| """ |
| Cached, database-backed sessions. |
| """ |
| |
| from django.conf import settings |
| from django.contrib.sessions.backends.db import SessionStore as DBStore |
| from django.core.cache import cache |
| |
| class SessionStore(DBStore): |
| """ |
| Implements cached, database backed sessions. |
| """ |
| |
| def __init__(self, session_key=None): |
| super(SessionStore, self).__init__(session_key) |
| |
| def load(self): |
| data = cache.get(self.session_key, None) |
| if data is None: |
| data = super(SessionStore, self).load() |
| cache.set(self.session_key, data, settings.SESSION_COOKIE_AGE) |
| return data |
| |
| def exists(self, session_key): |
| return super(SessionStore, self).exists(session_key) |
| |
| def save(self, must_create=False): |
| super(SessionStore, self).save(must_create) |
| cache.set(self.session_key, self._session, settings.SESSION_COOKIE_AGE) |
| |
| def delete(self, session_key=None): |
| super(SessionStore, self).delete(session_key) |
| cache.delete(session_key or self.session_key) |
| |
| def flush(self): |
| """ |
| Removes the current session data from the database and regenerates the |
| key. |
| """ |
| self.clear() |
| self.delete(self.session_key) |
| self.create() |
