def download(parent_path=nil)
      file = Pathname('.').join((parent_path || album_name), url.split('/').last)
      @downloader = Downloader.new(url, file)
      @downloader.download
    end
def download(parent_path=nil)
      file = Pathname('.').join((parent_path || album_name), url.split('/').last)
      @downloader = Downloader.new(url, file)
      @downloader.download
    end
user_id is who use the widget, could be 0.
 attr_accessor :user_id, :width, :height, :widgetCode
 @todo I wish index could be fetch automatically from somewhere.