Right - I wrote db.Key().name() for input to construct a key_name when I should have written str of db.Key instance.
In short, I have three root db.Model instances that were constructed without a key_name, I want to construct a key_name for another root instance by concatenating str of those instance's key() s. I'm doing this because if str(x.key()) is unique, concatenating them will also be unique. On Oct 16, 9:10 am, "Marzia Niccolai" <[EMAIL PROTECTED]> wrote: > If key_name isn't set, db.Key().name() will return None. > > -Marzia > > > > On Thu, Oct 16, 2008 at 9:07 AM, Andy Freeman <[EMAIL PROTECTED]> wrote: > > > If the lenghth of an instance's db.Key().name() when key_name isn't > > set is a constant, that's even better for my purposes. > > > On Oct 16, 2:13 am, Ross Ridge <[EMAIL PROTECTED]> wrote: > > > Andy Freeman wrote: > > > > I'd assumed that the length of a db.Model instance's db.Key().name() > > > > was a constant plus a linear function of the depth the entity in its > > > > entity group. > > > > The length of the instance's db.Key().name() is the same as the > > > key_name you set when you created it. If you didn't set a key_name > > > then the entity has an id whose length I don't think is dependent on > > > its depth in its entity group. The id (and key_name) is only unique > > > amongst the enities with both the same kind and parent, so there's no > > > need for it to be any longer because it's depth. > > > > Ross Ridge- Hide quoted text - > > - Show quoted text - --~--~---------~--~----~------------~-------~--~----~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~----------~----~----~----~------~----~------~--~---
