EntityDuplicateFormTrait.php in Entity API 8
Namespace
Drupal\entity\FormFile
src/Form/EntityDuplicateFormTrait.phpView source
<?php
namespace Drupal\entity\Form;
use Drupal\Core\Entity\EntityInterface;
use Drupal\entity\Event\EntityDuplicateEvent;
use Drupal\entity\Event\EntityEvents;
/**
* Allows forms to implement EntityDuplicateFormInterface.
*
* Forms are expected to call $this->postSave() after the entity is saved.
* This works around core issue #3040556.
*/
trait EntityDuplicateFormTrait {
/**
* The source entity.
*
* @var \Drupal\Core\Entity\EntityInterface
*/
protected $sourceEntity;
/**
* {@inheritdoc}
*/
public function getSourceEntity() {
return $this->sourceEntity;
}
/**
* {@inheritdoc}
*/
public function setSourceEntity(EntityInterface $source_entity) {
$this->sourceEntity = $source_entity;
return $this;
}
/**
* Invokes entity duplicate hooks after the entity has been duplicated.
*
* @param \Drupal\Core\Entity\EntityInterface $entity
* The saved entity.
* @param string $operation
* The form operation.
*/
protected function postSave(EntityInterface $entity, $operation) {
if ($operation == 'duplicate') {
// An event is used instead of a hook to prevent a conflict with core
// once hook_entity_duplicate() is introduced there.
$event = new EntityDuplicateEvent($entity, $this->sourceEntity);
/** @var \Symfony\Component\EventDispatcher\EventDispatcherInterface $event_dispatcher */
$event_dispatcher = \Drupal::service('event_dispatcher');
$event_dispatcher
->dispatch(EntityEvents::ENTITY_DUPLICATE, $event);
}
}
}
Traits
Name![]() |
Description |
---|---|
EntityDuplicateFormTrait | Allows forms to implement EntityDuplicateFormInterface. |