rails - devise strong parameters is always unpermitted for registration - ruby-on-rails

Question

I want to permit :full_name parameter for my user model registration in devise, and I always getting Unpermitted parameter: :full_name as response for Users::RegistrationsController#create action
I have tried several ways as I show you next:
1. Application controller (option 1)
class ApplicationController < ActionController::Base
protect_from_forgery with: :exception
before_action :configure_permitted_parameters, if: :devise_controller?
protected
def configure_permitted_parameters
case params[:action]
when 'create'
devise_parameter_sanitizer.permit(:sign_up, keys: %i[full_name])
when 'update'
...
end
end
end
Result => Unpermitted parameter: :full_name
2. Registration controller (option 2)
class Users::RegistrationsController < Devise::RegistrationsController
before_action :configure_sign_up_params, only: :create
protected
def configure_sign_up_params
params.require(:user).permit(%i[full_name])
end
end
Result => Unpermitted parameter: :full_name
3. Registration controller (option 3)
class Users::RegistrationsController < Devise::RegistrationsController
before_action :configure_sign_up_params, only: :create
protected
def configure_sign_up_params
devise_parameter_sanitizer.permit(:sign_up, keys: %i[full_name ])
end
end
Result => Unpermitted parameter: :full_name
In my gemfile:
gem 'devise', '~> 4.8'
In my routes:
devise_controllers = {
confirmations: 'users/confirmations',
registrations: 'users/registrations',
invitations: 'users/invitations',
}
devise_for :users, controllers: devise_controllers
I have read devise strong params but to be honest I do not know what I am doing wrong.
Also I tried to debug in Users::RegistrationsController#create what is happening with:
def create
super do
binding.pry
end
end
but it skips the debugger breakpoint... do you have any idea what is going on?
Cheers!
Edit:
Following suggestion from JohnP, I only left :full_name in devise keys parametter sanitizer for sign_up
Also I removed a callback that is bypassing my debug breakpoint and now I can stop with pry in create action

Answer 1

Generally, you write strong params for a specific controller, not in your ApplicationController, because the permitted conditions will be different for each model. When using devise_parameter_sanitizer, you only need to include the extra fields you're adding - this isn't setting up your strong params from scratch, just adding keys to the default Devise list.
So, you should find that this is all you need in your Users::RegistrationsController.
def configure_sign_up_params
devise_parameter_sanitizer.permit(:sign_up, keys: [:full_name])
end
(BTW, ensure you refer to the parameter correctly, as params[:user][:full_name].)
(Oh, and if you want to do debugging, I'd suggest installing the byebug gem. You just add an extra line byebug where you want to have a breakpoint.)