app/django/contrib/sessions/backends/cache.py
author Todd Larsen <tlarsen@google.com>
Fri, 26 Sep 2008 19:47:07 +0000
changeset 204 7075c27170f2
parent 54 03e267d67478
child 323 ff1a9aa48cfd
permissions -rw-r--r--
Add ModelWithFieldAttributes *before* PolyModel, so that everything does not become a "ModelWithFieldAttributes" in the Datastore. The way PolyModel works, each Model class hierarchy is stored in the Datastore as the class that directly inherited from PolyModel. So, we do not want to insert ModelWithFieldAttributes *after* PolyModel by inheriting *from* PolyModel, or everything would just be a ModelWithFieldAttributes in the Datastore, instead of Person, Work, Group, etc.
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from django.conf import settings
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from django.contrib.sessions.backends.base import SessionBase
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from django.core.cache import cache
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class SessionStore(SessionBase):
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    """
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    A cache-based session store. 
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    """
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    def __init__(self, session_key=None):
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        self._cache = cache
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        super(SessionStore, self).__init__(session_key)
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    def load(self):
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        session_data = self._cache.get(self.session_key)
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        return session_data or {}
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    def save(self):
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        self._cache.set(self.session_key, self._session, settings.SESSION_COOKIE_AGE)
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    def exists(self, session_key):
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        if self._cache.get(session_key):
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            return True
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        return False
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    def delete(self, session_key):
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        self._cache.delete(session_key)