fix #5481

Author: jef-n

src/gui/qgsnewvectorlayerdialog.cpp

@@ -286,7 +286,10 @@ QString QgsNewVectorLayerDialog::runAndCreateLayer( QWidget* parent, QString* pE
       if ( geometrytype != QGis::WKBUnknown )
       {
         QgsCoordinateReferenceSystem srs( crsId, QgsCoordinateReferenceSystem::InternalCrsId );
-        createEmptyDataSource( fileName, fileformat, enc, geometrytype, attributes, &srs );
+        if ( !createEmptyDataSource( fileName, fileformat, enc, geometrytype, attributes, &srs ) )
+        {
+          return QString();
+        }
       }
       else
       {

src/providers/ogr/qgsogrprovider.cpp

@@ -1943,6 +1943,7 @@ QGISEXTERN bool createEmptyDataSource( const QString &uri,
   {
     if ( !uri.endsWith( ".shp", Qt::CaseInsensitive ) )
     {
+      QgsDebugMsg( QString( "uri %1 doesn't end with .shp" ).arg( uri ) );
       return false;
     }
 
@@ -1971,6 +1972,7 @@ QGISEXTERN bool createEmptyDataSource( const QString &uri,
   dataSource = OGR_Dr_CreateDataSource( driver, TO8F( uri ), NULL );
   if ( !dataSource )
   {
+    QgsMessageLog::logMessage( QObject::tr( "Creating the data source %1 failed: %2" ).arg( uri ).arg( QString::fromUtf8( CPLGetLastErrorMsg() ) ), QObject::tr( "OGR" ) );
     return false;
   }
 
@@ -2028,6 +2030,7 @@ QGISEXTERN bool createEmptyDataSource( const QString &uri,
   layer = OGR_DS_CreateLayer( dataSource, TO8F( QFileInfo( uri ).completeBaseName() ), reference, OGRvectortype, NULL );
   if ( !layer )
   {
+    QgsMessageLog::logMessage( QObject::tr( "Creation of OGR data source %1 failed: %2" ).arg( uri ).arg( QString::fromUtf8( CPLGetLastErrorMsg() ) ), QObject::tr( "OGR" ) );
     return false;
   }
 
@@ -2041,7 +2044,6 @@ QGISEXTERN bool createEmptyDataSource( const QString &uri,
     Q_ASSERT( codec );
   }
 
-
   for ( std::list<std::pair<QString, QString> >::const_iterator it = attributes.begin(); it != attributes.end(); ++it )
   {
     QStringList fields = it->second.split( ";" );