Builds a link to revert an entity revision.

Parameters

\Drupal\Core\Entity\RevisionableInterface $revision: The entity to build a revert revision link for.

Return value

array|null A link to revert an entity revision, or NULL if the entity type does not have an a route to revert an entity revision.

1 call to VersionHistoryController::buildRevertRevisionLink()

VersionHistoryController::getOperationLinks in core/lib/Drupal/Core/Entity/Controller/VersionHistoryController.php

Get operations for an entity revision.

File

core/lib/Drupal/Core/Entity/Controller/VersionHistoryController.php, line 89

Class

VersionHistoryController

Provides a controller showing revision history for an entity.

Namespace

Drupal\Core\Entity\Controller

Code

protected function buildRevertRevisionLink(RevisionableInterface $revision) : ?array {
  if (!$revision->hasLinkTemplate('revision-revert-form')) {
    return NULL;
  }
  $url = $revision->toUrl('revision-revert-form');
  // @todo Merge in cacheability after
  // https://www.drupal.org/project/drupal/issues/2473873.
  if (!$url->access()) {
    return NULL;
  }
  return [
    'title' => $this->t('Revert'),
    'url' => $url,
  ];
}

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