Rails 3 - Customizing the Error & 404 pages

Question

I'm building a Rails 3 app on Heroku. Right now my error pages and 404 page are all standard rails/heroku pages.

I'd like to customize these two. Have a page for an error, and have a page for a 404.

All the tutorials found on google are years old, and don't work on Rails 3.

Can you please suggest a good modern tutorial or tips on how to do the above?

Thanks

Answer 1

If you want to capture specific errors, use rescue_from in ApplicationController.

Otherwise if you just want to edit the default error pages, edit the 500.html and 400.html files in {Rails.root}/public