jsonapi-8.x-2.x-dev/src/Revisions/VersionById.php
src/Revisions/VersionById.php
<?php namespace Drupal\jsonapi\Revisions; use Drupal\Core\Entity\EntityInterface; /** * Defines a revision ID implementation for entity revision ID values. * * @internal JSON:API maintains no PHP API since its API is the HTTP API. This * class may change at any time and this will break any dependencies on it. * * @see https://www.drupal.org/project/jsonapi/issues/3032787 * @see jsonapi.api.php */ class VersionById extends NegotiatorBase implements VersionNegotiatorInterface { /** * {@inheritdoc} */ protected function getRevisionId(EntityInterface $entity, $version_argument) { if (!is_numeric($version_argument)) { throw new InvalidVersionIdentifierException('The revision ID must be an integer.'); } return $version_argument; } }