google-app-engine:如何在另一个类中将对象列表作为属性？

Question

我怎样才能实现这一目标 google appengine db model

from google.appengine.ext import db
Class Car(db.Model):
    name=db.StringProperty()
    model=db.StringProperty()
    mileage=db.IntegerProperty()

Class Person(db.Model):
    name=db.StringProperty()
    age=db.IntegerProperty()
    cars=db.ListProperty(Car) # How can I have cars object for person containing list of Car Objects? 

谢谢

Answer 1

请查看参考文档http://code.google.com/appengine/docs/python/datastore/datamodeling.html#References

它反过来工作,汽车将有

person = db.ReferenceProperty(Person, collection_name="cars")

这将使物业汽车在人.

希望这可以帮助.