Show a preview string for intervals in expression builder

nyalldawson · nyalldawson · commit 1d1546ffb8da · 2015-12-03T13:45:12.000+11:00
diff --git a/src/gui/qgsexpressionbuilderwidget.cpp b/src/gui/qgsexpressionbuilderwidget.cpp
@@ -615,6 +615,12 @@ QString QgsExpressionBuilderWidget::formatPreviewString( const QVariant& value )
     QgsFeature feat = value.value<QgsFeature>();
     return tr( "<i>&lt;feature: %1&gt;</i>" ).arg( feat.id() );
   }
+  else if ( value.canConvert< QgsExpression::Interval >() )
+  {
+    //result is a feature
+    QgsExpression::Interval interval = value.value<QgsExpression::Interval>();
+    return tr( "<i>&lt;interval: %1 days&gt;</i>" ).arg( interval.days() );
+  }
   else
   {
     QString previewString = value.toString();

Original file line number	Diff line number	Diff line change
`@@ -615,6 +615,12 @@ QString QgsExpressionBuilderWidget::formatPreviewString( const QVariant& value )`
`615`	`615`	`QgsFeature feat = value.value<QgsFeature>();`
`616`	`616`	`return tr( "<i><feature: %1></i>" ).arg( feat.id() );`
`617`	`617`	`}`
	`618`	`+ else if ( value.canConvert< QgsExpression::Interval >() )`
	`619`	`+ {`
	`620`	`+ //result is a feature`
	`621`	`+ QgsExpression::Interval interval = value.value<QgsExpression::Interval>();`
	`622`	`+ return tr( "<i><interval: %1 days></i>" ).arg( interval.days() );`
	`623`	`+ }`
`618`	`624`	`else`
`619`	`625`	`{`
`620`	`626`	`QString previewString = value.toString();`