Table with Prawn

teste.rb

  def to_pdf
    bounding_box([0, 770], :width => 520, :height => 40) do
			stroke_bounds
			text_box "18. Februar 2013 -", :at => [5, 35]
			text_box "24. Februar 2013", :at => [5, 20]
		end

		move_down 2

		header_1 = make_cell(:content => "18 Mo", width: 68)
		header_2 = make_cell(:content => "19 Di", width: 68)
		header_3 = make_cell(:content => "20 Mi", width: 68)
		header_4 = make_cell(:content => "21 Do", width: 68)
		header_5 = make_cell(:content => "22 Fr", width: 68)
		header_6 = make_cell(:content => "23 Sa", width: 68)
		header_7 = make_cell(:content => "24 So", width: 69)

		table([ [{:content => "          ", :rowspan => 2}, header_1, header_2, header_3, header_4, header_5, header_6, header_7],
						[{:content => "", :colspan => 4}, "     ", "     ", "     "],
						["08:00", {:content => "", :colspan => 4}, "     ", "     ", "     "],
						["09:00", {:content => "", :colspan => 4}, "     ", "     ", "     "],
						["10:00", {:content => "", :colspan => 4}, "     ", "     ", "     "],
						["11:00", {:content => "", :colspan => 4}, "     ", "     ", "     "],
						["12:00", {:content => "", :colspan => 4}, "     ", "     ", "     "],
						["13:00", {:content => "", :colspan => 4}, "     ", "     ", "     "],
						["14:00", {:content => "", :colspan => 4}, "     ", "     ", "     "],
						["15:00", {:content => "", :colspan => 4}, "     ", "     ", "     "],
						["16:00", {:content => "", :colspan => 4}, "     ", "     ", "     "],
						["17:00", {:content => "", :colspan => 4}, "     ", "     ", "     "],
						["18:00", {:content => "", :colspan => 4}, "     ", "     ", "     "],
						[{:content => ""}, {:content => ""}, {:content => ""}, {:content => ""}, {:content => ""}, {:content => ""}, {:content => ""}, {:content => ""}],
						["", "", "", "", "", "", "", ""],
						["", "", "", "", "", "", "", ""]])

  end

teste_controller.rb

  def teste
    teste = Reports::Teste.new
    render :text => teste.render, :content_type => "application/pdf; charset=ISO-8859-1"
  end