Rails - Jun 2007 - validating votes w/ act_as_voteable

I''m have trouble implementing a uniqueness check w/ act_as_voteable
plugin. The 2 approaches I''ve taken:

vote.rb (plugin dir): I tried adding the line
"validates_uniqueness_of" to the votes.rb but there seems to be no
affect

albums.rb (model dir): the validation does not pass but the vote is
being added regardless.

How would I add a model level validation to the act_as_voteable
plugin?



voting action
-----------------------
        vote = Vote.new(:vote => true, :user_id => @current_user.id)
	albums = Albums.find(params[:id])
	albums.votes << vote
-----------------------

vote.rb
-----------------------
class Vote < ActiveRecord::Base
  belongs_to :user
  def self.find_votes_cast_by_user(user)
    find(:all,
      :conditions => ["user_id = ?", user.id],
      :order => "created_at DESC"
    )
  end
end
-----------------------

thanks Dan


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