cache_pipe

Provides a wrapper around a Rails cache store, allowing values to be transformed before storage and after retrieval.

Currently it provides a single transformation, :wrap_nil, which allows caching engines like Dalli to store nil values.

Add to your Gemfile:

gem 'cache_pipe'

Then change your Rails configuration, e.g. config/environments/production.rb:

config.cache_store = :cache_pipe, :wrap_nil, :dalli_store, { value_max_bytes: 10485760, expires_in: 86400 }
# Instead of config.cache_store = :dalli_store, { value_max_bytes: 10485760, expires_in: 86400 }

In the future, we may want to support additional transformations. Let me know if you have other applications that aren't covered by the current implementation!