Commit 2aa39f
2026-08-08 21:02:12 Niklas Polke: Create DJANGO Session And Cache| /dev/null .. python/django session.md | |
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| + | # DJANGO Session And Cache |
| + | |
| + | ## Session settings |
| + | `settings.py:` |
| + | ```python |
| + | SESSION_COOKIE_AGE = 30 * 60 # Session time 30 minutes |
| + | SESSION_SAVE_EVERY_REQUEST = True # Session time resets with every request |
| + | SESSION_EXPIRE_AT_BROWSER_CLOSE = False # Session doesn't quit when browser clos |
| + | ``` |
| + | :::warning |
| + | Session is stored per default in database - so a *SESSION_SAVE_EVERY_REQUEST* does a lot of additional database updates. Could be changed by using a cache like Redis |
| + | ::: |
| + | |
| + | ## Using Cache |
| + | `settings.py:` |
| + | ```python |
| + | CACHES = { |
| + | "default": { |
| + | "BACKEND": "django.core.cache.backends.dummy.DummyCache", |
| + | }, |
| + | |
| + | |
| + | |
| + | "sessions": { |
| + | "BACKEND": "django.core.cache.backends.redis.RedisCache", |
| + | "LOCATION": "redis://127.0.0.1:6379/1", |
| + | }, |
| + | } |
| + | |
| + | SESSION_ENGINE = "django.contrib.sessions.backends.cache" |
| + | SESSION_CACHE_ALIAS = "sessions" |
| + | ``` |
| + | :::warning |
| + | Because sessions are now only in the cache - a restart of the RedisCache would delete all sessions and everyone would get logged out immediately. |
| + | ::: |
| + | |
| + | ### Using Cache and Database |
| + | ```python |
| + | SESSION_ENGINE = "django.contrib.sessions.backends.cached_db" |
| + | ``` |
| + | - would write both to database and cache (so no help for the database) |
| + | - only the reads would be buffered by the cache |