def new_session(user_id, ip='127.0.0.1', device='web'):
"""
create a new session for the specified user
"""
s = Session.get_by_user_id(user_id)
if s is None or s.is_expired(__MAX_INACTIVE_SECONDS):
s.delete()
s = Session(user_id, ip, device)
s.insert()
return s
def user_session(user_id):
"""
return the active session of the user_id
if the user has not an active session None is returned
"""
return Session.get_by_user_id(user_id)