You can't order by a property with a name attribute. See bugs 3228
and 3693 for details.
http://code.google.com/p/googleappengine/issues/detail?id=3228
http://code.google.com/p/googleappengine/issues/detail?id=3693
Looks like Query.order checks that the property name is in the
model.properties(). properties() returns the full names, not the
short names so this does not work. Query.filter() does not perform
this test. Is there any way we could get this patch (or a better fix)
applied for the 1.4 release?
Robert
--- google/appengine/ext/db/__init__.py.busted 2010-11-18
13:44:32.000000000 -0500
+++ google/appengine/ext/db/__init__.py 2010-11-23 00:31:23.000000000 -0500
@@ -2225,8 +2225,7 @@
datastore_types._KEY_SPECIAL_PROPERTY)
else:
if not issubclass(self._model_class, Expando):
- if (property not in self._model_class.properties() and
- property not in datastore_types._SPECIAL_PROPERTIES):
+ if property in datastore_types._SPECIAL_PROPERTIES:
raise PropertyError('Invalid property name \'%s\'' % property)
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