2015-11-27 14:54:31 +03:00
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<?php
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/**
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* @author Vincent Petry <pvince81@owncloud.com>
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*
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2016-01-12 17:02:16 +03:00
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* @copyright Copyright (c) 2016, ownCloud, Inc.
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2015-11-27 14:54:31 +03:00
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* @license AGPL-3.0
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*
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* This code is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License, version 3,
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* as published by the Free Software Foundation.
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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 Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License, version 3,
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* along with this program. If not, see <http://www.gnu.org/licenses/>
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*
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*/
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namespace OCA\DAV\SystemTag;
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use Sabre\DAV\Exception\Forbidden;
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use Sabre\DAV\Exception\NotFound;
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use Sabre\DAV\Exception\BadRequest;
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2015-12-03 13:26:16 +03:00
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use Sabre\DAV\Exception\PreconditionFailed;
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2015-11-27 14:54:31 +03:00
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use Sabre\DAV\ICollection;
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use OCP\SystemTag\ISystemTagManager;
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use OCP\SystemTag\ISystemTagObjectMapper;
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use OCP\SystemTag\ISystemTag;
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use OCP\SystemTag\TagNotFoundException;
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/**
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* Collection containing tags by object id
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*/
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class SystemTagsObjectMappingCollection implements ICollection {
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/**
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* @var string
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*/
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private $objectId;
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/**
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* @var string
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*/
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private $objectType;
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/**
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* @var ISystemTagManager
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*/
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private $tagManager;
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/**
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* @var ISystemTagObjectMapper
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*/
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private $tagMapper;
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2016-01-20 13:47:23 +03:00
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/**
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* Whether to return results only visible for admins
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*
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* @var bool
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*/
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private $isAdmin;
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2015-11-27 14:54:31 +03:00
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/**
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* Constructor
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*
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* @param string $objectId object id
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* @param string $objectType object type
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2016-01-20 13:47:23 +03:00
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* @param bool $isAdmin whether to return results visible only for admins
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2015-11-27 14:54:31 +03:00
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* @param ISystemTagManager $tagManager
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* @param ISystemTagObjectMapper $tagMapper
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*/
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2016-01-20 13:47:23 +03:00
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public function __construct($objectId, $objectType, $isAdmin, $tagManager, $tagMapper) {
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2015-11-27 14:54:31 +03:00
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$this->tagManager = $tagManager;
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$this->tagMapper = $tagMapper;
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$this->objectId = $objectId;
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$this->objectType = $objectType;
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2016-01-20 13:47:23 +03:00
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$this->isAdmin = $isAdmin;
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2015-11-27 14:54:31 +03:00
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}
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function createFile($tagId, $data = null) {
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try {
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2016-01-20 13:47:23 +03:00
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if (!$this->isAdmin) {
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$tag = $this->tagManager->getTagsByIds($tagId);
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$tag = current($tag);
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if (!$tag->isUserVisible()) {
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throw new PreconditionFailed('Tag with id ' . $tagId . ' does not exist, cannot assign');
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}
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if (!$tag->isUserAssignable()) {
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throw new Forbidden('No permission to assign tag ' . $tag->getId());
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}
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}
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2015-11-27 14:54:31 +03:00
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$this->tagMapper->assignTags($this->objectId, $this->objectType, $tagId);
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} catch (TagNotFoundException $e) {
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2015-12-03 13:26:16 +03:00
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throw new PreconditionFailed('Tag with id ' . $tagId . ' does not exist, cannot assign');
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2015-11-27 14:54:31 +03:00
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}
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}
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function createDirectory($name) {
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throw new Forbidden('Permission denied to create collections');
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}
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function getChild($tagId) {
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try {
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2015-12-04 19:30:22 +03:00
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if ($this->tagMapper->haveTag([$this->objectId], $this->objectType, $tagId, true)) {
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$tag = $this->tagManager->getTagsByIds([$tagId]);
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2016-01-20 13:47:23 +03:00
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$tag = current($tag);
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if ($this->isAdmin || $tag->isUserVisible()) {
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return $this->makeNode($tag);
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}
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2015-11-27 14:54:31 +03:00
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}
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throw new NotFound('Tag with id ' . $tagId . ' not present for object ' . $this->objectId);
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} catch (\InvalidArgumentException $e) {
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throw new BadRequest('Invalid tag id', 0, $e);
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} catch (TagNotFoundException $e) {
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throw new NotFound('Tag with id ' . $tagId . ' not found', 0, $e);
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}
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}
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function getChildren() {
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2015-12-04 19:30:22 +03:00
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$tagIds = current($this->tagMapper->getTagIdsForObjects([$this->objectId], $this->objectType));
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2015-11-27 14:54:31 +03:00
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if (empty($tagIds)) {
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return [];
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}
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2015-12-04 19:30:22 +03:00
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$tags = $this->tagManager->getTagsByIds($tagIds);
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2016-01-20 13:47:23 +03:00
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if (!$this->isAdmin) {
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// filter out non-visible tags
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$tags = array_filter($tags, function($tag) {
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return $tag->isUserVisible();
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});
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}
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2015-12-03 13:26:16 +03:00
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return array_values(array_map(function($tag) {
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2015-11-27 14:54:31 +03:00
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return $this->makeNode($tag);
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2015-12-03 13:26:16 +03:00
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}, $tags));
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2015-11-27 14:54:31 +03:00
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}
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function childExists($tagId) {
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try {
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2016-01-20 13:47:23 +03:00
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$result = ($this->tagMapper->haveTag([$this->objectId], $this->objectType, $tagId, true));
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if ($this->isAdmin || !$result) {
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return $result;
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}
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// verify if user is allowed to see this tag
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$tag = $this->tagManager->getTagsByIds($tagId);
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$tag = current($tag);
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if (!$tag->isUserVisible()) {
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return false;
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}
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return true;
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2015-11-27 14:54:31 +03:00
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} catch (\InvalidArgumentException $e) {
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throw new BadRequest('Invalid tag id', 0, $e);
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} catch (TagNotFoundException $e) {
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2015-12-03 13:26:16 +03:00
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return false;
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2015-11-27 14:54:31 +03:00
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}
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}
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function delete() {
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throw new Forbidden('Permission denied to delete this collection');
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}
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function getName() {
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return $this->objectId;
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}
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function setName($name) {
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throw new Forbidden('Permission denied to rename this collection');
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}
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/**
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* Returns the last modification time, as a unix timestamp
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*
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* @return int
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*/
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function getLastModified() {
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return null;
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}
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/**
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2015-12-04 19:30:22 +03:00
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* Create a sabre node for the mapping of the
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* given system tag to the collection's object
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2015-11-27 14:54:31 +03:00
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*
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* @param ISystemTag $tag
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*
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* @return SystemTagNode
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*/
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private function makeNode(ISystemTag $tag) {
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return new SystemTagMappingNode(
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$tag,
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$this->objectId,
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$this->objectType,
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2016-01-20 13:47:23 +03:00
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$this->isAdmin,
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2015-11-27 14:54:31 +03:00
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$this->tagManager,
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$this->tagMapper
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);
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}
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}
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