General Cleanup

This is part of a series on Rails 2 Upgrade Turbulence.

Some generic cleanup tasks:

• @request/@params/etc are deprecated, drop the '@' everywhere.
• application.rb becomes application_controller.rb
• start_form_tag and end_form_tag are deprecated; use form_for instead.
• ActiveRecord associations have changed.
• Named routing has changed. Previously, every route created a method of the form 'some_page_url', which generated a relative path to the related url. Now, both 'some_page_url' and 'some_page_path' are generated. The _url method now gives an absolute url, while _path is relative.
• Most gems/plugins need to be upgraded or replaced. Yay for more current versions!

I found these Rails 2 Upgrade Notes to be pretty helpful.

Also, there's nothing like a little grep/cut/sed to make short work of replacing en masse: