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1<?php
2
3/**
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; under version 2
7 * of the License (non-upgradable).
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
17 *
18 * Copyright (c) 2021 (original work) Open Assessment Technologies SA;
19 */
20
21declare(strict_types=1);
22
23namespace oat\taoTestTaker\actions;
24
25use oat\oatbox\event\EventManager;
26use oat\taoTestTaker\models\events\TestTakerUpdatedEvent;
27use tao_actions_GenerisTree;
28use tao_helpers_form_GenerisTreeForm;
29
30/**
31 * Class TestTakerGenerisTree
32 * @author Ilya Yarkavets <ilya.yarkavets@1pt.com>
33 * @package oat\taoTestTaker\actions
34 */
35class TestTakerGenerisTree extends tao_actions_GenerisTree
36{
37    /**
38     * @see tao_actions_GenerisTree::setValues()
39     */
40    public function setValues()
41    {
42        $parentResult = parent::setValues();
43
44        $this->getEventManager()->trigger(new TestTakerUpdatedEvent($this->getRequestParameter('resourceUri'), []));
45
46        return $parentResult;
47    }
48
49    /**
50     * @see tao_actions_GenerisTree::setReverseValues()
51     */
52    public function setReverseValues()
53    {
54        if (!$this->isXmlHttpRequest()) {
55            throw new common_exception_IsAjaxAction(__FUNCTION__);
56        }
57
58        $values = tao_helpers_form_GenerisTreeForm::getSelectedInstancesFromPost();
59
60        $resource = $this->getResource($this->getRequestParameter('resourceUri'));
61        $property = $this->getProperty($this->getRequestParameter('propertyUri'));
62
63        $ttClass = $this->getClass('http://www.tao.lu/Ontologies/TAOSubject.rdf#Subject');
64        $instances = $ttClass->searchInstances([
65            $property->getUri() => $resource
66        ], ['recursive' => true, 'like' => false]);
67
68        $currentValues = array_merge([], array_keys($instances));
69
70        $toAdd = array_diff($values, $currentValues);
71        $toRemove = array_diff($currentValues, $values);
72
73        $success = true;
74        foreach ($toAdd as $uri) {
75            $subject = $this->getResource($uri);
76            $success = $success && $subject->setPropertyValue($property, $resource);
77        }
78
79        foreach ($toRemove as $uri) {
80            $subject = $this->getResource($uri);
81            $success = $success && $subject->removePropertyValue($property, $resource);
82        }
83
84        $touchedValues = array_merge_recursive($toRemove, $values);
85        foreach ($touchedValues as $uri) {
86            $this->getEventManager()->trigger(new TestTakerUpdatedEvent($uri, []));
87        }
88
89        return $this->returnJson(['saved'  => $success]);
90    }
91
92    /**
93     * @return EventManager
94     */
95    private function getEventManager(): EventManager
96    {
97        return $this->getServiceLocator()->get(EventManager::SERVICE_ID);
98    }
99}