I'm trying to create a custom permalink structure that will allow me to accomplish the following.
I want my permalink structure to look like this:
projects/category/project-name
or
/%custom-post-type%/%custom-taxonomy%/%post-name%/
I've been able to succesfully use /%category%/ in permalinks for normal, out-of-the-box WP posts, but not for CPTs.
How would creating such a permalink structure affect the URLs or other pages? Is it possible de define a custom permalink structure and restrict it to a single CPT?
Thanks
Lucky for you, I just had to do this for a client project. I used this answer on the WordPress Stackexchange as a guide:
/**
* Tell WordPress how to interpret our project URL structure
*
* @param array $rules Existing rewrite rules
* @return array
*/
function so23698827_add_rewrite_rules( $rules ) {
$new = array();
$new['projects/([^/]+)/(.+)/?$'] = 'index.php?cpt_project=$matches[2]';
$new['projects/(.+)/?$'] = 'index.php?cpt_project_category=$matches[1]';
return array_merge( $new, $rules ); // Ensure our rules come first
}
add_filter( 'rewrite_rules_array', 'so23698827_add_rewrite_rules' );
/**
* Handle the '%project_category%' URL placeholder
*
* @param str $link The link to the post
* @param WP_Post object $post The post object
* @return str
*/
function so23698827_filter_post_type_link( $link, $post ) {
if ( $post->post_type == 'cpt_project' ) {
if ( $cats = get_the_terms( $post->ID, 'cpt_project_category' ) ) {
$link = str_replace( '%project_category%', current( $cats )->slug, $link );
}
}
return $link;
}
add_filter( 'post_type_link', 'so23698827_filter_post_type_link', 10, 2 );
When registering the custom post type and taxonomy, be sure to use the following settings:
// Used for registering cpt_project custom post type
$post_type_args = array(
'rewrite' => array(
'slug' => 'projects/%project_category%',
'with_front' => true
)
);
// Some of the args being passed to register_taxonomy() for 'cpt_project_category'
$taxonomy_args = array(
'rewrite' => array(
'slug' => 'projects',
'with_front' => true
)
);
Of course, be sure to flush rewrite rules when you're done. Good luck!