Does Prospective Search support ndb.model?

Question

A colleague is getting

DocumentTypeError: Document type is not supported.

when calling Subscribe using an ndb document type, on the dev appserver.
Are ndb and Prospective Search compatible?

Answer 1

Yes, ndb and Prospective search are compatible but you need to use prospective_search for ndb:

from google.appengine.ext.ndb import prospective_search

Regarding the error, from the source:

get_document() Raises DocumentTypeError: if document class is not recognized.

http://appengine-ndb-experiment.googlecode.com/hg/ndb/prospective_search.py