function EntityReferenceFieldItemNormalizer::normalize

Overrides ComplexDataNormalizer::normalize

File

core/modules/serialization/src/Normalizer/EntityReferenceFieldItemNormalizer.php, line 38

Class

EntityReferenceFieldItemNormalizer

Adds the file URI to embedded file entities.

Namespace

Code

public function normalize($field_item, $format = NULL, array $context = []) : array|string|int|float|bool|\ArrayObject|null {
    $values = parent::normalize($field_item, $format, $context);
    $this->normalizeRootReferenceValue($values, $field_item);
    
    /** @var \Drupal\Core\Entity\EntityInterface $entity */
    if ($entity = $field_item->get('entity')
        ->getValue()) {
        $values['target_type'] = $entity->getEntityTypeId();
        // Add the target entity UUID to the normalized output values.
        $values['target_uuid'] = $entity->uuid();
        // Add a 'url' value if there is a reference and a canonical URL. Hard
        // code 'canonical' here as config entities override the default $rel
        // parameter value to 'edit-form.
        if ($entity->hasLinkTemplate('canonical') && !$entity->isNew() && ($url = $entity->toUrl('canonical')
            ->toString(TRUE))) {
            $this->addCacheableDependency($context, $url);
            $values['url'] = $url->getGeneratedUrl();
        }
        elseif ($entity instanceof FileInterface) {
            $values['url'] = $entity->createFileUrl(FALSE);
        }
    }
    return $values;
}