Is it possible to load Devise in an external module?

I am using Devise in Rails 3, and have a User model in rails that is starting to get kinda crowded.. so I would like to put all of the login meethods inside of a module and include them from my model. I'm trying something like:

app/model/user.rb

class User < ActiveRecord::Base
  include UserImageable
  extend Loginable

  has_one  :profile, :dependent => :destroy
  has_many :items, :dependent => :destroy
  has_many :products, :through => :items

  # Setup accessible (or protected) attributes for your model
  attr_accessible :email, :password, :password_confirmation, :remember_me, :first_name, :last_name, :ph开发者_如何学JAVAone_number, :location, :photo, :profile_attributes, :access_token
  delegate :first_name, :last_name,  :phone_number, :phone_number=, :location, :location=, :photo,  :to  => :profile

  accepts_nested_attributes_for :profile
end

and

lib/autoloads/loginable.rb

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

  def password_require?
    new_record?
  end
end

but the server doesn't seem to like that, as it loads with a NoMeethodError

loginable.rb:4:in `<module:Loginable>': undefined method `devise' for Loginable:Module (NoMethodError)

Is there a way to do what I'm shooting for, or not really?

Thanks

---

This is not the answer you are looking for but, here is my 2 cents: You shouldn't put all that stuff in the User model. devise models have a clear responsibility: signing.

But if you really want to put everything hooked in User.rb, you can split the model in extensions (partially enabling DCI):

Add that to your lib/models/{modelname}/devise_ext.rb

module Models
    module User
        module DeviseExt
            extend ActiveSupport::Concern

            included do
                        devise :database_authenticatable, :registerable, :recoverable, :rememberable, :trackable, :validatable, :omniauthable

            end

            module ClassMethods

            end

            module InstanceMethods      

                def password_require?
                                new_record?
                            end
            end #InstanceMethods

        end
    end
end

Then, you just add it into your model:

include Models::User::DeviseExt

In the app we have in my company we actually have no code at all in models, we put everything in extensions.

---

I've not used Devise yet, but try this:

module Loginable
  def self.included(base)
    base.send :devise, :database_authenticatable, :registerable, :recoverable, :rememberable, :trackable, :validatable, :omniauthable
  end

  def password_require?
    new_record?
  end
end

and in your model, include rather than extend:

class User < ActiveRecord::Base
  include Loginable
end

---

This is an old question, but answers here didn't help me with Rails 4.2.

The problem is that when you define instance methods inside a module and include it into User model, they actually get defined on that instance.

But they don't override same methods in devise itself (like email_required?) defined inside devise method. So when you define email_required? on User model itself it works fine, but in included module they don't override devise's method.

But with Ruby 2 you can do this with prepend. Like this:

module User::AuthHelper
  extend ActiveSupport::Concern

  included do
    prepend DeviseInstanceMethods

    devise :database_authenticatable, :async, :registerable, :recoverable, :rememberable, :trackable, :validatable, :confirmable, \
        :omniauthable, omniauth_providers: [:facebook, :instagram], authentication_keys: [:username]
  end

  module DeviseInstanceMethods
    def email_changed?
      false
    end

    def email_required?
      false
    end
  end
end

Now all methods in DeviseInstanceMethods will override devise's methods. I don't know whether this is best solution, but it works for me. Hope it helps.