/**
* @inheritdoc
*/
public function subscribe($subscriber_id, $label = null, $categories = null, $exceptions = null)
{
$trx = models\DbSubscription::getDb()->transaction !== null ? null : models\DbSubscription::getDb()->beginTransaction();
$subscription = models\DbSubscription::find()->withQueue($this->id)->withSubscriber($subscriber_id)->one();
if ($subscription === null) {
$subscription = new models\DbSubscription();
$subscription->setAttributes(['queue_id' => $this->id, 'subscriber_id' => $subscriber_id, 'label' => $label]);
} else {
$subscription->is_deleted = 0;
}
if (!$subscription->save()) {
throw new Exception(Yii::t('app', 'Failed to subscribe {subscriber_id} to {queue_label}', ['subscriber_id' => $subscriber_id, 'queue_label' => $this->label]));
}
$this->saveSubscriptionCategories($categories, $subscription->primaryKey, false);
$this->saveSubscriptionCategories($exceptions, $subscription->primaryKey, true);
if ($trx !== null) {
$trx->commit();
}
return true;
}