Where is the code for partial hashes?

rubyonrails-talk
1

There is intelligence in the partial caching for rails that watches for the partial contents to change, presumably with a hash. That is also seemingly smart enough to watch the hashes of partials rendered within the current partial too.

I can’t find the code for that in the Rails repo for the life of me. Does anyone know where that code lives?

2

There’s a lot of places to look in the API documentation. One method that may turn up some results is cache_key. ActiveRecord::Integration

That’s a great place to start, and then there are further refinements to it, and that method gets used all over the place.

Walter

3

That is ActiveRecord, not the ActionView partials part.

The core issue is sort of what your comment raises - there is a lot of caching code, and most is unrelated to partials, and it is hard to hunt down that portion.

4

Someone sent me a note elsewhere with the info but posting here for posterity: rails/actionview/lib/action_view/helpers/cache_helper.rb at main · rails/rails · GitHub