Changing strong params for Devise - ruby-on-rails

Question

In my app I originally created a User scaffold and then afterwards I created a Devise User model that simply added attributes to the User model, however in my user controller whenever I try to make the parameter "username" a permitted parameter, it still spits up the error "username is not a permitted parameter".
My user.rb
class User < ActiveRecord::Base
# Include default devise modules. Others available are:
# :confirmable, :lockable, :timeoutable and :omniauthable
devise :database_authenticatable, :rememberable, :trackable, :validatable
belongs_to :role
def email_required?
false
end
def email_changed?
false
end
end
My User Controller
class UsersController < ApplicationController
before_filter :authenticate_user!
before_action :set_user, only: [:show, :edit, :update, :destroy]
# GET /users
# GET /users.json
def index
#users = User.all
end
# GET /users/1
# GET /users/1.json
def show
end
# GET /users/new
def new
#user = User.new
end
# GET /users/1/edit
def edit
end
# POST /users
# POST /users.json
def create
#user = User.new(user_params)
respond_to do |format|
if #user.save
format.html { redirect_to #user, notice: 'User was successfully created.' }
format.json { render :show, status: :created, location: #user }
else
format.html { render :new }
format.json { render json: #user.errors, status: :unprocessable_entity }
end
end
end
# PATCH/PUT /users/1
# PATCH/PUT /users/1.json
def update
respond_to do |format|
if #user.update(user_params)
format.html { redirect_to #user, notice: 'User was successfully updated.' }
format.json { render :show, status: :ok, location: #user }
else
format.html { render :edit }
format.json { render json: #user.errors, status: :unprocessable_entity }
end
end
end
# DELETE /users/1
# DELETE /users/1.json
def destroy
#user.destroy
respond_to do |format|
format.html { redirect_to users_url, notice: 'User was successfully destroyed.' }
format.json { head :no_content }
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_user
#user = User.find(params[:id])
end
# Never trust parameters from the scary internet, only allow the white list through.
def user_params
params.require(:user).permit(:role_id, :username, :password, :password_confirmation)
end
end
As you can see I've put the 'username' attribute into the strong params but it still isnt permitted. Any help is greatly appreciated, thanks!

Answer 1

try this in your application_controller.rb
before_action :configure_permitted_parameters, if: :devise_controller?
protected
def configure_permitted_parameters
devise_parameter_sanitizer.for(:sign_in) { |u| u.permit(:username, :email, :password) }
end
documentation https://github.com/plataformatec/devise#strong-parameters