1<?php
2
3namespace Drupal\serialization\Normalizer;
4
5use Drupal\Core\Config\Entity\ConfigEntityInterface;
6
7/**
8 * Normalizes/denormalizes Drupal config entity objects into an array structure.
9 */
10class ConfigEntityNormalizer extends EntityNormalizer {
11
12  /**
13   * {@inheritdoc}
14   */
15  protected $supportedInterfaceOrClass = ConfigEntityInterface::class;
16
17  /**
18   * {@inheritdoc}
19   */
20  public function normalize($object, $format = NULL, array $context = []) {
21    return static::getDataWithoutInternals($object->toArray());
22  }
23
24  /**
25   * {@inheritdoc}
26   */
27  public function denormalize($data, $class, $format = NULL, array $context = []) {
28    return parent::denormalize(static::getDataWithoutInternals($data), $class, $format, $context);
29  }
30
31  /**
32   * Gets the given data without the internal implementation details.
33   *
34   * @param array $data
35   *   The data that is either currently or about to be stored in configuration.
36   *
37   * @return array
38   *   The same data, but without internals. Currently, that is only the '_core'
39   *   key, which is reserved by Drupal core to handle complex edge cases
40   *   correctly. Data in the '_core' key is irrelevant to clients reading
41   *   configuration, and is not allowed to be set by clients writing
42   *   configuration: it is for Drupal core only, and managed by Drupal core.
43   *
44   * @see https://www.drupal.org/node/2653358
45   */
46  protected static function getDataWithoutInternals(array $data) {
47    return array_diff_key($data, ['_core' => TRUE]);
48  }
49
50}
51