On Fri, Oct 22, 2010 at 11:41 PM, John Blackbourn <johnbillion+wp at gmail.com<johnbillion%2Bwp at gmail.com> > wrote: > Two handy functions for this scenario: > > wp_is_post_revision( $post_id ) and wp_is_post_autosave( $post_id ). I think save_post also gets triggered when we create an auto-draft while loading up post-new.php.