new sessin

gistfile1.txt

# app/models/user.rb
 def self.new_with_session(params, session)
    super.tap do |user|
      if data = session["devise.facebook_data"] && session["devise.facebook_data"]["extra"]["raw_info"]
        user.email = data["email"] if user.email.blank?
      end
    end
  end

  def self.from_omniauth(auth)
    user = User.find_by('email = ?', auth['info']['email'])
    if user.blank?
       user = User.new(
         {
          provider: auth.provider,
          uid: auth.uid,
          email: auth.info.email,
          password: Devise.friendly_token[0,20]
         }
       )
       user.save!
    end
    user
  end