Out of sheer morbid curiosity, I wondered what it would take to replace ActiveRecord with JPA in the classic blog demo. Jeroen Zwartepoorte, a developer I met last week at RailsConf, convinced me to go ahead and publish my results.
In almost all cases, I tried to keep the view and controller code similar to what you would expect from generated scaffolding, so all of the JPA code is isolated in...
