WP Travel trip code.

Source

File: /inc/class-itinerary.php
Used by: /inc/class-itinerary.php

Parameters
$code, $post_id

Example:

function prefix_wp_travel_trip_code( $code, $post_id ) {
    $code = ‘TRIP ’. $post_id ;
    return $code;
}
add_filter( 'wp_travel_trip_code', 'prefix_wp_travel_trip_code', 12, 2 );