dektrium\rbac\models\AuthItem::save PHP Method

    public function save()
    {
        if ($this->validate() == false) {
            return false;
        }
        if ($isNewItem = $this->item === null) {
            $this->item = $this->createItem($this->name);
        } else {
            $oldName = $this->item->name;
        }
        $this->item->name = $this->name;
        $this->item->description = $this->description;
        $this->item->data = $this->data == null ? null : Json::decode($this->data);
        $this->item->ruleName = empty($this->rule) ? null : $this->rule;
        if ($isNewItem) {
            \Yii::$app->session->setFlash('success', \Yii::t('rbac', 'Item has been created'));
            $this->manager->add($this->item);
        } else {
            \Yii::$app->session->setFlash('success', \Yii::t('rbac', 'Item has been updated'));
            $this->manager->update($oldName, $this->item);
        }
        $this->updateChildren();
        $this->manager->invalidateCache();
        return true;
    }