How can I implement roles and permissions in a Rails app using Devise?

How can I implement roles and permissions in a Rails app using Devise?

You can implement roles and permissions in a Rails app using Devise by adding a role column to your User model and using a gem like Pundit or CanCanCan for authorization.

What are the steps to add a role column to the User model?

First, generate a migration to add the role column: rails generate migration AddRoleToUsers role:string. Then run rails db:migrate.

How do I set up Pundit for authorization?

To set up Pundit, add it to your Gemfile, run bundle install, and then run rails generate pundit:install to create the necessary files.

Can you give an example of a policy in Pundit?

Sure! A simple policy might look like this: class PostPolicy < ApplicationPolicy; def update? user.admin?; end; end.