Query with paging by cursor causes error because of limitations for “IN filter” in cursor() method… What should be the alternative?

Question

I am developing a twitter like microblogging system by using the following models:

class Member(db.Model):    
    user = db.UserProperty(required=True)
             


        

Answer 1

Consider you have a member object named member_obj. From your model you can do something like this

To get the list of followings,

member_obj.followings will give you the list of keys , simply pass it to

followings_keys = member_obj.followings
Member.get(following_keys).

Then just loop through the members and display their messages.. This post on Modeling in appengine will help you a lot.