I'm Following the wonderful Michael Hartl's tutorial which can be found here:
http://ruby.railstutorial.org/
I'm trying to modify my database backend from PostgreSQL to Amazon SimpleDB.. Any ideas on how to achieve this without breaking my existing app would be most helpful!
Thanks.
As the Tutorial covers a lot of ActiveRecord specifica which you probably can't use on AWS, I can't see why you would want to port the Tutorial app to AWS. Here's an intro about creating Rails Applications with Simple DB: