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问题描述
我正在寻找有关如何映射使用联接表的OneToMany / ManyToOne关系的建议。我没有进行映射，并且收到错误消息，未在媒体表中设置article_id。
I'm looking for a suggestion on how to map a OneToMany/ManyToOne relationship that uses a join table. The mapping I have is not taking, and I get an error that article_id is not set in the media table.
class Media
{
// ...
/**
* @ManyToOne(targetEntity="Document", inversedBy="media")
* @JoinTable(name="articles_x_media", referencedColumnName="id")
* joinColumns={@JoinColumn(name="media_id", referencedColumnName="id")},
* inverseJoinColumns={@JoinColumn(name="bid_id", referencedColumnName="id")})
* )
*/
protected $document;
}
class Document
{
// ...
/**
* @OneToMany(targetEntity="Media", mappedBy="document"))
* @JoinTable(name="articles_x_media", referencedColumnName="id")
* joinColumns={@JoinColumn(name="article_id", referencedColumnName="id")},
* inverseJoinColumns={@JoinColumn(name="media_id", referencedColumnName="id")}
* )
*/
protected $media;
}
推荐答案
关于。
There's a specific paragraph in the documentation about OneToMany mapping with join table.
无论如何，您可能想要的是。
Anyway, what you probably want is an uni-directional ManyToMany association.
此外， @OneToMany 不带有 @JoinTable ，对于 @ManyToOne 也是如此。
Also, @OneToMany does not come with a @JoinTable, and the same for @ManyToOne either.
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