Help With Coding Challenge - Observer/Notfiers in admin?

[Dayo]

Hello.

This is a follow up to this thread http://www.zen-cart.com/forum/showthread.php?t=88191

I decided to implement a custom notifier but no joy as the event does not seem to trigger my code.

The aim is to edit the DB entries after a user clicks "update" in a payment module admin.

What I have done so far is

1) In module.php, I added

$zco_notifier->notify('NOTIFY_MODULE_AFTER_ADMIN_SAVE_DB_UPDATE'); 

after the while loop that includes....

$db->Execute("update " . TABLE_CONFIGURATION . "
set configuration_value = '" . $value . "'
where configuration_key = '" . $key . "'");

in the "save" switch section. This should call the notifier if I understand the process correctly.

2) in includes/autoloaders, I created a file called config.mynewclass.php with the following code...

<?php

$autoLoadConfig[180][] = array('autoType'=>'class',
                              'loadFile'=>'observers/class.mynewclass.php');
$autoLoadConfig[180][] = array('autoType'=>'classInstantiate',
                              'className'=>'mynewclass',
                              'objectName'=>'mynewclass');
?>

QUERY >> Not sure which breakpoint to use as the wiki is not clear on this. Any tips?

3) In classes/observers, I created a file called class.mynewclass.php with the following code...

<?php
 class mynewclass extends base {
   function mynewclass() {
       global $zco_notifier;
    $zco_notifier->attach($this, array('NOTIFY_MODULE_AFTER_ADMIN_SAVE_DB_UPDATE'));
   }
   
   function update(&$callingClass, $notifier, $paramsArray) {
    
    My code.... 
       
   }
   
 }
 ?>

QUERY >> Can anyone spot where I may have goofed?

Thanks for your help