如果Symfony 3中缺少参数，如何重定向到登录页面

Question

I have the following code in Symfony 3 where some users have the wrong links and Symfony is showing a blank page for it. The code is something like this:

/**
   * @Route(
   *   "/account/reset-password/{user_id}/{hash}",
   *   name="reset_password"
   * )
   */
  public function accountResetPasswordAction(Request $request, $user_id, $hash) {}

/account/reset-password/1/abcd - this will be proper url

/account/reset-password//abcd - is there anyway I can redirect this to a login page?

Answer 1

There are two ways here, depending on your needs.

First, with full control where to send the user.

 /**
   * @Route(
   *   "/account/reset-password/{user_id}/{hash}",
   *   name="reset_password"
   * )
   */
  public function accountResetPasswordAction(Request $request, $user_id = null, $hash = null) {
    if (!$user_id || !$hash) {
      return $this->redirectToRoute('your_login_route');
    }
  }

---

If you are OK with a 404 page instead, you can put requirements on those two parameters.

/**
  * @Route(
  *   "/account/reset-password/{user_id}/{hash}",
  *   name="reset_password",
  *   requirements={"user_id":"\d+", "hash":"[a-zA-Z0-9]+"}
  * )
  */