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1 | <?php |
2 | /** |
3 | * This program is free software; you can redistribute it and/or modify |
4 | * it under the terms of the GNU General Public License as published by |
5 | * the Free Software Foundation; either version 2 of the License, or |
6 | * (at your option) any later version. |
7 | * |
8 | * This program is distributed in the hope that it will be useful, |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
11 | * GNU General Public License for more details. |
12 | * |
13 | * You should have received a copy of the GNU General Public License along |
14 | * with this program; if not, write to the Free Software Foundation, Inc., |
15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
16 | * http://www.gnu.org/copyleft/gpl.html |
17 | * |
18 | * @file |
19 | */ |
20 | |
21 | namespace MediaWiki\Page; |
22 | |
23 | use MediaWiki\Utils\MWTimestamp; |
24 | use stdClass; |
25 | use Wikimedia\Assert\Assert; |
26 | |
27 | /** |
28 | * Immutable data record representing an editable page on a wiki. |
29 | * |
30 | * Corresponds to a row in the page table. |
31 | * |
32 | * @see https://www.mediawiki.org/wiki/Manual:Modeling_pages |
33 | * |
34 | * @since 1.36 |
35 | */ |
36 | class PageStoreRecord extends PageIdentityValue implements ExistingPageRecord { |
37 | |
38 | /** |
39 | * Fields that must be present in the row object passed to the constructor. |
40 | * Note that page_lang is optional, so it is not included here. |
41 | * |
42 | * @since 1.37 |
43 | */ |
44 | public const REQUIRED_FIELDS = [ |
45 | 'page_id', |
46 | 'page_namespace', |
47 | 'page_title', |
48 | 'page_is_redirect', |
49 | 'page_is_new', |
50 | 'page_latest', |
51 | 'page_touched', |
52 | ]; |
53 | |
54 | /** |
55 | * Fields from the page table. |
56 | * |
57 | * @var stdClass |
58 | */ |
59 | private $row; |
60 | |
61 | /** |
62 | * The $row object must provide all fields listed in PageStoreRecord::REQUIRED_FIELDS. |
63 | * |
64 | * @param stdClass $row A row from the page table |
65 | * @param string|false $wikiId The Id of the wiki this page belongs to, |
66 | * or self::LOCAL for the local wiki. |
67 | */ |
68 | public function __construct( stdClass $row, $wikiId ) { |
69 | foreach ( self::REQUIRED_FIELDS as $field ) { |
70 | Assert::parameter( isset( $row->$field ), '$row->' . $field, 'is required' ); |
71 | } |
72 | |
73 | Assert::parameter( $row->page_id > 0, '$pageId', 'must be greater than zero (page must exist)' ); |
74 | |
75 | parent::__construct( $row->page_id, $row->page_namespace, $row->page_title, $wikiId ); |
76 | |
77 | $this->row = $row; |
78 | } |
79 | |
80 | /** |
81 | * False if the page has had more than one edit. |
82 | * |
83 | * @return bool |
84 | */ |
85 | public function isNew(): bool { |
86 | return (bool)$this->row->page_is_new; |
87 | } |
88 | |
89 | /** |
90 | * True if the page is a redirect. |
91 | * |
92 | * @return bool |
93 | */ |
94 | public function isRedirect(): bool { |
95 | return (bool)$this->row->page_is_redirect; |
96 | } |
97 | |
98 | /** |
99 | * The ID of the page'S latest revision. |
100 | * |
101 | * @param string|false $wikiId |
102 | * |
103 | * @return int |
104 | */ |
105 | public function getLatest( $wikiId = self::LOCAL ): int { |
106 | $this->assertWiki( $wikiId ); |
107 | return (int)$this->row->page_latest; |
108 | } |
109 | |
110 | /** |
111 | * Timestamp at which the page was last rerendered. |
112 | * |
113 | * @return string |
114 | */ |
115 | public function getTouched(): string { |
116 | return MWTimestamp::convert( TS_MW, $this->row->page_touched ); |
117 | } |
118 | |
119 | /** |
120 | * Language in which the page is written. |
121 | * |
122 | * @return ?string |
123 | */ |
124 | public function getLanguage(): ?string { |
125 | return $this->getField( 'page_lang' ); |
126 | } |
127 | |
128 | /** |
129 | * Return the raw value for the given field as returned by the database query. |
130 | * |
131 | * Numeric values may be encoded as strings. |
132 | * Boolean values may be represented as integers (or numeric strings). |
133 | * Timestamps will use the database's native format. |
134 | * |
135 | * @internal |
136 | * |
137 | * @param string $field |
138 | * |
139 | * @return string|int|bool|null |
140 | */ |
141 | public function getField( string $field ) { |
142 | // Field may be missing entirely. |
143 | return $this->row->$field ?? null; |
144 | } |
145 | |
146 | } |