Shipment

shipment.php

<?php
            /** @var $order Mage_Sales_Model_Order */
            $order = Mage::getModel('sales/order');

            $order->load($orderId);

            /** @var $shipment Mage_Sales_Model_Order_Shipment */
            $shipment = Mage::getModel('sales/order_shipment');
            $shipment->setOrder($order);

            foreach($trackingNumbers as $trackingNumber) {
                /** @var $shipmentTrack Mage_Sales_Model_Order_Shipment_Track */
                $shipmentTrack = Mage::getModel('sales/order_shipment_track');
                $shipmentTrack->setCarrierCode('Hega');
                $shipmentTrack->setNumber($trackingNumber);
                $shipmentTrack->save();

                $shipment->addTrack($shipmentTrack);
            }

            $shipment->save();

            $order->setState($afterImportStatus, true, $orderMessage, $isCutomerNotified);
            $order->save();


// I have this error:
/*
SQLSTATE[23000]: Integrity constraint violation: 1452 Cannot add or update a child row: a foreign key constraint fails (`magento`.`sales_flat_shipment_track`, CONSTRAINT `FK_BCD2FA28717D29F37E10A153E6F2F841` FOREIGN KEY (`parent_id`) REFERENCES `sales_flat_shipment` (`entity_id`) ON DELETE CASCADE ON UPDATE CAS)
*/