woothemes / woocommerce

	$product_terms = get_the_terms( $product_id, 'product_cat' );

	if ( $product_terms ) {

		$product_cats = array();

		foreach ( $product_terms as $term ) {

			$product_cats[ $term->term_id ] = $term->parent;

		}

		_wc_term_recount( $product_cats, get_taxonomy( 'product_cat' ), false, false );

	}

	$product_terms = get_the_terms( $product_id, 'product_tag' );

	$product_terms = get_the_terms( $product_id, 'product_tag' );

	if ( $product_terms ) {

		$product_tags = array();

		foreach ( $product_terms as $term ) {

			$product_tags[ $term->term_id ] = $term->parent;

		}

		_wc_term_recount( $product_tags, get_taxonomy( 'product_tag' ), false, false );

	}

}

add_action( 'woocommerce_product_set_stock_status', 'wc_recount_after_stock_change' );