From: "anthony.green@..." <anthony.green@...>
Date: 2006-10-26T02:45:19+09:00
Subject: Re: Reopening Classes


> Another way to compute timeslots which avoids this might be:
>
>    timeslots = (0..6*24).map {|h| first + h.hour}
>
> Generalizing this to arbitray start and end times is left as an
> exercise to the reader.


Something like this ?

# add a to date method for Time class

class Time
  def to_date
    Date.new(year, month, day)
    rescue NameError
    nil
  end
end

# first date and last date

  first = Time.local(2006, 10, 21, 0, 0, 0)
  last = Time.local(2006, 10, 28, 0, 0, 0)

# calculate the number of days between them

    range = last.to_date - first.to_date

# create your array

    timeslots = (0..range*24).map {|h| first + h.hour}

# remove the last one as it'll be the first time slot of the next day

    @timeslots = timeslots[0, timeslots.size - 1]

# sort by timeslot then by day

    @timeslots.sort! {|a, b| a.strftime("%H%M%S%Y%m%d").to_i <=>
b.strftime("%H%M%S%Y%m%d").to_i}

Tony