commerce_cart_api-8.x-1.4/commerce_cart_api.module

<?php

/**
 * @file
 * Provides hooks.
 */

use Drupal\Core\Entity\EntityTypeInterface;
use Drupal\Core\Field\FieldDefinitionInterface;
use Drupal\Core\Field\FieldItemListInterface;
use Drupal\Core\Session\AccountInterface;

/**
 * Implements hook_entity_field_access().
 */
function commerce_cart_api_entity_field_access($operation, FieldDefinitionInterface $field_definition, AccountInterface $account, ?FieldItemListInterface $items = NULL) {
  $field_access = \Drupal::getContainer()->get('commerce_cart_api.field_access');
  return $field_access->handle($operation, $field_definition, $account, $items);
}

/**
 * Implements hook_entity_base_field_info_alter().
 */
function commerce_cart_api_entity_base_field_info_alter(&$fields, EntityTypeInterface $entity_type) {
  if (isset($fields['coupons']) && ($entity_type->id() === 'commerce_order')) {
    $fields['coupons']->addConstraint('CouponValid');
  }
}