attachment_fu :uploaded_data

Hi.
In my Model DesignThumbnail I use Attachment_fu.

----------------- Model -------------------------------
class DesignThumbnail < ActiveRecord::Base
     has_attachment :content_type => :image,
                 :storage => :file_system,
                 :max_size => 150.kilobytes,
                 :resize_to => '86x170>'
validates_as_attachment
...
end