/** * Overridden to use _idFieldName by default. * * @param null $valueField * @param string $labelField * @param array $additional * @return array */ protected function _toOptionArray($valueField = null, $labelField = 'name', $additional = []) { if ($valueField === null) { $valueField = $this->getIdFieldName(); } return parent::_toOptionArray($valueField, $labelField, $additional); }