/** * Prepares a revision to be reverted. * * @param \Drupal\node\NodeInterface $revision * The revision to be reverted. * * @return \Drupal\node\NodeInterface * The prepared revision ready to be stored. */ protected function prepareRevertedRevision(NodeInterface $revision) { /** @var \Drupal\node\NodeInterface $default_revision */ $default_revision = $this->nodeStorage->load($revision->id()); // If the entity is translated, make sure only translations affected by the // specified revision are reverted. $languages = $default_revision->getTranslationLanguages(); if (count($languages) > 1) { // @todo Instead of processing all the available translations, we should // let the user decide which translations should be reverted. See // https://www.drupal.org/node/2465907. foreach ($languages as $langcode => $language) { if ($revision->hasTranslation($langcode) && !$revision->getTranslation($langcode)->isRevisionTranslationAffected()) { $revision_translation = $revision->getTranslation($langcode); $default_translation = $default_revision->getTranslation($langcode); foreach ($default_revision->getFieldDefinitions() as $field_name => $definition) { if ($definition->isTranslatable()) { $revision_translation->set($field_name, $default_translation->get($field_name)->getValue()); } } } } } $revision->setNewRevision(); $revision->isDefaultRevision(TRUE); return $revision; }