1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
|
<?php
/**
* @todo document
* @file
* @ingroup Maintenance
*/
function refreshLinks( $start, $newOnly = false, $maxLag = false, $end = 0, $redirectsOnly = false, $oldRedirectsOnly = false ) {
global $wgUser, $wgParser, $wgUseTidy;
$reportingInterval = 100;
$fname = 'refreshLinks';
$dbr = wfGetDB( DB_SLAVE );
$start = intval( $start );
# Don't generate TeX PNGs (lack of a sensible current directory causes errors anyway)
$wgUser->setOption('math', MW_MATH_SOURCE);
# Don't generate extension images (e.g. Timeline)
if( method_exists( $wgParser, "clearTagHooks" ) ) {
$wgParser->clearTagHooks();
}
# Don't use HTML tidy
$wgUseTidy = false;
$what = $redirectsOnly ? "redirects" : "links";
if( $oldRedirectsOnly ) {
# This entire code path is cut-and-pasted from below. Hurrah.
$res = $dbr->query(
"SELECT page_id ".
"FROM page ".
"LEFT JOIN redirect ON page_id=rd_from ".
"WHERE page_is_redirect=1 AND rd_from IS NULL AND ".
($end == 0 ? "page_id >= $start"
: "page_id BETWEEN $start AND $end"),
$fname
);
$num = $dbr->numRows( $res );
print "Refreshing $num old redirects from $start...\n";
while( $row = $dbr->fetchObject( $res ) ) {
if ( !( ++$i % $reportingInterval ) ) {
print "$i\n";
wfWaitForSlaves( $maxLag );
}
fixRedirect( $row->page_id );
}
} elseif( $newOnly ) {
print "Refreshing $what from ";
$res = $dbr->select( 'page',
array( 'page_id' ),
array(
'page_is_new' => 1,
"page_id >= $start" ),
$fname
);
$num = $dbr->numRows( $res );
print "$num new articles...\n";
$i = 0;
while ( $row = $dbr->fetchObject( $res ) ) {
if ( !( ++$i % $reportingInterval ) ) {
print "$i\n";
wfWaitForSlaves( $maxLag );
}
if($redirectsOnly)
fixRedirect( $row->page_id );
else
fixLinksFromArticle( $row->page_id );
}
} else {
print "Refreshing $what table.\n";
if ( !$end ) {
$end = $dbr->selectField( 'page', 'max(page_id)', false );
}
print("Starting from page_id $start of $end.\n");
for ($id = $start; $id <= $end; $id++) {
if ( !($id % $reportingInterval) ) {
print "$id\n";
wfWaitForSlaves( $maxLag );
}
if($redirectsOnly)
fixRedirect( $id );
else
fixLinksFromArticle( $id );
}
}
}
function fixRedirect( $id ){
global $wgTitle, $wgArticle;
$wgTitle = Title::newFromID( $id );
$dbw = wfGetDB( DB_MASTER );
if ( is_null( $wgTitle ) ) {
return;
}
$wgArticle = new Article($wgTitle);
$rt = $wgArticle->followRedirect();
if($rt == false || !is_object($rt))
return;
$wgArticle->updateRedirectOn($dbw,$rt);
}
function fixLinksFromArticle( $id ) {
global $wgTitle, $wgParser;
$wgTitle = Title::newFromID( $id );
$dbw = wfGetDB( DB_MASTER );
$linkCache =& LinkCache::singleton();
$linkCache->clear();
if ( is_null( $wgTitle ) ) {
return;
}
$dbw->begin();
$revision = Revision::newFromTitle( $wgTitle );
if ( !$revision ) {
return;
}
$options = new ParserOptions;
$parserOutput = $wgParser->parse( $revision->getText(), $wgTitle, $options, true, true, $revision->getId() );
$update = new LinksUpdate( $wgTitle, $parserOutput, false );
$update->doUpdate();
$dbw->immediateCommit();
}
/*
* Removes non-existing links from pages from pagelinks, imagelinks,
* categorylinks, templatelinks and externallinks tables.
*
* @param $maxLag
* @param $batchSize The size of deletion batches
*
* @author Merlijn van Deen <valhallasw@arctus.nl>
*/
function deleteLinksFromNonexistent( $maxLag = 0, $batchSize = 100 ) {
wfWaitForSlaves( $maxLag );
$dbw = wfGetDB( DB_MASTER );
$lb = wfGetLBFactory()->newMainLB();
$dbr = $lb->getConnection( DB_SLAVE );
$dbr->bufferResults( false );
$linksTables = array( // table name => page_id field
'pagelinks' => 'pl_from',
'imagelinks' => 'il_from',
'categorylinks' => 'cl_from',
'templatelinks' => 'tl_from',
'externallinks' => 'el_from',
);
foreach ( $linksTables as $table => $field ) {
print "Retrieving illegal entries from $table... ";
// SELECT DISTINCT( $field ) FROM $table LEFT JOIN page ON $field=page_id WHERE page_id IS NULL;
$results = $dbr->select( array( $table, 'page' ),
$field,
array('page_id' => null ),
__METHOD__,
'DISTINCT',
array( 'page' => array( 'LEFT JOIN', "$field=page_id"))
);
$counter = 0;
$list = array();
print "0..";
foreach( $results as $row ) {
$counter++;
$list[] = $row->$field;
if ( ( $counter % $batchSize ) == 0 ) {
wfWaitForSlaves(5);
$dbw->delete( $table, array( $field => $list ), __METHOD__ );
print $counter . "..";
$list = array();
}
}
print $counter;
if (count($list) > 0) {
$dbw->delete( $table, array( $field => $list ), __METHOD__ );
}
print "\n";
}
$lb->closeAll();
}
|
