1 from django.contrib.sessions.backends.base import SessionBase

     2 

     3 class SessionStore(SessionBase):

     4     """

     5     A simple cookie-based session storage implemenation.

     6 

     7     The session key is actually the session data, pickled and encoded.

     8     This means that saving the session will change the session key.

     9     """

    10     def __init__(self, session_key=None):

    11         super(SessionStore, self).__init__(session_key)

    12 

    13     def exists(self, session_key):

    14         return False

    15 

    16     def create(self):

    17         self.session_key = self.encode({})

    18 

    19     def save(self, must_create=False):

    20         self.session_key = self.encode(self._session)

    21 

    22     def delete(self, session_key=None):

    23         self.session_key = self.encode({})

    24 

    25     def load(self):

    26         try:

    27             return self.decode(self.session_key)

    28         except:

    29             self.modified = True

    30             return {}