I know this is an old thread, but for future reference – the term “revision” in WordPress is a little confusing. It’s not the updated, or revised, post… but the older version. The most updated version is the “parent.” So, if you’re calling the function wp_is_revision_post() on the current version of the post, it will … Read more
Michael Adams, Quantum Bug Creator at Automattic once said: “Revisions are stored in the posts table. I don’t yet know what kind of impact that will have on post queries. We’re going to turn the switch to “on” on WordPress.com sometime soonish and we’ll have a better idea about what kind of damage, if any, … Read more
Can I strip HTML tags in the “Compare Revisions” screen?
Exporting revisions
With the help of @toscho, i made this plugin http://wordpress.org/extend/plugins/wp-changes-tracker/
This is not yet a complete answer, for lack of time, though I’ll try to return later with a more complete example but I just wanted to add a couple of notes. Possibly someone else will jump in soon. To get the ball rolling… Firstly, Yes this is entirely possible, you can create this functionality … Read more
Autosave: Autosave is simply about saving your posts automatically in the background while you are editing. So it’s different from revisions and for every post there will be only one autosave per user. This is from the document: There is only ever a maximum of one autosave per user for any given post. New autosaves … Read more
You should use posts_join and posts_where filters to modify JOIN and WHERE clauses. add_filter( ‘posts_join’ , ‘se333659_posts_join’, 20, 2 ); add_filter( ‘posts_where’ , ‘se333659_posts_where’, 20, 2 ); function se333659_posts_join( $join, $query ) { global $wpdb; if ( isset($query->query_vars[‘_rev_of_publ’]) && $query->query_vars[‘_rev_of_publ’] == ‘1’ ) { $join .= ” LEFT JOIN {$wpdb->posts} AS rev_p ON ({$wpdb->posts}.post_parent = … Read more
You can use wp_get_post_revisions ( int|WP_Post $post_id, $args = null ). It returns an array of revisions for the passed post ID or an empty array if a passed post does not have any revisions. Note that the $args parameter accepts all parameters valid for WP_Query $q = wp_get_post_revisions( 513 ); echo count( $q ); … Read more
As you pointed out already there is a filter. add_filter( ‘woocommerce_register_post_type_product’, ‘wpse_modify_product_post_type’ ); function wpse_modify_product_post_type( $args ) { $args[‘supports’][] = ‘revisions’; return $args; } Put that in your child theme’s functions.php file.