Require a specific version of ActiveRecord

Question

I have both Rails 2.3.4 and Rails 3.0.0.beta installed on my local machine. I am using ActiveRecord in a stand alone ruby script and when I do require 'active_record' 3.0.0.beta is loaded. How can I force it to require 2.3.4 instead? (without uninstalling 3.0.0.beta)

Answer 1

This is covered in the RubyGems manual @ http://docs.rubygems.org/read/chapter/4

do:

require 'rubygems'
gem 'activerecord', '= 2.3.4'

Answer 2

A little trick is require 'activerecord' when you want 2.3.5 and 'active_record' when you want 3.0.0.beta.

You have a warning when you using activerecord require but it's load only 2.3.5.

After if you want manage several gem in same computer, you can try rvm and gemset system. It's really great.