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
|
<?php
/**
* Implements Special:Mostlinked
*
* Copyright © 2005 Ævar Arnfjörð Bjarmason, 2006 Rob Church
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
* @ingroup SpecialPage
* @author Ævar Arnfjörð Bjarmason <avarab@gmail.com>
* @author Rob Church <robchur@gmail.com>
*/
/**
* A special page to show pages ordered by the number of pages linking to them.
*
* @ingroup SpecialPage
*/
class MostlinkedPage extends QueryPage {
function getName() { return 'Mostlinked'; }
function isExpensive() { return true; }
function isSyndicated() { return false; }
function getSQL() {
global $wgMiserMode;
$dbr = wfGetDB( DB_SLAVE );
# In miser mode, reduce the query cost by adding a threshold for large wikis
if ( $wgMiserMode ) {
$numPages = SiteStats::pages();
if ( $numPages > 10000 ) {
$cutoff = 100;
} elseif ( $numPages > 100 ) {
$cutoff = intval( sqrt( $numPages ) );
} else {
$cutoff = 1;
}
} else {
$cutoff = 1;
}
list( $pagelinks, $page ) = $dbr->tableNamesN( 'pagelinks', 'page' );
return
"SELECT 'Mostlinked' AS type,
pl_namespace AS namespace,
pl_title AS title,
COUNT(*) AS value
FROM $pagelinks
LEFT JOIN $page ON pl_namespace=page_namespace AND pl_title=page_title
GROUP BY pl_namespace, pl_title
HAVING COUNT(*) > $cutoff";
}
/**
* Pre-fill the link cache
*/
function preprocessResults( $db, $res ) {
if( $db->numRows( $res ) > 0 ) {
$linkBatch = new LinkBatch();
foreach ( $res as $row ) {
$linkBatch->add( $row->namespace, $row->title );
}
$db->dataSeek( $res, 0 );
$linkBatch->execute();
}
}
/**
* Make a link to "what links here" for the specified title
*
* @param $title Title being queried
* @param $caption String: text to display on the link
* @param $skin Skin to use
* @return String
*/
function makeWlhLink( &$title, $caption, &$skin ) {
$wlh = SpecialPage::getTitleFor( 'Whatlinkshere', $title->getPrefixedDBkey() );
return $skin->linkKnown( $wlh, $caption );
}
/**
* Make links to the page corresponding to the item, and the "what links here" page for it
*
* @param $skin Skin to be used
* @param $result Result row
* @return string
*/
function formatResult( $skin, $result ) {
global $wgLang;
$title = Title::makeTitleSafe( $result->namespace, $result->title );
if ( !$title ) {
return '<!-- ' . htmlspecialchars( "Invalid title: [[$title]]" ) . ' -->';
}
$link = $skin->link( $title );
$wlh = $this->makeWlhLink( $title,
wfMsgExt( 'nlinks', array( 'parsemag', 'escape'),
$wgLang->formatNum( $result->value ) ), $skin );
return wfSpecialList( $link, $wlh );
}
}
/**
* constructor
*/
function wfSpecialMostlinked() {
list( $limit, $offset ) = wfCheckLimits();
$wpp = new MostlinkedPage();
$wpp->doQuery( $offset, $limit );
}
|
