/** @inheritdoc */ protected function validateValue($value) { if (!is_array($value)) { return [\Yii::t('rbac', 'Invalid value'), []]; } foreach ($value as $val) { if ($this->manager->getItem($val) == null) { return [\Yii::t('rbac', 'There is neither role nor permission with name "{0}"', [$val]), []]; } } }