def put(self, username):
data = User.parser.parse_args()
user = UserModel.find_by_username(username)
if user is None:
user = UserModel(username, **data)
else:
user.username = username
user.user_type = data['user_type']
user.first_name = data['first_name']
user.last_name = data['last_name']
user.assigned_mentor = data['assigned_mentor']
user.save_to_db()
return user.json()