Hi, At http://code.google.com/appengine/docs/python/datastore/queriesandindexes.html#Restrictions_on_Queries it explains:
It is not possible to perform a query for entities that are missing a given property. One alternative is to create a fixed (modeled) property with a default value of None, then create a filter for entities with None as the property value. I tried to follow that advice and make a certain UserPropery in my model by default=None: owner = db.UserProperty(default=None) This does not work however. What am I doing wrong? Can somebody give an example what it means to "create a fixed (modeled) property with a default value of None" ? How can I do this for UserProperty? --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
