asset.rb

# == Schema Information
#
# Table name: assets
#
#  id              :integer(4)      not null, primary key
#  description     :text
#  file            :string(255)
#  attachable_id   :integer(4)
#  attachable_type :string(255)
#  created_at      :datetime
#  updated_at      :datetime
#

class Asset < ActiveRecord::Base

  attr_accessible :description,
                  :file,
                  :file_cache

  belongs_to :attachable,
             :polymorphic => true

  mount_uploader :file, AssetUploader


end

profile.rb

  has_many :assets, :as => :attachable

  accepts_nested_attributes_for :assets

views

      //= link_to image_tag(profile.avatar.url(:photo), :id => 'tooltip', :title => 'tooltip html', :width =>'108', :height =>'108' ), profile