validators.rb breaks after update from Rails 2.2.2 to 2.3.2

I just updated my rails application from 2.2.2 to 2.3.2 and the following message is displayed while trying to start with ./script/ server:

[code] => Booting Mongrel => Rails 2.3.2 application starting on http://0.0.0.0:3000 /opt/local/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/ active_support/core_ext/module/aliasing.rb:33:in `alias_method': undefined method `valid?' for class `ActiveRecord::Base' (NameError)   from /opt/local/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/ active_support/core_ext/module/aliasing.rb:33:in `alias_method_chain'   from /opt/local/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/ active_record/callbacks.rb:224:in `send'   from /opt/local/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/ active_record/callbacks.rb:224:in `included'   from /opt/local/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/ active_record/callbacks.rb:223:in `each'   from /opt/local/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/ active_record/callbacks.rb:223:in `included'   from /opt/local/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/ active_record/base.rb:3143:in `include'   from /opt/local/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/ active_record/base.rb:3143   from /opt/local/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/ active_record/base.rb:3137:in `class_eval'    ... 11 levels...   from /opt/local/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/commands/ server.rb:84   from /opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb: 31:in `gem_original_require'   from /opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb: 31:in `require'   from ./script/server:3 [/code]

I figured out that if I comment out "require 'validators.rb'" inside my environment.rb than it'll work fine. Validators.rb (http:// pastie.org/457289) handles some special validations and sits in my lib directory.

I am wondering what has changed from 2.2.2 to 2.3.2 that all the sudden this rather simple extension wouldn't work anymore.

Does any have an idea?

JM

My guess would be some change to the load order - you'd be better off loading your custom validations in an initializer, so that ActiveRecord is loaded.

--Matt Jones