point-tools/src/Skobkin/Bundle/PointToolsBundle/Service/SubscriptionsManager.php

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<?php
namespace Skobkin\Bundle\PointToolsBundle\Service;
use Doctrine\ORM\EntityManager;
use Doctrine\ORM\EntityManagerInterface;
use Doctrine\ORM\QueryBuilder;
use Skobkin\Bundle\PointToolsBundle\Entity\Subscription;
use Skobkin\Bundle\PointToolsBundle\Entity\SubscriptionEvent;
use Skobkin\Bundle\PointToolsBundle\Entity\User;
class SubscriptionsManager
{
/**
* @var EntityManager
*/
protected $em;
public function __construct(EntityManagerInterface $entityManager)
{
$this->em = $entityManager;
}
/**
* @param User $user
* @param User[]|array $newSubscribersList
*/
public function updateUserSubscribers(User $user, $newSubscribersList = [])
{
/** @var Subscription[] $tmpOldSubscribers */
$tmpOldSubscribers = $user->getSubscribers();
$oldSubscribersList = [];
foreach ($tmpOldSubscribers as $subscription) {
$oldSubscribersList[] = $subscription->getSubscriber();
}
unset($tmpOldSubscribers);
$subscribedList = $this->getUsersListsDiff($newSubscribersList, $oldSubscribersList);
$unsubscribedList = $this->getUsersListsDiff($oldSubscribersList, $newSubscribersList);
/** @var User $subscribedUser */
foreach ($subscribedList as $subscribedUser) {
$subscription = new Subscription();
$subscription
->setAuthor($user)
->setSubscriber($subscribedUser)
;
$user->addSubscriber($subscription);
$logEvent = new SubscriptionEvent();
$logEvent
->setSubscriber($subscribedUser)
->setAuthor($user)
->setAction(SubscriptionEvent::ACTION_SUBSCRIBE)
;
$user->addNewSubscriberEvent($logEvent);
$this->em->persist($subscription);
$this->em->persist($logEvent);
}
unset($subscribedList);
/** @var QueryBuilder $unsubscribedQuery */
$unsubscribedQuery = $this->em->getRepository('SkobkinPointToolsBundle:Subscription')->createQueryBuilder('s');
$unsubscribedQuery
->delete()
->where('s.author = :author')
->andWhere('s.subscriber IN (:subscribers)')
;
/** @var User $unsubscribedUser */
foreach ($unsubscribedList as $unsubscribedUser) {
$logEvent = new SubscriptionEvent();
$logEvent
->setSubscriber($unsubscribedUser)
->setAction($user)
->setAction(SubscriptionEvent::ACTION_UNSUBSCRIBE)
;
$user->addNewSubscriberEvent($logEvent);
$this->em->persist($logEvent);
}
$unsubscribedQuery
->setParameter('author', $user->getId())
->setParameter('subscribers', $unsubscribedList)
->getQuery()->execute();
;
unset($unsubscribedList);
$this->em->flush();
}
/**
* Compares $list1 against $list2 and returns the values in $list1 that are not present in $list2.
*
* @param User[] $list1
* @param User[] $list2
* @return User[] Diff
*/
public function getUsersListsDiff(array $list1 = [], array $list2 = [])
{
$hash1 = [];
$hash2 = [];
foreach ($list1 as $user) {
$hash1[$user->getId()] = $user;
}
foreach ($list2 as $user) {
$hash2[$user->getId()] = $user;
}
return array_diff_key($hash1, $hash2);
}
}