From: Gavin Sinclair <gsinclair@...>
Date: 2002-11-08T08:36:31+09:00
Subject: Re: understanding modules/classes

From: "Eric Schwartz" <emschwar@fc.hp.com>


> Austin Ziegler <austin@halostatue.ca> writes:
> > On Thu, 7 Nov 2002 10:27:02 +0900, Eric Schwartz wrote:
> > > Okay, that's not a problem. But I can't figure out how to export
> > > classes from my module into the global namespace. In Perl, I'd
> > > just add the functions to @EXPORT, and be done with it. Can this
> > > be done in Ruby as well, or am I just thinking about it the wrong
> > > way? Should I be creating my CGI executable in that same module as
> > > well? Or am I just over-organizing here?
> >
> > Easily enough to do:
>
> <snip>
>
> Okay, thanks to you and Gavin.  One last question: is it good style to
> put that in the class files?  That is, do I put the 'include Foo' in
> bar.rb, or in the file that 'require's it?  I understand it doesn't
> matter; I'm trying to get an idea for good Ruby style.
>
> -=Eric

It is perfectly good style to include a module in a class.  That is one of the
primary aims of modules: in this sense, they are called mix-ins.

BTW, since you expressed thanks, can I ask a favour in return?  Can you write a
post, with "[FAQ]" in the title, summarising the problem and solution?  Then
someone can easily find this information later and add it to the Ruby FAQ.
Thanks!

Gavin