在yii2中的afterSave重定向

Question

I have an afterSave function in my model which saves the expiry date of some service based on the start period and duration given by the user. My afterSave works fine,but it is not getting redirected after saving the model instead showing a blank page.

Model:

public function afterSave($insert)
{

    $month= "+".$this->duration_in_months." month";
    $this->exp_date=date("Y-m-d H:i:s",strtotime($month));
    $this->save(['exp_date']);

    return parent::afterSave($insert);
} 

Controller:

if($model->save())

    return $this->redirect(['view', 'id' => $model->sub_id]);

} 

How can i redirect afterSave?Thanks in advance!

Answer 1

Proper way is to call the save() from the Controller, which will call the afterSave() implicitly.

You only have to do this in the Controller-Action -

if($model->save()) { $this->redirect(......); }

Answer 2

Your controller is OK, but I see something odd in your "afterSave" method. There is

$this->save(['exp_date'])

First of all standard ActiveRecord "save" must have boolean as its first argument. Next is you will get recursion here - as "afterSave" method is being called inside "save" method.

So I suppose the real problem is that you don't have any error displayed. Try to enable error reporting in your index.php before including Yii:

error_reporting(E_ALL);
ini_set('display_errors', '1');
defined('YII_DEBUG') or define('YII_DEBUG', true);
defined('YII_ENV') or define('YII_ENV', 'dev');

This is only for development.

Answer 3

You can use \\Yii::$app->response->redirect('url')->send() for redirection from everywhere.

Your application shows blank page because you call $this->save(['exp_date']) in afterSave() . It calls afterSave() again and causes endless loop. You should avoid this.

Answer 4

I had the same problem. But it was resolved in the following:

public function afterSave($insert, $changedAttributes)
{
    parent::afterSave($insert, $changedAttributes);

    if ($insert) {
        $month = "+".$this->duration_in_months." month";
        $this->exp_date = date("Y-m-d H:i:s", strtotime($month));
        $this->save(false, ['exp_date']);
    }
}

Answer 5

尝试return $this->redirect();