what do I know

Anthony Eden gave this presentation on the inner workings of ActiveRecord. His approach was a little unconventional diving straight into the source code of the ActiveRecord::Base class. He did a good job of summarizing how AR utilized the different language aspects of Ruby to accomplish its goal. Mixins play a pretty large role in the library which didn’t seem like much of a surprise since I can definitely see their benefit when working with DSLs in Ruby. I was surprised to see that AR has a built in form of caching it uses for repetitive method calls (methods being generated at runtime and explicitly mixed into models to avoid repeat calls to missing_method); I thought this was pretty cool. Overall, I am a pretty big n00b to the world of Ruby and Rails, but from the parts I was able follow, Anthony’s presentation kept my attention.

I definitely still like GORM’s approach to ActiveRecord over Rails’, but that’s Groovy; what about Ruby? Also, what about the issue of working with legacy databases in Ruby? With a little research, Dan was able to show me DataMapper and rBatis which, we both agreed, look like great alternatives in the world of Ruby ORMs for the ActiveRecord and legacy stories. rBatis can even be installed as a Rails plugin, so maybe working with JRuby and Rails in the enterprise isn’t going to be as hard as I thought.

In any case, great talk Anthony! Good to see a fellow Melbourne-ite involved in the Central Florida technology scene.

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• acts_as_conference 2008 : JRuby
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