====== Relations ======

== Relations nicht speichern bei Update: ==
 

<code php>

if ($model->loadAll(Yii::$app->request->post()) && $model->saveAll(['umbrellaclasses', 'umbrellaevents']))
        }

</code>

== Relation definieren im Model ==

<code php>
    function getUmbrella(){
        return $this->hasOne(Umbrella::className(),
            [
                'id FREMD' => 'id EIGEN'
            ]
            );
    }
</code>