#5815: Adds per-view cache refreshing (clearing)
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Reporter: k0001 | Owner: nobody
Type: New feature | Status: new
Component: Core (Cache system) | Version: dev
Severity: Normal | Resolution:
Keywords: cache refresh clear | Triage Stage: Accepted
Has patch: 1 | Needs documentation: 0
Needs tests: 1 | Patch needs improvement: 1
Easy pickings: 0 | UI/UX: 0
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Comment (by Mike Lissner):
Just to add a data points here, I spent a bunch of time today trying to
figure out which key to delete to nuke a cached page and eventually gave
up and just nuked a larger part of the cache in hopes of getting lucky (I
did).
Having a helper util just to figure out what the cache key value is would
be really nice.
Here's a summary of my failed research:
- "Expire a view-cache in Django?"
(https://stackoverflow.com/q/2268417/64911) — Says it works with < django
1.7. I didn't try it, but I don't think it'd work.
- "How to invalidate cache_page in Django?"
(https://stackoverflow.com/q/33749369/64911) — Accepted answer just says
to cache the queryset instead of using cache_page.
- "How to manually clear/update a cached view in django"
(https://stackoverflow.com/q/47040438/64911) — Has a solution, but it's
quite old and doesn't work. This is when I gave up.
The reason I need this (and couldn't wait for the cache to just expire) is
because I use the db cache to cache really big sitemaps that don't change
very often. The cache is usually on the order of a couple of weeks.
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Ticket URL: <https://code.djangoproject.com/ticket/5815#comment:11>
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