Jun 21, 2013 Adding custom fields to your Devise User model in Rails 4 Jeff Mueller How-to, Ruby on Rails, Web Design & Development 12 So, you’ve set up a new Rails 4.0.0rc2 project with Devise 3.0.0.rc. Look at you, cutting-edge-developer-person! You’ve set up a user model, you can register, you can log in, you can log out. Awesome. But now you want to add some additional columns to your user mod