public function sendNotificationsByArchive(\DataContainer &$dc)
 {
     if ($dc->objModule === null || $dc->objModule->type != \HeimrichHannot\Submissions\Creator\SubmissionCreator::MODULE_SUBMISSION_READER) {
         return;
     }
     $objSubmission = SubmissionModel::findByPk($dc->id);
     if ($objSubmission === null) {
         return;
     }
     // send notifications
     SubmissionModel::sendConfirmationNotification($objSubmission->id);
     SubmissionModel::sendSubmissionNotification($objSubmission->id);
 }