I've got a custom taxonomy that is set to Hierarchical = true. However, when I try to access them hierarchically in the URL, it doesn't work.
i.e.
| Training (Taxonomy Name)
| - test-taxonomy
| - - another-test-taxonomy
My expected URL would be mysite.com/training/test-taxonomy/another-test-taxonomy/. That gives a Page Not Found error though.
I can access both test-taxonomy and another-test-taxonomy like so: mysite.com/training/<slug>, but it doesn't seem to work hierarchically.
11 years late, but I just found the solution to this problem in Gavin's link: https://wordpress.org/support/topic/hierarchical-custom-taxonomy-permalinks/#post-1520946
To implement the solution, in my call to register_taxonomy, I changed the
'rewrite' => array(
'slug' => 'training'
)
part to
'rewrite' => array(
'slug' => 'training',
'hierarchical' => true
)
I then went into my Permalink Settings page ( https://example.org/wp-admin/options-permalink.php ) and just clicked the Saved Changes button and, having it large, the URLs of my hierarchical custom taxonomy are now also hierarchical - and they work on every level!! Sorted.
Check this: http://wordpress.org/support/topic/hierarchical-custom-taxonomy-permalinks
Here's the trac ticket: http://core.trac.wordpress.org/ticket/12659
Unfortunately, the bottom line is it can't be done without some serious hacking right now - ran into the same problem a few weeks ago. Likely in near future releases, I would think.
