class LatestRevisionCheck in Drupal 8

Access check for the entity moderation tab.

Hierarchy

• class \Drupal\content_moderation\Access\LatestRevisionCheck implements AccessInterface

2 files declare their use of LatestRevisionCheck

EntityAccessChecker.php in core/modules/jsonapi/src/Access/EntityAccessChecker.php

LatestRevisionCheckTest.php in core/modules/content_moderation/tests/src/Unit/LatestRevisionCheckTest.php

1 string reference to 'LatestRevisionCheck'

content_moderation.services.yml in core/modules/content_moderation/content_moderation.services.yml

core/modules/content_moderation/content_moderation.services.yml

1 service uses LatestRevisionCheck

access_check.latest_revision in core/modules/content_moderation/content_moderation.services.yml

Drupal\content_moderation\Access\LatestRevisionCheck

File

core/modules/content_moderation/src/Access/LatestRevisionCheck.php, line 18

Namespace

Drupal\content_moderation\Access

class LatestRevisionCheck implements AccessInterface {

  /**
   * The moderation information service.
   *
   * @var \Drupal\content_moderation\ModerationInformationInterface
   */
  protected $moderationInfo;

  /**
   * Constructs a new LatestRevisionCheck.
   *
   * @param \Drupal\content_moderation\ModerationInformationInterface $moderation_information
   *   The moderation information service.
   */
  public function __construct(ModerationInformationInterface $moderation_information) {
    $this->moderationInfo = $moderation_information;
  }

  /**
   * Checks that there is a pending revision available.
   *
   * This checker assumes the presence of an '_entity_access' requirement key
   * in the same form as used by EntityAccessCheck.
   *
   * @param \Symfony\Component\Routing\Route $route
   *   The route to check against.
   * @param \Drupal\Core\Routing\RouteMatchInterface $route_match
   *   The parametrized route.
   * @param \Drupal\Core\Session\AccountInterface $account
   *   The current user account.
   *
   * @return \Drupal\Core\Access\AccessResultInterface
   *   The access result.
   *
   * @see \Drupal\Core\Entity\EntityAccessCheck
   */
  public function access(Route $route, RouteMatchInterface $route_match, AccountInterface $account) {

    // This tab should not show up unless there's a reason to show it.
    $entity = $this
      ->loadEntity($route, $route_match);
    if ($this->moderationInfo
      ->hasPendingRevision($entity)) {

      // Check the global permissions first.
      $access_result = AccessResult::allowedIfHasPermissions($account, [
        'view latest version',
        'view any unpublished content',
      ]);
      if (!$access_result
        ->isAllowed()) {

        // Check entity owner access.
        $owner_access = AccessResult::allowedIfHasPermissions($account, [
          'view latest version',
          'view own unpublished content',
        ]);
        $owner_access = $owner_access
          ->andIf(AccessResult::allowedIf($entity instanceof EntityOwnerInterface && $entity
          ->getOwnerId() == $account
          ->id()));
        $access_result = $access_result
          ->orIf($owner_access);
      }
      return $access_result
        ->addCacheableDependency($entity);
    }
    return AccessResult::forbidden('No pending revision for moderated entity.')
      ->addCacheableDependency($entity);
  }

  /**
   * Returns the default revision of the entity this route is for.
   *
   * @param \Symfony\Component\Routing\Route $route
   *   The route to check against.
   * @param \Drupal\Core\Routing\RouteMatchInterface $route_match
   *   The parametrized route.
   *
   * @return \Drupal\Core\Entity\ContentEntityInterface
   *   returns the Entity in question.
   *
   * @throws \Drupal\Core\Access\AccessException
   *   An AccessException is thrown if the entity couldn't be loaded.
   */
  protected function loadEntity(Route $route, RouteMatchInterface $route_match) {
    $entity_type = $route
      ->getOption('_content_moderation_entity_type');
    if ($entity = $route_match
      ->getParameter($entity_type)) {
      if ($entity instanceof EntityInterface) {
        return $entity;
      }
    }
    throw new AccessException(sprintf('%s is not a valid entity route. The LatestRevisionCheck access checker may only be used with a route that has a single entity parameter.', $route_match
      ->getRouteName()));
  }

}

Members

Name	Modifiers	Type	Description	Overrides
LatestRevisionCheck::$moderationInfo	protected	property	The moderation information service.
LatestRevisionCheck::access	public	function	Checks that there is a pending revision available.
LatestRevisionCheck::loadEntity	protected	function	Returns the default revision of the entity this route is for.
LatestRevisionCheck::__construct	public	function	Constructs a new LatestRevisionCheck.