sales_order_shipment_track_save_after get order ID

Question

I want to integrate sms trigger on sales_order_shipment_track_save_after event. I have created a custom module and the trigger is being called but I am not able to get orderid from shipment. Following is the code from my observer.

$shipment = $observer->getEvent()->getShipment();
        $order = $shipment->getOrder();
        $orderId = $order->getIncrementId();

but I keep on getting

Fatal error: Call to a member function getOrder() on a non-object in C:\xampp\htdocs\company\app\code\local\Company\Smstrigger\Model\Observer.php on line 11

can someone please point me to correct code for the same.

Magento version 1.9

Answer 1

Try this one. Shipment object is in track key.

  $event = $observer->getEvent();
  $track = $event->getTrack();
  $shipment = $track->getShipment();
  $order = $shipment->getOrder();