carrier wave file

gistfile1.rb

  def data
    @data ||= File.read pdf_template_path
  end
  
  def pdf_template_path
    @tmp_path ||= @pdf_template.template.tap { |u| u.cache_stored_file! }.path
  end
  
  def cleanup
    File.delete(pdf_template_path) if File.exist?(pdf_template_path)
  end