I just stumbled upon the options for devise_for which let you auto-generate the routes that are needed for a certain devise resource (user), with certain categories of routes skipped.

For example, if I want to define routes for my User, I can define:

devise_for :users

This results in the routes for these three categories:

• Sessions - Sign in, Sign out
• Passwords - Password reset options
• Registrations - Creating new user, updating existing user, or destroying your user account

You can leave one of these categories out of the route definition by using skip. For instance if you want only the Sign-in and Sign-out options, you could define this in your routes.rb file:

devise_for :users, :skip => [:registrations, :passwords]