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Rails 2.3 star rating widget
<%= hidden_field_tag("lot_id", lot.id) %>
<%= f.submit :Submit %>

def create
        lot = Lot.find_by_id(params[:lot_id])

            @rating = Rating.new(params[:rating])
            @rating.lot_id = @lot.id
            @rating.user_id = current_user.id
            if @rating.save
                flash[:notice] = "your rating has been saved"
                redirect_to :id => nil

            end
    end

    def update
        lot = Lot.find_by_id(params[:lot_id])

            @rating = current_user.ratings.find_by_photo_id(@photo.id)
            if @rating.update_attributes(params[:rating])
                flash[:notice] = "your rating has been saved"
                redirect_to :id => nil

            end

        end
    end