tree 91bf70e44e75ab5cb996cd08487f9c977c438701
parent 8103d0f7b53c86c3e9618691e298a8bbe7838817
author Tony Mack <tmack@cs.princeton.edu> 1428769079 -0400
committer Tony Mack <tmack@cs.princeton.edu> 1428769079 -0400

replace composite_primary_key hack with django's unique together