user.rb

class User < ActiveRecord::Base  
  rolify :after_add => :event_added_mew_role #, :role_cname => 'Role'
  accepts_nested_attributes_for :roles
  attr_accessible :roles_attributes

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

  # Setup accessible (or protected) attributes for your model
  attr_accessible :name, :email, :password, :password_confirmation, :remember_me

  before_save :ensure_authentication_token
  # attr_accessible :title, :body

  # Connect this model with the user group
  has_and_belongs_to_many :business_groups
  attr_accessible :business_group_ids

  def managed_applications
    if self.has_role? :sys_admin
      Application.all
    else
      self.roles.where(:name => :app_manager).map { |role| role.resource if role.resource_type == "Application" }
    end
  end

  def roles_attributes=(roles_attrs)
    roles_attrs.each do |key, role_attrs|
      if (rid = role_attrs[:resource_id].presence) && (rtype = role_attrs[:resource_type].presence)
        resource = Kernel.const_get(rtype).find(rid)
      end

      self.add_role role_attrs[:name], resource
    end
  end

  def event_added_mew_role(role)
    puts '======================================================================='
    logger.info role
    puts role
  end
end