public function cmdOffModule()
    {
        $id = $this->getParam(0);

        if (empty($id)) {
            $this->errorAndExit($this->text('Invalid argument'));
        }

        $result = $this->module_model->disable($id);

        if ($result !== true) {
            $this->errorAndExit($result);
        }

        $this->output();
    }