function VersionHistoryController::loadRevisions

Same name in other branches
  1. 11.x core/lib/Drupal/Core/Entity/Controller/VersionHistoryController.php \Drupal\Core\Entity\Controller\VersionHistoryController::loadRevisions()

Generates revisions of an entity relevant to the current language.

Parameters

\Drupal\Core\Entity\RevisionableInterface $entity: The entity.

Return value

\Generator|\Drupal\Core\Entity\RevisionableInterface Generates revisions.

1 call to VersionHistoryController::loadRevisions()
VersionHistoryController::revisionOverview in core/lib/Drupal/Core/Entity/Controller/VersionHistoryController.php
Generates an overview table of revisions of an entity.

File

core/lib/Drupal/Core/Entity/Controller/VersionHistoryController.php, line 207

Class

VersionHistoryController
Provides a controller showing revision history for an entity.

Namespace

Drupal\Core\Entity\Controller

Code

protected function loadRevisions(RevisionableInterface $entity) {
    $entityType = $entity->getEntityType();
    $translatable = $entityType->isTranslatable();
    $entityStorage = $this->entityTypeManager
        ->getStorage($entity->getEntityTypeId());
    assert($entityStorage instanceof RevisionableStorageInterface);
    $result = $entityStorage->getQuery()
        ->accessCheck(FALSE)
        ->allRevisions()
        ->condition($entityType->getKey('id'), $entity->id())
        ->sort($entityType->getKey('revision'), 'DESC')
        ->pager(self::REVISIONS_PER_PAGE)
        ->execute();
    $currentLangcode = $this->languageManager
        ->getCurrentLanguage(LanguageInterface::TYPE_CONTENT)
        ->getId();
    foreach ($entityStorage->loadMultipleRevisions(array_keys($result)) as $revision) {
        // Only show revisions that are affected by the language that is being
        // displayed.
        if (!$translatable || $revision->hasTranslation($currentLangcode) && $revision->getTranslation($currentLangcode)
            ->isRevisionTranslationAffected()) {
            (yield $translatable ? $revision->getTranslation($currentLangcode) : $revision);
        }
    }
}

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