forked from mirror/Part-DB.Part-DB-server
91 lines
3 KiB
PHP
91 lines
3 KiB
PHP
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<?php
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/**
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*
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* part-db version 0.1
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* Copyright (C) 2005 Christoph Lechner
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* http://www.cl-projects.de/
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*
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* part-db version 0.2+
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* Copyright (C) 2009 K. Jacobs and others (see authors.php)
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* http://code.google.com/p/part-db/
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*
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* Part-DB Version 0.4+
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* Copyright (C) 2016 - 2019 Jan Böhmer
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* 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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*/
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namespace App\EntityListeners;
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use App\Entity\Attachments\Attachment;
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use App\Services\AttachmentHelper;
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use App\Services\AttachmentReverseSearch;
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use Doctrine\ORM\Event\LifecycleEventArgs;
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use Doctrine\ORM\Event\PreUpdateEventArgs;
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use Doctrine\ORM\Mapping\PostRemove;
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use Doctrine\ORM\Mapping\PreUpdate;
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/**
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* This listener watches for changes on attachments and deletes the files associated with an attachment, that are not
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* used any more. This can happens after an attachment is delteted or the path is changed.
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* @package App\EntityListeners
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*/
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class AttachmentDeleteListener
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{
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protected $attachmentReverseSearch;
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protected $attachmentHelper;
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public function __construct(AttachmentReverseSearch $attachmentReverseSearch, AttachmentHelper $attachmentHelper)
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{
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$this->attachmentReverseSearch = $attachmentReverseSearch;
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$this->attachmentHelper = $attachmentHelper;
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}
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/**
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* Removes the file associated with the attachment, if the file associated with the attachment changes.
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* @param Attachment $attachment
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* @param PreUpdateEventArgs $event
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*
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* @PreUpdate
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*/
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public function preUpdateHandler(Attachment $attachment, PreUpdateEventArgs $event)
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{
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if ($event->hasChangedField('path')) {
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$file = new \SplFileInfo($this->attachmentHelper->placeholderToRealPath($event->getOldValue('path')));
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$this->attachmentReverseSearch->deleteIfNotUsed($file);
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}
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}
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/**
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* Removes the file associated with the attachment, after the attachment was deleted.
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*
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* @param Attachment $attachment
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* @param LifecycleEventArgs $event
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*
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* @PostRemove
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*/
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public function postRemoveHandler(Attachment $attachment, LifecycleEventArgs $event)
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{
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$file = $this->attachmentHelper->attachmentToFile($attachment);
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//Only delete if the attachment has a valid file.
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if ($file !== null) {
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$this->attachmentReverseSearch->deleteIfNotUsed($file);
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}
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}
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}
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