/**
* Renders a tree input.
*
* @return $this the field object itself
*/
public function treeInput($options = [])
{
if (!$options['class']) {
throw new Exception('Class name is missed');
}
$object = new $options['class']();
$data = $object->getTreeData('')['children'];
$input = '';
$input .= '<div class="html-tree">';
$input .= FieldHelper::buildHtmlTreeInput($this->model, $this->attribute, $data);
$input .= '</div>';
$this->parts['{input}'] = $input;
return $this;
}
