csesoc/bark-core — pull request #27 by cmanou (2013-02-22 23:11:51+00:00)
Title: Add many to many with association object

Followed this thing http://stackoverflow.com/questions/7417906/sqlalchemy-manytomany-secondary-table-with-additional-fields

Could be wrong someone with more sqlalchemy experience should double check though considering it was broke before it should be fine