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1<?php
2/**
3 * Implements Special:Uncategorizedcategories
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18 * http://www.gnu.org/copyleft/gpl.html
19 *
20 * @file
21 * @ingroup SpecialPage
22 */
23
24namespace MediaWiki\Specials;
25
26use MediaWiki\Cache\LinkBatchFactory;
27use MediaWiki\Languages\LanguageConverterFactory;
28use MediaWiki\Title\NamespaceInfo;
29use MediaWiki\Title\Title;
30use Skin;
31use stdClass;
32use Wikimedia\Rdbms\IConnectionProvider;
33
34/**
35 * A special page that lists uncategorized categories
36 *
37 * @ingroup SpecialPage
38 */
39class SpecialUncategorizedCategories extends SpecialUncategorizedPages {
40    /**
41     * Holds a list of categories, which shouldn't be listed on this special page,
42     * even if it is uncategorized.
43     * @var array
44     */
45    private $exceptionList = null;
46
47    /**
48     * @param NamespaceInfo $namespaceInfo
49     * @param IConnectionProvider $dbProvider
50     * @param LinkBatchFactory $linkBatchFactory
51     * @param LanguageConverterFactory $languageConverterFactory
52     */
53    public function __construct(
54        NamespaceInfo $namespaceInfo,
55        IConnectionProvider $dbProvider,
56        LinkBatchFactory $linkBatchFactory,
57        LanguageConverterFactory $languageConverterFactory
58    ) {
59        parent::__construct(
60            $namespaceInfo,
61            $dbProvider,
62            $linkBatchFactory,
63            $languageConverterFactory
64        );
65        $this->mName = 'Uncategorizedcategories';
66        $this->requestedNamespace = NS_CATEGORY;
67    }
68
69    /**
70     * Returns an array of category titles (usually without the namespace), which
71     * shouldn't be listed on this page, even if they're uncategorized.
72     *
73     * @return array
74     */
75    private function getExceptionList() {
76        if ( $this->exceptionList === null ) {
77            $this->exceptionList = [];
78            $exList = $this->msg( 'uncategorized-categories-exceptionlist' )
79                ->inContentLanguage()->plain();
80            $proposedTitles = explode( "\n", $exList );
81            foreach ( $proposedTitles as $titleStr ) {
82                if ( !str_starts_with( $titleStr, '*' ) ) {
83                    continue;
84                }
85                $titleStr = preg_replace( "/^\\*\\s*/", '', $titleStr );
86                $title = Title::newFromText( $titleStr, NS_CATEGORY );
87                if ( $title && $title->getNamespace() !== NS_CATEGORY ) {
88                    $title = Title::makeTitleSafe( NS_CATEGORY, $titleStr );
89                }
90                if ( $title ) {
91                    $this->exceptionList[] = $title->getDBkey();
92                }
93            }
94        }
95        return $this->exceptionList;
96    }
97
98    public function getQueryInfo() {
99        $query = parent::getQueryInfo();
100        $exceptionList = $this->getExceptionList();
101        if ( $exceptionList ) {
102            $dbr = $this->getDatabaseProvider()->getReplicaDatabase();
103            $query['conds'][] = $dbr->expr( 'page_title', '!=', $exceptionList );
104        }
105
106        return $query;
107    }
108
109    /**
110     * Formats the result
111     * @param Skin $skin The current skin
112     * @param stdClass $result The query result
113     * @return string The category link
114     */
115    public function formatResult( $skin, $result ) {
116        $title = Title::makeTitle( NS_CATEGORY, $result->title );
117        $text = $title->getText();
118
119        return $this->getLinkRenderer()->makeKnownLink( $title, $text );
120    }
121}
122
123/**
124 * Retain the old class name for backwards compatibility.
125 * @deprecated since 1.41
126 */
127class_alias( SpecialUncategorizedCategories::class, 'SpecialUncategorizedCategories' );