Answer Posted / Rajkumar

{"controller": "To create a controller in Ruby on Rails, follow these steps: 1. Generate the controller using the command `rails generate controller Subject`, where 'Subject' is your desired controller name.n2. Run the migration to create the associated database table for your controller (if needed) by executing `rails db:migrate`.n3. Open the newly created file in the app/controllers directory and define the methods you want for your controller."}

Tell me the role of modules and mixins in ruby?

1