您可以使用“save_post“胡克，看起来像这样。

add_action( \'save_post\', \'populate_empty_place\' );

function populate_empty_place( $post_id ) {

    //verify post is not a revision
    if ( !wp_is_post_revision( $post_id )  && get_post_type($post_id) == \'report\') {

        // Check for empty place
        // And popluate with your own value     
    }

}