I'm trying to rewrite my url for a custom_post_type named wr_events with one of its custom_taxonomy terms from event_type

add_action('init', 'wr_events');

function wr_events() {

            'label' => 'Types',
            'singular_label' => 'Typ',
            'hierarchical' => true,
            'query_var' => true,
            'rewrite' => array('slug' => 'events'),

    $labels = array(
        'name' => _x('Events', 'post type general name'),
        'singular_name' => _x('Event', 'post type singular name')

    $args = array(
        'labels' => $labels,
        'public' => true,
        'publicly_queryable' => true,
        'show_ui' => true,
        'query_var' => true,
        'capability_type' => 'post',
        'hierarchical' => false,
        'menu_position' => null,
        'supports' => array('title','editor','thumbnail', 'excerpt'),
        'rewrite' => array(
            //'slug' => 'event',
            'slug' => 'events/%event%',
            'with_front' => false
        'has_archive' => 'events'

    register_post_type( 'wr_event' , $args );

add_action('save_post', 'save_details');

add_filter('post_type_link', 'events_permalink_structure', 10, 4);
function events_permalink_structure($post_link, $post, $leavename, $sample)
    if ( false !== strpos( $post_link, '%event%' ) ) {
        $event_type_term = get_the_terms( $post->ID, 'event_type' );
        $post_link = str_replace( '%event%', array_pop( $event_type_term )->slug, $post_link );
    return $post_link;

So in my case my taxonomy terms would be "workshops" or "lectures" etc. url/events/lectures or url/events/workshops lists all my posts related to this "category", url/events shows a custom archive for all my events. -> this is just what I want however the only thing not working is the complete url to the custom-post itself …

url/events/lectures/post-name - throws a 404!

Any idea why this is happening? My events_permalink_structure() function seems to work correctly as it replaces my permalinks exaclty the way I want.

I installed the "Rewrite Analyzer" Plugin and it shows me "Regex is empty" for wr_event.

I've also tried to flush the Rewrite Rules by visiting the permalink settings. However no effect.

1 Answer 1


Change all your %event% to %event_type%. I hope that works for you.

  • Thank you very very much! Awesome! Don't get it but it works :) Commented Apr 16, 2012 at 14:57
  • 2
    @mathiregister - it's because WP doesn't automatically understand the tag %event%, but it does understand that %event_type% corresponds to your event type taxonomy. Commented May 9, 2012 at 15:55
  • Now i have custom post type with slug /catalog/ which displays all posts, /katalog/whatever/ displays posts in custom taxonomy with slug whatever, and /katalog/whatever/mypost displays single post which belongs to taxonomy whatever. Just put instead of %event% in code above your custom taxonomy name with %%
    – user19336
    Commented Aug 16, 2012 at 19:51

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