Reply To: Relationship Fields set as $post->post_parent

• Xtremefaith

• June 27, 2015 at 9:49 am

I was able to get this figured out through a couple stack exchange forums. I did not end up using an ACF field because I wasn’t sure at the time. Essentially I have a rewrite rule hooked to init and post_type_link that uses the meta value of my custom field (which I imagine can be done with ACF as well. Here’s some of the code:

/* Add rewrite rules for permalink structure */
add_action( 'init', array( $this, 'map_rewrite_rules') );
add_filter( 'post_type_link', array( $this, 'filter_map_permalik'), 10, 2 );

public function setup_map_meta_boxes() {
  add_meta_box('story-map', 'Map Series', 'story_attributes_meta_box', 'story', 'side', 'default');
}

public function map_rewrite_rules() {
  add_rewrite_rule( '(.*)/([^/]+)/?$','index.php?story=$matches[2]','top' );
}

I made the custom field like so:

function story_attributes_meta_box($post) {
  $pages = wp_dropdown_pages(
    array(
      'post_type'         => 'map',
      'selected'          => $post->post_parent,
      'name'              => 'parent_id',
      'show_option_none'  => __('(no parent)'),
      'sort_column'       => 'menu_order, post_title',
      'echo'              => 0
    )
  );

  if ( ! empty($pages) ) {
    _e('<label class="fat-wide">Map: </label>');
    echo $pages;
  }
}

Hope that can help you on your project in some way