Yii2 загрузка фото beforesave как реализовать?

public function actionCreate()
    {
            $model = new Shekil();

        if ($model->load(Yii::$app->request->post())) {
            if(isset($model->photos)){
                $upload = new UploadForm();
                $upload->imageFile= UploadedFile::getInstances($model, 'photos');
                foreach ($upload->imageFile as $photos) {
                    $photos->name = Yii::$app->getSecurity()->generateRandomString(15).'.'.$photos->extension;
                    $array[] = $photos->name;
                }
                if ($upload->uploadMultiplePhoto() && !empty($array)) {
                    $model->save();
                    foreach ($array as $value) {
                        $query = Yii::$app->db->createCommand()->insert('shekiller', [
                            'shekil_id' => $model->id,
                            'image' => $value
                        ]);
                        if(!$query->execute()){
                            break;
                            $model->delete();
                            return $this->redirect(['view', 'id' => $model->id]);
                        }
                    }
                    return $this->redirect(['view', 'id' => $model->id]);
                }else{
                    var_dump($upload->errors);
                }
            }else{
                $model->save();
                return $this->redirect(['view', 'id' => $model->id]);
            }
        }
        return $this->render('create', [
            'model' => $model,
        ]);
    }