Cakephp 使用Guzzle时如何将数据传递到侦听器？

我将Guzzle 3.8.1与CakePHP2.5.6结合使用，并调用Box API。我希望能够在访问令牌过期时刷新它。我遇到的问题是，我可能正在使用N个可能的访问令牌中的任意一个，并且我希望能够使用$account_id，该id在我定义它的函数的范围内。我不知道如何将它传递到侦听器定义的函数中，因为我自己并没有调用它。我确实看到$event变量中存在过期的access_令牌，但我必须找到它，然后从传递给Box的头解析它。我想我可以添加一个包含帐户id的自定义标题，但这似乎不是解决问题的好方法。我是否可以在请求中指定一个不会作为调用框的一部分添加的变量？非常感谢您的建议，谢谢

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请将代码缩短到相关部分，或者至少显示sour代码失败的地方，好吗？到目前为止，我真的不明白你的问题在哪里，尽管我有一种感觉，它可能通过闭包来解决-请看：它实际上归结为这一行：$account=$Box->refresh\u token$account\id；$account\u id超出范围。在快速查看之后，似乎您认为闭包应该处理它是正确的。我会试着抽时间回去，试着从那时起我就做了一个变通，继续前进。谢谢

public function get_folder_list ($account_id = null, $parent_folder_id = null) {
    // Get account
    $this->Account = ClassRegistry::init('Account');
    $account = $this->Account->findById($account_id);
    $this->Account->log($account);

    // If account doesn't exist, throw error
    if(empty($account)) {
        throw new NotFoundException(__('Account id not found: ' . $account_id));
    }

    // Call Box for folder list
    $box_url = "https://api.box.com/2.0/folders/";
    if (empty($parent_folder_id)) {
        $box_url .= "0";
    } else {
        $box_url .= $parent_folder_id;
    }
    $this->Account->log($box_url);
    $bearer = 'Bearer ' . $account['Account']['access_token'];
    $client = new Guzzle\Http\Client();

    $client->getEventDispatcher()->addListener('request.error', function(Event $event) {
        if ($event['response']->getStatusCode() == 401) {
            $Account = new Account;
            $Account->log($event);
            $Box = new BoxLib;                
            $account = $Box->refresh_token($account_id);
            $bearer = 'Bearer ' . $account['Account']['access_token'];
            $request = $client->get($box_url, array('Authorization' => $bearer));
            $event['response'] = $newResponse;

            $event->stopPropagation();
        }
    });
    $request = $client->get($box_url, array('Authorization' => $bearer));

     try {
        $response = $request->send();
     } catch (Guzzle\Http\Exception\BadResponseException $e) {
        // HTTP codes 4xx and 5xx throw BadResponseException
        $this->Account->log('Service exception!');
        $this->Account->log('Uh oh! ' . $e->getMessage());
        $this->Account->log('HTTP request URL: ' . $e->getRequest()->getUrl() . "\n");
        $this->Account->log('HTTP request: ' . $e->getRequest() . "\n");
        $this->Account->log('HTTP response status: ' . $e->getResponse()->getStatusCode() . "\n");
        $this->Account->log('HTTP response: ' . $e->getResponse() . "\n");            
     }

    $this->Account->log($response->json());
    $json = $response->json();

    $folder_list = array();
    foreach ($json['item_collection']['entries'] as $folder) {
        $folder_list[$folder['id']] = $folder['name'];
    }       
    //$this->Account->log($folder_list);

    return $folder_list;
}