/**
* Gets the first child of the item or the top most if the given item is null
* @param PageContent $item
* @return PageContent
*/
public function FirstChildOf($item)
{
if ($item) {
$sql = Access::SqlBuilder();
$tbl = PageContent::Schema()->Table();
$where = $sql->Equals($tbl->Field('Parent'), $sql->Value($item->GetID()))->And_($sql->IsNull($tbl->Field('Previous')));
return PageContent::Schema()->First($where);
} else {
return $this->TopMost();
}
}
