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