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<?php |
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/** |
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* This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony). |
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* |
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* Copyright (C) 2019 - 2020 Jan Böhmer (https://github.com/jbtronics) |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation; either version 2 |
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* of the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA |
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*/ |
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namespace App\EventSubscriber; |
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use App\Entity\Base\AbstractDBElement; |
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use App\Entity\LogSystem\AbstractLogEntry; |
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use App\Entity\LogSystem\ElementCreatedLogEntry; |
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use App\Entity\LogSystem\ElementDeletedLogEntry; |
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use App\Entity\LogSystem\ElementEditedLogEntry; |
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use App\Services\LogSystem\EventLogger; |
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use Doctrine\Common\EventSubscriber; |
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use Doctrine\ORM\Event\OnFlushEventArgs; |
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use Doctrine\ORM\Event\PostFlushEventArgs; |
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use Doctrine\ORM\Events; |
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use Doctrine\Persistence\Event\LifecycleEventArgs; |
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class EventLoggerSubscriber implements EventSubscriber |
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{ |
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protected $logger; |
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public function __construct(EventLogger $logger) |
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{ |
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$this->logger = $logger; |
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} |
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public function onFlush(OnFlushEventArgs $eventArgs) |
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{ |
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$em = $eventArgs->getEntityManager(); |
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$uow = $em->getUnitOfWork(); |
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/* |
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* Log changes and deletions of entites. |
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* We can not log persist here, because the entities do not have IDs yet... |
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*/ |
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foreach ($uow->getScheduledEntityUpdates() as $entity) { |
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if ($this->validEntity($entity)) { |
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$log = new ElementEditedLogEntry($entity); |
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$this->logger->log($log); |
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} |
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} |
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foreach ($uow->getScheduledEntityDeletions() as $entity) { |
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if ($this->validEntity($entity)) { |
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$log = new ElementDeletedLogEntry($entity); |
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$this->logger->log($log); |
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} |
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} |
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$uow->computeChangeSets(); |
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} |
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public function postPersist(LifecycleEventArgs $args) |
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{ |
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//Create an log entry |
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/** @var AbstractDBElement $entity */ |
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$entity = $args->getObject(); |
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if ($this->validEntity($entity)) { |
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$log = new ElementCreatedLogEntry($entity); |
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$this->logger->log($log); |
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} |
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} |
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public function postFlush(PostFlushEventArgs $args) |
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{ |
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$em = $args->getEntityManager(); |
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$uow = $em->getUnitOfWork(); |
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// If the we have added any ElementCreatedLogEntries added in postPersist, we flush them here. |
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if ($uow->hasPendingInsertions()) { |
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$em->flush(); |
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} |
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} |
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/** |
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* Check if the given entity can be logged. |
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* @param object $entity |
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* @return bool True, if the given entity can be logged. |
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*/ |
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protected function validEntity(object $entity): bool |
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{ |
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//Dont log logentries itself! |
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if ($entity instanceof AbstractDBElement && !$entity instanceof AbstractLogEntry) { |
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return true; |
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} |
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return false; |
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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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Events::onFlush, |
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Events::postPersist, |
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Events::postFlush |
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]; |
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} |
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} |
Part-DB /
Part-DB-symfony
