gistfile1.txt

<?php

// Get the connected posts
$child_posts  = Post_Connector::API()->get_children( "course", get_the_id() );
$parent_posts = Post_Connector::API()->get_parents( "course", get_the_id() );

$my_connected_posts = array_merge( $child_posts, $parent_posts );

// Check
if ( count( $my_connected_posts ) > 0 ) {

	// Loop
	foreach ( $my_connected_posts as $my_connected_post ) {

		// Display the title with a link
		echo "<a href='" . get_permalink( $my_connected_post->ID ) . "'>" . $my_connected_post->post_title . "</a><br/>";

	}

}