def add_board(self, board): return r_server.sadd('/user/%d/boards' % self.id, board.id)
def add_card(self, card): r_server.sadd('/user/%d/cards' % self.id, card.id)
def add_user(self, user): #r_server.rpush('/board/%d/users' % self.id, user.id) return r_server.sadd('/board/%d/users' % self.id, user.id)