librenms-librenms/includes/html/forms/update-port-notes.inc.php

<?php
/*
 * LibreNMS
 *
 * Copyright (c) 2015 Søren Friis Rosiak <sorenrosiak@gmail.com>
 * This program is free software: you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation, either version 3 of the License, or (at your
 * option) any later version.  Please see LICENSE.txt at the top level of
 * the source code distribution for details.
 */
header('Content-type: application/json');

$status    = 'error';
$message   = 'unknown error';

$device_id = mres($_POST['device_id']);
$port_id_notes = mres($_POST['port_id_notes']);
$attrib_value = $_POST['notes'];

if (isset($attrib_value) && set_dev_attrib(array('device_id' => $device_id), $port_id_notes, $attrib_value)) {
    $status  = 'ok';
    $message = 'Updated';
} else {
    $status  = 'error';
    $message = 'ERROR: Could not update';
}
die(json_encode(array(
    'status'       => $status,
    'message'      => $message,
    'attrib_type'  => $port_id_notes,
    'attrib_value' => $attrib_value,
    'device_id'    => $device_id

)));