You can use the DerivedProperty from the aetycoon lib written by Nick Johnson (search his blog). During a put it will update the property no need to perform the count yourself.
2011/3/1 ogterran <jonathanh...@gmail.com>: > Thanks guys. I'll add another IntegerProperty to increment the count -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to google-appengine@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.