tree 91bf70e44e75ab5cb996cd08487f9c977c438701
parent 91e8588203261f12a3d143b8d5dd724dafa50c7c
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