1st refactor of devise identity management

gistfile1.rb

# refactoring of Kam Low's ::find_for_oauth
# Thanks so much for this article about managing multiple providers with omniauth 
# Check it out: http://sourcey.com/rails-4-omniauth-using-devise-with-twitter-facebook-and-linkedin/

  def self.find_for_oauth(auth, signed_in_resource = nil)
    identity = Identity.find_for_oauth(auth)
    user = signed_in_resource ? signed_in_resource : identity.user
    user = find_for_oauth_email(auth) || create_for_oauth(auth) if user.nil?
    update_identity(identity, user)
    user
  end
  
  
  def self.find_for_oauth_email(auth)
    email = auth.info.email if auth_email_is_verified(auth)
    user = User.find_by(email: email) if email
  end
  
  def self.create_for_oauth(auth)
    user = User.new(
      first_name: auth.extra.raw_info.first_name || auth.info.name,
      last_name: auth.extra.raw_info.last_name || auth.info.name,
      password: Devise.friendly_token[0,20],
      email: auth_email_is_verified(auth) ? auth.info.email : "#{TEMP_EMAIL_PREFIX}-#{auth.uid}-#{auth.provider}.com"
    )
    user.skip_confirmation!
    user.save!
    user
  end
  
  def self.auth_email_is_verified(auth)
    auth.info.email && (auth.info.verified || auth.info.verified_email)
  end
  
  def self.update_identity(identity, user) 
    if identity.user != user
      identity.user = user
      identity.save!
    end
  end

Not a fan of the method names... but it is a start