Generating model through Devise does not add fields - Devise with Mongoid

Question

I installed devise as instructed. When I did rails generate devise User devise does generate user.rb, but it does not write the devise modules and their required fields. It only write this inside user.rb

class User
  include Mongoid::Document
end

I used to did the same think before for another application, and for similar command, user.rb is filled with these :

  # Include default devise modules. Others available are:
  # :confirmable, :lockable, :validatable, :timeoutable and :omniauthable
  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :omniauthable

  ## Database authenticatable
  field :email,              type: String, default: ""
  field :encrypted_password, type: String, default: ""

  ## Recoverable
  field :reset_password_token,   type: String
  field :reset_password_sent_at, type: Time

  ## Rememberable
  field :remember_created_at, type: Time

  ## Trackable
  field :sign_in_count,      type: Integer, default: 0
  field :current_sign_in_at, type: Time
  field :last_sign_in_at,    type: Time
  field :current_sign_in_ip, type: String
  field :last_sign_in_ip,    type: String

  ## Confirmable
  # field :confirmation_token,   type: String
  # field :confirmed_at,         type: Time
  # field :confirmation_sent_at, type: Time
  # field :unconfirmed_email,    type: String # Only if using reconfirmable

  ## Lockable
  # field :failed_attempts, type: Integer, default: 0 # Only if lock strategy is :failed_attempts
  # field :unlock_token,    type: String # Only if unlock strategy is :email or :both
  # field :locked_at,       type: Time

What might I did wrong? What step I may have skipped? I really appreciate for the help. Thank you

Answer 1

If you are using Rails4,

Add this line in your Gemfile

gem 'devise', :git => "git://github.com/plataformatec/devise.git"

Then run,

bundle update
rails generate devise User

Now it works fine.