/**
* {@inheritdoc}
*/
public function submitForm(array &$form, FormStateInterface $form_state)
{
$this->revision->setNewRevision();
// Make this the new default revision for the node.
$this->revision->isDefaultRevision(TRUE);
// The revision timestamp will be updated when the revision is saved. Keep the
// original one for the confirmation message.
$original_revision_timestamp = $this->revision->getRevisionCreationTime();
$this->revision->revision_log = t('Copy of the revision from %date.', array('%date' => format_date($original_revision_timestamp)));
$this->revision->save();
$this->logger('content')->notice('@type: reverted %title revision %revision.', array('@type' => $this->revision->bundle(), '%title' => $this->revision->label(), '%revision' => $this->revision->getRevisionId()));
drupal_set_message(t('@type %title has been reverted to the revision from %revision-date.', array('@type' => node_get_type_label($this->revision), '%title' => $this->revision->label(), '%revision-date' => format_date($original_revision_timestamp))));
$form_state->setRedirect('entity.node.version_history', array('node' => $this->revision->id()));
}
/**
* {@inheritdoc}
*/
public function submitForm(array &$form, array &$form_state)
{
$this->revision->setNewRevision();
// Make this the new default revision for the node.
$this->revision->isDefaultRevision(TRUE);
// The revision timestamp will be updated when the revision is saved. Keep the
// original one for the confirmation message.
$original_revision_timestamp = $this->revision->getRevisionCreationTime();
$this->revision->revision_log = t('Copy of the revision from %date.', array('%date' => format_date($original_revision_timestamp)));
$this->revision->save();
watchdog('content', '@type: reverted %title revision %revision.', array('@type' => $this->revision->bundle(), '%title' => $this->revision->label(), '%revision' => $this->revision->getRevisionId()));
drupal_set_message(t('@type %title has been reverted back to the revision from %revision-date.', array('@type' => node_get_type_label($this->revision), '%title' => $this->revision->label(), '%revision-date' => format_date($original_revision_timestamp))));
$form_state['redirect_route'] = array('route_name' => 'node.revision_overview', 'route_parameters' => array('node' => $this->revision->id()));
}
/**
* Checks node revision access.
*
* @param \Drupal\node\NodeInterface $node
* The node to check.
* @param \Drupal\Core\Session\AccountInterface $account
* A user object representing the user for whom the operation is to be
* performed.
* @param string $op
* (optional) The specific operation being checked. Defaults to 'view.'
*
* @return bool
* TRUE if the operation may be performed, FALSE otherwise.
*/
public function checkAccess(NodeInterface $node, AccountInterface $account, $op = 'view')
{
$map = array('view' => 'view all revisions', 'update' => 'revert all revisions', 'delete' => 'delete all revisions');
$bundle = $node->bundle();
$type_map = array('view' => "view {$bundle} revisions", 'update' => "revert {$bundle} revisions", 'delete' => "delete {$bundle} revisions");
if (!$node || !isset($map[$op]) || !isset($type_map[$op])) {
// If there was no node to check against, or the $op was not one of the
// supported ones, we return access denied.
return FALSE;
}
// Statically cache access by revision ID, language code, user account ID,
// and operation.
$langcode = $node->language()->getId();
$cid = $node->getRevisionId() . ':' . $langcode . ':' . $account->id() . ':' . $op;
if (!isset($this->access[$cid])) {
// Perform basic permission checks first.
if (!$account->hasPermission($map[$op]) && !$account->hasPermission($type_map[$op]) && !$account->hasPermission('administer nodes')) {
$this->access[$cid] = FALSE;
return FALSE;
}
// There should be at least two revisions. If the vid of the given node
// and the vid of the default revision differ, then we already have two
// different revisions so there is no need for a separate database check.
// Also, if you try to revert to or delete the default revision, that's
// not good.
if ($node->isDefaultRevision() && ($this->nodeStorage->countDefaultLanguageRevisions($node) == 1 || $op == 'update' || $op == 'delete')) {
$this->access[$cid] = FALSE;
} elseif ($account->hasPermission('administer nodes')) {
$this->access[$cid] = TRUE;
} else {
// First check the access to the default revision and finally, if the
// node passed in is not the default revision then access to that, too.
$this->access[$cid] = $this->nodeAccess->access($this->nodeStorage->load($node->id()), $op, $account) && ($node->isDefaultRevision() || $this->nodeAccess->access($node, $op, $account));
}
}
return $this->access[$cid];
}
/**
* Prepares a revision to be reverted.
*
* @param \Drupal\node\NodeInterface $revision
* The revision to be reverted.
* @param \Drupal\Core\Form\FormStateInterface $form_state
* The current state of the form.
*
* @return \Drupal\node\NodeInterface
* The prepared revision ready to be stored.
*/
protected function prepareRevertedRevision(NodeInterface $revision, FormStateInterface $form_state)
{
$revision->setNewRevision();
$revision->isDefaultRevision(TRUE);
return $revision;
}
/**
* 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;
}
