it works!!

irb_test

→ curl -o vienna.rb https://gist.github.com/pxlpnk/5257111/raw/a577da6be4807daa4b4a2751659d100f7d1ba9f6/vienna.rb 

→ irb -r "./vienna.rb"

>> v = Vienna.new
=> The next vienna.rb takes place at sektor5 Siebenbrunnengasse 44, 1050 Wien and starts at 2013-04-12 18:00:00 +0100. For more see: http://vienna-rb.at/blog/2013/03/19/second-meetup-to-take-place-at-co-working-space-sektor5/

>> v.where?
=> #<struct Struct::Location name="sektor5", address="Siebenbrunnengasse 44, 1050 Wien", details=nil>

>> v.when?
=> 2013-04-12 18:00:00 +0100

>> v.what_and_why?
=> #<URI::HTTP:0x007fc26983c9c0 URL:http://vienna-rb.at/blog/2013/03/19/second-meetup-to-take-place-at-co-working-space-sektor5/>

>> v.who?
=> {"Floor Drees"=>"@floordrees", "Anton Bangratz"=>"@tony_xpro", "Andreas Tiefenthaler"=>"@pxlpnk"}

>> v.version
=> "v0.0.3 - 2013-03-27 19:39"

>> puts v 
The next vienna.rb takes place at sektor5 Siebenbrunnengasse 44, 1050 Wien and starts at 2013-04-12 18:00:00 +0100. For more see: http://vienna-rb.at/blog/2013/03/19/second-meetup-to-take-place-at-co-working-space-sektor5/
=> nil

vienna.rb

require 'uri'
class Vienna
  def contact
    "@viennarb@"
  end

  def where?
    Struct.new("Location", :name, :address, :details)
    Struct::Location.new("sektor5", "Siebenbrunnengasse 44, 1050 Wien")
  end

  def when?
    Time.new(2013,4,12, 18,00,0, "+01:00")
  end

  def what_and_why?
    URI("http://vienna-rb.at/blog/2013/03/19/second-meetup-to-take-place-at-co-working-space-sektor5/")
  end

  def who?
    organizers = {
      "Floor Drees" => "@floordrees",
      "Anton Bangratz" => "@tony_xpro",
      "Andreas Tiefenthaler" => "@pxlpnk"}
  end

  def to_s
    where = where?.to_a.compact.join(" ")
   "The next vienna.rb takes place at #{where} and starts at #{when?}. For more see: #{what_and_why?}"
  end


  def version
    "v0.0.3 - 2013-03-27 19:39"
  end
end