public function actionEdit($id = null)
{
$model = new CurrencyRateProvider();
$model->loadDefaultValues();
if ($id !== null) {
$model = CurrencyRateProvider::findOne($id);
}
$post = \Yii::$app->request->post();
if ($model->load($post) && $model->validate() && !isset($_GET['CurrencyRateProvider'])) {
$save_result = $model->save();
if ($save_result) {
Yii::$app->session->setFlash('info', Yii::t('app', 'Record has been saved'));
return $this->redirect(['edit', 'id' => $model->id]);
} else {
\Yii::$app->session->setFlash('error', Yii::t('app', 'Cannot update data'));
}
}
return $this->render('form', ['model' => $model]);
}
public function fetchRate(CurrencyPair $currencyPair)
{
/** @var CurrencyRateProvider $provider */
$provider = CurrencyRateProvider::findOne($this->provider);
if ($provider === null) {
throw new Exception('Provider not found');
}
try {
$providerHandler = $provider->getImplementationInstance($this->httpAdapter);
$swap = new Swap($providerHandler);
$rate = $swap->quote($currencyPair->getBaseCurrency() . '/' . $currencyPair->getQuoteCurrency())->getValue();
if ($this->marginMultiplier !== null && $this->marginMultiplier > 1) {
$rate *= $this->marginMultiplier;
}
if ($this->fixedMargin !== null && $this->fixedMargin > 0) {
$rate += $this->fixedMargin;
}
} catch (\Exception $e) {
throw new Exception('Calculating error');
}
return new Rate($rate, new \DateTime());
}
