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我在表单提交时使用事件侦听器,其中,我需要捕获一个xml文件,打开它并提取其内容,将它放在一个实体上,并将其添加到一个集合中其他实体。Symfony2上的数组集合持久性
目前这个作品:
$builder->addEventListener(FormEvents::SUBMIT, function(FormEvent $event){
$entity = $event->getData();
if($entity){
$parent = $event->getForm()->getParent()->getData();
$gpx = $entity['gpx'];
if($gpx){
$xmlGpx = simplexml_load_file($gpx);
foreach ($xmlGpx->wpt as $pt) {
$point = new MonitoringPoint();
$point->setPoint(new \CrEOF\Spatial\PHP\Types\Geometry\Point((string) $pt['lat'], (string) $pt['lon']));
$point->setAltitude((float) $pt->ele);
$point->setDate(($pt->time->count() ? new \DateTime((string)$pt->time) : null));
$point->setAccuracy((float) $pt->hdop);
$parent->addMonitoringPoint($point);
}
$fileName = $gpx->getClientOriginalName();
$directory = __DIR__.'/../../../../web/uploads/';
$date = new \DateTime();
$newFileName = md5($gpx->getClientOriginalName().$date->getTimestamp());
$gpx->move($directory, $fileName);
$fs = new Filesystem();
$fs->rename($directory.$fileName, $directory.$newFileName.'.gpx');
$parent->setGpx($newFileName.'.gpx');
}
}
});
$parent
是Monitoring
的情况下,如果我打开$parent
我会看到$point
瓦尔已对变量的集合monitoringPoints
,并将GPX太。
但后来我去故见右前已经持续,里面newAction
$entity = new Monitoring($params);
$form = $this->createForm(new MonitoringType(), $entity, array(
'action' => $this->generateUrl('my_route'),
'method' => 'POST',
));
$form->handleRequest($request);
if ($form->isSubmitted() && $form->isValid()) {
dump($entity);die;
$em = $this->getDoctrine()->getManager();
$em->persist($entity);
$em->flush();
}
和集合为空实体!但gpx属性包含正确的值。 集合是否被重置?
请务必阅读并理解http://doctrine-orm.readthedocs.org/projects/doctrine-orm/ EN /最新/reference/unitofwork-associations.html - 我很确定这是你的问题。 – LBA