public function actionDelete($id)
{
$campaign = Campaign::findByPk($id);
if (empty($campaign)) {
throw new BadRequestHttpException(Yii::t('product', 'campaign_not_found'));
}
if ($campaign->isActivated) {
throw new BadRequestHttpException(Yii::t('product', 'can_not_delete'));
}
if (Campaign::deleteAll(['_id' => new \MongoId($id)]) == false) {
throw new ServerErrorHttpException('Failed to delete the campaign for unknown reason.');
}
Yii::$app->getResponse()->setStatusCode(204);
}
