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1 | <?php |
2 | |
3 | /** |
4 | * Metadata view helper |
5 | * |
6 | * PHP version 8 |
7 | * |
8 | * Copyright (C) University of Tübingen 2019. |
9 | * |
10 | * This program is free software; you can redistribute it and/or modify |
11 | * it under the terms of the GNU General Public License version 2, |
12 | * as published by the Free Software Foundation. |
13 | * |
14 | * This program is distributed in the hope that it will be useful, |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
17 | * GNU General Public License for more details. |
18 | * |
19 | * You should have received a copy of the GNU General Public License |
20 | * along with this program; if not, write to the Free Software |
21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
22 | * |
23 | * @category VuFind |
24 | * @package Metadata_Vocabularies |
25 | * @author Mario Trojan <mario.trojan@uni-tuebingen.de> |
26 | * @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License |
27 | * @link https://vufind.org/wiki/development Wiki |
28 | */ |
29 | |
30 | namespace VuFind\View\Helper\Root; |
31 | |
32 | /** |
33 | * Metadata view helper |
34 | * |
35 | * @category VuFind |
36 | * @package Metadata_Vocabularies |
37 | * @author Mario Trojan <mario.trojan@uni-tuebingen.de> |
38 | * @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License |
39 | * @link https://vufind.org/wiki/development Wiki |
40 | */ |
41 | class Metadata extends \Laminas\View\Helper\AbstractHelper |
42 | { |
43 | /** |
44 | * Metadata configuration entries |
45 | * |
46 | * @var \Laminas\Config\Config |
47 | */ |
48 | protected $config; |
49 | |
50 | /** |
51 | * Laminas meta helper, used to embed html tags in the generated page |
52 | * |
53 | * @var \Laminas\View\Helper\HeadMeta |
54 | */ |
55 | protected $metaHelper; |
56 | |
57 | /** |
58 | * Plugin Manager for vocabularies |
59 | * |
60 | * @var \VuFind\MetadataVocabulary\PluginManager |
61 | */ |
62 | protected $pluginManager; |
63 | |
64 | /** |
65 | * Constructor |
66 | * |
67 | * @param \VuFind\MetadataVocabulary\PluginManager $pm Plugin manager |
68 | * @param \Laminas\Config\Config $config Configuration |
69 | * @param \Laminas\View\Helper\HeadMeta $metaHelper Head meta helper |
70 | */ |
71 | public function __construct( |
72 | \VuFind\MetadataVocabulary\PluginManager $pm, |
73 | \Laminas\Config\Config $config, |
74 | \Laminas\View\Helper\HeadMeta $metaHelper |
75 | ) { |
76 | $this->pluginManager = $pm; |
77 | $this->config = $config; |
78 | $this->metaHelper = $metaHelper; |
79 | } |
80 | |
81 | /** |
82 | * Get all active vocabularies for the current record. |
83 | * |
84 | * @param \VuFind\RecordDriver\AbstractBase $driver Record driver |
85 | * |
86 | * @return array |
87 | */ |
88 | protected function getVocabularies(\VuFind\RecordDriver\AbstractBase $driver) |
89 | { |
90 | $recordDriverConfigs = isset($this->config->Vocabularies) |
91 | ? $this->config->Vocabularies->toArray() : []; |
92 | $retVal = []; |
93 | foreach ($recordDriverConfigs as $className => $vocabs) { |
94 | if ($driver instanceof $className) { |
95 | $retVal = array_merge($retVal, $vocabs); |
96 | } |
97 | } |
98 | return array_unique($retVal); |
99 | } |
100 | |
101 | /** |
102 | * Generate all metatags for RecordDriver and add to page |
103 | * |
104 | * Decide which Plugins to load for the given RecordDriver |
105 | * dependant on configuration. (only by class name, |
106 | * namespace will not be considered) |
107 | * |
108 | * @param \VuFind\RecordDriver\AbstractBase $driver Record driver |
109 | * |
110 | * @return void |
111 | */ |
112 | public function generateMetatags(\VuFind\RecordDriver\AbstractBase $driver) |
113 | { |
114 | foreach ($this->getVocabularies($driver) as $metatagType) { |
115 | $vocabulary = $this->pluginManager->get($metatagType); |
116 | $mappedFields = $vocabulary->getMappedData($driver); |
117 | foreach ($mappedFields as $field => $values) { |
118 | foreach ($values as $value) { |
119 | $this->metaHelper->appendName($field, $value); |
120 | } |
121 | } |
122 | } |
123 | } |
124 | } |