同一类中同一实体的2个ManyToMany实例

Question

我想添加两个具有manyToMany关系的同一对象实例。

class A {
     /**
 * @ORMManyToMany(targetEntity="RelatedEntity", inversedBy="teachers", cascade={"persist", "remove"})
 * @ORMJoinTable(name="table1",
 *      joinColumns={@ORMJoinColumn(name="class_id", referencedColumnName="id")},
 *      inverseJoinColumns={@ORMJoinColumn(name="related_id", referencedColumnName="id")}
 *      )
 */
protected $myFirstEntities;

     /**
 * @ORMManyToMany(targetEntity="RelatedEntity", inversedBy="students", cascade={"persist", "remove"})
 * @ORMJoinTable(name="table2",
 *      joinColumns={@ORMJoinColumn(name="class_id", referencedColumnName="id")},
 *      inverseJoinColumns={@ORMJoinColumn(name="related_id", referencedColumnName="id")}
 *      )
 */
protected $mySecondEntities;
}

class RelatedEntity
{
  /**
 *
 * @ORMManyToMany(targetEntity="A", mappedBy="myFirstEntities", cascade={"persist"})
 */
protected $teachers;
  /**
 *
 * @ORMManyToMany(targetEntity="A", mappedBy="mySecondEntities", cascade={"persist"})
 */
protected $students;
}

当我使用时

        php app/console doctrine:generate:entities MyApp

程序生成一个唯一的方法来添加名为的实体

public function addRelatedEntity(MyAppMyBundleEntityRelatedEntity $myFirstEntities)
{
    $this->myFirstEntities[] = $myFirstEntities;
}

所以我不能添加mySecondEntity。我该怎么做。我有可能以手动方式添加它，但自动方式不可能？

我的问题是，我能把一个特定类的2个多对多关系用在同一个类中吗？我该怎么做？

Answer 1

条令：生成：当你需要生成实体时，应该使用一次实体，它不能保证生成的映射是100%正确的，http://docs.doctrine-project.org/projects/doctrine-orm/en/2.0.x/reference/tools.html#entity-生成：

此命令不适合经常使用。它是一个小帮手并且并不能很好地支持所有的映射边缘情况。你仍然使用此命令后，必须将工作放入实体中。

您可以为同一类进行多对多映射，只需手动即可

public function addFirstEntity(MyAppMyBundleEntityRelatedEntity $myFirstEntities)
{
    $this->myFirstEntities[] = $myFirstEntities;
} 
public function addSecondEntity(MyAppMyBundleEntityRelatedEntity $mySecondEntities)
{
    $this->mySecondEntities[] = $mySecondEntities;
}