How can I handle cache invalidations in Django?

How can I handle cache invalidations in Django?

In Django, you can handle cache invalidations using signals, cache keys, or by setting cache timeouts. What specific scenario are you dealing with?

I'm trying to invalidate the cache when a model instance is updated.

You can use the post_save signal to invalidate the cache when a model instance is saved. Would you like a code example?

Yes, please provide a code example.

Sure! You can connect to the post_save signal like this:

from django.db.models.signals import post_save
from django.dispatch import receiver
from django.core.cache import cache

@receiver(post_save, sender=YourModel)
def invalidate_cache(sender, instance, **kwargs):
    cache_key = f'your_cache_key_{instance.id}'
    cache.delete(cache_key)

This will delete the cache entry whenever the model instance is saved.