From: Todd Benson <caduceass@...>
Date: 2008-03-04T05:42:56+09:00
Subject: Re: making a monthly calendar...

On Mon, Mar 3, 2008 at 2:14 PM, Mikkel Bruun <mikkel@helenius.dk> wrote:
> Todd Benson wrote:
>  > On Mon, Mar 3, 2008 at 1:02 PM, Todd Benson <caduceass@gmail.com> wrote:
>
> >>  >     offset.upto(days.length+offset){boxes[offset+i]=days[i];i=i+1}
>
> >>  >  boxes array into parts of 7
>
> >>  with the correct number of days in each, centered around the current
>
> >>  display, but, obviously, you won't have to do that, because you have
>  >>
>
> >>  today = Date.today #use whatever date you want
>  >>
>  >> offset = Date.new(today.year, today.month, 1).wday
>  >>  # ^^^^^^ that was the line I screwed up at first
>  >>  months_of_concern = (-1..1).inject([]) {|a, i| a << (today.month + i)}
>  >>
>  >> month_ranges = months_of_concern.map {|month| 1..Date.new( today.year,
>  >>  month, -1 ).day}
>  >
>  > That's one line and suppose to be today.month following today.year.
>  >
>  >>  day_sets = month_ranges.map {|i| i.map}
>  >>
>  >> offset.times {day_sets[1].unshift day_sets[0].pop}
>  >>  p day_sets[1..2].flatten.slice(0..42)
>  >>
>  >
>  > Todd
>
>  thanks for all your help
>
>  but your code seems to break when changing years. showing january 2008
>  breaks when populating decemeber 2007 etc...
>
>  i believe this line has to take this into account:
>
>
>   month_ranges = months_of_concern.map {|month| 1..Date.new( today.year,
>     month, -1 ).day}
>
>
>  Mikkel

Yeah, I just realized the edge cases of January and December fail.  I
thought the Date object covered that with a -1 or 13 month.

I'm looking into it right now.  You might be better off subtracting a
week and adding a week for your big array.  For example...

puts Date.new(2008, 1, 5) - 7

=> 2007-12-29

Todd