Devise uses its own controllers to process your data, so you'd ideally add your extra params to those controllers. However, there are a number of ways you can do it
From Devise's Github:
In case you want to permit additional parameters (the lazy way™) you can do with a simple before filter in your ApplicationController:
class ApplicationController < ActionController::Base
before_filter :configure_permitted_parameters, if: :devise_controller?
protected
def configure_permitted_parameters
devise_parameter_sanitizer.for(:sign_up) << :username
end
end
From Strong parameters with Rails and Devise
# config/routes.rb
devise_for :users, :controllers => {:registrations => 'registrations'}
# controllers/users/registrations_controller.rb
class Users::RegistrationsController < Devise::RegistrationsController
before_filter :configure_permitted_parameters
protected
# my custom fields are :name, :heard_how
def configure_permitted_parameters
devise_parameter_sanitizer.for(:sign_up) do |u|
u.permit(:name, :heard_how,
:email, :password, :password_confirmation)
end
devise_parameter_sanitizer.for(:account_update) do |u|
u.permit(:name,
:email, :password, :password_confirmation, :current_password)
end
end
end