Tuesday, September 25, 2007 9:04 AM
Though I may not be correct on the actual layers I find thinking about this stuff interesting. It all started when I was reading about Elixer and SQLAlchemy.
http://www.b-list.org/weblog/2007/sep/04/orm-wars/
http://elixir.ematia.de/
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NHQG on ActiveRecord
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