Question

我正在使用symfony2和FOSUserBundle。

通常，我可以从Controller获取用户数据

$user = $this->get('security.context')->getToken()->getUser();

或

$user = $this->container->get('security.context')->getToken()->getUser();

但是现在，我想从eventlistner获取从Ajax调用的userdata。

有可能吗？不是吗？

我的来源就在这里。

    namespace Acme\MemberBundle\EventListener;

    use ADesigns\CalendarBundle\Event\CalendarEvent;
    use ADesigns\CalendarBundle\Entity\EventEntity;
    use Doctrine\ORM\EntityManager;

    class CalendarEventListener
    {
        private $entityManager;

        public function __construct(EntityManager $entityManager)
        {
            $this->entityManager = $entityManager;
        }

        public function loadEvents(CalendarEvent $calendarEvent)
        {
            $startDate = $calendarEvent->getStartDatetime();
            $endDate = $calendarEvent->getEndDatetime();


           $user = $this->container->get('security.context')->getToken()->getUser();//it doesnt work

            // load events using your custom logic here,
            // for instance, retrieving events from a repository

            $companyEvents = $this->entityManager->getRepository('UserBundle:MutorSche')
                    ->createQueryBuilder('company_events')
                    ->where('company_events.event_datetime BETWEEN :startDate and :endDate')
                    ->setParameter('startDate', $startDate->format('Y-m-d H:i:s'))
                    ->setParameter('endDate', $endDate->format('Y-m-d H:i:s'))
                    ->getQuery()->getResults();



            foreach($companyEvents as $companyEvent) {

                // create an event with a start/end time, or an all day event
                if ($companyEvent->getAllDayEvent() === false) {
                    $eventEntity = new EventEntity($companyEvent->getTitle(), $companyEvent->getStartDatetime(), $companyEvent->getEndDatetime());
                } else {
                    $eventEntity = new EventEntity($companyEvent->getTitle(), $companyEvent->getStartDatetime(), null, true);
                }

                //optional calendar event settings
                $eventEntity->setAllDay(true); // default is false, set to true if this is an all day event
                $eventEntity->setBgColor('#FF0000'); //set the background color of the event's label
                $eventEntity->setFgColor('#FFFFFF'); //set the foreground color of the event's label
                $eventEntity->setUrl('http://www.google.com'); // url to send user to when event label is clicked
                $eventEntity->setCssClass('my-custom-class'); // a custom class you may want to apply to event labels

                //finally, add the event to the CalendarEvent for displaying on the calendar
                $calendarEvent->addEvent($eventEntity);
            }
        }
    }

根据@nifr的建议。

我在源代码中改变了一点

class CalendarEventListener
{
    private $entityManager;
    private $container;//add

    public function __construct(
            EntityManager $entityManager,
            ContainerInterface $container)//add
    {
        $this->entityManager = $entityManager;
        $this->container = $container;//add
    }

然后我想将第二个参数传递给eventlistner。我正在使用services.xml来创建监听器。我怎样才能在此添加第二个参数？

 <?xml version="1.0" encoding="UTF-8" ?>
      <container xmlns="http://symfony.com/schema/dic/services">

        <services>
            <service id="acme.memberbundle.calendar_listener" class="Acme\MemberBundle\EventListener\CalendarEventListener">
                <argument type="service" id="doctrine.orm.entity_manager" />
                <tag name="kernel.event_listener" event="calendar.load_events" method="loadEvents" />
            </service>

        </services>
      </container>

Answer 1

从Symfony 2.6开始，这个问题应该修复。拉取请求刚刚被主人接受。您的问题在此处描述。 https://github.com/symfony/symfony/pull/11690

从Symfony 2.6开始，您可以将security.token_storage注入您的监听器。此服务将包含SecurityContext在＆lt; = 2.5中使用的令牌。在3.0中，此服务将完全替换SecurityContext::getToken()。您可以在此处查看基本更改列表：http://symfony.com/blog/new-in-symfony-2-6-security-component-improvements#deprecated-the-security-context-service

2.6中的用法示例：

您的配置：

services:
    my.listener:
        class: EntityListener
        arguments:
            - "@security.token_storage"
        tags:
            - { name: doctrine.event_listener, event: prePersist }

您的听众

use Doctrine\ORM\Event\LifecycleEventArgs;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface;

class EntityListener
{
    private $token_storage;

    public function __construct(TokenStorageInterface $token_storage)
    {
        $this->token_storage = $token_storage;
    }

    public function prePersist(LifeCycleEventArgs $args)
    {
        $entity = $args->getEntity();
        $entity->setCreatedBy($this->token_storage->getToken()->getUsername());
    }
}

Answer 2

您需要通过Dependency Injection将容器注入您的侦听器类，以便进行操作。

在book chapter中了解更多相关信息。

your.listener:
    class: Acme\MemberBundle\EventListener\CalendarEventListener
    arguments: ["@service_container"]

尽管注入整个容器在性能方面并不是最好的想法，但还有一些其他原因，比如可测试性（你通常只需要在你的类而不是容器中注入你需要的服务）......

...在您的情况下，如果您不使用UserCallable，则在注入@security.context时将获得循环引用。

所以最快的解决方案是注入容器并调整监听器的构造函数：

private $container;

public function __construct(ContainerInterface $container)
{
    $this->container = $container;
}



public function someOtherMethod()
{
    $user = $this->container->get('security.context')->getToken()->getUser();

    // ...
}

Answer 3

确保没有启用$this->container->get('security.context')->getToken()。我不知道为什么，但每次都null返回config_dev.yml。

在文件中，web_profiler: toolbar: false确保设置以下内容：

{{1}}

如何从eventlistener获取从AJAX调用的userid

3 个答案: