public static function get_permalink($id = 0)
{
if (self::$single_link !== null) {
return self::$single_link;
}
$permalink = get_permalink($id);
if ($permalink) {
$query_args['preview'] = 'true';
$permalink = add_query_arg($query_args, $permalink);
self::$single_link = $permalink;
return $permalink;
}
if (isset($_GET['post']) && $id != $_GET['post']) {
return self::get_permalink($_GET['post']);
}
// cpt edit page
if (isset($_GET['wpcf-post-type']) && $id == 0) {
$query = new WP_Query('post_type=' . $_GET['wpcf-post-type'] . '&posts_per_page=1');
if ($query->have_posts()) {
return self::get_permalink($query->posts[0]->ID);
}
}
// fields edit page
if (is_object(self::$post_type) && $id == 0) {
$query = new WP_Query('post_type=' . self::$post_type->name . '&posts_per_page=1');
if ($query->have_posts()) {
return self::get_permalink($query->posts[0]->ID);
}
}
self::$single_link = false;
return self::$single_link;
}
