From: Ross Bamford <rossrt@...>
Date: 2006-03-24T02:35:41+09:00
Subject: Re: Problem seeing classes in rubygem

On Fri, 2006-03-24 at 01:51 +0900, Wes Gamble wrote:
> I have installed the gem correctly (it shows up when I do gem -list) and 
> my require_gem statement succeeds.
> 
> However, when I go to instantiate one of the classes defined in this 
> gem, the call fails with:
> 
> unitialized constant: BeautifulSoup
> 
> on line 4 of my test case below.
> 
> Here is my test case:
> 
> require 'rubygems'
> require_gem 'rubyful_soup', '>= 1.0.4'
> 
> parser = BeautifulSoup.new(%{"kajsdlfkjads"})

require_gem does (by default) actually require anything inside the gem -
it's just used to tell Gems about version constraints you want to have.
You'll still have to require 'rubyful_soup' to actually load it.

note 1: In normal use, Gems patches require to automatically load gems
as needed, so you could have just had "require 'rubyful_soup'" and the
latest installed version would be installed. If you really do need that
version constraint, however, I think you have to keep the require_gem.

note 2: Gems does support an 'autorequire' attribute in a gem's spec
that allows it to automatically require a given file when the Gem itself
is required, but this is deprecated and rubyful soup doesn't appear to
use it.

-- 
Ross Bamford - rosco@roscopeco.REMOVE.co.uk