Php 如何更新条令中的数据？

我有一个视频类，与字幕类有一对多的关系

Video.orm.xml

 <doctrine-mapping>
    <entity name="VideoLibrary\Api\Infrastructure\Persistence\Doctrine\Entity\Video" table="video">
        <id name="id" type="guid" />
        <field name="title" type="string" length="300" />
        <field name="duration" type="integer" length="300" />
        <field name="status" type="string" length="20" />
        <field name="createdAt" type="datetime" />
        <field name="updatedAt" type="datetime" />
        <one-to-many field="subtitles" target-entity="Subtitle" mapped-by="video">
            <cascade>
                <cascade-persist/>
            </cascade>
            <order-by>
                <order-by-field name="language" direction="ASC"/>
            </order-by>
        </one-to-many>
    </entity>
</doctrine-mapping>

视频数据的更新没有问题，问题是当将字幕集合传递给它时，它不执行更新，而是尝试仅在字幕中插入

$videoUpdate = $this->repository->findOneBy(['id'=>$video->getId()->getValue()]);
$videoUpdate->setTitle($video->getTitle());
$videoUpdate->setDuration($video->getDuration());
$videoUpdate->setStatus($video->getStatus()->getValue());

array_map(function($subtitle) use ($videoUpdate){
    $videoUpdate->UpdateSubtitle($this->subtitleToInfrastructure($subtitle));
},$video->getSubtitles()->getCollection());

$this->entityManager->persist($videoUpdate);
$this->entityManager->flush();

UpdateSubtitle方法

public function UpdateSubtitle(Subtitle $subtitle):void{
    $subtitle->setVideo($this);
    foreach ($this->subtitles->toArray() as $item) {
        $key = $this->subtitles->indexOf($item);
        if($item->getId() === $subtitle->getId()){
            
            $this->subtitles->set($key,$subtitle);
        }else if(!$this->subtitles->contains($item)){
            $this->subtitles->add($subtitle);
        }
    }
}

因为Persist for the video Entity会进行更新，但是当我将字幕实体的集合传递到视频实体中时，如果具有该id的字幕已经存在，它希望执行插入操作

$videoUpdate = $this->repository->findOneBy(['id'=>$video->getId()->getValue()]);
$videoUpdate->setTitle($video->getTitle());
$videoUpdate->setDuration($video->getDuration());
$videoUpdate->setStatus($video->getStatus()->getValue());

array_map(function($subtitle) use ($videoUpdate){
    $videoUpdate->UpdateSubtitle($this->subtitleToInfrastructure($subtitle));
},$video->getSubtitles()->getCollection());

$this->entityManager->persist($videoUpdate);
$this->entityManager->flush();

public function UpdateSubtitle(Subtitle $subtitle):void{
    $subtitle->setVideo($this);
    foreach ($this->subtitles->toArray() as $item) {
        $key = $this->subtitles->indexOf($item);
        if($item->getId() === $subtitle->getId()){
            
            $this->subtitles->set($key,$subtitle);
        }else if(!$this->subtitles->contains($item)){
            $this->subtitles->add($subtitle);
        }
    }
}