SelfReferenceProperty should just return a db.Key. So assuming the property is set, normal Key methods should work.
I have two suggestions: 1) Unless you are intending to dereference (ie perform another db.get()) those entities, use the get_value_for_datastore method. http://code.google.com/appengine/docs/python/datastore/propertyclass.html#Property_get_value_for_datastore And, 2) Avoid using Parent as a property name, parent is reserved. That is just asking for bugs caused due to a easy to make typo. http://code.google.com/appengine/docs/python/datastore/modelclass.html#Disallowed_Property_Names Robert On Jul 13, 2010, at 12:14, saintthor <[email protected]> wrote: > class x( db.Model ): > yy = db.ReferenceProperty( y ) > Parent = db.SelfReferenceProperty() > > use yy.key().id() is ok, but Parent.key().id() is invalid. tell me > SelfReferenceProperty have no attribute Key. > > how to get the key id then? > > -- > 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. > -- 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.
