package migrate

gistfile1.txt

function migrate_old_package( $post_id ) {
	
	global $wpdb;
	
	// fix all the slides
	$slides = $wpdb->get_results( $wpdb->prepare("
		SELECT * FROM $wpdb->posts AS s WHERE s.post_type = 'time_slide' AND s.post_parent = $post_id
	"));
	
	foreach( $slides as $slide ) {
		$hub_id = get_post_meta( $slide->ID, 'time_hub_id', true );
		$updated = wp_update_post( array(
			'ID' => $slide->ID,
			'post_parent' => $hub_id
		));
		if( $updated ) delete_post_meta( $slide->ID, 'time_hub_id' );
	}
}