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Re:What’s Up With All These Changes in Rails? by caiusdurling on Wednesday June 15, 2011 @01:24PM (#2658083)
As of rails 3 (was sort of true in 2 as well) you really don't need a database. I've written two rails 3 apps recently that have no database, they're effectively a thin graphical client for a couple of JSON APIs.

Works well, just don't require ActiveRecord and hey presto, your app doesn't have a database (or db rake tasks, etc).

Re:What’s Up With All These Changes in Rails? by rapind on Wednesday June 15, 2011 @01:55PM (#2658251)
It would never occur to me to write something non data-driven using Rails... because to me Rails is rapid development platform for data-driven webapps.

Interesting that people do though. Any particular reason? What features of Rails did you still use? Seems like an odd use case.