add layer scope in context to evaluate the constraint expression

pblottiere · pblottiere · commit 6489b62b4a0a · 2016-05-31T20:16:22.000+02:00
diff --git a/src/gui/editorwidgets/core/qgseditorwidgetwrapper.cpp b/src/gui/editorwidgets/core/qgseditorwidgetwrapper.cpp
@@ -114,6 +114,7 @@ void QgsEditorWidgetWrapper::updateConstraint( const QgsFeature &ft )
   {
     QgsExpressionContext context =
       QgsExpressionContextUtils::createFeatureBasedContext( ft, *ft.fields() );
+    context << QgsExpressionContextUtils::layerScope( layer() );
 
     context.setFeature( ft );
     QgsExpression expr( expression );

Original file line number	Diff line number	Diff line change
`@@ -114,6 +114,7 @@ void QgsEditorWidgetWrapper::updateConstraint( const QgsFeature &ft )`
`114`	`114`	`{`
`115`	`115`	`QgsExpressionContext context =`
`116`	`116`	`QgsExpressionContextUtils::createFeatureBasedContext( ft, *ft.fields() );`
	`117`	`+ context << QgsExpressionContextUtils::layerScope( layer() );`
`117`	`118`
`118`	`119`	`context.setFeature( ft );`
`119`	`120`	`QgsExpression expr( expression );`