After commencement of an action to enforce a lien, the plaintiff shall record in the office of the county recorder of the county, or of the several counties in which the property is situated, a notice of the pendency of the action, as provided in Title 4.5 (commencing with Section 405) of Part 2 of the Code of Civil Procedure, on or before 20 days after the commencement of the action. Only from the time of recording that notice shall a purchaser or encumbrancer of the property affected thereby be deemed to have constructive notice of the pendency of the action, and in that event only of its pendency against parties designated by their real names.