public function updateSettings()
    {
        $settings = \Input::all();

        foreach ($settings as $key => $value) {
            $option = str_replace('_', '.', $key);

            Option::findByKey($option)->update([
                'value' => $value,
            ]);
        }

        return \Redirect::back()->withFlashMessage('Settings has been successfully updated!');
    }