hi all,

suppose i have a network of 100k users, each of them have 100 friends.
they're all playing some games and have scores , i want to do two
rankings: 1. global ranking, 2. ranking of friends. how am i going to
design my datastore for this?

can i do something like this?

class User(db.Model):
   uid = db.IntegerProperty()
   score = db.IntegerProperty()
   friends = db.ListProperty(int)

since we don't have join, i'm thining of putting ids of friends in a
listProperty like above, learning from a GAE presentation that
listproperty gets inefficient at (or limited to) 1k entries, which i
think it's more than enough for my app.

i think it's question of best practices for designing entities for GAE
without JOIN, yet i couldn't seem to find a discussion that nails what
i'm looking for. would be grateful if anyone could share some
thoughts.

the appengine's been great! thanks all GAE team!

Herbert

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