woothemes / woocommerce

		";

		// Filter by tax class

		if ( ! empty( $args['class'] ) ) {

			$class = 'standard' !== $args['class'] ? sanitize_title( $args['class'] ) : '';

			$query .= " AND tax_rate_class = '$class'";

		}

		// Order tax rates

		$order_by = ' ORDER BY tax_rate_order';

		";

		// Filter by tax class.

		if ( ! empty( $prepared_args['class'] ) ) {

			$class = 'standard' !== $prepared_args['class'] ? sanitize_title( $prepared_args['class'] ) : '';

			$query .= " AND tax_rate_class = '$class'";

		}

		// Order tax rates.

		$order_by = sprintf( ' ORDER BY %s', sanitize_key( $prepared_args['orderby'] ) );