public function createEmptyEvent($organization_id)
 {
     $newEvent = parent::create(array('organization_id' => $organization_id));
     $registrationForm = new EventRegistrationForm();
     $newEvent->registration_form()->save($registrationForm);
     return $newEvent;
 }
 public function createEmptyEventSite($event_id)
 {
     return parent::create(array('event_id' => $event_id));
 }