
1 changed files with 6 additions and 4 deletions
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10
src/core/expression/qgsexpressionnodeimpl.cpp
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@ -1261,16 +1261,18 @@ bool QgsExpressionNodeColumnRef::prepareNode( QgsExpression *parent, const QgsEx
QgsFields fields = qvariant_cast<QgsFields>( context->variable( QgsExpressionContext::EXPR_FIELDS ) );
mIndex = fields.lookupField( mName );
if ( mIndex >= 0 )
if ( mIndex == -1 && context->hasFeature() )
{
return true;
mIndex = context->feature().fieldNameIndex( mName );
}
else
if ( mIndex == -1 )
{
parent->setEvalErrorString( tr( "Column '%1' not found" ).arg( mName ) );
mIndex = -1;
return false;
}
return true;
}
QString QgsExpressionNodeColumnRef::dump() const