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