QgsTransaction* QgsTransaction::create( const QStringList& layerIds )
{
if ( layerIds.isEmpty() )
{
return 0;
}
QgsVectorLayer* layer = qobject_cast<QgsVectorLayer*>( QgsMapLayerRegistry::instance()->mapLayer( layerIds.first() ) );
if ( !layer )
{
return 0;
}
QString connStr = QgsDataSourceURI( layer->source() ).connectionInfo();
QString providerKey = layer->dataProvider()->name();
QgsTransaction* ts = QgsTransaction::create( connStr, providerKey );
if ( !ts )
{
return 0;
}
Q_FOREACH ( const QString& layerId, layerIds )
{
if ( !ts->addLayer( layerId ) )
{
delete ts;
return 0;
}
}
return ts;
}
void QgsSpatialQueryDialog::populateCbReferenceLayer()
{
cbReferenceLayer->blockSignals( true );
cbReferenceLayer->clear();
// Populate new values and Set current item keeping the previous value
QString itemText;
QVariant itemData;
QIcon itemIcon;
QgsVectorLayer * lyr = NULL;
int idNew = 0;
for ( int id = 0; id < cbTargetLayer->count(); id++ )
{
itemText = cbTargetLayer->itemText( id );
itemData = cbTargetLayer->itemData( id );
itemIcon = cbTargetLayer->itemIcon( id );
lyr = static_cast<QgsVectorLayer *>( itemData.value<void *>() );
if ( lyr == mLayerTarget )
{
continue;
}
cbReferenceLayer->addItem( itemIcon, itemText, itemData );
cbReferenceLayer->setItemData( idNew, QVariant( lyr->source() ), Qt::ToolTipRole );
idNew++;
}
int idCurrent = getCbIndexLayer( false, mLayerReference );
if ( idCurrent == -1 )
{
idCurrent = 0;
}
cbReferenceLayer->setCurrentIndex( idCurrent );
cbReferenceLayer->blockSignals( false );
} // QgsSpatialQueryDialog::populateCbReferenceLayer()
