ActivityController::deleteComment PHP Метод

    public function deleteComment($ID, $TK, $Target = '')
    {
        $session = Gdn::session();
        if (!$session->validateTransientKey($TK)) {
            throw permissionException();
        }
        if (!is_numeric($ID)) {
            throw Gdn_UserException('Invalid ID');
        }
        $comment = $this->ActivityModel->getComment($ID);
        if (!$comment) {
            throw notFoundException('Comment');
        }
        $activity = $this->ActivityModel->getID(val('ActivityID', $comment));
        if (!$activity) {
            throw notFoundException('Activity');
        }
        if (!$this->ActivityModel->canDelete($activity)) {
            throw permissionException();
        }
        $this->ActivityModel->deleteComment($ID);
        if ($this->deliveryType() === DELIVERY_TYPE_ALL) {
            redirect($Target);
        }
        $this->render('Blank', 'Utility', 'Dashboard');
    }