Extending entities in Symfony2 with Doctrine2

单表继承配置

最新推荐文章于 2025-09-04 15:29:44 发布

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最新推荐文章于 2025-09-04 15:29:44 发布

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原文链接：https://my.oschina.net/u/144160/blog/775057

本文介绍了如何使用Doctrine进行单表继承的配置，通过示例展示了如何定义基类和派生类，以及如何设置注解来区分不同类型的记录。

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You can see in this link to know about inheritance: http://docs.doctrine-project.org/en/latest/reference/inheritance-mapping.html#single-table-inheritance

You must declare in UserBundle\Entity\User:

/**
 * @Entity
 * @InheritanceType("SINGLE_TABLE")
 * @DiscriminatorColumn(name="discr", type="string")
 * @DiscriminatorMap({"baseuser" = "UserBundle\Entity\User", "blogUser" = "BlogBundle\Entity\User"})
 */
class User implements UserInterface
{
    ...
}

And BlogBundle\Entity\User

use App\UserBundle\Entity\User as BaseUser;
/**
 * @ORM\Entity
 */
class User extends BaseUser
{
    ....
}

Goodluck!

//////////////////////////////////////////////////////////////////////////////////////////////////////////////////

http://stackoverflow.com/questions/5823905/how-to-manage-single-table-inheritance-within-doctrine-2

--------------------------------------------------------

Based on the example from the docs:

/**
 * @Entity
 * @InheritanceType("SINGLE_TABLE")
 * @DiscriminatorColumn(name="resource_type", type="string")
 * @DiscriminatorMap({"article_vote" = "ArticleVote", "comment_vote" = "CommentVote"})
 */
class Vote
{
    private $id;
    private $weight;
}

class ArticleVote extends Vote
{
    /** @ManyToOne(...) */
    private $article;
}

class CommentVote extends Vote
{
    /** @ManyToOne(...) */
    private $comment;
}

share improve this answer

edited Apr 29 '11 at 14:23

answered Apr 29 '11 at 3:53

Just incase someone else needs it, here is an detailed example in using Table Inheritance with Doctrine. I found it more informative than the Doctrine documentation:

http://blog.liip.ch/archive/2012/03/27/table-inheritance-with-doctrine.html

转载于:https://my.oschina.net/u/144160/blog/775057