mdm\upload\UploadBehavior::beforeSave PHP Méthode

Event handler for beforeSave

public beforeSave ( ModelEvent $event )
$event	yii\base\ModelEvent

    public function beforeSave($event)
    {
        if ($this->saveUploadedFile() === false) {
            $event->isValid = false;
        }
    }

UploadBehavior