Ruby On Rails in UA/Разработка на ROR/Папку в архив.. как?!

The following example opens zip archive my.zip (creating it if it doesn’t exist) and adds an entry first.txt and a directory entry a_dir to it.

  require 'zip/zip'

  Zip::ZipFile.open("my.zip", Zip::ZipFile::CREATE) {
   |zipfile|
    zipfile.get_output_stream("first.txt") { |f| f.puts "Hello from ZipFile" }
    zipfile.mkdir("a_dir")
  }

The next example reopens my.zip writes the contents of first.txt to standard out and deletes the entry from the archive.

  require 'zip/zip'

  Zip::ZipFile.open("my.zip", Zip::ZipFile::CREATE) {
    |zipfile|
    puts zipfile.read("first.txt")
    zipfile.remove("first.txt")
  }

 def download_client
    client_type = params[:id]
    if client_type.eql?('php')
      file_name = "tmp/ziped_clients/#{current_user.uid}.zip"
      FileUtils.remove_file(file_name, true)
=begin
  Версия с созданием файла пхп архива.
=end
      file = Zip::ZipFile.open(file_name, Zip::ZipFile::CREATE) {
        |zipfile|
        zipfile.mkdir(current_user.uid.to_s)
        zipfile.add("#{current_user.uid}/client.php", "#{RAILS_ROOT}/crawler/client.php")
      }
=begin
  Версия с созданием пхп архива в через прямую запись в архив.
=end  
      #      Zip::ZipOutputStream::open("my.zip"){ |io|
      #        io.put_next_entry("#{current_user.uid}/client.php")
      #        File.open("#{RAILS_ROOT}/crawler/client.php"){|f|
      #          f.each{|line| io.write line}}
      #        io
      #      }
      send_file file_name, :size => file.size,  :filename => "#{current_user.uid}.zip"
    else
      render :text => 'Unknown client format!!!'
    end
    return