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在我的 models.py 文件中,我有:

class Place(models.NodeModel):
   name = models.StringProperty()

class Person(models.NodeModel):
    name = models.StringProperty()
    age = models.IntegerProperty()

    location = models.Relationship('self', rel_type='lives_in', related_name='place')

class Pet(models.NodeModel):
    name = models.StringProperty()
    owner = models.Relationship(Person,
                                rel_type='owns',
                                single=True,
                                related_name='pets'
                                )

然后我有一个 Person 类的实例“Pete”:

neo4j-sh (Pete,2)$ ls
==> *age  =[30]
==> *name =[Pete]
==> (me)-[:owns]->(Garfield,4)
==> (me)-[:lives_in]->(London,6)
==> (me)<-[:<<INSTANCE>>]-(mydb:Person,1)

获取皮特的年龄和姓名没有问题,但查询相关实体时遇到问题。

例如,试图得到他的位置,我跑

Person.objects.get(name='Pete').select_related('place')[0].name

但我得到一个错误: AttributeError: 'Person' object has no attribute 'select_related'

你能告诉我我做错了什么吗?

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