Symptoms:

• The GUI does not allow to update the "Parent service" field in IT-service configuration anymore.

How to reproduce:

• Go to Configuration -> IT services
• Click on a service -> Edit service
• On the following pop-up page, click on "Change" for field "Parent service"
• Find an empty list, e.g. no parent service to chose

How to fix:
The following patch fixes the issue:

– snip –
— frontends/php/services_form.php.orig 2009-12-12 14:05:00.000000000 +0100
+++ frontends/php/services_form.php 2009-12-12 14:04:12.000000000 +0100
@@ -234,7 +234,7 @@

$description = $db_service_data['name'];

• $description = new CSpan($description,'link');
  + $description = new CLink($description,'#');
  $description->setAction('javascript:
  window.opener.document.forms[0].elements[\'parent_name\'].value = '.zbx_jsvalue($db_service_data['name']).';
  window.opener.document.forms[0].elements[\'parentname\'].value = '.zbx_jsvalue($db_service_data['name']).';

– snap –