replace "" by QString()

Author: pblottiere

src/core/qgseditformconfig.cpp

@@ -121,10 +121,10 @@ bool QgsEditFormConfig::labelOnTop( int idx ) const
 
 QString QgsEditFormConfig::expression( int idx ) const
 {
-  QString expr = "";
+  QString expr;
 
   if ( idx >= 0 && idx < mFields.count() )
-    expr = mConstraints.value( mFields.at( idx ).name(), "" );
+    expr = mConstraints.value( mFields.at( idx ).name(), QString() );
 
   return expr;
 }

src/gui/editorwidgets/core/qgseditorwidgetregistry.cpp

@@ -252,7 +252,7 @@ void QgsEditorWidgetRegistry::readMapLayer( QgsMapLayer* mapLayer, const QDomEle
       vectorLayer->editFormConfig()->setReadOnly( idx, ewv2CfgElem.attribute( "fieldEditable", "1" ) != "1" );
       vectorLayer->editFormConfig()->setLabelOnTop( idx, ewv2CfgElem.attribute( "labelOnTop", "0" ) == "1" );
       vectorLayer->editFormConfig()->setNotNull( idx, ewv2CfgElem.attribute( "notNull", "0" ) == "1" );
-      vectorLayer->editFormConfig()->setExpression( idx, ewv2CfgElem.attribute( "constraint", "" ) );
+      vectorLayer->editFormConfig()->setExpression( idx, ewv2CfgElem.attribute( "constraint", QString() ) );
 
       vectorLayer->editFormConfig()->setWidgetConfig( idx, cfg );
     }

src/gui/editorwidgets/core/qgseditorwidgetwrapper.cpp

@@ -98,7 +98,7 @@ void QgsEditorWidgetWrapper::valueChanged()
 void QgsEditorWidgetWrapper::updateConstraintWidgetStatus()
 {
   if ( mValidConstraint )
-    widget()->setStyleSheet( "" );
+    widget()->setStyleSheet( QString() );
   else
     widget()->setStyleSheet( "background-color: #dd7777;" );
 }

src/gui/editorwidgets/qgsexternalresourcewidgetwrapper.cpp

@@ -193,8 +193,8 @@ void QgsExternalResourceWidgetWrapper::updateConstraintWidgetStatus()
   if ( mLineEdit )
   {
     if ( mValidConstraint )
-      mLineEdit->setStyleSheet( "" );
+      mLineEdit->setStyleSheet( QString() );
     else
       mLineEdit->setStyleSheet( "QgsFilterLineEdit { background-color: #dd7777; }" );
   }
-}
+}

src/gui/editorwidgets/qgsfilenamewidgetwrapper.cpp

@@ -157,7 +157,7 @@ void QgsFileNameWidgetWrapper::updateConstraintWidgetStatus()
   if ( mLineEdit )
   {
     if ( mValidConstraint )
-      mLineEdit->setStyleSheet( "" );
+      mLineEdit->setStyleSheet( QString() );
     else
     {
       mLineEdit->setStyleSheet( "QgsFilterLineEdit { background-color: #dd7777; }" );

src/gui/editorwidgets/qgsphotowidgetwrapper.cpp

@@ -272,7 +272,7 @@ void QgsPhotoWidgetWrapper::updateConstraintWidgetStatus()
   if ( mLineEdit )
   {
     if ( mValidConstraint )
-      mLineEdit->setStyleSheet( "" );
+      mLineEdit->setStyleSheet( QString() );
     else
     {
       mLineEdit->setStyleSheet( "QgsFilterLineEdit { background-color: #dd7777; }" );

src/gui/editorwidgets/qgsrelationreferencewidgetwrapper.cpp

@@ -145,8 +145,8 @@ void QgsRelationReferenceWidgetWrapper::updateConstraintWidgetStatus()
   if ( mWidget )
   {
     if ( mValidConstraint )
-      mWidget->setStyleSheet( "" );
+      mWidget->setStyleSheet( QString() );
     else
       mWidget->setStyleSheet( ".QComboBox { background-color: #dd7777; }" );
   }
-}
+}

src/gui/editorwidgets/qgswebviewwidgetwrapper.cpp

@@ -194,10 +194,10 @@ void QgsWebViewWidgetWrapper::updateConstraintWidgetStatus()
   if ( mLineEdit )
   {
     if ( mValidConstraint )
-      mLineEdit->setStyleSheet( "" );
+      mLineEdit->setStyleSheet( QString() );
     else
     {
       mLineEdit->setStyleSheet( "QgsFilterLineEdit { background-color: #dd7777; }" );
     }
   }
-}
+}

tests/src/gui/testqgsattributeform.cpp

@@ -81,7 +81,7 @@ void TestQgsAttributeForm::testFieldConstraint()
   QString invalidLabel = "col0<font color=\"red\">*</font>";
 
   // set constraint
-  layer->editFormConfig()->setExpression( 0, "" );
+  layer->editFormConfig()->setExpression( 0, QString() );
 
   // get wrapper
   QgsEditorWidgetWrapper *ww;
@@ -126,10 +126,10 @@ void TestQgsAttributeForm::testFieldMultiConstraints()
   ft.setAttribute( "col3", 3 );
 
   // set constraints for each field
-  layer->editFormConfig()->setExpression( 0, "" );
-  layer->editFormConfig()->setExpression( 1, "" );
-  layer->editFormConfig()->setExpression( 2, "" );
-  layer->editFormConfig()->setExpression( 3, "" );
+  layer->editFormConfig()->setExpression( 0, QString() );
+  layer->editFormConfig()->setExpression( 1, QString() );
+  layer->editFormConfig()->setExpression( 2, QString() );
+  layer->editFormConfig()->setExpression( 3, QString() );
 
   // build a form for this feature
   QgsAttributeForm form( layer );
@@ -161,8 +161,8 @@ void TestQgsAttributeForm::testFieldMultiConstraints()
 
   // update constraint
   layer->editFormConfig()->setExpression( 0, "col0 < (col1 * col2)" );
-  layer->editFormConfig()->setExpression( 1, "" );
-  layer->editFormConfig()->setExpression( 2, "" );
+  layer->editFormConfig()->setExpression( 1, QString() );
+  layer->editFormConfig()->setExpression( 2, QString() );
   layer->editFormConfig()->setExpression( 3, "col0 = 2" );
 
   // change value
@@ -212,7 +212,7 @@ void TestQgsAttributeForm::testOKButtonStatus()
   QSignalSpy spy3( layer, SIGNAL( editingStopped() ) );
 
   // set constraint
-  layer->editFormConfig()->setExpression( 0, "" );
+  layer->editFormConfig()->setExpression( 0, QString() );
 
   // no constraint but layer not editable : OK button disabled
   QCOMPARE( layer->isEditable(), false );