Query For Model By Key

What I'm trying to do is query the datastore for a model where the key is not the key of an object I already have. Here's some code: class User(db.Model): partner = db.SelfRefe

Solution 1:

There's a really easy way around this: Retrieve two records, and filter out the user's own one, if it's present.

def text_message(self, msg):
    user = User.get_or_insert(msg.sender)

    if not user.partner:
        # user doesn't have a partner, find them one
        other = db.Query(User).filter('partner =', None).fetch(2)
        other = [u for u in other if u.key() != user.key()]
        if other:
            # connect user with other[0]
        else:
            # no one to connect to!