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<?php |
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namespace BenTools\DoctrineWatcher\Watcher; |
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use BenTools\DoctrineWatcher\Changeset\ChangesetFactory; |
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use BenTools\DoctrineWatcher\Changeset\PropertyChangeset; |
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use Doctrine\Common\EventSubscriber; |
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use Doctrine\Common\Util\ClassUtils; |
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use Doctrine\ORM\Event\LifecycleEventArgs; |
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final class DoctrineWatcher implements EventSubscriber |
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{ |
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public const DEFAULT_OPTIONS = [ |
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'trigger_on_persist' => false, |
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'trigger_when_no_changes' => false, |
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'type' => PropertyChangeset::CHANGESET_DEFAULT |
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]; |
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/** |
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* @var array |
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*/ |
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private $defaulOptions; |
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/** |
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* @var ChangesetFactory |
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*/ |
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private $changesetFactory; |
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/** |
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* @var callable[] |
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*/ |
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private $listeners = []; |
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/** |
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* DoctrineWatcher constructor. |
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* @param array $options |
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* @param ChangesetFactory|null $changesetFactory |
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*/ |
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public function __construct( |
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array $options = self::DEFAULT_OPTIONS, |
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ChangesetFactory $changesetFactory = null |
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) { |
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$this->defaulOptions = $options + self::DEFAULT_OPTIONS; |
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$this->changesetFactory = $changesetFactory ?? new ChangesetFactory(); |
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} |
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/** |
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* @param string $entityClass |
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* @param string $property |
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* @param callable $callback |
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* @param array $options |
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*/ |
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public function watch(string $entityClass, string $property, callable $callback, array $options = []): void |
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{ |
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$options = $options + $this->defaulOptions; |
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$listener = $this->createPropertyListener($entityClass, $property, $callback, $options); |
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$this->listeners[$entityClass][$property][] = $listener; |
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} |
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/** |
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* @param string $entityClass |
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* @param string $property |
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* @param callable $callback |
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* @param array $options |
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*/ |
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public function watchIterable(string $entityClass, string $property, callable $callback, array $options = []): void |
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{ |
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$this->watch($entityClass, $property, $callback, ['type' => PropertyChangeset::CHANGESET_ITERABLE] + $options); |
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} |
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/** |
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* @param string $entityClass |
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* @param string $property |
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* @param callable $callback |
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* @param array $options |
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* @return callable |
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*/ |
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private function createPropertyListener(string $entityClass, string $property, callable $callback, array $options = []): callable |
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{ |
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return function (LifecycleEventArgs $eventArgs, string $operationType) use ($entityClass, $property, $callback, $options) { |
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$em = $eventArgs->getEntityManager(); |
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$unitOfWork = $em->getUnitOfWork(); |
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$entity = $eventArgs->getEntity(); |
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// Do not trigger on the wrong entity |
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if (!$entity instanceof $entityClass) { |
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return; |
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} |
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// Do not trigger if entity was not managed |
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if (false === $options['trigger_on_persist'] && PropertyChangeset::INSERT === $operationType) { |
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return; |
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} |
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// Do not trigger if field has no changes |
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$className = ClassUtils::getClass($entity); |
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$classMetadata = $em->getClassMetadata($className); |
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$changedProperties = $this->changesetFactory->getChangedProperties($entity, $unitOfWork, $classMetadata); |
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if (!in_array($property, $changedProperties) && false === $options['trigger_when_no_changes']) { |
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return; |
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} |
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$changeset = $this->changesetFactory->getChangeset($entity, $property, $unitOfWork, $classMetadata, $options['type']); |
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$callback( |
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$changeset, |
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$operationType, |
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$entity, |
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$property |
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); |
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}; |
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} |
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/** |
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* @param LifecycleEventArgs $eventArgs |
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* @param string $operationType |
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*/ |
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private function trigger(LifecycleEventArgs $eventArgs, string $operationType): void |
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{ |
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$entity = $eventArgs->getEntity(); |
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$class = ClassUtils::getClass($entity); |
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foreach ($this->listeners[$class] ?? [] as $property => $listeners) { |
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foreach ($listeners as $listener) { |
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$listener($eventArgs, $operationType); |
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} |
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} |
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} |
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/** |
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* @param LifecycleEventArgs $eventArgs |
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*/ |
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public function postPersist(LifecycleEventArgs $eventArgs): void |
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{ |
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$this->trigger($eventArgs, PropertyChangeset::INSERT); |
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} |
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/** |
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* @param LifecycleEventArgs $eventArgs |
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*/ |
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public function postUpdate(LifecycleEventArgs $eventArgs): void |
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{ |
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$this->trigger($eventArgs, PropertyChangeset::UPDATE); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function getSubscribedEvents() |
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{ |
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return [ |
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'postPersist', |
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'postUpdate', |
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]; |
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} |
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} |
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bpolaszek /
doctrine-watcher
