public function testEmbeddedRelation()
 {
     //simulate form input
     $post = ['oPrice' => ['Price' => '10.00', 'Cost' => '10.00', 'Discount' => '0', 'QuantityMeasure' => '796', 'Quantity' => '11.00']];
     $price = new oPrice();
     $transport = new oTransport();
     $transport->load(['oTransport' => ['@class' => 'Transport', 'TransportIdentifier' => 'AB0202AM23', 'NameMrkCar' => 'KAMAZ', 'model' => '2207', 'volume' => '10000', 'mass' => '4000', 'Note' => 'Truck']]);
     $price->transport = $transport;
     //! equal THAT - will create ActiveRecord if exists
     $this->assertTrue($price->load($post), 'Load price POST data');
     $this->assertTrue($price->validate(), 'Validate price');
     $this->assertTrue($price->save(), 'Create price');
     $priceFind = oPrice::find()->where(['@rid' => $price['@rid']])->with(['transport'])->one();
     $this->assertTrue($priceFind->QuantityMeasure == '796', 'Check QuantityMeasure');
     $this->assertTrue($priceFind->transport->TransportIdentifier == 'AB0202AM23', 'Check relation embedded transport->TransportIdentifier');
     $priceFind->QuantityMeasure = '999';
     $priceFind->transport->TransportIdentifier = 'modify TransportIdentifier';
     $this->assertTrue($priceFind->validate(), 'Validate price');
     $this->assertTrue($priceFind->save(), 'Update price an embedded relation');
     $priceFind2 = oPrice::find()->where(['@rid' => $price['@rid']])->with(['transport'])->one();
     $this->assertTrue($priceFind2->QuantityMeasure == '999', 'Check modify QuantityMeasure');
     $this->assertTrue($priceFind2->transport->TransportIdentifier == 'modify TransportIdentifier', 'Check modify relation embedded transport->TransportIdentifier');
     return $priceFind;
 }
 public function getTransport()
 {
     return $this->embeddedOne(oTransport::className(), 'transport');
 }