Relationship slugs witha custom post type

• 

  • d-artagnan

  • June 19, 2014 at 10:32 pm

  I created a custom post type ‘collection’ and a custom post type ‘item’.
  I used the ACF relationship so when I add an item, I can select under which collection it should be.

  add_action( 'init', 'kc_create_post_type_collection' );
  function kc_create_post_type_collection() {
  	register_post_type( 'kc_collection',
  		array(
  			'labels' => array(
  				'name' => __( 'Collection' ),
  				'singular_name' => __( 'Collection' )
  			),
  			'capability_type' => 'post',
  			'public' => true,
  			'has_archive' => true,
  			'rewrite' => array('slug' => '/collection'),
  			'supports' => array( 'title'),
  			'menu_position' => 21,
  			'menu_icon' => 'dashicons-tag'
  		)
  	);
  }
  
  add_action( 'init', 'kc_create_post_type_items' );
  function kc_create_post_type_items() {
  	register_post_type( 'kc_item',
  		array(
  			'labels' => array(
  				'name' => __( 'Items' ),
  				'singular_name' => __( 'Item' )
  			),
  			'capability_type' => 'post',
  			'public' => true,
  			'has_archive' => true,
  			//'rewrite' => array('slug' => '/collection'), ??????
  			'supports' => array( 'title'),
  			'menu_position' => 21,
  			'menu_icon' => 'dashicons-tag'
  		)
  	);
  }
  

  The slug of collection is like http://www.site.com/collection/collection-name
  The slug of an item should be something like
  http://www.site.com/collection/collection-name/item-name

  But how can I create such a slug? Keep in mind that an item can be under more then one collection.

  Any ideas? Thanks!
• 

  • Twansparant

  • August 22, 2016 at 6:52 pm

  Did you ever figure this out? I want to achieve exactly the same!

  Right now, I have the following setup (I used item & collection to match your example);
  In my post type I have the following rewrite set:

  'rewrite' => array('slug' => 'item/%collection%'),

  And a function that replaces %collection% for the acf value:

  function setupItemPermalink($post_link, $id = 0) {
  	$post = get_post($id);
  	if (is_object($post) && get_post_type($post) == 'item') {
  		$collection = get_field('item_collection', $post->ID);
  		if ($collection) {
  			$collection = get_post($collection[0]); // get first in array
  			return str_replace('%collection%' , $collection->post_name, $post_link);
  		} else {
  			$other = sanitize_title(__('not-in-collection', 'mydomain'));
  			return str_replace('%collection%' , $other, $post_link);
  		}
  	}
  	return $post_link;
  }
  add_filter('post_type_link', 'setupItemPermalink', 1, 3);

  This part works! When I use the_permalink for an item, it outputs:
  http://www.mydomain.com/item/collection-name/item-slug/

  But I’m not sure how I should setup my rewrites?
  This is not working:

  global $wp_rewrite;
  $item_structure = '/item/%collection%/%item%/';
  $wp_rewrite->add_rewrite_tag('%item%', '([^/]+)', 'item=');
  $wp_rewrite->add_permastruct('item', $item_structure, false);

  Any ideas?