From: Malcolm Lockyer <maxpenguin@...>
Date: 2007-11-08T06:19:07+09:00
Subject: Re: define_method

Hey, thanks for the replies guys, I am pretty noob with ruby so thanks
for your help.

Yes Robert, that wasn't my use case - that was just the most
simplified code that shows the problem I was having. I didn't want to
bore you all with loads of irrelevant code. If you are interested I
was trying to build a dynamic enumeration style class (vaguely similar
to java or c#'s way of doing it), where I could have the pseudo
constant (i.e. TestClass.Blue, TestClass.Red etc.) setup by calling
the constructor something like TestClass.new(:Blue => 1, :Red => 2
etc.) and also be able to iterate through the keys and stuff.


Anyway, thanks again for your help guys.
Malcolm

On 11/8/07, Malcolm Lockyer <malcolm@endev.co.nz> wrote:
> Hey, thanks for the replies guys, I am pretty noob with ruby so thanks
> for your help.
>
> Yes Robert, that wasn't my use case - that was just the most
> simplified code that shows the problem I was having. I didn't want to
> bore you all with loads of irrelevant code. If you are interested I
> was trying to build a dynamic enumeration style class (vaguely similar
> to java or c#'s way of doing it), where I could have the pseudo
> constant (i.e. TestClass.Blue, TestClass.Red etc.) setup by calling
> the constructor something like TestClass.new(:Blue => 1, :Red => 2
> etc.) and also be able to iterate through the keys and stuff.
>
>
> Anyway, thanks again for your help guys.
> Malcolm
>
> On 11/8/07, Robert Klemme <shortcutter@googlemail.com> wrote:
> > 2007/11/7, Malcolm Lockyer <maxpenguin@gmail.com>:
> > > Hi Guys,
> > >
> > > I am trying to use define_method like:
> > >
> > > class TestClass
> > >   def initialize
> > >     define_method("hello") { || puts "Hello" }
> > >   end
> > > end
> > >
> > > x = TestClass.new
> > > x.hello
> > >
> > > I am always getting:
> > > NoMethodError: undefined method `define_method'
> > >
> > > Do I need to require something? Am I doing something wrong, or am I
> > > completely missing the boat!?
> >
> > Is this really your use case?  Since you know which method you define,
> > you can do it with a normal def anyway.  So I suspect that you are
> > doing something else.  What exactly is it?
> >
> > Kind regards
> >
> > robert
> >
> > --
> > use.inject do |as, often| as.you_can - without end
> >
> >
>