How do I handle cache invalidation in Ruby on Rails?

How do I handle cache invalidation in Ruby on Rails?

In Ruby on Rails, cache invalidation can be managed using various strategies like fragment caching, low-level caching, and Russian doll caching. What specific caching method are you using?

I'm using fragment caching for my views.

For fragment caching, you can use the cache method in your views. To invalidate the cache, you can use the expire_fragment method. Do you need help with a specific example?

Yes, can you show me how to expire a fragment?

Sure! You can expire a fragment by calling expire_fragment('cache_key') in your controller or model. This will clear the cached fragment associated with that key.

What if I want to expire multiple fragments?

You can loop through an array of keys and call expire_fragment for each one. Alternatively, you can use a wildcard if your keys follow a specific pattern.