How do I programmatically update the order status?

Question

After Payment is accepted, I need to update the order status to "Completed" from the page controller.

How do I do this, on Drupal 8?

I find no documentation about this; there is an example for Drupal 7.

// Updating Order status.
$orderObj = commerce_order_load($orderID);
commerce_order_status_update($orderObj, 'canceled', TRUE, 'Order Voided');
$orderObj->log = 'Order cancelled programatically';
commerce_order_save($orderObj); 

Answer 1

You want to use the State Machine methods of the Commerce Order class.

It would be something like this, but it will depend on what you called your order states.

$order_state = $orderObj->getState();
$order_state_transitions = $order_state->getTransitions();
$order_state->applyTransition($order_state_transitions['complete']);

$orderObj->save();

If you aren't sure, you can always check the $order_state_transitions array to see what options you have.

Answer 2

I think you are looking to "place" the order. You need to subscribe to the Event handler for this event: commerce_order.order.paid

and with this handler code:

  public function paymentCompletedHandler($event) {
    $order = $event->getOrder();
    $order->getState()->applyTransitionById('place');
    return;
  }

Answer 3

This code did the job for me. You need to know the ID of the transition. In my case, it's 'cancel'

$order = \Drupal\commerce_order\Entity\Order::load($order_id);
$order_state = $order->getState();
$order_state->applyTransitionById('cancel');
$order->save();

Answer 4

You can simply use set method.

$order->set('state', 'completed');
$order->save();