I see the following pattern in the documentation to ensure strong consistency:
user_key = db.Key.from_path('User', 'ryan') # Put two entities
db.put([TestModel(parent=user_key), TestModel(parent=user_key)]) # Global query
doesn't see the data. self.assertEqual(0, TestModel.all().count(3)) # Ancestor
query does see the data. self.assertEqual(2,
TestModel.all().ancestor(user_key).count(3))
I'm wondering if this is good practice. The parent of the TestModel is set to
some contrived key that has no model associated with it. I'm currently in the
process of migrating to HRD and can use this pattern to work-around some
consistency probelsm.
- Klaas Pieter
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