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;
}