How does cache invalidation work in Django's cache framework?

How does cache invalidation work in Django's cache framework?

In Django, cache invalidation is the process of removing or updating cached data when the underlying data changes. This ensures that users always see the most current data.

What are some common strategies for cache invalidation?

Common strategies include time-based expiration, manual invalidation, and using signals to clear cache when data changes.

Can you give an example of manual cache invalidation?

Sure! You can use cache.delete('my_key') to manually remove a specific cache entry when you know the data has changed.

What happens if I don't invalidate the cache?

If you don't invalidate the cache, users may see stale data, which can lead to inconsistencies and confusion.