From: Michael Husmann <Michael.Husmann@...>
Date: 2001-05-28T15:40:04+09:00
Subject: [ruby-talk:15828] subclassing Date

Using ruby 1.6.0 and trying to subclass the Date class like
this:

class My_date < Date
    def initialize(st)
        l = split(".")
        y, m, d = l.collect{|s| s.to_i}
        super(y,m,d)
    end
end

ruby throws the following error messages when invoking:
d = My_date.new("2001.5.28")

/usr/local/lib/ruby/1.6/date.rb:33:in `civil_to_jd':
undefined method `-' for "2001.5.28":String (NameError)
/usr/local/lib/ruby/1.6/date.rb:139:in `exist3?'
/usr/local/lib/ruby/1.6/date.rb:147:in `new3'

I am calling the super method after converting the string
into 3 integers, but obviously the constructor of Date is
called before with the given string.

Any help would be appreciated.

Michael