replication-8.x-1.x-dev/src/Normalizer/LocalSequenceItemListNormalizer.php

<?php

namespace Drupal\replication\Normalizer;

use Drupal\serialization\Normalizer\NormalizerBase;
use Symfony\Component\Serializer\Normalizer\DenormalizerInterface;

class LocalSequenceItemListNormalizer extends NormalizerBase implements DenormalizerInterface {

  /**
   * @var string[]
   */
  protected $supportedInterfaceOrClass = ['Drupal\multiversion\Plugin\Field\FieldType\LocalSequenceItemList'];

  /**
   * @var string[]
   */
  protected $format = ['json'];

  /**
   * {@inheritdoc}
   */
  public function normalize($field, $format = NULL, array $context = []) {
    return $field->id;
  }

  /**
   * {@inheritdoc}
   */
  public function denormalize($data, $class, $format = NULL, array $context = []) {
    return [['id' => $data]];
  }
}