Hi all, I've seen a number of interesting discussions on how to do efficient pagination on appengine, but one thing that I haven't seen addressed, which I would like, is how to efficiently compute ranking information for the items that are paginated.
Let me motivate this discussion by considering a leader board. We have a model like so: class Player(db.Model): name = db.StringProperty() score = db.IntegerProperty() last_updated = db.DateTimeProperty(auto_now=True) We may have hundreds of thousands of Players and we want to be able to rank them by their score. How could we used the previously discussed pagination techniques (http://code.google.com/appengine/articles/paging.html) to efficiently page through the leader board and not only show the Players in order by score, but also assign a rank value to each player. Many thanks for your thoughts and input. Cheers, Josh --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~----------~----~----~----~------~----~------~--~---
