def self.create(img, prod)
    filename = "pr#{prod}_" + File.basename(img.original_filename())
    fs_path = "/home/rene/ruby/virtual/public/images/products/" + filename
    thumb_fs_path = "/home/rene/ruby/virtual/public/images/products/thumb_" + filename
    File.open(fs_path, "w") do |f|
      f.write(img.read)
    end
    create_thumbnail(fs_path, thumb_fs_path, 100, 100)
    @picture = Picture.new()
    @picture[:product_id] = prod
    @picture[:picture_fs_path] = fs_path
    @picture[:picture_web_path] = "/images/products/" + filename
    @picture[:thumb_fs_path] = thumb_fs_path
    @picture[:thumb_web_path] = "/images/products/thumb_" + filename
    @picture.save

  end