From: A LeDonne <aledonne.listmail@...>
Date: 2006-01-18T00:30:04+09:00
Subject: Re: [newbie] this month, the next month, and the one after that

On 1/16/06, Detlef Reichl <detlef.reichl@gmx.org> wrote:
> Am Dienstag, den 17.01.2006, 04:45 +0900 schrieb Mason Kessinger:
> > What I want to do is simple.
> >
> > I'd like code that prints out the name of this month (January) the next
> > month (February) and the one after that (March)
> >
> > I've been able to print this month:
> >
> > <% t = Time.now %>
> > <%= t.strftime(" This Month is: %B") %>
> >
> > But I can't figure out how to get the next months to print out!
> >
>
> Try this:
>
> irb(main):040:0* t = Time.now
> => Mon Jan 16 21:27:58 CET 2006
> irb(main):041:0> m = t.mon
> => 1
> irb(main):042:0> nt = Time.mktime 2006, m + 1
> => Wed Feb 01 00:00:00 CET 2006
> irb(main):043:0> p nt.strftime("%B")
> "February"
> => nil
> irb(main):044:0> nt = Time.mktime 2006, m + 2
> => Wed Mar 01 00:00:00 CET 2006
> irb(main):045:0> p nt.strftime("%B")
> "March"
> => nil
>
>
> Cheers
> detlef
>

Along with Time.mktime, there are Date methods to shift dates by a
number of months... Date#>> and Date#<< . Which you use depends on
whether you need Dates or Times.

irb(main):022:0> require 'date'
=> true
irb(main):023:0> bob = Date.today()
=> #<Date: 4907505/2,0,2299161>
irb(main):024:0> puts bob.strftime()
2006-01-17
=> nil
irb(main):025:0> puts bob.strftime("%B")
January
=> nil
irb(main):026:0> nextmonth = bob >> 1
=> #<Date: 4907567/2,0,2299161>
irb(main):027:0> puts nextmonth.strftime()
2006-02-17
=> nil
irb(main):028:0> puts nextmonth.strftime("%B")
February
=> nil
irb(main):029:0> one_after_that = bob >> 2
=> #<Date: 4907623/2,0,2299161>
irb(main):030:0> puts one_after_that.strftime()
2006-03-17
=> nil
irb(main):031:0> puts one_after_that.strftime("%B")
March
=> nil

-A