public static function Group::preDelete in RNG - Events and Registrations 8

Same name and namespace in other branches

1. 8.2 src/Entity/Group.php \Drupal\rng\Entity\Group::preDelete()
2. 3.x src/Entity/Group.php \Drupal\rng\Entity\Group::preDelete()

Parameters

static[] $entities: An array of registration_group entities.

Overrides EntityBase::preDelete

File

src/Entity/Group.php, line 214

Class

Group

Defines the application group entity class.

Namespace

Drupal\rng\Entity

Code

public static function preDelete(EntityStorageInterface $storage, array $entities) {

  /** @var \Drupal\rng\EventManagerInterface $event_manager */
  $event_manager = \Drupal::service('rng.event_manager');
  foreach ($entities as $group) {
    if ($event = $group
      ->getEvent()) {

      // Dont bother if the entity is no longer an event, or event is deleted.
      try {
        $event_meta = $event_manager
          ->getMeta($event);

        // Remove entity field references from the event to group in
        // $event->{EventManagerInterface::FIELD_REGISTRATION_GROUPS}
        $event_meta
          ->removeGroup($group
          ->id())
          ->save();

        // Remove entity field references from registrations to group.
        foreach ($event_meta
          ->getRegistrations() as $registration) {
          $registration
            ->removeGroup($group
            ->id())
            ->save();
        }
      } catch (InvalidEventException $e) {
      }
    }
  }
}