ar3_scopes_for_ar2.rb

# Add this file to config/initializers in a Rails 2 app
ActiveRecord::Base.class_eval do
 
  # Setup some useful generic scopes
  named_scope :ordered, proc{ { :order => primary_key } }
  named_scope :where,   proc{|*conditions| { :conditions => conditions.size == 1 ? conditions.first : conditions } }
  named_scope :joins,   proc{|joins| { :joins => Array(joins).join(' ') } }
  named_scope :limit,   proc{|count| { :limit => count } }
  named_scope :offset,  proc{|offset| { :offset => offset } }
  named_scope :order,   proc{|order| { :order => order.to_s } }
 
end