Question

谁可以举个例子？我有实体[WebGet(UriTemplate = "{id}")] public HttpResponseMessage isTest(int id) { Model model = Model.table.Where(p => p.Id == id).FirstOrDefault(); if (model != null) { //return Request.CreateResponse<Model>(HttpStatusCode.OK, model); //or return Request.CreateResponse(HttpStatusCode.OK, model); } else { return Request.CreateErrorResponse(HttpStatusCode.NotFound, "Model Not Found"); } }和Project - 许多事件到一个项目，所以当状态项目更改为Event时，我需要为此项目创建一个事件。

在控制器中：

'closed_by_client'

项目实体：

$project = $this
    ->getDoctrine()
    ->getManager()
    ->getRepository('ArtelProfileBundle:Project')
    ->find($id);

        $project->setCurrentStatus('closed_by_client');
        $manager->persist($project);
        $manager->flush();

我认为我可能会做这样的事情，但实体/** * Project. * * @ORM\Table(name="project") * @ORM\HasLifecycleCallbacks * @Gedmo\SoftDeleteable(fieldName="deletedAt") * @ORM\Entity(repositoryClass="Artel\ProfileBundle\Entity\Repository\ProjectRepository") * @ExclusionPolicy("all") */ class Project { const STATE_TO_BE_INDEXED_IN_ELA_NOT_APPROVED = 'not_approved'; const STATE_TO_BE_INDEXED_IN_ELA_CLOSED_BY_CLIENT = 'closed_by_client'; use Timestampable; /** * @var int * * @ORM\Column(name="id", type="integer") * @ORM\Id * @Expose() * @ORM\GeneratedValue(strategy="AUTO") */ private $id; /** * @ORM\Column(name="current_status", type="string", length=100, nullable = true) * @Expose() * @Type("string") */ protected $currentStatus = 'not_approved'; /** * @ORM\OneToMany(targetEntity="CodeEvents", mappedBy="project", cascade={"persist", "remove"}) */ protected $events; /** * @ORM\PrePersist() */ public function PrePersist(){ if($this->getCurrentStatus() == self::STATE_TO_BE_INDEXED_IN_ELA_CLOSED_BY_CLIENT){ $event = new CodeEvents(); $event ->setProject($this) ->setEvent(self::STATE_TO_BE_INDEXED_IN_ELA_CLOSED_BY_CLIENT) ; } } /** * @ORM\PreFlush() */ public function PreFlush(){ if($this->getCurrentStatus() == self::STATE_TO_BE_INDEXED_IN_ELA_CLOSED_BY_CLIENT){ $event = new CodeEvents(); $event ->setProject($this) ->setEvent(self::STATE_TO_BE_INDEXED_IN_ELA_CLOSED_BY_CLIENT) ; } }没有在DB中刷新：

Event

我添加

/**
 * @ORM\PrePersist()
 */
public function PrePersist(){
    if($this->getCurrentStatus() == self::STATE_TO_BE_INDEXED_IN_ELA_CLOSED_BY_CLIENT){
        $event = new CodeEvents();
        $event
            ->setProject($this)
            ->setEvent(self::STATE_TO_BE_INDEXED_IN_ELA_CLOSED_BY_CLIENT)
        ;
    }
}

/**
 * @ORM\PreFlush()
 */
public function PreFlush(){
    if($this->getCurrentStatus() == self::STATE_TO_BE_INDEXED_IN_ELA_CLOSED_BY_CLIENT){
        $event = new CodeEvents();
        $event
            ->setProject($this)
            ->setEvent(self::STATE_TO_BE_INDEXED_IN_ELA_CLOSED_BY_CLIENT)
        ;
    }
}

但是当flush实体有错误时

    /**
 * @ORM\PreFlush()
 */
public function PreFlush(LifecycleEventArgs $event){
    $entityManager = $event->getEntityManager();
    if($this->getCurrentStatus() == self::STATE_TO_BE_INDEXED_IN_ELA_CLOSED_BY_CLIENT){
        $event = new CodeEvents();
        $event
            ->setProject($this)
            ->setEvent(self::STATE_TO_BE_INDEXED_IN_ELA_CLOSED_BY_CLIENT)
        ;
        $entityManager->persist($event);
        $entityManager->flush();
    }
}

如何为事件创建侦听器 - 实体'closed_by_client'的项目更改状态 - 创建实体事件？

我没有创建早期事件，如何为此业务逻辑创建事件？

Answer 1

考虑到prePersist和preFlush方法属于Project类本身。要将其添加到您的活动对象，您只需使用$this：

public function PrePersist(){
    if($this->getCurrentStatus() == self::STATE_TO_BE_INDEXED_IN_ELA_CLOSED_BY_CLIENT){
        $event = new CodeEvents();
        $event->setProject($this);
    }
}

Answer 2

在标题中，您询问Symfony事件监听器，但实际上您使用的是doctrine事件监听器。

我的笔记在这里：

1，您需要创建一个symfony2事件并从您的学说事件中触发。如果你想解雇symfony2事件会使事情变得复杂，因为你需要访问框架事件调度程序，你需要将它注入你的LifeCycleEventListener。所以：

为此状态更改创建自己的Symfony事件 http://symfony.com/doc/current/components/event_dispatcher/introduction.html#creating-and-dispatching-an-event
为您的Project实体创建一个单独的Doctrine实体事件侦听器，您可以在其中注入sf框架事件调度程序
在sf2配置中定义它 http://symfony.com/doc/current/bundles/DoctrineBundle/entity-listeners.html
在您的学说监听器中使用事件调度程序调度您的状态更改事件
在symfony中创建您的事件订阅者或侦听器，它将处理状态更改事件（与第一个点相同的链接）。

2，我会考虑检查状态字段是否完全更改，否则当Project实体的任何其他属性更改且状态已经是“close_by_client”时，您将创建许多CodeEvent（）实例。看这里： http://doctrine-orm.readthedocs.org/projects/doctrine-orm/en/latest/reference/events.html#lifecycle-callbacks-event-argument

Symfony事件监听器 - 填充实体

2 个答案: