reverting custom permalink tag to default cat tag

Hi gang – need some help with a function, if you don’t mind.

I’m using a custom cat tag, “industry,” and this function makes it work for my permalinks, but I’d like for the last conditional (else $taxonomy_slug = ‘blog’;) to allow WP to revert to a default category if no “industry” is selected, whereas this simply reverts to

“‘blog’;”

I tried %category% in place of ‘blog’, which did not work.

Could someone kindly show me how this function can be amended to switch to the selected WP category if an “industry” is not selected …?

with much gratitude…

add_filter('post_link', 'industry_permalink', 10, 3);
add_filter('post_type_link', 'industry_permalink', 10, 3);
 
function industry_permalink($permalink, $post_id, $leavename) {
    if (strpos($permalink, '%industry%') === FALSE) return $permalink;
     
        // Get post
        $post = get_post($post_id);
        if (!$post) return $permalink;
 
        // Get taxonomy terms
        $terms = wp_get_object_terms($post->ID, 'industry');   
        if (!is_wp_error($terms) && !empty($terms) && is_object($terms[0])) $taxonomy_slug = $terms[0]->slug;
        else $taxonomy_slug = 'blog';
 
    return str_replace('%industry%', $taxonomy_slug, $permalink);
}   

• This topic was modified 6 years, 10 months ago by Glenn.