Hello Silverstripe Community,

Ok, I have tried debugging this problem although I know its probably something silly. I want to extend (forum) module so I can customise it and easily keep uptodate from SVN. I have something like;

_config.php

Object::add_extension('Forum', 'ForumExtender');

ForumExtender.php

class ForumExtender extends DataObjectDecorator {
	function updateCMSFields(&$fields) {
		$fields->removeFieldFromTab("Root.Content","Moderators");
		Debug::show('Hello World!');
	}
}

I know the function is running because of the debug message, but the FieldSet is not being updated. I presume its running in the wrong order? Is there anything I can do to override this? Or should I be doing this a different way?

It's likely the tabname is incomplete, try "Root.Content.Main" instead.

If in doubt, check the corresponding addFieldToTab in forum.php to check it matches.

Ah, well spotted. However I dont think it is a typo issue as changing it didn't work, and what I'm actually trying to do is add;

$fields->addFieldToTab("Root.Access", new TreeDropdownField("ForumPendingGroupID", "Group"));