Question

我需要使用Document模型返回完整回复。我有回应，但没有一些字段，这些字段在实体中定义。例如，我需要回应“广告系列”和“模板”属性 - 但实际上“广告系列”不存在。

以下是我的控制器和实体。

我在我的控制器中有这样的动作：

/**
 * @REST\View(serializerGroups={"Default", "DocumentDetails"})
 * @REST\Get("/{id}", requirements={"id" = "\d+"})
 * @ParamConverter("document", class="AppBundle:Document");
 */
public function showAction(Request $request, Document $document)
{
    return $document;
}

但是Document实体有关系：

/**
* Document entity
 *
 * @ORM\Entity(repositoryClass="AppBundle\Repository\DocumentRepository")
 * @ORM\Table(name="document")
 * @ORM\HasLifecycleCallbacks()
 *
 * @Serializer\ExclusionPolicy("all")
 */
class Document
{
.......

/**
 * @var campaign
 * @ORM\ManyToOne(targetEntity="Campaign", inversedBy="documents")
 * @ORM\JoinColumn(name="campaign", referencedColumnName="id")
 *
 * @Serializer\Expose()
 */
protected $campaign; // **THIS FIELD IS ABSENT - WHY !???** 

/**
 * @var DocumentTemplate Szablon dokumentu
 *
 * @ORM\ManyToOne(targetEntity="DocumentTemplate")
 * @ORM\JoinColumn(name="template_id", referencedColumnName="id")
 *
 * @Serializer\Expose()
 */
protected $template; // **THIS PROPERTY IS DISPLAYED**

.......

$document->template出现在$ document响应中。但$document->campaign缺席。怎么了？可能它与某种方式有关serializerGroups ??谢谢你的帮助。

Answer 1

解决了！谢谢大家的帮助。该问题与JMSSerializer有关。首先需要在配置文件services.yml中设置此序列化程序：

app.serializer.listener.document:
    class: AppBundle\EventListener\Serializer\DocumentSerializationListener
    tags:
        - { name: jms_serializer.event_subscriber }

然后创建这个创建表单子字段campaign并在其中插入Campaign对象的侦听器：

<?php


namespace AppBundle\EventListener\Serializer;


use AppBundle\Entity\Campaign;
use AppBundle\Entity\Document;
use JMS\Serializer\EventDispatcher\EventSubscriberInterface;
use JMS\Serializer\EventDispatcher\ObjectEvent;

class DocumentSerializationListener implements EventSubscriberInterface
{
    /**
     * @param ObjectEvent $event
     * @return void
     */
    public function onPostSerialize(ObjectEvent $event)
    {
        $entity = $event->getObject();

        if (!($entity instanceof Document)) {
            return ;
        }

        $groups = $event->getContext()->attributes->get('groups')->getOrElse([]);

        if (in_array('DocumentDetails', $groups)) {
            $visitor = $event->getVisitor();

            $campaign = $this->getCampaignClone($entity->getCampaign());

            if ($visitor->hasData('campaign')) {
                $visitor->setData('campaign', $campaign);
            } else {
                $visitor->addData('campaign', $campaign);
            }
        }
    }

    /**
     * @inheritdoc
     */
    public static function getSubscribedEvents()
    {
        return [
            [
                'event' => 'serializer.post_serialize',
                'class' => 'AppBundle\Entity\Document',
                'method' => 'onPostSerialize'
            ]
        ];
    }

    private function getCampaignClone(Campaign $documentCampaign)
    {
        $campaign = new \stdClass();
        $campaign->id = $documentCampaign->getId();
        $campaign->title = $documentCampaign->getTitle();
        $campaign->status = $documentCampaign->getStatus();
        $campaign->rows = $documentCampaign->getRows();
        $campaign->createdAt = $documentCampaign->getCreatedAt()->format(DATE_W3C);
        $campaign->updatedAt = $documentCampaign->getUpdated()->format(DATE_W3C);

        return $campaign;
    }
}

我知道这看起来很奇怪 - 但我发现只有这个解决方案强制将实体插入到表单请求中。

Controller不会在Symfony 2

1 个答案: