I would like to update a custom field, added to my order items, in the price resolver process. The price resolver process do some sort of queries to select the right price and this selection has a key that I want to save in the custom field. I'm not sure how could I alter the order line item after the right price was selected.

  • How are you doing the price resolver? Custom code or contrib module?
    – No Sssweat
    Oct 5, 2020 at 9:48
  • With a custom module. In "resolve" function I calculate de new price and return the new object.
    – briast
    Oct 5, 2020 at 10:47

1 Answer 1


You price resolver should have something like

if (isset($result['price'])) {
    return new Price((string) $result['price'], $context->getStore()->getDefaultCurrencyCode());

Before your price resolver's return line put:

$cart_provider = \Drupal::service('commerce_cart.cart_provider');
$cart = $cart_provider->getCart('default');
$order_items = $cart->order_items->referencedEntities();
foreach ($order_items as $order_item) { 
  if (!empty($order_item->field_custom)) {
    $order_item->field_custom->value = 'Hello World'; // set new value
    $cart_manager = \Drupal::service('commerce_cart.cart_manager');
    $cart_manager->updateOrderItem($cart, $order_item);
  • Thanks for your answer. It works like a charm.
    – briast
    Oct 6, 2020 at 16:14

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