How can I customize Devise in my Rails application?

How can I customize Devise in my Rails application?

You can customize Devise by modifying its configuration files, creating custom controllers, and views. What specific customization do you have in mind?

I want to change the sign-up form to include a username field.

To add a username field, you need to generate a migration to add the username column to your users table, then permit the username parameter in your ApplicationController.

Can you show me how to permit the username parameter?

Sure! In your ApplicationController, add this line: before_action :configure_permitted_parameters, if: :devise_controller?. Then define the method like this: def configure_permitted_parameters; devise_parameter_sanitizer.permit(:sign_up, keys: [:username]); end.

Thanks! How do I display the username in the views?

You can display the username in your views by using <%= @user.username %> wherever you want to show the username.