updated tests, switched to rails 3.0.0rc2

app/models/comment_vote.rb

@@ -2,20 +2,10 @@ class CommentVote < ActiveRecord::Base
   class Error < Exception ; end
 
   attr_accessor :is_positive
-  validates_uniqueness_of :ip_addr, :scope => :comment_id
   belongs_to :comment
   belongs_to :user
-  after_save :update_comment_score
   
   def self.prune!
     destroy_all(["created_at < ?", 14.days.ago])
   end
-  
-  def update_comment_score
-    if is_positive
-      comment.increment!(:score)
-    else
-      comment.decrement!(:score)
-    end
-  end
 end