class BlockContentUuidLookup

Same name and namespace in other branches
  1. 11.x core/modules/block_content/src/BlockContentUuidLookup.php \Drupal\block_content\BlockContentUuidLookup
  2. 10 core/modules/block_content/src/BlockContentUuidLookup.php \Drupal\block_content\BlockContentUuidLookup
  3. 8.9.x core/modules/block_content/src/BlockContentUuidLookup.php \Drupal\block_content\BlockContentUuidLookup

A cache collector that caches IDs for block_content UUIDs.

As block_content entities are used as block plugin derivatives, it is a fairly safe limitation that there are not hundreds of them, a site will likely run into problems with too many block content entities in other places than a cache that only stores UUID's and IDs. The same assumption is not true for other content entities.

@internal

Hierarchy

Expanded class hierarchy of BlockContentUuidLookup

1 file declares its use of BlockContentUuidLookup
BlockContentBlock.php in core/modules/block_content/src/Plugin/Block/BlockContentBlock.php
1 string reference to 'BlockContentUuidLookup'
block_content.services.yml in core/modules/block_content/block_content.services.yml
core/modules/block_content/block_content.services.yml
1 service uses BlockContentUuidLookup
block_content.uuid_lookup in core/modules/block_content/block_content.services.yml
\Drupal\block_content\BlockContentUuidLookup

File

core/modules/block_content/src/BlockContentUuidLookup.php, line 21

Namespace

Drupal\block_content
View source
class BlockContentUuidLookup extends CacheCollector {
  
  /**
   * The entity type manager.
   *
   * @var \Drupal\Core\Entity\EntityTypeManagerInterface
   */
  protected $entityTypeManager;
  
  /**
   * Constructs a BlockContentUuidLookup instance.
   *
   * @param \Drupal\Core\Cache\CacheBackendInterface $cache
   *   The cache backend.
   * @param \Drupal\Core\Lock\LockBackendInterface $lock
   *   The lock backend.
   * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager
   *   The entity type manager.
   */
  public function __construct(CacheBackendInterface $cache, LockBackendInterface $lock, EntityTypeManagerInterface $entity_type_manager) {
    parent::__construct('block_content_uuid', $cache, $lock);
    $this->entityTypeManager = $entity_type_manager;
  }
  
  /**
   * {@inheritdoc}
   */
  protected function resolveCacheMiss($key) {
    $ids = $this->entityTypeManager
      ->getStorage('block_content')
      ->getQuery()
      ->accessCheck(FALSE)
      ->condition('uuid', $key)
      ->execute();
    // Only cache if there is a match, otherwise creating new entities would
    // require to invalidate the cache.
    $id = reset($ids);
    if ($id) {
      $this->storage[$key] = $id;
      $this->persist($key);
    }
    return $id;
  }

}

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