gistfile1.ru

  
  def image_tag(source, options = {})
    path = File.join(Rails.root, "public", source.gsub(/\?[\d]+/, ''))
    
    if File.exists?(path)
      size = ImageSize.new(File.read(path)).get_size.join("x")
      options.merge!(:size => size)
    end
    
    super(source, options)
  end