OEModule\PatientTicketing\controllers\AdminController::actionAddQueue PHP Method

    public function actionAddQueue($parent_id = null)
    {
        $parent = null;
        $queue = new models\Queue();
        if ($parent_id) {
            if (!($parent = models\Queue::model()->findByPk($parent_id))) {
                throw new \CHttpException(404, "Queue not found with id {$parent_id}");
            }
            $queue->is_initial = false;
        }
        if (!empty($_POST)) {
            if (@$_POST['parent_id']) {
                if (!($parent = models\Queue::model()->findByPk($_POST['parent_id']))) {
                    throw new \CHttpException(404, "Queue not found with id {$_POST['parent_id']}");
                }
            }
            $this->saveQueue($queue, $parent);
        } else {
            $this->renderPartial('form_queue', array('parent' => $parent, 'queue' => $queue, 'errors' => null));
        }
    }