/**
* Updates an existing Rate model.
* If update is successful, the browser will be redirected to the 'view' page.
* @param integer $id
* @return mixed
*/
public function actionUpdate($id)
{
$model = $this->findModel($id);
if ($model->load(Yii::$app->request->post()) && $model->save()) {
return $this->redirect(['view', 'id' => $model->id]);
} else {
$currency_list = Currency::getCurrencyList();
return $this->render('update', ['model' => $model, 'currency' => $currency_list]);
}
}