function RelationshipNormalizer::getNormalizationSchema

Overrides SchematicNormalizerTrait::getNormalizationSchema

File

core/modules/jsonapi/src/Normalizer/RelationshipNormalizer.php, line 46

Class

RelationshipNormalizer

Normalizes a JSON:API relationship object.

Namespace

Code

public function getNormalizationSchema(mixed $object, array $context = []) : array {
  assert($object instanceof Relationship);
  $schema = [
    'allOf' => [
      [
        '$ref' => JsonApiSpec::SUPPORTED_SPECIFICATION_JSON_SCHEMA . '#/definitions/relationship',
      ],
    ],
  ];
  $field_definition = $object->getContext()
    ->getField($object->getFieldName())?->getFieldDefinition();
  $item_class = $field_definition?->getItemDefinition()->getClass();
  assert($item_class, sprintf('The context ResourceObject for Relationship being normalized is missing field %s.', $object->getFieldName()));
  if (!$item_class || !is_subclass_of($item_class, EntityReferenceItemInterface::class)) {
    return $schema;
  }
  $targets = $item_class::getReferenceableBundles($field_definition);
  $target_types = array_reduce(array_keys($targets), function (array $carry, string $entity_type_id) use ($targets) {
    foreach ($targets[$entity_type_id] as $bundle) {
      // Even if a resource is internal, it can be referenced.
      if (!($resource = $this->resourceTypeRepository
        ->get($entity_type_id, $bundle)) || in_array($resource->getTypeName(), $carry)) {
        continue;
      }
      $carry[] = $resource->getTypeName();
    }
    return $carry;
  }, []);
  if ($target_types) {
    $schema['properties']['type'] = [
      'oneOf' => array_map(fn(string $resource_type_name) => [
        'const' => $resource_type_name,
      ], $target_types),
    ];
  }
  return $schema;
}