Specify ignored attributes in mappings

[lunalucadou]

SQLAlchemy interprets the ClassVar type annotation to mean a non-mapped variable which the ORM can safely ignore. This is great, since it lets us populate special fields at runtime without IDEs complaining about unresolved attributes (and, if the value is read before being set, it doesn't risk causing a runtime exception).

Is there a way to emulate this with Document mappings? We could pre-populate the fields to be empty strs/lists/dicts, but that means re-building our indices every time we want to add/remove special attributes or change their types.

[miguelgrinberg]

There is no way to do this currently, but using ClassVar for such attributes would work. I'll look into it.