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1 | <?php |
2 | |
3 | /** |
4 | * Relais view helper |
5 | * |
6 | * PHP version 8 |
7 | * |
8 | * Copyright (C) Villanova University 2018. |
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 View_Helpers |
25 | * @author Demian Katz <demian.katz@villanova.edu> |
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 | use Laminas\Config\Config; |
33 | |
34 | /** |
35 | * Relais view helper |
36 | * |
37 | * @category VuFind |
38 | * @package View_Helpers |
39 | * @author Demian Katz <demian.katz@villanova.edu> |
40 | * @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License |
41 | * @link https://vufind.org/wiki/development Wiki |
42 | */ |
43 | class Relais extends \Laminas\View\Helper\AbstractHelper |
44 | { |
45 | /** |
46 | * Relais configuration (or null if none found) |
47 | * |
48 | * @var Config |
49 | */ |
50 | protected $config; |
51 | |
52 | /** |
53 | * Login URL |
54 | * |
55 | * @var string |
56 | */ |
57 | protected $loginUrl; |
58 | |
59 | /** |
60 | * Constructor. |
61 | * |
62 | * @param Config $config Relais configuration (or null if none found) |
63 | * @param string $loginUrl Login base URL |
64 | */ |
65 | public function __construct($config, $loginUrl) |
66 | { |
67 | $this->config = $config; |
68 | $this->loginUrl = $loginUrl; |
69 | } |
70 | |
71 | /** |
72 | * Create a Relais search link from a record driver. |
73 | * |
74 | * @param object $driver Record driver |
75 | * |
76 | * @return string |
77 | */ |
78 | public function getSearchLink($driver) |
79 | { |
80 | // Get data elements: |
81 | $isbn = $driver->tryMethod('getCleanISBN'); |
82 | $title = $driver->tryMethod('getShortTitle'); |
83 | if (empty($title)) { |
84 | $title = $driver->tryMethod('getTitle'); |
85 | } |
86 | $mainAuthor = $driver->tryMethod('getPrimaryAuthor'); |
87 | |
88 | // Assemble and return URL: |
89 | $separator = strstr($this->loginUrl, '?') === false ? '?' : '&'; |
90 | $url = $this->loginUrl . $separator . 'query=' |
91 | . ($isbn ? 'isbn%3D' . rawurlencode($isbn) : 'ti%3D' |
92 | . rawurlencode($title)); |
93 | if ($mainAuthor) { |
94 | $url .= '%20and%20au%3D' . rawurlencode($mainAuthor); |
95 | } |
96 | return $url; |
97 | } |
98 | |
99 | /** |
100 | * Render a button if Relais is active. |
101 | * |
102 | * @param object $driver Record driver |
103 | * |
104 | * @return string |
105 | */ |
106 | public function renderButtonIfActive($driver = null) |
107 | { |
108 | // Case 1: API enabled: |
109 | if ($this->config->apikey ?? false) { |
110 | return $this->getView()->render('relais/button.phtml'); |
111 | } |
112 | // Case 2: Search links enabled: |
113 | if ($this->config->loginUrl ?? false) { |
114 | return '<a href="' . htmlspecialchars($this->getSearchLink($driver)) |
115 | . '" target="new">' . $this->getView()->transEsc('relais_search') |
116 | . '</a>'; |
117 | } |
118 | // Case 3: Nothing enabled: |
119 | return ''; |
120 | } |
121 | } |