From: Emanuele Ianni <dierre@...>
Date: 2010-09-17T18:26:14+09:00
Subject: Get hours, seconds and time from Date.day_fraction_to_time


      start = DateTime.now
      sleep 15
      stop = DateTime.now
      #minutes
      puts ((stop-start) * 24 * 60).to_i

      hours,minutes,seconds,frac = Date.day_fraction_to_time(stop-start)

I have the following error:

    `<main>': private method `day_fraction_to_time' called for
Date:Class (NoMethodError)

I've checked */usr/lib/ruby/1.9.1/date.rb* and I've found it:

    def day_fraction_to_time(fr) # :nodoc:
      ss,  fr = fr.divmod(SECONDS_IN_DAY) # 4p
      h,   ss = ss.divmod(3600)
      min, s  = ss.divmod(60)
      return h, min, s, fr * 86400
    end

But I have no problem if I run it with ruby1.8.
*/usr/lib/ruby/1.8/date.rb* gives me:

      def self.day_fraction_to_time(fr)
        ss,  fr = fr.divmod(SECONDS_IN_DAY) # 4p
        h,   ss = ss.divmod(3600)
        min, s  = ss.divmod(60)
        return h, min, s, fr
      end

So I went to see the documentation(1.9)[1] and there's no trace of this
method. I know it's a dumb question, but why did they remove it? There
is even this example on how to use the method in
*/usr/lib/ruby/1.9.1/date.rb*:

     def secs_to_new_year(now = DateTime::now())
         new_year = DateTime.new(now.year + 1, 1, 1)
         dif = new_year - now
         hours, mins, secs, ignore_fractions =
Date::day_fraction_to_time(dif)
         return hours * 60 * 60 + mins * 60 + secs
     end

but I'm still getting the error:

    test.rb:24:in `secs_to_new_year': private method
`day_fraction_to_time' called for Date:Class (NoMethodError)
      from test.rb:28:in `<main>'


  [1]: http://ruby-doc.org/core-1.9/classes/Date.html
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