protected function load()
{
if (!$this->loaded) {
$this->loaded = true;
$dataRows = TreeView::EXPANDED !== $this->treeView->mode ? $this->getDataRows() : $this->treeView->getDataRows();
foreach ($dataRows as $dataRow) {
if (empty($this->dataRow) && empty($dataRow->parentId) || !empty($this->dataRow) && $this->dataRow->id === $dataRow->parentId) {
$name = $dataRow[$this->treeView->primaryKey];
$node = new TreeViewNode($this, $name, $dataRow);
$node['nodeLink'] = clone $this['nodeLink'];
if (TreeView::EXPANDED === $this->treeView->mode && ($this->treeView->rememberState && !$node->isSessionState() || !$this->treeView->rememberState)) {
$node->expand();
}
}
}
}
}
