[英]Problem saving from inversed side of many-to-many relationship
我有兩個實體: AudioPlaylist
和AudioTrack
。
AudioPlaylist.php:
/**
* @ORM\ManyToMany(targetEntity = "AudioTrack", inversedBy = "audioPlaylists")
* @ORM\JoinTable(name = "audioplaylist_audiotrack")
*
* @var ArrayCollection
*/
protected $audioTracks;
AudioTrack.php:
/**
* @ORM\ManyToMany(targetEntity = "AudioPlaylist", mappedBy = "audioTracks")
*
* @var ArrayCollection
*/
protected $audioPlaylists;
我的問題是,當我打電話$audioTrack->addAudioPlaylist($audioPlaylist)
該audioplaylist_audiotrack
表沒有更新。 我期望將新行添加到表中,以表示兩個實體之間的關系。 盡管$audioPlaylist->addAudioTrack($audioTrack)
添加了新行,但一切工作正常。
我確保堅持$audioTrack
並刷新實體管理器,但是沒有運氣,所以我認為我的注釋一定存在問題(我使用的是Doctrine文檔中的示例) 。 有任何想法嗎?
這可能是因為您尚未為反面設置cascade
屬性。 您必須為Doctrine2明確定義級聯 ,以保留所有相關實體。
/**
* @ORM\ManyToMany(targetEntity = "AudioPlaylist",
* mappedBy = "audioTracks",
* cascade = {"persist", "remove"})
*
* @var ArrayCollection
*/
protected $audioPlaylists;
確保在調用AudioTrack::addAudioPlaylist()
時也將AudioTrack
也添加到AudioPlaylist
中:
public function addAudioPlaylist(AudioPlaylist $playlist)
{
$this->getAudioPlaylists()->add($playlist);
$playlist->getAudioTracks()->add($this);
}
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