includes/QueryPage.php

   1 <?php
   2 /**
   3  * Contain a class for special pages
   4  * @file
   5  * @ingroup SpecialPages
   6  */
   7
   8 /**
   9  * List of query page classes and their associated special pages,
  10  * for periodic updates.
  11  *
  12  * DO NOT CHANGE THIS LIST without testing that
  13  * maintenance/updateSpecialPages.php still works.
  14  */
  15 global $wgQueryPages; // not redundant
  16 $wgQueryPages = array(
  17 //         QueryPage subclass           Special page name         Limit (false for none, none for the default)
  18 //----------------------------------------------------------------------------
  19         array( 'AncientPagesPage',              'Ancientpages'                  ),
  20         array( 'BrokenRedirectsPage',           'BrokenRedirects'               ),
  21         array( 'DeadendPagesPage',              'Deadendpages'                  ),
  22         array( 'DisambiguationsPage',           'Disambiguations'               ),
  23         array( 'DoubleRedirectsPage',           'DoubleRedirects'               ),
  24         array( 'LinkSearchPage',                'LinkSearch'                    ),
  25         array( 'ListredirectsPage',             'Listredirects'                                 ),
  26         array( 'LonelyPagesPage',               'Lonelypages'                   ),
  27         array( 'LongPagesPage',                 'Longpages'                     ),
  28         array( 'MostcategoriesPage',            'Mostcategories'                ),
  29         array( 'MostimagesPage',                'Mostimages'                    ),
  30         array( 'MostlinkedCategoriesPage',      'Mostlinkedcategories'          ),
  31         array( 'SpecialMostlinkedtemplates',    'Mostlinkedtemplates'                   ),
  32         array( 'MostlinkedPage',                'Mostlinked'                    ),
  33         array( 'MostrevisionsPage',             'Mostrevisions'                 ),
  34         array( 'FewestrevisionsPage',           'Fewestrevisions'               ),
  35         array( 'ShortPagesPage',                'Shortpages'                    ),
  36         array( 'UncategorizedCategoriesPage',   'Uncategorizedcategories'       ),
  37         array( 'UncategorizedPagesPage',        'Uncategorizedpages'            ),
  38         array( 'UncategorizedImagesPage',       'Uncategorizedimages'                   ),
  39         array( 'UncategorizedTemplatesPage',    'Uncategorizedtemplates'                ),
  40         array( 'UnusedCategoriesPage',          'Unusedcategories'              ),
  41         array( 'UnusedimagesPage',              'Unusedimages'                  ),
  42         array( 'WantedCategoriesPage',          'Wantedcategories'              ),
  43         array( 'WantedFilesPage',               'Wantedfiles'                   ),
  44         array( 'WantedPagesPage',               'Wantedpages'                   ),
  45         array( 'WantedTemplatesPage',          'Wantedtemplates'              ),
  46         array( 'UnwatchedPagesPage',            'Unwatchedpages'                ),
  47         array( 'UnusedtemplatesPage',           'Unusedtemplates'                               ),
  48         array( 'WithoutInterwikiPage',                  'Withoutinterwiki'                              ),
  49 );
  50 wfRunHooks( 'wgQueryPages', array( &$wgQueryPages ) );
  51
  52 global $wgDisableCounters;
  53 if ( !$wgDisableCounters )
  54         $wgQueryPages[] = array( 'PopularPagesPage',            'Popularpages'          );
  55
  56
  57 /**
  58  * This is a class for doing query pages; since they're almost all the same,
  59  * we factor out some of the functionality into a superclass, and let
  60  * subclasses derive from it.
  61  * @ingroup SpecialPage
  62  */
  63 class QueryPage {
  64         /**
  65          * Whether or not we want plain listoutput rather than an ordered list
  66          *
  67          * @var bool
  68          */
  69         var $listoutput = false;
  70
  71         /**
  72          * The offset and limit in use, as passed to the query() function
  73          *
  74          * @var integer
  75          */
  76         var $offset = 0;
  77         var $limit = 0;
  78
  79         /**
  80          * A mutator for $this->listoutput;
  81          *
  82          * @param bool $bool
  83          */
  84         function setListoutput( $bool ) {
  85                 $this->listoutput = $bool;
  86         }
  87
  88         /**
  89          * Subclasses return their name here. Make sure the name is also
  90          * specified in SpecialPage.php and in Language.php as a language message
  91          * param.
  92          */
  93         function getName() {
  94                 return '';
  95         }
  96
  97         /**
  98          * Return title object representing this page
  99          *
 100          * @return Title
 101          */
 102         function getTitle() {
 103                 return SpecialPage::getTitleFor( $this->getName() );
 104         }
 105
 106         /**
 107          * Subclasses return an SQL query here.
 108          *
 109          * Note that the query itself should return the following four columns:
 110          * 'type' (your special page's name), 'namespace', 'title', and 'value'
 111          * *in that order*. 'value' is used for sorting.
 112          *
 113          * These may be stored in the querycache table for expensive queries,
 114          * and that cached data will be returned sometimes, so the presence of
 115          * extra fields can't be relied upon. The cached 'value' column will be
 116          * an integer; non-numeric values are useful only for sorting the initial
 117          * query.
 118          *
 119          * Don't include an ORDER or LIMIT clause, this will be added.
 120          */
 121         function getSQL() {
 122                 return "SELECT 'sample' as type, 0 as namespace, 'Sample result' as title, 42 as value";
 123         }
 124
 125         /**
 126          * Override to sort by increasing values
 127          */
 128         function sortDescending() {
 129                 return true;
 130         }
 131
 132         function getOrder() {
 133                 return ' ORDER BY value ' .
 134                         ($this->sortDescending() ? 'DESC' : '');
 135         }
 136
 137         /**
 138          * Is this query expensive (for some definition of expensive)? Then we
 139          * don't let it run in miser mode. $wgDisableQueryPages causes all query
 140          * pages to be declared expensive. Some query pages are always expensive.
 141          */
 142         function isExpensive( ) {
 143                 global $wgDisableQueryPages;
 144                 return $wgDisableQueryPages;
 145         }
 146
 147         /**
 148          * Whether or not the output of the page in question is retrived from
 149          * the database cache.
 150          *
 151          * @return bool
 152          */
 153         function isCached() {
 154                 global $wgMiserMode;
 155
 156                 return $this->isExpensive() && $wgMiserMode;
 157         }
 158
 159         /**
 160          * Sometime we dont want to build rss / atom feeds.
 161          */
 162         function isSyndicated() {
 163                 return true;
 164         }
 165
 166         /**
 167          * Formats the results of the query for display. The skin is the current
 168          * skin; you can use it for making links. The result is a single row of
 169          * result data. You should be able to grab SQL results off of it.
 170          * If the function return "false", the line output will be skipped.
 171          */
 172         function formatResult( $skin, $result ) {
 173                 return '';
 174         }
 175         /**
 176          * Formats the result as something that can be understood by the API.
 177          * Defaults to setting id, ns and title
 178          */
 179         function formatApiResult( $row ) {
 180                 $title = Title::makeTitle( $row->namespace, $row->title );
 181                 return array(
 182                                                 //'pageid' => intval( $row->id ),
 183                                                 'ns' => intval( $title->getNamespace() ),
 184                                                 'title' => $title->getPrefixedText(),
 185                 );
 186         }
 187
 188         /**
 189          * The content returned by this function will be output before any result
 190          */
 191         function getPageHeader( ) {
 192                 return '';
 193         }
 194
 195         /**
 196          * If using extra form wheely-dealies, return a set of parameters here
 197          * as an associative array. They will be encoded and added to the paging
 198          * links (prev/next/lengths).
 199          * @return array
 200          */
 201         function linkParameters() {
 202                 return array();
 203         }
 204
 205         /**
 206          * Some special pages (for example SpecialListusers) might not return the
 207          * current object formatted, but return the previous one instead.
 208          * Setting this to return true, will call one more time wfFormatResult to
 209          * be sure that the very last result is formatted and shown.
 210          */
 211         function tryLastResult( ) {
 212                 return false;
 213         }
 214
 215         /**
 216          * Clear the cache and save new results
 217          */
 218         function recache( $limit, $ignoreErrors = true ) {
 219                 $fname = get_class( $this ) . '::recache';
 220                 $dbw = wfGetDB( DB_MASTER );
 221                 $dbr = wfGetDB( DB_SLAVE, array( $this->getName(), __METHOD__, 'vslow' ) );
 222                 if ( !$dbw || !$dbr ) {
 223                         return false;
 224                 }
 225
 226                 $querycache = $dbr->tableName( 'querycache' );
 227
 228                 if ( $ignoreErrors ) {
 229                         $ignoreW = $dbw->ignoreErrors( true );
 230                         $ignoreR = $dbr->ignoreErrors( true );
 231                 }
 232
 233                 # Clear out any old cached data
 234                 $dbw->delete( 'querycache', array( 'qc_type' => $this->getName() ), $fname );
 235                 # Do query
 236                 $sql = $this->getSQL() . $this->getOrder();
 237                 if ( $limit !== false )
 238                         $sql = $dbr->limitResult( $sql, $limit, 0 );
 239                 $res = $dbr->query( $sql, $fname );
 240                 $num = false;
 241                 if ( $res ) {
 242                         $num = $dbr->numRows( $res );
 243                         # Fetch results
 244                         $vals = array();
 245                         while ( $res && $row = $dbr->fetchObject( $res ) ) {
 246                                 if ( isset( $row->value ) ) {
 247                                         $value = intval( $row->value ); // @bug 14414
 248                                 } else {
 249                                         $value = 0;
 250                                 }
 251
 252                                 $vals[] = array('qc_type' => $row->type,
 253                                                 'qc_namespace' => $row->namespace,
 254                                                 'qc_title' => $row->title,
 255                                                 'qc_value' => $value);
 256                         }
 257
 258                         # Save results into the querycache table on the master
 259                         if ( count( $vals ) ) {
 260                                 if ( !$dbw->insert( 'querycache', $vals, __METHOD__ ) ) {
 261                                         // Set result to false to indicate error
 262                                         $dbr->freeResult( $res );
 263                                         $res = false;
 264                                 }
 265                         }
 266                         if ( $res ) {
 267                                 $dbr->freeResult( $res );
 268                         }
 269                         if ( $ignoreErrors ) {
 270                                 $dbw->ignoreErrors( $ignoreW );
 271                                 $dbr->ignoreErrors( $ignoreR );
 272                         }
 273
 274                         # Update the querycache_info record for the page
 275                         $dbw->delete( 'querycache_info', array( 'qci_type' => $this->getName() ), $fname );
 276                         $dbw->insert( 'querycache_info', array( 'qci_type' => $this->getName(), 'qci_timestamp' => $dbw->timestamp() ), $fname );
 277
 278                 }
 279                 return $num;
 280         }
 281
 282         /**
 283          * This is the actual workhorse. It does everything needed to make a
 284          * real, honest-to-gosh query page.
 285          *
 286          * @param $offset database query offset
 287          * @param $limit database query limit
 288          * @param $shownavigation show navigation like "next 200"?
 289          */
 290         function doQuery( $offset, $limit, $shownavigation=true ) {
 291                 global $wgUser, $wgOut, $wgLang, $wgContLang;
 292
 293                 $wgOut->setSyndicated( $this->isSyndicated() );
 294
 295                 # Really really do the query now
 296                 $result = $this->reallyDoQuery( $offset, $limit );
 297
 298                 # Tell about cachiness
 299                 if ( $result['cached'] !== false ) {
 300                         if ( $result['cached'] === true ) {
 301                                 $wgOut->addWikiMsg( 'perfcached' );
 302                         } else {
 303                                 $updated = $wgLang->timeAndDate( $result['cached'], true, true );
 304                                 $wgOut->addMeta( 'Data-Cache-Time', $result['cached'] );
 305                                 $wgOut->addInlineScript( "var dataCacheTime = '{$result['cached']}';" );
 306                                 $wgOut->addWikiMsg( 'perfcachedts', $updated );
 307                         }
 308                 }
 309                 if ( $result['disabled'] ) {
 310                         # If updates on this page have been disabled, let the user know
 311                         # that the data set won't be refreshed for now
 312
 313                         $wgOut->addWikiMsg( 'querypage-no-updates' );
 314                 }
 315
 316                 $wgOut->addHTML( XML::openElement( 'div', array('class' => 'mw-spcontent') ) );
 317
 318                 # Top header and navigation
 319                 if( $shownavigation ) {
 320                         $wgOut->addHTML( $this->getPageHeader() );
 321                         if( $result['count'] > 0 ) {
 322                                 $wgOut->addHTML( '<p>' . wfShowingResults( $offset, $result['count'] ) . '</p>' );
 323                                 # Disable the "next" link when we reach the end
 324                                 $paging = wfViewPrevNext( $offset, $limit, $wgContLang->specialPage( $this->getName() ),
 325                                         wfArrayToCGI( $this->linkParameters() ), ( $result['count'] < $limit ) );
 326                                 $wgOut->addHTML( '<p>' . $paging . '</p>' );
 327                         } else {
 328                                 # No results to show, so don't bother with "showing X of Y" etc.
 329                                 # -- just let the user know and give up now
 330                                 $wgOut->addHTML( '<p>' . wfMsgHtml( 'specialpage-empty' ) . '</p>' );
 331                                 $wgOut->addHTML( XML::closeElement( 'div' ) );
 332                                 return;
 333                         }
 334                 }
 335
 336                 # The actual results; specialist subclasses will want to handle this
 337                 # with more than a straight list, so we hand them the info, plus
 338                 # an OutputPage, and let them get on with it
 339                 $this->outputResults( $wgOut,
 340                         $wgUser->getSkin(),
 341                         $result['dbr'], # Should use a ResultWrapper for this
 342                         $result['result'],
 343                         $result['count'],
 344                         $offset );
 345
 346                 # Repeat the paging links at the bottom
 347                 if( $shownavigation ) {
 348                         $wgOut->addHTML( '<p>' . $paging . '</p>' );
 349                 }
 350
 351                 $wgOut->addHTML( XML::closeElement( 'div' ) );
 352
 353                 return $result['count'];
 354         }
 355
 356         /**
 357          * Really really do the query. Returns an array with:
 358          *              'disabled'      => true if the data will not be further refreshed,
 359          *              'cached'        => false if uncached, the timestamp of the last cache if known, else simply true,
 360          *              'result'        => the real result object,
 361          *              'count'         => number of results,
 362          *              'dbr'           => the database used for fetching the data
 363          */
 364         public function reallyDoQuery( $offset, $limit ) {
 365                 $result = array( 'disabled' => false );
 366
 367                 $this->offset = $offset;
 368                 $this->limit = $limit;
 369
 370                 $fname = get_class($this) . '::reallyDoQuery';
 371                 $dbr = wfGetDB( DB_SLAVE );
 372
 373
 374                 if ( !$this->isCached() ) {
 375                         $sql = $this->getSQL();
 376                         $result['cached'] = false;
 377                 } else {
 378                         # Get the cached result
 379                         $querycache = $dbr->tableName( 'querycache' );
 380                         $type = $dbr->strencode( $this->getName() );
 381                         $sql =
 382                                 "SELECT qc_type as type, qc_namespace as namespace,qc_title as title, qc_value as value
 383                                  FROM $querycache WHERE qc_type='$type'";
 384
 385                         if( !$this->listoutput ) {
 386
 387                                 # Fetch the timestamp of this update
 388                                 $tRes = $dbr->select( 'querycache_info', array( 'qci_timestamp' ), array( 'qci_type' => $type ), $fname );
 389                                 $tRow = $dbr->fetchObject( $tRes );
 390
 391                                 if( $tRow ) {
 392                                         $result['cached'] = $tRow->qci_timestamp;
 393                                 } else {
 394                                         $result['cached'] = true;
 395                                 }
 396
 397                                 # If updates on this page have been disabled, let the user know
 398                                 # that the data set won't be refreshed for now
 399                                 global $wgDisableQueryPageUpdate;
 400                                 if( is_array( $wgDisableQueryPageUpdate ) && in_array( $this->getName(), $wgDisableQueryPageUpdate ) ) {
 401                                         $result['disabled'] = true;
 402                                 }
 403                         }
 404
 405                 }
 406
 407                 $sql .= $this->getOrder();
 408                 $sql = $dbr->limitResult($sql, $limit, $offset);
 409                 $res = $dbr->query( $sql );
 410                 $num = $dbr->numRows($res);
 411
 412                 $this->preprocessResults( $dbr, $res );
 413
 414                 $result['result'] = $res;
 415                 $result['count'] = $num;
 416                 $result['dbr'] = $dbr;
 417                 return $result;
 418         }
 419
 420         /**
 421          * Format and output report results using the given information plus
 422          * OutputPage
 423          *
 424          * @param OutputPage $out OutputPage to print to
 425          * @param Skin $skin User skin to use
 426          * @param Database $dbr Database (read) connection to use
 427          * @param int $res Result pointer
 428          * @param int $num Number of available result rows
 429          * @param int $offset Paging offset
 430          */
 431         protected function outputResults( $out, $skin, $dbr, $res, $num, $offset ) {
 432                 global $wgContLang;
 433
 434                 if( $num > 0 ) {
 435                         $html = array();
 436                         if( !$this->listoutput )
 437                                 $html[] = $this->openList( $offset );
 438
 439                         # $res might contain the whole 1,000 rows, so we read up to
 440                         # $num [should update this to use a Pager]
 441                         for ( $i = 0; $i < $num && $row = $dbr->fetchObject( $res ); $i++ ) {
 442                                 $line = $this->formatResult( $skin, $row );
 443                                 if( $line ) {
 444                                         $attr = ( isset( $row->usepatrol ) && $row->usepatrol && $row->patrolled == 0 )
 445                                                 ? ' class="not-patrolled"'
 446                                                 : '';
 447                                         $html[] = $this->listoutput
 448                                                 ? $line
 449                                                 : "<li{$attr}>{$line}</li>\n";
 450                                 }
 451                         }
 452
 453                         # Flush the final result
 454                         if( $this->tryLastResult() ) {
 455                                 $row = null;
 456                                 $line = $this->formatResult( $skin, $row );
 457                                 if( $line ) {
 458                                         $attr = ( isset( $row->usepatrol ) && $row->usepatrol && $row->patrolled == 0 )
 459                                                 ? ' class="not-patrolled"'
 460                                                 : '';
 461                                         $html[] = $this->listoutput
 462                                                 ? $line
 463                                                 : "<li{$attr}>{$line}</li>\n";
 464                                 }
 465                         }
 466
 467                         if( !$this->listoutput )
 468                                 $html[] = $this->closeList();
 469
 470                         $html = $this->listoutput
 471                                 ? $wgContLang->listToText( $html )
 472                                 : implode( '', $html );
 473
 474                         $out->addHTML( $html );
 475                 }
 476         }
 477
 478
 479         function openList( $offset ) {
 480                 return "\n<ol start='" . ( $offset + 1 ) . "' class='special'>\n";
 481         }
 482
 483         function closeList() {
 484                 return "</ol>\n";
 485         }
 486
 487         /**
 488          * Do any necessary preprocessing of the result object.
 489          */
 490         function preprocessResults( $db, $res ) {}
 491
 492         /**
 493          * Similar to above, but packaging in a syndicated feed instead of a web page
 494          */
 495         function doFeed( $class = '', $limit = 50 ) {
 496                 global $wgFeed, $wgFeedClasses;
 497
 498                 if ( !$wgFeed ) {
 499                         global $wgOut;
 500                         $wgOut->addWikiMsg( 'feed-unavailable' );
 501                         return;
 502                 }
 503
 504                 global $wgFeedLimit;
 505                 if( $limit > $wgFeedLimit ) {
 506                         $limit = $wgFeedLimit;
 507                 }
 508
 509                 if( isset($wgFeedClasses[$class]) ) {
 510                         $feed = new $wgFeedClasses[$class](
 511                                 $this->feedTitle(),
 512                                 $this->feedDesc(),
 513                                 $this->feedUrl() );
 514                         $feed->outHeader();
 515
 516                         $dbr = wfGetDB( DB_SLAVE );
 517                         $sql = $this->getSQL() . $this->getOrder();
 518                         $sql = $dbr->limitResult( $sql, $limit, 0 );
 519                         $res = $dbr->query( $sql, 'QueryPage::doFeed' );
 520                         while( $obj = $dbr->fetchObject( $res ) ) {
 521                                 $item = $this->feedResult( $obj );
 522                                 if( $item ) $feed->outItem( $item );
 523                         }
 524                         $dbr->freeResult( $res );
 525
 526                         $feed->outFooter();
 527                         return true;
 528                 } else {
 529                         return false;
 530                 }
 531         }
 532
 533         /**
 534          * Override for custom handling. If the titles/links are ok, just do
 535          * feedItemDesc()
 536          */
 537         function feedResult( $row ) {
 538                 if( !isset( $row->title ) ) {
 539                         return NULL;
 540                 }
 541                 $title = Title::MakeTitle( intval( $row->namespace ), $row->title );
 542                 if( $title ) {
 543                         $date = isset( $row->timestamp ) ? $row->timestamp : '';
 544                         $comments = '';
 545                         if( $title ) {
 546                                 $talkpage = $title->getTalkPage();
 547                                 $comments = $talkpage->getFullURL();
 548                         }
 549
 550                         return new FeedItem(
 551                                 $title->getPrefixedText(),
 552                                 $this->feedItemDesc( $row ),
 553                                 $title->getFullURL(),
 554                                 $date,
 555                                 $this->feedItemAuthor( $row ),
 556                                 $comments);
 557                 } else {
 558                         return NULL;
 559                 }
 560         }
 561
 562         function feedItemDesc( $row ) {
 563                 return isset( $row->comment ) ? htmlspecialchars( $row->comment ) : '';
 564         }
 565
 566         function feedItemAuthor( $row ) {
 567                 return isset( $row->user_text ) ? $row->user_text : '';
 568         }
 569
 570         function feedTitle() {
 571                 global $wgContLanguageCode, $wgSitename;
 572                 $page = SpecialPage::getPage( $this->getName() );
 573                 $desc = $page->getDescription();
 574                 return "$wgSitename - $desc [$wgContLanguageCode]";
 575         }
 576
 577         function feedDesc() {
 578                 return wfMsgExt( 'tagline', 'parsemag' );
 579         }
 580
 581         function feedUrl() {
 582                 $title = SpecialPage::getTitleFor( $this->getName() );
 583                 return $title->getFullURL();
 584         }
 585 }
 586
 587 /**
 588  * Class definition for a wanted query page like
 589  * WantedPages, WantedTemplates, etc
 590  */
 591 abstract class WantedQueryPage extends QueryPage {
 592
 593         function isExpensive() {
 594                 return true;
 595         }
 596
 597         function isSyndicated() {
 598                 return false;
 599         }
 600
 601         /**
 602          * Cache page existence for performance
 603          */
 604         function preprocessResults( $db, $res ) {
 605                 $batch = new LinkBatch;
 606                 while ( $row = $db->fetchObject( $res ) )
 607                         $batch->add( $row->namespace, $row->title );
 608                 $batch->execute();
 609
 610                 // Back to start for display
 611                 if ( $db->numRows( $res ) > 0 )
 612                         // If there are no rows we get an error seeking.
 613                         $db->dataSeek( $res, 0 );
 614         }
 615
 616         /**
 617          * Format an individual result
 618          *
 619          * @param $skin Skin to use for UI elements
 620          * @param $result Result row
 621          * @return string
 622          */
 623         public function formatResult( $skin, $result ) {
 624                 $title = Title::makeTitleSafe( $result->namespace, $result->title );
 625                 if( $title instanceof Title ) {
 626                         if( $this->isCached() ) {
 627                                 $pageLink = $title->exists()
 628                                         ? '<s>' . $skin->link( $title ) . '</s>'
 629                                         : $skin->link(
 630                                                 $title,
 631                                                 null,
 632                                                 array(),
 633                                                 array(),
 634                                                 array( 'broken' )
 635                                         );
 636                         } else {
 637                                 $pageLink = $skin->link(
 638                                         $title,
 639                                         null,
 640                                         array(),
 641                                         array(),
 642                                         array( 'broken' )
 643                                 );
 644                         }
 645                         return wfSpecialList( $pageLink, $this->makeWlhLink( $title, $skin, $result ) );
 646                 } else {
 647                         $tsafe = htmlspecialchars( $result->title );
 648                         return wfMsgHtml( 'wantedpages-badtitle', $tsafe );
 649                 }
 650         }
 651
 652         /**
 653          * Make a "what links here" link for a given title
 654          *
 655          * @param Title $title Title to make the link for
 656          * @param Skin $skin Skin to use
 657          * @param object $result Result row
 658          * @return string
 659          */
 660         private function makeWlhLink( $title, $skin, $result ) {
 661                 global $wgLang;
 662                 $wlh = SpecialPage::getTitleFor( 'Whatlinkshere' );
 663                 $label = wfMsgExt( 'nlinks', array( 'parsemag', 'escape' ),
 664                 $wgLang->formatNum( $result->value ) );
 665                 return $skin->link( $wlh, $label, array(), array( 'target' => $title->getPrefixedText() ) );
 666         }
 667 }