/**
* Retrieves values by an array field or object property
* @return array
*/
public function execute()
{
$args = $this->getArguments();
$field = null;
if (count($args) === 1) {
$field = $args[0];
}
if (is_string($field)) {
return $this->computeRelatedFields($field);
}
return parent::execute();
}