Custom post type permalink structure

Question

I've browsed tons of Q/A on stackexchange, google, wordpress forums... but haven't found yet a definitive answer to what looks like to be a common issue since the introduction of custom post types.

I've set my permalinks structure from Wordpress admin permalink settings page as:

/%post_id%/%post_name%/

since this is a good practice to improve database performance

however, I noticed my custom post types (I have several in one configuration) still appear as:

%cpt_slug%/%post_name%/

while what I really want is

%cpt_slug%/%post_id%/%post_name%/

and actually would love if it could also work as

%cpt_slug%/%post_id%/%taxonomy%/%post_name%/

but as for now, I would like to get the post_id work in the cpt structure

how to achieve this?

there was a wordpress plugin but apparently it was withdrawn because had some issues (and anyway is no longer mantained)

Answer 1

function myrules(){
    add_rewrite_rule('^yourcptslughere/([^/]*)/([^/]*)/([^/]*)/?','index.php?p=$matches[1]&taxonomy=$matches[2]&name=$matches[3]','top');
}
add_action('init','myrules');

Replace the 'yourcptslughere' with what you wanted, and then add that to functions.php then flush your rewrite rules, and the final example you posted should work. I doubt it will be what the_permalink() returns however so you will have to construct the urls yourself, however they should be viewable at those URLs e.g.:

example.com/randomcptslug/123/exampletaxonomy/testpost

Answer 2

WordPress are working on increasing the performance of Custom Permalink Structures which is supposed to be completed on the next update