class EntityChangedConstraintValidator in Drupal 8

Validates the EntityChanged constraint.

Hierarchy

• class \Drupal\Core\Entity\Plugin\Validation\Constraint\EntityChangedConstraintValidator extends \Symfony\Component\Validator\ConstraintValidator

File

core/lib/Drupal/Core/Entity/Plugin/Validation/Constraint/EntityChangedConstraintValidator.php, line 11

Namespace

Drupal\Core\Entity\Plugin\Validation\Constraint

class EntityChangedConstraintValidator extends ConstraintValidator {

  /**
   * {@inheritdoc}
   */
  public function validate($entity, Constraint $constraint) {
    if (isset($entity)) {

      /** @var \Drupal\Core\Entity\EntityInterface $entity */
      if (!$entity
        ->isNew()) {
        $saved_entity = \Drupal::entityTypeManager()
          ->getStorage($entity
          ->getEntityTypeId())
          ->loadUnchanged($entity
          ->id());

        // Ensure that all the entity translations are the same as or newer
        // than their current version in the storage in order to avoid
        // reverting other changes. In fact the entity object that is being
        // saved might contain an older entity translation when different
        // translations are being concurrently edited.
        if ($saved_entity) {
          $common_translation_languages = array_intersect_key($entity
            ->getTranslationLanguages(), $saved_entity
            ->getTranslationLanguages());
          foreach (array_keys($common_translation_languages) as $langcode) {

            // Merely comparing the latest changed timestamps across all
            // translations is not sufficient since other translations may have
            // been edited and saved in the meanwhile. Therefore, compare the
            // changed timestamps of each entity translation individually.
            if ($saved_entity
              ->getTranslation($langcode)
              ->getChangedTime() > $entity
              ->getTranslation($langcode)
              ->getChangedTime()) {
              $this->context
                ->addViolation($constraint->message);
              break;
            }
          }
        }
      }
    }
  }

}

Members

Name	Modifiers	Type	Description	Overrides
EntityChangedConstraintValidator::validate	public	function	Checks if the passed value is valid.