calendario baseado has_Calendar

gistfile1.rb

#encoding: utf-8
module Atendente::AgendaHelper
  def calendar(options={}, &block)    
    options = {
      :events => nil,
      :field => :created_at,
      :header_format => :week,
      :id => "calendar",
      :month => Date.today.month,
      :today => nil,
      :year => Date.today.year
    }.merge(options)
    
    cols = String.new
    contents = "<div class='grade'><div class='grade-content'>"
    head = String.new
    rows = String.new
    today = Date.today
    date = today.beginning_of_week
    date = date - 1.day if RUBY_PLATFORM =~ /darwin/
    
    # bug de fevereiro
    today_day = today.day
    last_day = Date.new(options[:year], options[:month], 1).end_of_month.day
    today_day = last_day if last_day < today_day
    #
    
    cmd = 'cal '; cmd << '-m ' unless RUBY_PLATFORM =~ /darwin/

    output = IO.popen("#{cmd} #{options[:month]} #{options[:year]}") {|f| f.read}
    
    io = StringIO.new(output)
    lines = io.readlines

    lines = lines[2, lines.size-2]

    lines.map!(&:chomp)

    days = lines.inject([]) do |holder, line|
      0.step(line.size, 3){|n| 
        holder << line[n, 3].squish
      }
      puts holder
      holder
    end
    
    head << content_tag(:ul, :class => 'dias') do
      begin
        (0..6).collect { |i| content_tag(:li, l(date + i.days, :format => options[:header_format])) } * ""
      rescue
        (0..6).collect { |i| content_tag(:li, date + i.days)} * ""
      end
    end
    
    
    rows << content_tag(:ul, :class => :dias) do
    days.in_groups_of(7, "") do |group|
        group.inject("") do |cols, day|
            head << content_tag(:ul, :class => 'datas') do
              if day.blank?
                content_tag(:li, day,:class => "mes-corrente")
              else
                content_tag(:li, day,:class => "mes-inativo")
              end
            end
        end
      end
    end
    
    
    
    contents =  CGI.unescapeHTML(contents+head + rows)
    #concat(contents) if block_given?
    contents =  CGI.unescapeHTML(String.new(contents))
    
    raw contents+"<div></div>"
    
  end
end