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1 | <?php |
2 | /** |
3 | * Service for looking up page revisions. |
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 | */ |
22 | |
23 | namespace MediaWiki\Revision; |
24 | |
25 | use IDBAccessObject; |
26 | use MediaWiki\Linker\LinkTarget; |
27 | use MediaWiki\Page\PageIdentity; |
28 | |
29 | /** |
30 | * Service for looking up page revisions. |
31 | * |
32 | * @note This was written to act as a drop-in replacement for the corresponding |
33 | * static methods in the old Revision class (which was later removed in 1.37). |
34 | * |
35 | * @since 1.31 |
36 | * @since 1.32 Renamed from MediaWiki\Storage\RevisionLookup |
37 | */ |
38 | interface RevisionLookup { |
39 | |
40 | /** |
41 | * Load a page revision from a given revision ID number. |
42 | * Returns null if no such revision can be found. |
43 | * |
44 | * MCR migration note: this replaced Revision::newFromId |
45 | * |
46 | * $flags include: |
47 | * |
48 | * @param int $id |
49 | * @param int $flags bit field, see IDBAccessObject::READ_XXX |
50 | * @param PageIdentity|null $page The page the revision belongs to. |
51 | * Providing the page may improve performance. |
52 | * |
53 | * @return RevisionRecord|null |
54 | */ |
55 | public function getRevisionById( $id, $flags = 0, PageIdentity $page = null ); |
56 | |
57 | /** |
58 | * Load either the current, or a specified, revision |
59 | * that's attached to a given link target. If not attached |
60 | * to that link target, will return null. |
61 | * |
62 | * MCR migration note: this replaced Revision::newFromTitle |
63 | * |
64 | * @param LinkTarget|PageIdentity $page Calling with LinkTarget is deprecated since 1.36 |
65 | * @param int $revId (optional) |
66 | * @param int $flags bit field, see IDBAccessObject::READ_XXX |
67 | * @return RevisionRecord|null |
68 | */ |
69 | public function getRevisionByTitle( $page, $revId = 0, $flags = 0 ); |
70 | |
71 | /** |
72 | * Load either the current, or a specified, revision |
73 | * that's attached to a given page ID. |
74 | * Returns null if no such revision can be found. |
75 | * |
76 | * MCR migration note: this replaced Revision::newFromPageId |
77 | * |
78 | * @param int $pageId |
79 | * @param int $revId (optional) |
80 | * @param int $flags bit field, see IDBAccessObject::READ_XXX |
81 | * @return RevisionRecord|null |
82 | */ |
83 | public function getRevisionByPageId( $pageId, $revId = 0, $flags = 0 ); |
84 | |
85 | /** |
86 | * Load the revision for the given title with the given timestamp. |
87 | * WARNING: Timestamps may in some circumstances not be unique, |
88 | * so this isn't the best key to use. |
89 | * |
90 | * MCR migration note: this replaced Revision::loadFromTimestamp |
91 | * |
92 | * @param LinkTarget|PageIdentity $page Calling with LinkTarget is deprecated since 1.36 |
93 | * @param string $timestamp |
94 | * @param int $flags Bitfield (optional) include: |
95 | * IDBAccessObject::READ_LATEST: Select the data from the primary DB |
96 | * IDBAccessObject::READ_LOCKING: Select & lock the data from the primary DB |
97 | * Default: IDBAccessObject::READ_NORMAL |
98 | * @return RevisionRecord|null |
99 | */ |
100 | public function getRevisionByTimestamp( |
101 | $page, |
102 | string $timestamp, |
103 | int $flags = IDBAccessObject::READ_NORMAL |
104 | ): ?RevisionRecord; |
105 | |
106 | /** |
107 | * Get previous revision for this title |
108 | * |
109 | * MCR migration note: this replaced Revision::getPrevious |
110 | * |
111 | * @param RevisionRecord $rev |
112 | * @param int $flags (optional) $flags include: |
113 | * IDBAccessObject::READ_LATEST: Select the data from the primary DB |
114 | * |
115 | * @return RevisionRecord|null |
116 | */ |
117 | public function getPreviousRevision( RevisionRecord $rev, $flags = 0 ); |
118 | |
119 | /** |
120 | * Get next revision for this title |
121 | * |
122 | * MCR migration note: this replaced Revision::getNext |
123 | * |
124 | * @param RevisionRecord $rev |
125 | * @param int $flags (optional) $flags include: |
126 | * IDBAccessObject::READ_LATEST: Select the data from the primary DB |
127 | * |
128 | * @return RevisionRecord|null |
129 | */ |
130 | public function getNextRevision( RevisionRecord $rev, $flags = 0 ); |
131 | |
132 | /** |
133 | * Get rev_timestamp from rev_id, without loading the rest of the row. |
134 | * |
135 | * MCR migration note: this replaced Revision::getTimestampFromId |
136 | * |
137 | * @param int $id |
138 | * @param int $flags |
139 | * @return string|false False if not found |
140 | * @since 1.34 (present earlier in RevisionStore) |
141 | */ |
142 | public function getTimestampFromId( $id, $flags = 0 ); |
143 | |
144 | /** |
145 | * Load a revision based on a known page ID and current revision ID from the DB |
146 | * |
147 | * This method allows for the use of caching, though accessing anything that normally |
148 | * requires permission checks (aside from the text) will trigger a small DB lookup. |
149 | * |
150 | * MCR migration note: this replaced Revision::newKnownCurrent |
151 | * |
152 | * @param PageIdentity $page the associated page |
153 | * @param int $revId current revision of this page |
154 | * |
155 | * @return RevisionRecord|false Returns false if missing |
156 | */ |
157 | public function getKnownCurrentRevision( PageIdentity $page, $revId = 0 ); |
158 | |
159 | /** |
160 | * Get the first revision of the page. |
161 | * |
162 | * @since 1.35 |
163 | * @param LinkTarget|PageIdentity $page Calling with LinkTarget is deprecated since 1.36 |
164 | * @param int $flags bit field, see IDBAccessObject::READ_* constants. |
165 | * @return RevisionRecord|null |
166 | */ |
167 | public function getFirstRevision( |
168 | $page, |
169 | int $flags = IDBAccessObject::READ_NORMAL |
170 | ): ?RevisionRecord; |
171 | |
172 | } |