Safety check for expression initialized

fixes #40762
qgis · Dec 28, 2020 · 6d28490e272744ebafdcf7080d4fe1d789cc47e4 · 6d28490
1 parent 14136a1
commit 6d28490e272744ebafdcf7080d4fe1d789cc47e4
Unified Split

Showing with 2 additions and 2 deletions.

+2 −2 src/core/symbology/qgsgraduatedsymbolrenderer.cpp
diff --git a/src/core/symbology/qgsgraduatedsymbolrenderer.cpp b/src/core/symbology/qgsgraduatedsymbolrenderer.cpp
@@ -133,13 +133,13 @@ QVariant QgsGraduatedSymbolRenderer::valueForFeature( const QgsFeature &feature,
 {
   QgsAttributes attrs = feature.attributes();
   QVariant value;
-  if ( mAttrNum < 0 || mAttrNum >= attrs.count() )
+  if ( mExpression )
   {
     value = mExpression->evaluate( &context.expressionContext() );
   }
   else
   {
-    value = attrs.at( mAttrNum );
+    value = attrs.value( mAttrNum );
   }
 
   return value;