Silverstripe 3 date region filter

gistfile1.txt

	public function AllChildrenInDateRegion() {

		return VacaturePage::get()->filter(
			array(
				'ParentID' => $this->ID, 
				'DatumFrom:LessThan' => date('Y-m-d').' 00:00:00',
				'DatumTo:GreaterThan' => date('Y-m-d').' 23:59:59'
			)
		);

	}