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Automatically (with help) invalidate cache when code changes

See original GitHub issue

Sometimes a change in the code should trigger the invalidation of the cache. The idea is to add the version optional parameter to cache_memoize, defaulting to None. Then the version, if not None, would be added to the cache key.

We could use it like this:

@cache_memoize(60)
def f(...):

Then we fix a bug in f and write:

@cache_memoize(60, version=1)

Another bug fixed (so many 🐛 🪲 ) :

@cache_memoize(60, version=2)

So, when the fixes are deployed the cache will be invalidated, instead of returning a wrong cached value.

Issue Analytics

State:
Created 4 years ago
Reactions:1
Comments:5 (2 by maintainers)

Top GitHub Comments

1reaction

jdavidcommented, Aug 30, 2019

Yes. It may be as well a more generic option (e.g. suffix), just something that is added to the key.

0reactions

utapyngocommented, Aug 30, 2021

I vote for version.

Django itself does support the version argument: https://docs.djangoproject.com/en/3.2/topics/cache/#cache-versioning

It should be easy to add just one more pass-through argument to cache_memoize.

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