/**
* Entity builder: populates the line item title from the purchased entity.
*
* @param string $entity_type
* The entity type identifier.
* @param \Drupal\commerce_order\Entity\LineItemInterface $line_item
* The line item.
* @param array $form
* The complete form array.
* @param \Drupal\Core\Form\FormStateInterface $form_state
* The current state of the form.
*/
public static function populateTitle($entity_type, LineItemInterface $line_item, array $form, FormStateInterface $form_state)
{
$purchased_entity = $line_item->getPurchasedEntity();
if ($line_item->isNew() && $purchased_entity) {
$line_item->setTitle($purchased_entity->getLineItemTitle());
}
}
