class Wco::Photo

def decode_base64_image
  if image_data && content_type && original_filename
    decoded_data = Base64.decode64(image_data)
    data = StringIO.new(decoded_data)
    data.class_eval do
      attr_accessor :content_type, :original_filename
    end
    data.content_type = content_type
    data.original_filename = File.basename(original_filename)
    self.photo = data
  end
end