Matryoshka Fragment Caching in Rails

“Russian doll Caching” gained some popularity recently, I suspect in part due to its catchy (or cachie?) name and how easy it is to visualize the concept. Rails 4 should have this improved caching available by default. With Rails 3 you need to install the cache-digests gem. It’s pretty easy to get started with it, and the documentation is clear. It makes a lot of sense to start using it in your Rails app. I won’t attempt to cover the basics and will assume you are already familiar with it. I want to talk about a specific aspect of fragment caching surrounding the generation of the cache keys.

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