Limit the number of concurrently open tickets in AS

limit-concurrent-tickets.php

<?php
add_filter( 'wpas_before_submit_new_ticket_checks', 'wpas_limit_concurrently_open_tickets' );
/**
 * Limit the Number of Concurrent Open Tickets
 * 
 * @param bool|WP_Error $go Submission status
 *
 * @return bool|WP_Error
 */
function wpas_limit_concurrently_open_tickets( $go ) {

	var_dump( $go );

	$user_id      = get_current_user_id();
	$open_tickets = wpas_get_user_tickets( $user_id, 'open' );
	$limit        = 1; // Set the maximum number of open ticket a user can have at any given time
	$count        = count( $open_tickets );

	if ( $count >= $limit ) {

		// Make sure $go is not already errored
		if ( ! is_wp_error( $go ) ) {
			$go = new WP_Error();
		}

		// Add a custom error message
		$go->add( 'too_many_open_tickets', sprintf( 'You can not have more than %1$d tickets open at the same time (you currently have %2$d open tickets). Please close your tickets before opening a new one.', $limit, $count ) );

	}

	return $go;

}