Rails adding extra field on signup in devise - ruby-on-rails

Question

I am using devise for my authentication .On sign up page devise is giving 3 fields and I am trying to add an extra field file_field ..But it is giving me error.I am using carrier wave for file uploading .Also I have a attachment column in my users table but the file is not inserting. I am getting error on console. Unpermitted parameters: attachment.Here is my code can anyone help me in resolving this
[console]
Started POST "/users" for 127.0.0.1 at 2016-02-12 12:15:32 +0530
Processing by Devise::RegistrationsController#create as HTML
Parameters: {"utf8"=>"✓", "authenticity_token"=>"M6F9ME0zJkAxyHPETI8qmCf4a8u8bn4wTmZI0v5xtPQ=", "user"=>{"email"=>"aniketshivam#gmail.com", "password"=>"[FILTERED]", "password_confirmation"=>"[FILTERED]", "attachment"=>#<ActionDispatch::Http::UploadedFile:0x000000040ed928 #tempfile=#<Tempfile:/tmp/RackMultipart20160212-13081-16e7tyg>, #original_filename="73273_773684942011_4_40639956_2125564_n.jpg", #content_type="image/jpeg", #headers="Content-Disposition: form-data; name=\"user[attachment]\"; filename=\"73273_773684942011_4_40639956_2125564_n.jpg\"\r\nContent-Type: image/jpeg\r\n">}, "commit"=>"Sign up"}
Unpermitted parameters: attachment
(0.1ms) BEGIN
User Exists (0.6ms) SELECT 1 AS one FROM `users` WHERE `users`.`email` = BINARY 'aniketshivam#gmail.com' LIMIT 1
SQL (0.3ms) INSERT INTO `users` (`created_at`, `email`, `encrypted_password`, `updated_at`) VALUES ('2016-02-12 06:45:32', 'aniketshivam#gmail.com', '$2a$10$kFDcpyXr1l9Mv7epJY3UMOrq9zyOInuQFQMVcqz34nHxvB.rNGk0C', '2016-02-12 06:45:32')
(34.2ms) COMMIT
(0.1ms) BEGIN
SQL (0.3ms) UPDATE `users` SET `current_sign_in_at` = '2016-02-12 06:45:32', `current_sign_in_ip` = '127.0.0.1', `last_sign_in_at` = '2016-02-12 06:45:32', `last_sign_in_ip` = '127.0.0.1', `sign_in_count` = 1, `updated_at` = '2016-02-12 06:45:32' WHERE `users`.`id` = 6
(40.8ms) COMMIT
Redirected to http://localhost:3000/posts
Completed 302 Found in 183ms (ActiveRecord: 76.3ms)
Started GET "/posts" for 127.0.0.1 at 2016-02-12 12:15:32 +0530
Processing by PostsController#index as HTML
User Load (0.4ms) SELECT `users`.* FROM `users` WHERE `users`.`id` = 6 ORDER BY `users`.`id` ASC LIMIT 1
User Load (0.7ms) SELECT `users`.* FROM `users` WHERE `users`.`id` = 6 LIMIT 1
Post Load (0.7ms) SELECT `posts`.* FROM `posts` WHERE `posts`.`user_id` = 6 ORDER BY created_at DESC LIMIT 5 OFFSET 0
Rendered posts/index.html.erb within layouts/application (2.9ms)
<br>
[registration_controller]
class Users::RegistrationsController < Devise::RegistrationsController
# before_filter :configure_sign_up_params, only: [:create]
# before_filter :configure_account_update_params, only: [:update]
# GET /resource/sign_up
# def new
# super
# end
# POST /resource
# def create
# super
# end
# GET /resource/edit
# def edit
# super
# end
# PUT /resource
# def update
# super
# end
# DELETE /resource
# def destroy
# super
# end
# GET /resource/cancel
# Forces the session data which is usually expired after sign
# in to be expired now. This is useful if the user wants to
# cancel oauth signing in/up in the middle of the process,
# removing all OAuth session data.
# def cancel
# super
# end
# protected
# If you have extra params to permit, append them to the sanitizer.
def configure_sign_up_params
devise_parameter_sanitizer.for(:sign_up).permit(:attachment)
end
# If you have extra params to permit, append them to the sanitizer.
# def configure_account_update_params
# devise_parameter_sanitizer.for(:account_update) << :attribute
# end
# The path used after sign up.
# def after_sign_up_path_for(resource)
# super(resource)
# end
# The path used after sign up for inactive accounts.
# def after_inactive_sign_up_path_for(resource)
# super(resource)
# end
end
[user.rb]
class User < ActiveRecord::Base
# Include default devise modules. Others available are:
# :confirmable, :lockable, :timeoutable and :omniauthable
devise :database_authenticatable, :registerable,
:recoverable, :rememberable, :trackable, :validatable
has_many :posts
has_many :comments
mount_uploader :attachment, AttachmentUploader
def self.find_role(id)
User.find(id).roles
end
end
[registrations/new.html.erb]
<h2>Sign up</h2>
<%= form_for(resource, as: resource_name,html: { multipart: true } ,url: registration_path(resource_name)) do |f| %>
<%= devise_error_messages! %>
<div><%= f.label :email %><br />
<%= f.email_field :email, autofocus: true %></div>
<div><%= f.label :password %> <% if #validatable %><i>(<%= #minimum_password_length %> characters minimum)</i><% end %><br />
<%= f.password_field :password, autocomplete: "off" %></div>
<div><%= f.label :password_confirmation %><br />
<%= f.password_field :password_confirmation, autocomplete: "off" %></div>
<br/>
<div >
<%= f.file_field :attachment %>
</div>
<div><%= f.submit "Sign up" %></div>
<% end %>
<%= render "devise/shared/links" %>
[attachment_uploader.rb]
# encoding: utf-8
class AttachmentUploader < CarrierWave::Uploader::Base
# Include RMagick or MiniMagick support:
# include CarrierWave::RMagick
# include CarrierWave::MiniMagick
# Choose what kind of storage to use for this uploader:
storage :file
# storage :fog
# Override the directory where uploaded files will be stored.
# This is a sensible default for uploaders that are meant to be mounted:
def store_dir
"uploadsss/post/#{model.id}"
end
# Provide a default URL as a default if there hasn't been a file uploaded:
# def default_url
# # For Rails 3.1+ asset pipeline compatibility:
# # ActionController::Base.helpers.asset_path("fallback/" + [version_name, "default.png"].compact.join('_'))
#
# "/images/fallback/" + [version_name, "default.png"].compact.join('_')
# end
# Process files as they are uploaded:
# process :scale => [200, 300]
#
# def scale(width, height)
# # do something
# end
# Create different versions of your uploaded files:
# version :thumb do
# process :resize_to_fit => [50, 50]
# end
# Add a white list of extensions which are allowed to be uploaded.
# For images you might use something like this:
# def extension_white_list
# %w(jpg jpeg gif png)
# end
# Override the filename of the uploaded files:
# Avoid using model.id or version_name here, see uploader/store.rb for details.
# def filename
# "something.jpg" if original_filename
# end
end

Answer 1

Try following in registration_controller
before_filter :configure_sign_up_params
def configure_sign_up_params
devise_parameter_sanitizer.for(:sign_up).push(:attachment)
end