Fix NULL vs 0 issue in relation reference widget

m-kuhn · m-kuhn · commit d299c687d54a · 2017-09-29T17:36:35.000+02:00
Fix #16760 https://issues.qgis.org/issues/16760
diff --git a/src/gui/editorwidgets/qgsrelationreferencewidgetwrapper.cpp b/src/gui/editorwidgets/qgsrelationreferencewidgetwrapper.cpp
@@ -121,7 +121,7 @@ void QgsRelationReferenceWidgetWrapper::showIndeterminateState()
 
 void QgsRelationReferenceWidgetWrapper::setValue( const QVariant &val )
 {
-  if ( !mWidget || ( !mIndeterminateState && val == value() ) )
+  if ( !mWidget || ( !mIndeterminateState && val == value() && val.isNull() == value().isNull() ) )
     return;
 
   mIndeterminateState = false;

Original file line number	Diff line number	Diff line change
`@@ -121,7 +121,7 @@ void QgsRelationReferenceWidgetWrapper::showIndeterminateState()`
`121`	`121`
`122`	`122`	`void QgsRelationReferenceWidgetWrapper::setValue( const QVariant &val )`
`123`	`123`	`{`
`124`		`- if ( !mWidget \|\| ( !mIndeterminateState && val == value() ) )`
	`124`	`+ if ( !mWidget \|\| ( !mIndeterminateState && val == value() && val.isNull() == value().isNull() ) )`
`125`	`125`	`return;`
`126`	`126`
`127`	`127`	`mIndeterminateState = false;`