public function setSingleAddress()
{
$f = new ARUpdateFilter(new EqualsCond(new ARFieldHandle('OrderedItem', 'customerOrderID'), $this->order->getID()));
$f->addModifier('OrderedItem.shipmentID', new ARExpressionHandle('NULL'));
ActiveRecordModel::updateRecordSet('OrderedItem', $f);
$this->order->isMultiAddress->set(false);
$this->order->loadAll();
$this->order->mergeItems();
$this->order->resetShipments();
SessionOrder::save($this->order);
$this->order->deleteRelatedRecordSet('Shipment');
return new ActionRedirectResponse('order', 'index');
}
