I didn't find the scaffolding that difficult to understand, because I've used CakePHP before, but what gets me in Rails is the magic helper keywords. For instance: ActiveRecord.find_by_columnname(value), {controller}_path, {controller}_url.

I'm fairly certain that's not all of them, but I don't even know what those things are called to look for them. Those 3 are covered in a lot of tutorials without really explaining the full list of stuff Rails does for you automatically.