Gets entity revisions from the persistent cache backend.

Parameters

int[] &$ids: Revision IDs to load from the revision cache. IDs that were found will be removed from the list.

Return value

\Drupal\Core\Entity\ContentEntityInterface[] Array of entities from the persistent cache.

2 calls to ContentEntityStorageBase::getFromPersistentRevisionCache()

ContentEntityStorageBase::loadMultipleRevisions in core/lib/Drupal/Core/Entity/ContentEntityStorageBase.php

Loads multiple entity revisions.

ContentEntityStorageBase::loadRevisionUnchanged in core/lib/Drupal/Core/Entity/ContentEntityStorageBase.php

Loads an unchanged entity by revision ID from the database.

File

core/lib/Drupal/Core/Entity/ContentEntityStorageBase.php, line 1255

Class

ContentEntityStorageBase

Base class for content entity storage handlers.

Namespace

Drupal\Core\Entity

Code

protected function getFromPersistentRevisionCache(array &$ids) : array {
  if (!$this->entityType
    ->isPersistentlyCacheable() || empty($ids)) {
    return [];
  }
  $entities = [];
  // Build the list of cache entries to retrieve.
  $cid_map = [];
  foreach ($ids as $id) {
    $cid_map[$id] = $this->buildRevisionCacheId($id);
  }
  $cids = array_values($cid_map);
  if ($cache = $this->cacheBackend
    ->getMultiple($cids)) {
    // Get the entities that were found in the cache.
    foreach ($ids as $index => $id) {
      $cid = $cid_map[$id];
      if (isset($cache[$cid])) {
        $entities[$id] = $cache[$cid]->data;
        unset($ids[$index]);
      }
    }
  }
  return $entities;
}

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