MediaWiki REL1_33
RevDelRevisionList.php
Go to the documentation of this file.
1<?php
24
37
38 public function getType() {
39 return 'revision';
40 }
41
42 public static function getRelationType() {
43 return 'rev_id';
44 }
45
46 public static function getRestriction() {
47 return 'deleterevision';
48 }
49
50 public static function getRevdelConstant() {
52 }
53
54 public static function suggestTarget( $target, array $ids ) {
56 return $rev ? $rev->getTitle() : $target;
57 }
58
63 public function doQuery( $db ) {
64 $ids = array_map( 'intval', $this->ids );
65 $revQuery = Revision::getQueryInfo( [ 'page', 'user' ] );
66 $queryInfo = [
67 'tables' => $revQuery['tables'],
68 'fields' => $revQuery['fields'],
69 'conds' => [
70 'rev_page' => $this->title->getArticleID(),
71 'rev_id' => $ids,
72 ],
73 'options' => [
74 'ORDER BY' => 'rev_id DESC',
75 'USE INDEX' => [ 'revision' => 'PRIMARY' ] // workaround for MySQL bug (T104313)
76 ],
77 'join_conds' => $revQuery['joins'],
78 ];
80 $queryInfo['tables'],
81 $queryInfo['fields'],
82 $queryInfo['conds'],
83 $queryInfo['join_conds'],
84 $queryInfo['options'],
85 ''
86 );
87
88 $live = $db->select(
89 $queryInfo['tables'],
90 $queryInfo['fields'],
91 $queryInfo['conds'],
92 __METHOD__,
93 $queryInfo['options'],
94 $queryInfo['join_conds']
95 );
96 if ( $live->numRows() >= count( $ids ) ) {
97 // All requested revisions are live, keeps things simple!
98 return $live;
99 }
100
102 $archiveQueryInfo = [
103 'tables' => $arQuery['tables'],
104 'fields' => $arQuery['fields'],
105 'conds' => [
106 'ar_rev_id' => $ids,
107 ],
108 'options' => [ 'ORDER BY' => 'ar_rev_id DESC' ],
109 'join_conds' => $arQuery['joins'],
110 ];
111
113 $archiveQueryInfo['tables'],
114 $archiveQueryInfo['fields'],
115 $archiveQueryInfo['conds'],
116 $archiveQueryInfo['join_conds'],
117 $archiveQueryInfo['options'],
118 ''
119 );
120
121 // Check if any requested revisions are available fully deleted.
122 $archived = $db->select(
123 $archiveQueryInfo['tables'],
124 $archiveQueryInfo['fields'],
125 $archiveQueryInfo['conds'],
126 __METHOD__,
127 $archiveQueryInfo['options'],
128 $archiveQueryInfo['join_conds']
129 );
130
131 if ( $archived->numRows() == 0 ) {
132 return $live;
133 } elseif ( $live->numRows() == 0 ) {
134 return $archived;
135 } else {
136 // Combine the two! Whee
137 $rows = [];
138 foreach ( $live as $row ) {
139 $rows[$row->rev_id] = $row;
140 }
141 foreach ( $archived as $row ) {
142 $rows[$row->ar_rev_id] = $row;
143 }
144 krsort( $rows );
145 return new FakeResultWrapper( array_values( $rows ) );
146 }
147 }
148
149 public function newItem( $row ) {
150 if ( isset( $row->rev_id ) ) {
151 return new RevDelRevisionItem( $this, $row );
152 } elseif ( isset( $row->ar_rev_id ) ) {
153 return new RevDelArchivedRevisionItem( $this, $row );
154 } else {
155 // This shouldn't happen. :)
156 throw new MWException( 'Invalid row type in RevDelRevisionList' );
157 }
158 }
159
160 public function getCurrent() {
161 if ( is_null( $this->currentRevId ) ) {
162 $dbw = wfGetDB( DB_MASTER );
163 $this->currentRevId = $dbw->selectField(
164 'page', 'page_latest', $this->title->pageCond(), __METHOD__ );
165 }
166 return $this->currentRevId;
167 }
168
169 public function getSuppressBit() {
171 }
172
173 public function doPreCommitUpdates() {
174 $this->title->invalidateCache();
175 return Status::newGood();
176 }
177
178 public function doPostCommitUpdates( array $visibilityChangeMap ) {
179 $this->title->purgeSquid();
180 // Extensions that require referencing previous revisions may need this
181 Hooks::run( 'ArticleRevisionVisibilitySet', [ $this->title, $this->ids, $visibilityChangeMap ] );
182 return Status::newGood();
183 }
184}
Apache License January AND DISTRIBUTION Definitions License shall mean the terms and conditions for use
wfGetDB( $db, $groups=[], $wiki=false)
Get a Database object.
static modifyDisplayQuery(&$tables, &$fields, &$conds, &$join_conds, &$options, $filter_tag='')
Applies all tags-related changes to a query.
MediaWiki exception.
Item class for a archive table row by ar_rev_id – actually used via RevDelRevisionList.
Abstract base class for a list of deletable items.
Item class for a live revision table row.
List for revision table items.
getSuppressBit()
Get the integer value of the flag used for suppression.
doPostCommitUpdates(array $visibilityChangeMap)
A hook for setVisibility(): do any necessary updates post-commit.
static getRevdelConstant()
Get the revision deletion constant for this list type Override this function.
static getRelationType()
Get the DB field name associated with the ID list.
static suggestTarget( $target, array $ids)
Suggest a target for the revision deletion Optionally override this function.
static getRestriction()
Get the user right required for this list type Override this function.
doPreCommitUpdates()
A hook for setVisibility(): do batch updates pre-commit.
getType()
Get the internal type name of this list.
newItem( $row)
Create an item object from a DB result row.
static getArchiveQueryInfo()
Return the tables, fields, and join conditions to be selected to create a new archived revision objec...
Definition Revision.php:525
static getQueryInfo( $options=[])
Return the tables, fields, and join conditions to be selected to create a new revision object.
Definition Revision.php:511
const DELETED_TEXT
Definition Revision.php:46
const DELETED_RESTRICTED
Definition Revision.php:49
static newFromId( $id, $flags=0)
Load a page revision from a given revision ID number.
Definition Revision.php:118
Overloads the relevant methods of the real ResultsWrapper so it doesn't go anywhere near an actual da...
This document is intended to provide useful advice for parties seeking to redistribute MediaWiki to end users It s targeted particularly at maintainers for Linux since it s been observed that distribution packages of MediaWiki often break We ve consistently had to recommend that users seeking support use official tarballs instead of their distribution s and this often solves whatever problem the user is having It would be nice if this could such as
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Definition hooks.txt:2818
presenting them properly to the user as errors is done by the caller return true use this to change the list i e etc $rev
Definition hooks.txt:1779
injection txt This is an overview of how MediaWiki makes use of dependency injection The design described here grew from the discussion of RFC T384 The term dependency this means that anything an object needs to operate should be injected from the the object itself should only know narrow no concrete implementation of the logic it relies on The requirement to inject everything typically results in an architecture that based on two main types of and essentially stateless service objects that use other service objects to operate on the value objects As of the beginning MediaWiki is only starting to use the DI approach Much of the code still relies on global state or direct resulting in a highly cyclical dependency which acts as the top level factory for services in MediaWiki which can be used to gain access to default instances of various services MediaWikiServices however also allows new services to be defined and default services to be redefined Services are defined or redefined by providing a callback the instantiator that will return a new instance of the service When it will create an instance of MediaWikiServices and populate it with the services defined in the files listed by thereby bootstrapping the DI framework Per $wgServiceWiringFiles lists includes ServiceWiring php
Definition injection.txt:37
Basic database interface for live and lazy-loaded relation database handles.
Definition IDatabase.php:38
The wiki should then use memcached to cache various data To use multiple just add more items to the array To increase the weight of a make its entry a array("192.168.0.1:11211", 2))
title
const DB_MASTER
Definition defines.php:26