symfony2 - FOSUserBundle -根据当前区域设置从地址发送电子邮件

use FOS\UserBundle\Mailer\MailerInterface;
use Symfony\Component\Routing\Generator\UrlGeneratorInterface;

class UserController
{
    private $mailer;
    private $router;

    public function __construct(MailerInterface $mailer, UrlGeneratorInterface $router)
    {
        $this->mailer = $mailer;
        $this->router = $router;
    }

    public function sendEmailAction($user, $locale)
    {
        // 根据用户的区域设置选择发送地址
        $fromAddress = $this->getFromAddressByLocale($locale);

        // 使用FOSUserBundle的API发送电子邮件
        $this->mailer->sendConfirmationEmailMessage($user, $fromAddress);
    }

    private function getFromAddressByLocale($locale)
    {
        // 根据当前区域设置选择发送地址
        switch ($locale) {
            case 'en':
                return 'info@example.com';
            case 'fr':
                return 'info-fr@example.com';
            // 其他语言和地区的发送地址
            // ...
            default:
                return 'info@example.com';
        }
    }
}