public function update($id)
    {
        $model = ApiUsers::query()->findOrFail($id);
        $form  = $this->getForm($model);
        $url   = url()->previous();
        if (!$form->isValid()) {
            return $this->redirectWithErrors($url, $form->getMessageBag());
        }
        $model->enabled = input('api', 'off') === 'on';
        if (!is_null($whitelist      = input('whitelist'))) {
            $model->whitelist = $whitelist;
        }
        if (!$model->save()) {
            return $this->redirectWithMessage($url, trans('antares/api::response.user_config_not_saved'), 'error');
        }
        return $this->redirectWithMessage($url, trans('antares/api::response.user_config_saved'));
    }