<?php
/**
 * Returns an array of all WooTicket products associated with the event.
 *
 * @param null $post_id
 * @return array
 */
function get_wooticket_products($post_id = null) {
        global $wpdb;
        $id = TribeEvents::postIdHelper($post_id);
        $products = array();

        $product_ids = $wpdb->get_col($wpdb->prepare(
                "SELECT post_id FROM $wpdb->postmeta WHERE meta_key = %s AND meta_value = %d",
                '_tribe_wooticket_for_event', $id
        ));

        if ($product_ids) foreach ($product_ids as $id)
                $products[] = new WC_Product_Simple($id);

        return $products;
} ?>