/**
* Overrides Drupal\Core\Entity\Sql\SqlContentEntityStorage::save().
*
* Cart items are deleted if saved with a quantity of zero.
*/
public function save(EntityInterface $entity)
{
if ($entity->qty->value < 1) {
if (isset($entity->cart_item_id->value)) {
parent::delete(array($entity->cart_item_id->value => $entity));
}
} else {
$entity->setChangedTime(REQUEST_TIME);
parent::save($entity);
}
}
