gistfile1.php

    public function deleteAction($identifier) {
        $this->user = \User\User::instanceWithId($identifier);
        if (!$this->user) {
            return self::NotFoundStatus;
        }
        
        if ($this->request->isConfirmed()) {
            $this->user->delete();
            $this->response->layoutVariant = 'Successful';
            return self::DeletedStatus;
        }
        
        return self::SuccessStatus;
    }