/**
* Updates an existing Book 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);
$searchModel = new BookSearch();
$authors = $searchModel->getAuthors()->all();
if ($model->load(Yii::$app->request->post()) && $model->save()) {
$url = Yii::$app->session->get('lastBookIndexUrl');
if (!$url) {
$url = "/";
}
return $this->redirect($url);
} else {
return $this->render('update', ['model' => $model, 'authors' => $authors]);
}
}
