Can't add custom Devise field through view - ruby-on-rails-4

Question

I've been at this for days, and cannot figure out the problem. When I attempt to Sign Up, it appears to work, but when I check the rails console, it shows no username. I'm able to add one from there and it works fine, but using my Sign Up view it never works. Only the fields that were created when I installed Devise work. I've also added First and Last Name, but I only attempted to get Username working, so the code for names is incomplete. If I've left anything important out, let me know. I'd REALLY appreciate the help.
class ApplicationController < ActionController::Base
# Prevent CSRF attacks by raising an exception.
# For APIs, you may want to use :null_session instead.
protect_from_forgery with: :exception
protected
def configure_devise_permitted_parameters
devise_parameter_sanitizer.for(:sign_up) do |u|
u.permit(:email, :username, :password, :password_confirmation)
end
end
.
class User < ActiveRecord::Base
# Include default devise modules. Others available are:
# :confirmable, :lockable, :timeoutable and :omniauthable
devise :database_authenticatable, :registerable,
:recoverable, :rememberable, :trackable, :validatable
validates :username, :uniqueness => {:case_sensitive => false}
has_many :posts
has_many :offers
has_many :requests
has_one :profile
def name
"#{first_name} #{last_name}"
end
protected
def self.find_for_database_authentication(warden_conditions)
conditions = warden_conditions.dup
login = conditions.delete(:login)
where(conditions).where(["lower(username) = :value", { :value => login.downcase }]).first
end
end
.
<h2>Sign up</h2>
<%= form_for(resource, as: resource_name, url: registration_path(resource_name)) do |f| %>
<%= devise_error_messages! %>
<div><%= f.label :email %>
<%= f.email_field :email, autofocus: true %></div>
<div><%= f.label :username %>
<%= f.text_field :username%><div>
<div><%= f.label :first_name %>
<%= f.text_field :first_name %><div>
...
.
class UsersController < ApplicationController
before_action :set_user, only: [:show, :edit, :update, :destroy]
def show_user
#user = current_user
render 'show'
end
def index
#user = User.all
end
def new
#user = User.new
render profiles_path
end
def create
#user = User.new(user_params)
if #user.save
redirect_to posts_path, notice: 'User successfully added.'
else
render profiles_path
end
end
def edit
end
def update
if #user.update(user_params)
redirect_to posts_path, notice: 'Updated user information successfully.'
else
render action: 'edit'
end
end
private
def set_user
#user = User.find(params[:id])
end
def user_params
params.require(:user).permit(:name, :first_name, :last_name, :email, :username)
end
end
.
class RegistrationsController < Devise::RegistrationsController
def update
new_params = params.require(:user).permit(:email,
:username, :current_password, :password,
:password_confirmation)
change_password = true
if params[:user][:password].blank?
params[:user].delete("password")
params[:user].delete("password_confirmation")
new_params = params.require(:user).permit(:email,
:username)
change_password = false
end
#user = User.find(current_user.id)
is_valid = false
if change_password
is_valid = #user.update_with_password(new_params)
else
#user.update_without_password(new_params)
end
if is_valid
set_flash_message :notice, :updated
sign_in #user, :bypass => true
redirect_to after_update_path_for(#user)
else
render "edit"
end end
end
Schema:
create_table "users", force: true do |t|
t.string "email", default: "", null: false
t.string "encrypted_password", default: "", null: false
t.string "reset_password_token"
t.datetime "reset_password_sent_at"
t.datetime "remember_created_at"
t.integer "sign_in_count", default: 0, null: false
t.datetime "current_sign_in_at"
t.datetime "last_sign_in_at"
t.string "current_sign_in_ip"
t.string "last_sign_in_ip"
t.datetime "created_at"
t.datetime "updated_at"
t.string "first_name"
t.string "last_name"
t.string "username"
end
add_index "users", ["email"], name: "index_users_on_email", unique: true, using: :btree
add_index "users", ["reset_password_token"], name: "index_users_on_reset_password_token", unique: true, using: :btree

Answer 1

Add this to your ApplicationController
class ApplicationController < ActionController::Base
before_action :configure_permitted_parameters, if: :devise_controller?
protected
def configure_permitted_parameters
devise_parameter_sanitizer.for(:sign_up) << :username
end
end
Source: https://github.com/plataformatec/devise#strong-parameters