How do I force a Laravel 5.6 redirect from a RedirectResponse object?

• lufc 问题:
  • I have a custom non-Eloquent class called

    Item

    . In the constructor, the

    Item

    attempts to authenticate with my app. I then have an

    Auth()

    method to check whether the authentication was successful, and if not to fire a redirect.

  • public function Auth() {    if (isset($this->authenticated)) {        return $this;    } else {        return redirect('/auth');    }}

  • I use the

    Auth

    method to access

    Item

    statically via a

    Item

    Facade. The intended outcome is that if the Item is authenticated, we proceed to the Index with that Item as a variable. If not the redirect would be triggered.

  • public function index() {    $item = Item::Auth();    return view('index',$item);}

  • However, if not authenticated, all that happens is a Laravel

    RedirectResponse

    object is passed to the index view. How can I force that redirect to actually fire?
  • 我想过但不喜欢的解决方案

  • if ($item instanceOf RedirectResponse)...

    in the controller, but this feels clunky

  • $item = new Item; if ($item->authenticated)...

    this is fine for the controller but I want to trigger the redirect from multiple parts of the app so there would be a lot of code re-use which doesn't feel efficient.
  • 谢谢你的帮助。要么在正面，要么触发重定向对象。
• 回答:
  • apokryfos - vote: 0
    • You can handle this case by using an

      AuthenticationException

      :

    • public function Auth() {    if (isset($this->authenticated)) {        return $this;    }     throw new AuthenticationException();}

    • The authentication exception will generate either a redirect to login or a 401 error on JSON routes. You can of course throw a different exception and handle it as a redirect in your

      App\Exceptions\Handler

      class
    • 例如：

    • public function Auth() {    if (isset($this->authenticated)) {        return $this;    }     throw new ItemNotAuthorizedException(); //Custom class you need to create}

    • In

      Handler.php

      :

    •  public function render($request, Exception $exception) {    if ($exception instanceof ItemNotAuthorizedException) {       return redirect("/auth");    }    return parent::render($request, $exception); }

    • 注意：Laravel 5.6可能也允许异常实现其自己的渲染功能，但您应该参考文档了解这一点。