gistfile1.rb

    @search = Sunspot.search(KarastanCarpet) do |search|
      search.keywords(params[:keywords]) if params[:keywords].present?

      search.with(:effective_brand, KarastanCarpet.brand_for_dealer(@dealer))
      
      search.with(:color_category_names).any_of(
        params[:color_category_names] ) if params[:color_category_names].present?
        
      search.with(:fiber_name).any_of(
        params[:fiber_names] ) if params[:fiber_names].present?

      search.with(:style_names).any_of(
        params[:style_names] ) if params[:style_names].present?
        
      search.without(:id,
        @dealer_catalog.custom_search_params[:id_not_in]) if @dealer_catalog && @dealer_catalog.custom_search_params[:id_not_in].present?

      search.facet(:color_category_names)
      search.facet(:style_names)
      search.facet(:fiber_name)
      
      search.order_by(:color_category_names_count, :desc)
      
      search.paginate(:page => params[:page], :per_page => 10)
    end