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254

answers:

1

If I have two types of models that each reference each other, whichever one I try to define first says it does not recognize the referenced other type (because it is defined further down in the file). For example:

class Author(db.Model):
    most_recent_book = db.ReferenceProperty(Book)

class Book(db.Model):
    author = db.ReferenceProperty(Author)

This will claim that the referenced "Book" model is not recognized. If I flip the order, I run into the same issue (except it will say that "Author" is not recognized). How do I get around this?

+4  A: 

You can use ReferenceProperty without declaring a type as described in this article from AppEngine Tips

Adam Crossland
Perfect. That works. Thanks
ryan