QgsRelation::isValid will return false if layers are deleted

qgis · Aug 24, 2018 · 932e70a · 932e70a
1 parent 86e1382
commit 932e70a
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/core/qgsrelation.cpp b/src/core/qgsrelation.cpp
@@ -326,7 +326,7 @@ QgsAttributeList QgsRelation::referencingFields() const
 
 bool QgsRelation::isValid() const
 {
-  return d->mValid;
+  return d->mValid && d->mReferencingLayer && d->mReferencedLayer;
 }
 
 bool QgsRelation::hasEqualDefinition( const QgsRelation &other ) const