php - Symfony2 : Where place slug and timestamp methods?

Question

I am coding a service which will handle articles (CRUD).

The persistence layer is handles by an ArticleManager >which does Repository and CRUD actions.

Now I want to implement two attributes: createdAt and >updatedAt

My question is now where I should place them:In the entity, in the ArticleManager, somewhere else?

Best Regards,Bodo

啊，

我明白了，FOSUserBundle 使用 EventListener 处理这个任务:

https://github.com/FriendsOfSymfony/FOSUserBundle/blob/master/Entity/UserListener.php

但是谢谢你的帮助:)

<?php

namespace LOC\ArticleBundle\Entity;

use Doctrine\Common\EventSubscriber;
use Doctrine\ORM\Events;
use Doctrine\ORM\Event\LifecycleEventArgs;
use Doctrine\ORM\Event\PreUpdateEventArgs;
use LOC\ArticleBundle\Model\ArticleInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;


class ArticleListener implements EventSubscriber
{
private $articleManager;
private $container;

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

public function getSubscribedEvents()
{
    return array(
        Events::prePersist,
        Events::preUpdate,
    );
}

public function prePersist(LifecycleEventArgs $args)
{
    $article = $args->getEntity();
    
    $article->setCreatedAt(new \DateTime());
    
    $this->articleManager->updateArticle($article);
}

public function preUpdate(PreUpdateEventArgs $args)
{
    $article = $args->getEntity();
    
    $article->setUpdatedAt(new \DateTime());
    
    $this->articleManager->updateArticle($article);
}
}

Answer 1

好吧，这些东西有一个包，DoctrineExtensionsBundle .它具有 Timestampable 和 slugable。

如果你想自己做，这个地方肯定在实体本身，因为你不想在你的 Controller 中乱七八糟。这是我如何使用 Timestampable，因为我不使用 DoctrineExtensionsBundle:

/**
 * @ORM\Entity
 * @ORM\Table(name="entity")
 * @ORM\HasLifecycleCallbacks
 */
class Entity {
    // ...

    /**
     * @ORM\Column(name="created_at", type="datetime", nullable=false)
     */
    protected $createdAt;

    /**
     * @ORM\Column(name="updated_at", type="datetime", nullable=false)
     */
    protected $updatedAt;

    /**
     * @ORM\prePersist
     */
    public function prePersist() {
        $this->createdAt = new \DateTime();
        $this->updatedAt = new \DateTime();
    }

    /**
     * @ORM\preUpdate
     */
    public function preUpdate() {
        $this->updatedAt = new \DateTime();
    }

    // ...

}

至于我决定不使用 Bundle:当 symfony2 作为稳定版发布时，这个 bundle 不存在(或者它不稳定，我不记得了)所以我开始自己做，如图所示以下。因为它的开销很小，所以我一直这样做，从不觉得有必要改变它。如果您需要 Slugable 或希望保持简单，请尝试 bundle !