我是Symfony的新手并关注the Jobeet tutorial。我正在尝试使用服务侦听器和postLoad
将Container注入实体。目的是使用LiipImagineBundle在@ORM\PostPersist
中编写缩略图图像。问题是在某些路由上未加载Job实体,然后未触发postLoad
。因此,@ORM\PostPersist
中使用的容器不可用。
根据教程,PostPersist
运行有两条路线:
job/create
job/update
我发现未加载作业实体且postLoad
未触发job/create
。路线job/update
很好,容器被注入。我发布了一些
的src / IBW / JobeetBundle /资源/配置/ services.yml
services:
ibw.jobeet.entity.job.container_aware:
class: Ibw\JobeetBundle\Doctrine\Event\Listener\JobListener
calls:
- [setContainer, ["@service_container"]]
tags:
- { name: doctrine.event_listener, event: postLoad }
的src / IBW / JobeetBundle /学说/事件/侦听/ JobListener.php
<?php
namespace Ibw\JobeetBundle\Doctrine\Event\Listener;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Doctrine\ORM\Event\LifecycleEventArgs;
class JobListener
{
/** @var ContainerInterface */
protected $container;
/**
* @param ContainerInterface @container
*/
public function setContainer(ContainerInterface $container)
{
$this->container = $container;
}
/**
* @ORM\PostLoad
*/
public function postLoad(LifecycleEventArgs $eventArgs)
{
$entity = $eventArgs->getEntity();
if (method_exists($entity, 'setContainer')) {
$entity->setContainer($this->container);
}
}
}
的src / IBW / JobeetBundle /实体/ Job.php
// ....
/**
* @ORM\PostPersist
*/
public function upload()
{
if (null === $this->getFile()) {
return;
}
if ($this->getFile()->move($this->getUploadTmpRootDir(), $this->logo)) {
$this->moveAndResizeImage();
}
$this->file = null;
}
private function moveAndResizeImage($filter = 'primary')
{
$path = $this->getWebTmpPath();
$target = $this->getAbsolutePath();
if (file_exists($path)) {
$container = $this->container;
// got problem here. $container is null for /job/create
// but it is okay for /job/update
$dataManager = $container->get('liip_imagine.data.manager');
$filterManager = $container->get('liip_imagine.filter.manager');
$image = $dataManager->find($filter, $path);
$thumb = $filterManager->applyFilter($image, $filter);
file_put_contents($target, $thumb->getContent());
unlink($path); // remove the temp client original image
}
}
// ...
的src / IBW / JobeetBundle /控制器/ JobController.php
// ...
public function createAction(Request $request)
{
$entity = new Job();
$form = $this->createCreateForm($entity);
$form->handleRequest($request);
if ($form->isValid()) {
$em = $this->getDoctrine()->getManager();
$em->persist($entity);
$em->flush();
return $this->redirect($this->generateUrl('ibw_job_preview', array(
'company' => $entity->getCompanySlug(),
'location' => $entity->getLocationSlug(),
'token' => $entity->getToken(),
'position' => $entity->getPositionSlug()
)));
}
return $this->render('IbwJobeetBundle:Job:new.html.twig', array(
'entity' => $entity,
'form' => $form->createView(),
));
}
// ....
有什么方法可以解决这个问题吗?
答案 0 :(得分:1)
我通过在事件监听器类中添加postPersist
来解决这个问题,以确保容器在持久化之前可用。 LiipImagineBundle 服务在JobListener
上调用。我将MyListener
重命名为ibw.jobeet.event.mylistener:
class: Ibw\JobeetBundle\Listener\Event\MyListener
calls:
- [setContainer, ["@service_container"]]
tags:
- { name: doctrine.event_listener, event: postLoad }
- { name: doctrine.event_listener, event: prePersist }
。这是我的工作代码:
<强>的src / IBW / JobeetBundle /资源/配置/ services.yml 强>
<?php
namespace Ibw\JobeetBundle\Listener\Event;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Doctrine\ORM\Event\LifecycleEventArgs;
use Ibw\JobeetBundle\Entity\Job;
class MyListener
{
/** @var ContainerInterface */
protected $container;
/**
* @param ContainerInterface @container
*/
public function setContainer(ContainerInterface $container)
{
$this->container = $container;
}
/**
* @param LifecycleEventArgs $eventArgs
*/
public function postLoad(LifecycleEventArgs $eventArgs)
{
$this->injectContainer($eventArgs);
}
/**
* @param LifecycleEventArgs $eventArgs
*/
public function prePersist(LifecycleEventArgs $eventArgs)
{
$this->injectContainer($eventArgs);
}
protected function injectContainer(LifecycleEventArgs $eventArgs)
{
$entity = $eventArgs->getEntity();
if ($entity instanceof Job) {
$entity->setContainer($this->container);
}
$em = $eventArgs->getEntityManager();
$repository = $em->getRepository('IbwJobeetBundle:Job');
if ($entity instanceof Job) {
$repository->setContainer($this->container);
}
}
}
<强>的src / IBW / JobeetBundle /监听器/活动/ MyListener.php 强>
mydf = structure(list(User = c(1L, 1L, 1L, 2L, 2L, 2L, 3L, 3L, 3L),
Mode = c(1L, 2L, 3L, 1L, 2L, 3L, 1L, 2L, 3L), Trial1Time = c(20L,
5L, 40L, 10L, 15L, 30L, 13L, 11L, 35L), Trial2Time = c(30L,
7L, 25L, 20L, 17L, 35L, 26L, 11L, 38L)), .Names = c("User",
"Mode", "Trial1Time", "Trial2Time"), class = "data.frame", row.names = c(NA,
-9L))
可能有更好的方法来解决这个问题。如果有,请发一个答案。我知道注入整个容器是一种不好的做法。我将更新以便稍后注入所需的服务。