QgsGeometry::OperationResult QgsVectorLayerEditUtils::addPart( QgsCurve *ring, QgsFeatureId featureId )
{
if ( !mLayer->isSpatial() )
return QgsGeometry::AddPartSelectedGeometryNotFound;
QgsGeometry geometry;
bool firstPart = false;
QgsFeature f;
if ( !mLayer->getFeatures( QgsFeatureRequest().setFilterFid( featureId ).setSubsetOfAttributes( QgsAttributeList() ) ).nextFeature( f ) )
return QgsGeometry::AddPartSelectedGeometryNotFound;
if ( !f.hasGeometry() )
{
//no existing geometry, so adding first part to null geometry
firstPart = true;
}
else
{
geometry = f.geometry();
}
QgsGeometry::OperationResult errorCode = geometry.addPart( ring, mLayer->geometryType() );
if ( errorCode == QgsGeometry::Success )
{
if ( firstPart && QgsWkbTypes::isSingleType( mLayer->wkbType() )
&& mLayer->dataProvider()->doesStrictFeatureTypeCheck() )
{
//convert back to single part if required by layer
geometry.convertToSingleType();
}
mLayer->editBuffer()->changeGeometry( featureId, geometry );
}
return errorCode;
}
int QgsVectorLayerEditUtils::addPart( QgsCurveV2* ring, QgsFeatureId featureId )
{
if ( !L->hasGeometryType() )
return 6;
QgsGeometry geometry;
bool firstPart = false;
if ( !cache()->geometry( featureId, geometry ) ) // maybe it's in cache
{
// it's not in cache: let's fetch it from layer
QgsFeature f;
if ( !L->getFeatures( QgsFeatureRequest().setFilterFid( featureId ).setSubsetOfAttributes( QgsAttributeList() ) ).nextFeature( f ) )
return 6; //not found
if ( !f.constGeometry() || f.constGeometry()->isEmpty() )
{
//no existing geometry, so adding first part to null geometry
firstPart = true;
}
else
{
geometry = *f.geometry();
}
}
int errorCode = geometry.addPart( ring, L->geometryType() );
if ( errorCode == 0 )
{
if ( firstPart && QgsWKBTypes::isSingleType( QGis::fromOldWkbType( L->wkbType() ) )
&& L->dataProvider()->doesStrictFeatureTypeCheck() )
{
//convert back to single part if required by layer
geometry.convertToSingleType();
}
L->editBuffer()->changeGeometry( featureId, &geometry );
}
return errorCode;
}