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DataObjectManager Module /

Discuss the DataObjectManager module, and the related ImageGallery module.

Moderators: martimiz, UncleCheese, Sean, Ed, biapar, Willr, Ingo, swaiba

TreeDropdownField in DataObjectManager

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3 Posts   1624 Views


Community Member, 189 Posts

23 October 2010 at 2:42am


I'm trying to get a TreeDropdownField in a DataObjectManager but can't seem to make it work. Here is my code

		$SideLinksManager = new DataObjectManager(
				  'Label' => 'Label'
			), 'getCMSFields_forPopup'
		$fields->addFieldToTab('Root.Content.SideLinks', $SideLinksManager);
		return $fields;


class SideLink extends DataObject{
	static $db = array(
		'Label' => 'Varchar(150)'
	static $has_one = array(
		'Parent' => 'SiteTree',
		'Target' => 'SiteTree',
		'Image' => 'Image',
		'PageLink' => 'SiteTree'
	public function getCMSFields(){
		$treeDropDownField = new TreeDropdownField("PageLinkID", "Choose a page to link to", "SiteTree");
		return new FieldSet(
			new TextField('Label', 'Label'),

The label field shows no problem but the drop down does not show up. If I change "PageLinkID" to "PageLink' it will show up but will not expand to show any fields.

What am I doing wrong? thanks!


Forum Moderator, 4102 Posts

23 October 2010 at 3:07am

You need to use SimpleTreeDropdownField.

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Community Member, 189 Posts

23 October 2010 at 3:12am

great, thanks.

And I see in the DataObjectManager docs SimpleTreeDropdownField is listed there. arg, when I get frustrated I forget to check the most obvious places.

Thanks again.