Automatically Disable Comments

Add the following code snippet to disable comments on events that ended more than 14 days ago.

add_filter( 'comments_open', 'disable_comments_on_expired_events', 10, 2 );

function disable_comments_on_expired_events( $open, $post_id ) {
    $post = get_post( $post_id );

    // Only apply to the "event" post type
    if ( $post->post_type !== 'event' ) {
        return $open;
    }

    /**
     * key: '_event_end_date' (Events Manager)
     */
    $end_date_raw = get_post_meta( $post_id, '_event_end_date', true );

    if ( $end_date_raw ) {
        $end_timestamp = strtotime( $end_date_raw );
        $fourteen_days_ago = strtotime( '-14 days' );

        // If the event ended more than 14 days before today, close comments
        if ( $end_timestamp < $fourteen_days_ago ) {
            return false;
        }
    }

    return $open;
}

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