I'm learning Django and for this reason I'm developing an application described below.
This application allows users (authenticated and anonymous) to send message to other users.
Authenticated users can send message and can track all messages simply as all application that uses this feature. (like Facebook messages, for example)
The problem are anonymous users. I would an anonymous user can send message to other users but he can track his messages only for his session. Users can also reply to a message of an anonymous user but If an anonymous user lost his session lost also his messages.
The problem is, how can I manage anonymous user and their messages for the session only?