class FieldNormalizer in Drupal 10

Denormalizes data to Drupal field values.

This class simply calls denormalize() on the individual FieldItems. The FieldItem normalizers are responsible for setting the field values for each item.

Hierarchy

• class \Drupal\serialization\Normalizer\FieldNormalizer extends \Drupal\serialization\Normalizer\ListNormalizer implements \Symfony\Component\Serializer\Normalizer\DenormalizerInterface

See also

\Drupal\serialization\Normalizer\FieldItemNormalizer.

1 string reference to 'FieldNormalizer'

serialization.services.yml in core/modules/serialization/serialization.services.yml

core/modules/serialization/serialization.services.yml

1 service uses FieldNormalizer

serialization.normalizer.field in core/modules/serialization/serialization.services.yml

Drupal\serialization\Normalizer\FieldNormalizer

File

core/modules/serialization/src/Normalizer/FieldNormalizer.php, line 19

Namespace

Drupal\serialization\Normalizer

class FieldNormalizer extends ListNormalizer implements DenormalizerInterface {

  /**
   * {@inheritdoc}
   */
  protected $supportedInterfaceOrClass = FieldItemListInterface::class;

  /**
   * {@inheritdoc}
   */
  public function denormalize($data, $class, $format = NULL, array $context = []) : mixed {
    if (!isset($context['target_instance'])) {
      throw new InvalidArgumentException('$context[\'target_instance\'] must be set to denormalize with the FieldNormalizer');
    }
    if ($context['target_instance']
      ->getParent() == NULL) {
      throw new InvalidArgumentException('The field passed in via $context[\'target_instance\'] must have a parent set.');
    }

    /** @var \Drupal\Core\Field\FieldItemListInterface $items */
    $items = $context['target_instance'];
    $item_class = $items
      ->getItemDefinition()
      ->getClass();
    if (!is_array($data)) {
      throw new UnexpectedValueException(sprintf('Field values for "%s" must use an array structure', $items
        ->getName()));
    }
    foreach ($data as $item_data) {

      // Create a new item and pass it as the target for the unserialization of
      // $item_data. All items in field should have removed before this method
      // was called.
      // @see \Drupal\serialization\Normalizer\ContentEntityNormalizer::denormalize().
      $context['target_instance'] = $items
        ->appendItem();
      $this->serializer
        ->denormalize($item_data, $item_class, $format, $context);
    }
    return $items;
  }

}

Members

Name	Modifiers	Type	Description	Overrides
FieldNormalizer::$supportedInterfaceOrClass	protected	property
FieldNormalizer::denormalize	public	function