class Tracker in Menu Entity Index 8

Tracks menu links and their referenced entities.

Hierarchy

class \Drupal\menu_entity_index\Tracker implements TrackerInterface uses DependencySerializationTrait, MessengerTrait, StringTranslationTrait

Expanded class hierarchy of Tracker

1 string reference to 'Tracker'

menu_entity_index.services.yml in ./menu_entity_index.services.yml: menu_entity_index.services.yml

1 service uses Tracker

menu_entity_index.tracker in ./menu_entity_index.services.yml: Drupal\menu_entity_index\Tracker

File

src/Tracker.php, line 34

Namespace

Drupal\menu_entity_index

View source

class Tracker implements TrackerInterface {
  use DependencySerializationTrait;
  use MessengerTrait;
  use StringTranslationTrait;

  /**
   * Configuration Factory Service.
   *
   * @var \Drupal\Core\Config\ConfigFactory
   */
  protected $configFactory;

  /**
   * This service's configuration.
   *
   * @var \Drupal\Core\Config\ImmutableConfig
   */
  protected $config;

  /**
   * The database connection.
   *
   * @var \Drupal\Core\Database\Connection
   */
  protected $database;

  /**
   * The entity repository.
   *
   * @var \Drupal\Core\Entity\EntityRepositoryInterface
   */
  protected $entityRepository;

  /**
   * The entity type manager.
   *
   * @var \Drupal\Core\Entity\EntityTypeManagerInterface
   */
  protected $entityTypeManager;

  /**
   * The menu link manager service.
   *
   * @var \Drupal\Core\Menu\MenuLinkManagerInterface
   */
  protected $menuLinkManager;

  /**
   * The path processor manager service.
   *
   * @var \Drupal\Core\PathProcessor\InboundPathProcessorInterface
   */
  protected $pathProcessor;

  /**
   * The request stack.
   *
   * @var \Symfony\Component\HttpFoundation\RequestStack
   */
  protected $requestStack;

  /**
   * The dynamic router service.
   *
   * @var \Symfony\Component\Routing\Matcher\RequestMatcherInterface
   */
  protected $router;

  /**
   * The path validator.
   *
   * @var \Drupal\Core\Path\PathValidatorInterface
   */
  protected $pathValidator;

  /**
   * Views data manager.
   *
   * @var \Drupal\views\ViewsData|null
   */
  protected $viewsData = NULL;

  /**
   * Constructs the Tracker object.
   *
   * @param \Drupal\Core\Config\ConfigFactory $config_factory
   *   The config factory service.
   * @param \Drupal\Core\Database\Connection $connection
   *   The database connection.
   * @param \Drupal\Core\Entity\EntityRepositoryInterface $entity_repository
   *   The entity repository.
   * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager
   *   The entity type manager service.
   * @param \Drupal\Core\Menu\MenuLinkManagerInterface $menu_link_manager
   *   The menu link manager service.
   * @param \Drupal\Core\PathProcessor\InboundPathProcessorInterface $path_processor
   *   The path processor manager service.
   * @param \Symfony\Component\HttpFoundation\RequestStack $request_stack
   *   The request stack.
   * @param \Symfony\Component\Routing\Matcher\RequestMatcherInterface $router
   *   The dynamic router service.
   * @param \Drupal\Core\Path\PathValidatorInterface $path_validator
   *   The path validator.
   */
  public function __construct(ConfigFactory $config_factory, Connection $connection, EntityRepositoryInterface $entity_repository, EntityTypeManagerInterface $entity_type_manager, MenuLinkManagerInterface $menu_link_manager, InboundPathProcessorInterface $path_processor, RequestStack $request_stack, RequestMatcherInterface $router, PathValidatorInterface $path_validator) {
    $this->configFactory = $config_factory;

    // Load configuration.
    $config = $this->configFactory
      ->get('menu_entity_index.configuration');
    if ($config
      ->isNew()) {
      $this
        ->messenger()
        ->addError($this
        ->t('The @service service has not been <a href=":url">configured</a> yet.', [
        '@service' => $this
          ->t('Menu Entity Index Tracker'),
        ':url' => Url::fromRoute('menu_entity_index.configure')
          ->toString(),
      ]));
    }
    $this->config = $config;
    $this->database = $connection;
    $this->entityRepository = $entity_repository;
    $this->entityTypeManager = $entity_type_manager;
    $this->menuLinkManager = $menu_link_manager;
    $this->pathProcessor = $path_processor;
    $this->requestStack = $request_stack;
    $this->router = $router;
    $this->pathValidator = $path_validator;
  }

  /**
   * Sets optional views data manager dependency, if available.
   *
   * @param \Drupal\views\ViewsData|null $views_data
   *   The views data manager.
   */
  public function setViewsData($views_data) {
    $this->viewsData = $views_data;
  }

  /**
   * {@inheritdoc}
   */
  public function getAvailableMenus() {
    $options = [];
    $eids = $this->entityTypeManager
      ->getStorage('menu', 'AND')
      ->getQuery()
      ->execute();
    $menus = $this->entityTypeManager
      ->getStorage('menu')
      ->loadMultiple($eids);
    foreach ($menus as $name => $menu) {
      $options[$name] = $menu
        ->label();
    }
    asort($options);
    return $options;
  }

  /**
   * {@inheritdoc}
   */
  public function getAvailableEntityTypes() {
    $options = [];
    $types = $this->entityTypeManager
      ->getDefinitions();
    foreach ($types as $type_id => $type) {
      if ($type instanceof ContentEntityType) {
        $options[$type_id] = $type
          ->getLabel();
      }
    }
    if (isset($options['menu_link_content'])) {
      unset($options['menu_link_content']);
    }
    return $options;
  }

  /**
   * {@inheritdoc}
   */
  public function getTrackedMenus() {
    if ($this->config
      ->get('all_menus')) {
      return array_keys($this
        ->getAvailableMenus());
    }
    $menus = $this->config
      ->get('menus');
    return array_values((array) $menus);
  }

  /**
   * {@inheritdoc}
   */
  public function getConfiguration() {
    return $this->configFactory
      ->get('menu_entity_index.configuration');
  }

  /**
   * {@inheritdoc}
   */
  public function setConfiguration(array $form_values = [], $force_rebuild = FALSE) {
    $entity_type_ids = !empty($form_values['entity_types']) ? array_filter($form_values['entity_types']) : [];
    $force = $force_rebuild || $this
      ->setTrackedEntityTypes($entity_type_ids);
    if ($form_values['all_menus']) {
      $this
        ->setTrackAllMenus($force);
    }
    elseif (!empty($form_values['menus'])) {
      $menus = array_filter($form_values['menus']);
      $this
        ->setTrackedMenus($menus, $force);
    }

    // Clear views table data cache.
    if (is_object($this->viewsData)) {
      $this->viewsData
        ->clear();
    }
  }

  /**
   * Sets all menus option to track and update database table accordingly.
   *
   * @param bool $force
   *   Retrack all tracked menus, even if configuration didn't change. Default
   *   is FALSE.
   */
  protected function setTrackAllMenus($force = FALSE) {
    $old_value = $this->config
      ->get('all_menus');
    $this->configFactory
      ->getEditable('menu_entity_index.configuration')
      ->set('all_menus', TRUE)
      ->set('menus', [])
      ->save();
    if (!$old_value || $force) {
      $this
        ->untrackMenus($this
        ->getTrackedMenus());
      $this
        ->trackMenus($this
        ->getTrackedMenus());
    }
  }

  /**
   * Sets menus to track and updates database table accordingly.
   *
   * @param array $menus
   *   Menu names to track.
   * @param bool $force
   *   Retrack all tracked menus, even, if menu configuration didn't change.
   *   Default is FALSE.
   */
  protected function setTrackedMenus(array $menus = [], $force = FALSE) {
    $old_values = $this
      ->getTrackedMenus();
    $this->configFactory
      ->getEditable('menu_entity_index.configuration')
      ->set('all_menus', FALSE)
      ->set('menus', $menus)
      ->save();
    $this->config = $this->configFactory
      ->get('menu_entity_index.configuration');
    if ($force) {

      // If we force a rebuild, make sure we untrack all existing indexed items.
      $this
        ->untrackMenus(array_keys($this
        ->getAvailableMenus()));
      $this
        ->trackMenus($this
        ->getTrackedMenus());
    }
    else {
      $new_menus = (array) array_diff($menus, $old_values);
      $this
        ->untrackMenus((array) array_diff($old_values, $menus));
      $this
        ->trackMenus($new_menus);
    }
  }

  /**
   * {@inheritdoc}
   */
  public function getTrackedEntityTypes() {
    $entity_type_ids = $this->config
      ->get('entity_types');
    return array_values((array) $entity_type_ids);
  }

  /**
   * {@inheritdoc}
   */
  public function isTrackedEntityType(EntityTypeInterface $type) {
    return $type instanceof ContentEntityType && in_array($type
      ->id(), $this
      ->getTrackedEntityTypes());
  }

  /**
   * Sets entity types to track and updates database table accordingly.
   *
   * @param array $entity_type_ids
   *   Entity Type Ids to track.
   */
  protected function setTrackedEntityTypes(array $entity_type_ids = []) {
    $values = $this->config
      ->get('entity_types');
    $this->configFactory
      ->getEditable('menu_entity_index.configuration')
      ->set('entity_types', $entity_type_ids)
      ->save();
    $this->config = $this->configFactory
      ->get('menu_entity_index.configuration');
    $this
      ->untrackEntityTypeIds((array) array_diff($values, $entity_type_ids));
    $new_types = (array) array_diff($entity_type_ids, $values);
    return count($new_types) > 0;
  }

  /**
   * Scans menu links in menus for references to target entities via Batch API.
   *
   * @param array $menus
   *   Menu names to scan.
   */
  protected function trackMenus(array $menus = []) {
    if (empty($menus)) {
      return;
    }
    $operations = [];
    foreach ($menus as $menu) {
      $arguments = [
        [
          $menu,
        ],
      ];
      $operations[] = [
        'menu_entity_index_track_batch',
        $arguments,
      ];
    }
    batch_set([
      'title' => $this
        ->t('Scanning menu links'),
      'operations' => $operations,
      'file' => drupal_get_path('module', 'menu_entity_index') . '/menu_entity_index.batch.inc',
    ]);
  }

  /**
   * Deletes all tracked records for menus.
   *
   * @param array $menu_names
   *   Menu names to delete records for.
   */
  protected function untrackMenus(array $menu_names = []) {
    if (empty($menu_names)) {
      return;
    }
    $this->database
      ->delete('menu_entity_index')
      ->condition('menu_name', (array) $menu_names, 'IN')
      ->execute();
  }

  /**
   * Deletes all tracked records for target entity types.
   *
   * @param array $entity_type_ids
   *   Target entity type ids to delete records for.
   */
  protected function untrackEntityTypeIds(array $entity_type_ids = []) {
    if (empty($entity_type_ids)) {
      return;
    }
    $this->database
      ->delete('menu_entity_index')
      ->condition('target_type', (array) $entity_type_ids, 'IN')
      ->execute();
  }

  /**
   * {@inheritdoc}
   */
  public function deleteEntity(EntityInterface $entity) {

    // Process menu links only.
    if ($entity
      ->getEntityTypeId() !== 'menu_link_content') {
      return;
    }

    // Process menu links in tracked menus only.
    if (!in_array($entity
      ->getMenuName(), $this
      ->getTrackedMenus())) {
      return;
    }
    $query = $this->database
      ->delete('menu_entity_index')
      ->condition('entity_type', $entity
      ->getEntityTypeId())
      ->condition('entity_id', $entity
      ->id());
    if ($entity
      ->getEntityType()
      ->hasKey('langcode')) {
      $query
        ->condition('langcode', $entity
        ->language()
        ->getId());
    }
    $query
      ->execute();
  }

  /**
   * Checks, if an entity is translatable.
   *
   * @param \Drupal\Core\Entity\EntityInterface $entity
   *   The entity to check.
   *
   * @return bool
   *   TRUE, if entity is translatable. Otherwise FALSE.
   */
  protected function isEntityTranslatable(EntityInterface $entity) {

    // @todo: Decide what to do with the default translation check.
    return $entity instanceof TranslatableInterface && $entity
      ->isTranslatable();

    /* && !$entity->isDefaultTranslation()*/
  }

  /**
   * Matches an absolute URL in the router.
   *
   * @param string $url
   *   The absolute URL to match.
   *
   * @return \Symfony\Component\HttpFoundation\Request|null
   *   A populated request object or NULL if the path couldn't be matched.
   */
  protected function getRequestForUrl($url) {

    // Work around 1433996, 2070185, 2529170, 2548095, 2568773, 2753591 and
    // other related core issues.
    $current_request = $this->requestStack
      ->getCurrentRequest();
    if (strpos($url, $current_request
      ->getSchemeAndHttpHost()) === 0) {
      $url = substr($url, strlen($current_request
        ->getSchemeAndHttpHost()));
    }
    if (!empty($current_request
      ->getBaseUrl()) && strpos($url, $current_request
      ->getBaseUrl()) === 0) {
      $url = substr($url, strlen($current_request
        ->getBaseUrl()));
    }

    // Don't try to track external URLs.
    $validated_url = $this->pathValidator
      ->getUrlIfValidWithoutAccessCheck($url);
    if (!$validated_url || $validated_url
      ->isExternal()) {
      return NULL;
    }
    $request = Request::create($url);

    // Performance optimization: set a short accept header to reduce overhead in
    // AcceptHeaderMatcher when matching the request.
    $request->headers
      ->set('Accept', 'text/html');

    // Find the system path by resolving aliases, language prefix, etc.
    $processed = $this->pathProcessor
      ->processInbound($url, $request);
    if (empty($processed)) {

      // This resolves to the front page.
      return NULL;
    }

    // Attempt to match this path to provide a fully built request.
    try {
      $request->attributes
        ->add($this->router
        ->matchRequest($request));
      return $request;
    } catch (ParamNotConvertedException $e) {
      return NULL;
    } catch (ResourceNotFoundException $e) {
      return NULL;
    } catch (MethodNotAllowedException $e) {
      return NULL;
    } catch (AccessDeniedHttpException $e) {
      return NULL;
    }
  }

  /**
   * {@inheritdoc}
   */
  public function updateEntity(EntityInterface $entity) {

    // Process menu links only.
    if ($entity
      ->getEntityTypeId() !== 'menu_link_content') {
      return;
    }

    // Process menu links in tracked menus only.
    if (!in_array($entity
      ->getMenuName(), $this
      ->getTrackedMenus())) {
      return;
    }

    // Delete any existing references for this host entity from db.
    if (!$entity
      ->isNew()) {
      $this
        ->deleteEntity($entity);
    }
    $targets = [];

    // Get a route match object for the target path of the menu link, so that we
    // can get a parameter bag.
    try {
      $url = $entity
        ->getUrlObject();
      if (!$url
        ->isExternal()) {
        $url
          ->setOption('absolute', TRUE);
      }
      $url = $url
        ->toString();
    } catch (\InvalidArgumentException $e) {
      return;
    }
    $route_request = $this
      ->getRequestForUrl($url);
    if ($route_request) {
      $route_match = RouteMatch::createFromRequest($route_request);
      $parameters = $route_match
        ->getParameters();

      // Check, if any parameters are content entities, that we want to track.
      foreach ($parameters as $parameter) {
        if ($parameter instanceof ContentEntityInterface) {
          if (in_array($parameter
            ->getEntityTypeId(), $this
            ->getTrackedEntityTypes())) {

            // This is a target entity we want to track.
            if (!$this
              ->isEntityTranslatable($parameter)) {
              $targets[] = $parameter;
            }
            else {
              if ($this
                ->isEntityTranslatable($entity)) {
                $targets[] = $parameter
                  ->hasTranslation($entity
                  ->language()
                  ->getId()) ? $parameter
                  ->getTranslation($entity
                  ->language()
                  ->getId()) : $parameter;
              }
              else {
                foreach ($parameter
                  ->getTranslationLanguages() as $language) {
                  if ($entity
                    ->language()
                    ->getId() === $language
                    ->getId()) {
                    $targets[] = $parameter
                      ->getTranslation($entity
                      ->language()
                      ->getId());
                  }
                }
              }
            }
          }
        }
      }
    }

    // Add new records to database, if any.
    if (count($targets) > 0) {
      $this
        ->addEntityTargets($entity, $targets);
    }
  }

  /**
   * Inserts a database entry for each target entity of the given host entity.
   *
   * @param \Drupal\Core\Entity\EntityInterface $entity
   *   The host entity for which to add tracking records.
   * @param array $targets
   *   An array of target entities.
   *
   * @return int|bool
   *   The last insert ID of the query or FALSE if no targets were provided.
   */
  protected function addEntityTargets(EntityInterface $entity, array $targets = []) {
    if (empty($targets)) {
      return FALSE;
    }
    $parent_link = NULL;
    $parent_entity = NULL;
    $parent_id = $entity
      ->getParentId();
    if (!empty($parent_id) && $this->menuLinkManager
      ->hasDefinition($parent_id)) {
      $parent_link = $this->menuLinkManager
        ->createInstance($parent_id);
      if ($parent_link
        ->getBaseId() == 'menu_link_content') {
        $parent_entity = $this->entityRepository
          ->loadEntityByUuid($parent_link
          ->getBaseId(), $parent_link
          ->getDerivativeId());
      }
      elseif ($parent_link
        ->getBaseId() == 'views_view') {
        $parent_entity = $parent_link
          ->loadView();
      }
    }
    $menu_link = $this->menuLinkManager
      ->createInstance($entity
      ->getPluginId());
    $host_values = [
      'menu_name' => $entity
        ->getMenuName(),
      'level' => $menu_link ? $this
        ->getMenuLinkLevel($menu_link) : 0,
      'entity_type' => $entity
        ->getEntityTypeId(),
      'entity_subtype' => $entity
        ->bundle(),
      'entity_id' => $entity
        ->id(),
      'entity_uuid' => $entity
        ->uuid(),
      'parent_type' => $parent_link ? $parent_link
        ->getBaseId() : '',
      'parent_id' => $parent_entity ? $parent_entity
        ->id() : NULL,
      'parent_uuid' => $parent_link ? (string) $parent_link
        ->getDerivativeId() : '',
      'langcode' => $entity
        ->getEntityType()
        ->hasKey('langcode') ? $entity
        ->language()
        ->getId() : '',
    ];
    $query = $this->database
      ->insert('menu_entity_index')
      ->fields([
      'menu_name',
      'level',
      'entity_type',
      'entity_subtype',
      'entity_id',
      'entity_uuid',
      'parent_type',
      'parent_id',
      'parent_uuid',
      'langcode',
      'target_type',
      'target_subtype',
      'target_id',
      'target_uuid',
      'target_langcode',
    ]);
    foreach ($targets as $target_entity) {
      $values = [
        'target_type' => $target_entity
          ->getEntityTypeId(),
        'target_subtype' => $target_entity
          ->bundle(),
        'target_id' => $target_entity
          ->id(),
        'target_uuid' => $target_entity
          ->uuid(),
        'target_langcode' => $target_entity
          ->getEntityType()
          ->hasKey('langcode') ? $target_entity
          ->language()
          ->getId() : '',
      ];
      $query
        ->values($values + $host_values);
    }
    return $query
      ->execute();
  }

  /**
   * Gets menu level of a menu link.
   *
   * Recursive method.
   *
   * @param \Drupal\Core\Menu\MenuLinkInterface $menu_link
   *   The menu link plugin to get the level for.
   * @param int $level
   *   Used internally to track level during recursive calls.
   *
   * @return int
   *   Menu level of the menu link.
   */
  protected function getMenuLinkLevel(MenuLinkInterface $menu_link, $level = 0) {
    $parent_id = $menu_link
      ->getParent();
    if (!empty($parent_id) && $this->menuLinkManager
      ->hasDefinition($parent_id)) {
      $parent_link = $this->menuLinkManager
        ->createInstance($parent_id);
      if ($parent_link) {
        return $this
          ->getMenuLinkLevel($parent_link, $level + 1);
      }
      return $level;
    }
    else {
      return $level;
    }
  }

  /**
   * {@inheritdoc}
   */
  public function getHostData(EntityInterface $entity) {
    $data = [];
    $type = $entity
      ->getEntityTypeId();
    if (in_array($entity
      ->getEntityTypeId(), $this
      ->getTrackedEntityTypes())) {
      $id = $entity
        ->id();
      $result = $this->database
        ->select('menu_entity_index')
        ->fields('menu_entity_index', [
        'entity_type',
        'entity_id',
        'menu_name',
        'level',
        'langcode',
      ])
        ->condition('target_type', $type)
        ->condition('target_id', $id)
        ->orderBy('menu_name', 'ASC')
        ->orderBy('level', 'ASC')
        ->execute();
      $menus = [];
      foreach ($result as $row) {
        if (!isset($menus[$row->menu_name])) {
          $entity = $this->entityTypeManager
            ->getStorage('menu')
            ->load($row->menu_name);
          $menus[$row->menu_name] = $entity
            ->label();
        }
        $entity = $this->entityTypeManager
          ->getStorage($row->entity_type)
          ->load($row->entity_id);
        if ($entity) {
          $data[] = [
            'menu_name' => $menus[$row->menu_name],
            'level' => $row->level,
            'label' => $entity
              ->getTitle(),
            'link' => $entity
              ->access('view') ? $entity
              ->toUrl() : '',
            'language' => $entity
              ->language()
              ->getName(),
          ];
        }
      }
    }
    return $data;
  }

}

Members

Name	Modifiers	Type	Description	Overrides
DependencySerializationTrait::$_entityStorages	protected	property	An array of entity type IDs keyed by the property name of their storages.
DependencySerializationTrait::$_serviceIds	protected	property	An array of service IDs keyed by property name used for serialization.
DependencySerializationTrait::__sleep	public	function		1
DependencySerializationTrait::__wakeup	public	function		2
MessengerTrait::$messenger	protected	property	The messenger.	29
MessengerTrait::messenger	public	function	Gets the messenger.	29
MessengerTrait::setMessenger	public	function	Sets the messenger.
StringTranslationTrait::$stringTranslation	protected	property	The string translation service.	1
StringTranslationTrait::formatPlural	protected	function	Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals	protected	function	Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation	protected	function	Gets the string translation service.
StringTranslationTrait::setStringTranslation	public	function	Sets the string translation service to use.	2
StringTranslationTrait::t	protected	function	Translates a string to the current language or to a given language.
Tracker::$config	protected	property	This service's configuration.
Tracker::$configFactory	protected	property	Configuration Factory Service.
Tracker::$database	protected	property	The database connection.
Tracker::$entityRepository	protected	property	The entity repository.
Tracker::$entityTypeManager	protected	property	The entity type manager.
Tracker::$menuLinkManager	protected	property	The menu link manager service.
Tracker::$pathProcessor	protected	property	The path processor manager service.
Tracker::$pathValidator	protected	property	The path validator.
Tracker::$requestStack	protected	property	The request stack.
Tracker::$router	protected	property	The dynamic router service.
Tracker::$viewsData	protected	property	Views data manager.
Tracker::addEntityTargets	protected	function	Inserts a database entry for each target entity of the given host entity.
Tracker::deleteEntity	public	function	Deletes all database records for the given host entity. Overrides TrackerInterface::deleteEntity
Tracker::getAvailableEntityTypes	public	function	Gets Content Entity Type Ids, that are available for tracking. Overrides TrackerInterface::getAvailableEntityTypes
Tracker::getAvailableMenus	public	function	Gets Menu Names, that are available for tracking. Overrides TrackerInterface::getAvailableMenus
Tracker::getConfiguration	public	function	Gets stored configuration object. Overrides TrackerInterface::getConfiguration
Tracker::getHostData	public	function	Gets host information for a target entity. Overrides TrackerInterface::getHostData
Tracker::getMenuLinkLevel	protected	function	Gets menu level of a menu link.
Tracker::getRequestForUrl	protected	function	Matches an absolute URL in the router.
Tracker::getTrackedEntityTypes	public	function	Gets entity types configured for tracking. Overrides TrackerInterface::getTrackedEntityTypes
Tracker::getTrackedMenus	public	function	Gets menus configured for tracking. Overrides TrackerInterface::getTrackedMenus
Tracker::isEntityTranslatable	protected	function	Checks, if an entity is translatable.
Tracker::isTrackedEntityType	public	function	Checks, if an entity type is among the tracked entity types. Overrides TrackerInterface::isTrackedEntityType
Tracker::setConfiguration	public	function	Sets configuration values and triggers rescanning of menus as needed. Overrides TrackerInterface::setConfiguration
Tracker::setTrackAllMenus	protected	function	Sets all menus option to track and update database table accordingly.
Tracker::setTrackedEntityTypes	protected	function	Sets entity types to track and updates database table accordingly.
Tracker::setTrackedMenus	protected	function	Sets menus to track and updates database table accordingly.
Tracker::setViewsData	public	function	Sets optional views data manager dependency, if available.
Tracker::trackMenus	protected	function	Scans menu links in menus for references to target entities via Batch API.
Tracker::untrackEntityTypeIds	protected	function	Deletes all tracked records for target entity types.
Tracker::untrackMenus	protected	function	Deletes all tracked records for menus.
Tracker::updateEntity	public	function	Updates database tracking for new or updated entities. Overrides TrackerInterface::updateEntity
Tracker::__construct	public	function	Constructs the Tracker object.

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class Tracker in Menu Entity Index 8

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