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1 | <?php |
2 | |
3 | /** |
4 | * Trait containing methods for building shared listeners. |
5 | * |
6 | * PHP version 8 |
7 | * |
8 | * Copyright (C) Villanova University 2022. |
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 Search |
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 Main Site |
28 | */ |
29 | |
30 | namespace VuFind\Search\Factory; |
31 | |
32 | use Laminas\Config\Config; |
33 | use VuFind\Search\Base\HideFacetValueListener; |
34 | use VuFindSearch\Backend\BackendInterface; |
35 | |
36 | /** |
37 | * Trait containing methods for building shared listeners. |
38 | * |
39 | * @category VuFind |
40 | * @package Search |
41 | * @author Demian Katz <demian.katz@villanova.edu> |
42 | * @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License |
43 | * @link https://vufind.org Main Site |
44 | */ |
45 | trait SharedListenersTrait |
46 | { |
47 | /** |
48 | * Get a hide facet value listener for the backend |
49 | * |
50 | * @param BackendInterface $backend Search backend |
51 | * @param Config $facet Configuration of facets |
52 | * |
53 | * @return mixed null|HideFacetValueListener |
54 | */ |
55 | protected function getHideFacetValueListener( |
56 | BackendInterface $backend, |
57 | Config $facet |
58 | ) { |
59 | $hideFacetValue = isset($facet->HideFacetValue) |
60 | ? $facet->HideFacetValue->toArray() : []; |
61 | $showFacetValue = isset($facet->ShowFacetValue) |
62 | ? $facet->ShowFacetValue->toArray() : []; |
63 | if (empty($hideFacetValue) && empty($showFacetValue)) { |
64 | return null; |
65 | } |
66 | return new HideFacetValueListener( |
67 | $backend, |
68 | $hideFacetValue, |
69 | $showFacetValue |
70 | ); |
71 | } |
72 | } |