function ContentEntityBase::setNewRevision

File

core/lib/Drupal/Core/Entity/ContentEntityBase.php, line 303

Class

ContentEntityBase

Implements Entity Field API specific enhancements to the Entity class.

Namespace

Code

public function setNewRevision($value = TRUE) {
  if (!$this->getEntityType()
    ->hasKey('revision')) {
    throw new \LogicException("Entity type {$this->getEntityTypeId()} does not support revisions.");
  }
  if ($value && !$this->newRevision) {
    // When saving a new revision, set any existing revision ID to NULL so as
    // to ensure that a new revision will actually be created.
    $this->set($this->getEntityType()
      ->getKey('revision'), NULL);
  }
  elseif (!$value && $this->newRevision) {
    // If ::setNewRevision(FALSE) is called after ::setNewRevision(TRUE) we
    // have to restore the loaded revision ID.
    $this->set($this->getEntityType()
      ->getKey('revision'), $this->getLoadedRevisionId());
  }
  $this->newRevision = $value;
}