woocommerce_update_product_stock_query filter-hook . WC 1.0

Usage

add_filter( 'woocommerce_update_product_stock_query', 'filter_function_name_4271', 10, 4 );
function filter_function_name_4271( $sql, $product_id_with_stock, $stock_quantity, $string ){
	// filter...

	return $sql;
}

$sql

-

$product_id_with_stock

-

$stock_quantity

-

$string

-

Where the hook is called

$sql = apply_filters( 'woocommerce_update_product_stock_query', $sql, $product_id_with_stock, $stock_quantity, 'set' );

$sql = apply_filters( 'woocommerce_update_product_stock_query', $sql, $product_id_with_stock, $new_stock, $operation );

Where in WP core the hook is used WooCommerce