The ORM provides the ability to store multiple model variations inside one table. In order to achieve that you must extend your parent entity and declare relations/columns specific to the child.
/** @Entity */
class Post
{
/** @Column(type="primary") */
public $id;
}
/** @Entity */
class Article extends Post
{
/** @Column(type="string") */
public $articleTitle;
}
You can store an Article the same way as the parent entity.
Note, ORM will create a special column in your entity table,
_type, in which the child id will be stored.
You have to remember that fetching entities from the repository might return any of child entity:
// posts and articles
$posts = $orm->getRepository(Post::class)->findAll();
You are currently not allowed to assign custom repositories or scopes to child entities. However, you can use _type in your queries to pre-filter the selection.