includes/CategoryViewer.php

   1 <?php
   2
   3 if ( !defined( 'MEDIAWIKI' ) )
   4         die( 1 );
   5
   6 class CategoryViewer extends ContextSource {
   7         var $limit, $from, $until,
   8                 $articles, $articles_start_char,
   9                 $children, $children_start_char,
  10                 $showGallery, $imgsNoGalley,
  11                 $imgsNoGallery_start_char,
  12                 $imgsNoGallery;
  13
  14         /**
  15          * @var
  16          */
  17         var $nextPage;
  18
  19         /**
  20          * @var Array
  21          */
  22         var $flip;
  23
  24         /**
  25          * @var Title
  26          */
  27         var $title;
  28
  29         /**
  30          * @var Collation
  31          */
  32         var $collation;
  33
  34         /**
  35          * @var ImageGallery
  36          */
  37         var $gallery;
  38
  39         /**
  40          * Category object for this page
  41          * @var Category
  42          */
  43         private $cat;
  44
  45         /**
  46          * The original query array, to be used in generating paging links.
  47          * @var array
  48          */
  49         private $query;
  50
  51         /**
  52          * Constructor
  53          *
  54          * @since 1.19 $context is a second, required parameter
  55          * @param $title Title
  56          * @param $context IContextSource
  57          * @param $from String
  58          * @param $until String
  59          * @param $query Array
  60          */
  61         function __construct( $title, IContextSource $context, $from = '', $until = '', $query = array() ) {
  62                 global $wgCategoryPagingLimit;
  63                 $this->title = $title;
  64                 $this->setContext( $context );
  65                 $this->from = $from;
  66                 $this->until = $until;
  67                 $this->limit = $wgCategoryPagingLimit;
  68                 $this->cat = Category::newFromTitle( $title );
  69                 $this->query = $query;
  70                 $this->collation = Collation::singleton();
  71                 unset( $this->query['title'] );
  72         }
  73
  74         /**
  75          * Format the category data list.
  76          *
  77          * @return string HTML output
  78          */
  79         public function getHTML() {
  80                 global $wgCategoryMagicGallery;
  81                 wfProfileIn( __METHOD__ );
  82
  83                 $this->showGallery = $wgCategoryMagicGallery && !$this->getOutput()->mNoGallery;
  84
  85                 $this->clearCategoryState();
  86                 $this->doCategoryQuery();
  87                 $this->finaliseCategoryState();
  88
  89                 $r = $this->getSubcategorySection() .
  90                         $this->getPagesSection() .
  91                         $this->getImageSection();
  92
  93                 if ( $r == '' ) {
  94                         // If there is no category content to display, only
  95                         // show the top part of the navigation links.
  96                         // @todo FIXME: Cannot be completely suppressed because it
  97                         //        is unknown if 'until' or 'from' makes this
  98                         //        give 0 results.
  99                         $r = $r . $this->getCategoryTop();
 100                 } else {
 101                         $r = $this->getCategoryTop() .
 102                                 $r .
 103                                 $this->getCategoryBottom();
 104                 }
 105
 106                 // Give a proper message if category is empty
 107                 if ( $r == '' ) {
 108                         $r = wfMsgExt( 'category-empty', array( 'parse' ) );
 109                 }
 110
 111                 $lang = $this->getLang();
 112                 $langAttribs = array( 'lang' => $lang->getCode(), 'dir' => $lang->getDir() );
 113                 # put a div around the headings which are in the user language
 114                 $r = Html::openElement( 'div', $langAttribs ) . $r . '</div>';
 115
 116                 wfProfileOut( __METHOD__ );
 117                 return $r;
 118         }
 119
 120         function clearCategoryState() {
 121                 $this->articles = array();
 122                 $this->articles_start_char = array();
 123                 $this->children = array();
 124                 $this->children_start_char = array();
 125                 if ( $this->showGallery ) {
 126                         $this->gallery = new ImageGallery();
 127                         $this->gallery->setHideBadImages();
 128                 } else {
 129                         $this->imgsNoGallery = array();
 130                         $this->imgsNoGallery_start_char = array();
 131                 }
 132         }
 133
 134         /**
 135          * Add a subcategory to the internal lists, using a Category object
 136          */
 137         function addSubcategoryObject( Category $cat, $sortkey, $pageLength ) {
 138                 // Subcategory; strip the 'Category' namespace from the link text.
 139                 $title = $cat->getTitle();
 140
 141                 $link = Linker::link( $title, htmlspecialchars( $title->getText() ) );
 142                 if ( $title->isRedirect() ) {
 143                         // This didn't used to add redirect-in-category, but might
 144                         // as well be consistent with the rest of the sections
 145                         // on a category page.
 146                         $link = '<span class="redirect-in-category">' . $link . '</span>';
 147                 }
 148                 $this->children[] = $link;
 149
 150                 $this->children_start_char[] =
 151                         $this->getSubcategorySortChar( $cat->getTitle(), $sortkey );
 152         }
 153
 154         /**
 155          * Add a subcategory to the internal lists, using a title object
 156          * @deprecated since 1.17 kept for compatibility, please use addSubcategoryObject instead
 157          */
 158         function addSubcategory( Title $title, $sortkey, $pageLength ) {
 159                 $this->addSubcategoryObject( Category::newFromTitle( $title ), $sortkey, $pageLength );
 160         }
 161
 162         /**
 163         * Get the character to be used for sorting subcategories.
 164         * If there's a link from Category:A to Category:B, the sortkey of the resulting
 165         * entry in the categorylinks table is Category:A, not A, which it SHOULD be.
 166         * Workaround: If sortkey == "Category:".$title, than use $title for sorting,
 167         * else use sortkey...
 168         *
 169         * @param Title $title
 170         * @param string $sortkey The human-readable sortkey (before transforming to icu or whatever).
 171         */
 172         function getSubcategorySortChar( $title, $sortkey ) {
 173                 global $wgContLang;
 174
 175                 if ( $title->getPrefixedText() == $sortkey ) {
 176                         $word = $title->getDBkey();
 177                 } else {
 178                         $word = $sortkey;
 179                 }
 180
 181                 $firstChar = $this->collation->getFirstLetter( $word );
 182
 183                 return $wgContLang->convert( $firstChar );
 184         }
 185
 186         /**
 187          * Add a page in the image namespace
 188          */
 189         function addImage( Title $title, $sortkey, $pageLength, $isRedirect = false ) {
 190                 global $wgContLang;
 191                 if ( $this->showGallery ) {
 192                         $flip = $this->flip['file'];
 193                         if ( $flip ) {
 194                                 $this->gallery->insert( $title );
 195                         } else {
 196                                 $this->gallery->add( $title );
 197                         }
 198                 } else {
 199                         $link = Linker::link( $title );
 200                         if ( $isRedirect ) {
 201                                 // This seems kind of pointless given 'mw-redirect' class,
 202                                 // but keeping for back-compatibility with user css.
 203                                 $link = '<span class="redirect-in-category">' . $link . '</span>';
 204                         }
 205                         $this->imgsNoGallery[] = $link;
 206
 207                         $this->imgsNoGallery_start_char[] = $wgContLang->convert(
 208                                 $this->collation->getFirstLetter( $sortkey ) );
 209                 }
 210         }
 211
 212         /**
 213          * Add a miscellaneous page
 214          */
 215         function addPage( $title, $sortkey, $pageLength, $isRedirect = false ) {
 216                 global $wgContLang;
 217
 218                 $link = Linker::link( $title );
 219                 if ( $isRedirect ) {
 220                         // This seems kind of pointless given 'mw-redirect' class,
 221                         // but keeping for back-compatiability with user css.
 222                         $link = '<span class="redirect-in-category">' . $link . '</span>';
 223                 }
 224                 $this->articles[] = $link;
 225
 226                 $this->articles_start_char[] = $wgContLang->convert(
 227                         $this->collation->getFirstLetter( $sortkey ) );
 228         }
 229
 230         function finaliseCategoryState() {
 231                 if ( $this->flip['subcat'] ) {
 232                         $this->children            = array_reverse( $this->children );
 233                         $this->children_start_char = array_reverse( $this->children_start_char );
 234                 }
 235                 if ( $this->flip['page'] ) {
 236                         $this->articles            = array_reverse( $this->articles );
 237                         $this->articles_start_char = array_reverse( $this->articles_start_char );
 238                 }
 239                 if ( !$this->showGallery && $this->flip['file'] ) {
 240                         $this->imgsNoGallery            = array_reverse( $this->imgsNoGallery );
 241                         $this->imgsNoGallery_start_char = array_reverse( $this->imgsNoGallery_start_char );
 242                 }
 243         }
 244
 245         function doCategoryQuery() {
 246                 $dbr = wfGetDB( DB_SLAVE, 'category' );
 247
 248                 $this->nextPage = array(
 249                         'page' => null,
 250                         'subcat' => null,
 251                         'file' => null,
 252                 );
 253                 $this->flip = array( 'page' => false, 'subcat' => false, 'file' => false );
 254
 255                 foreach ( array( 'page', 'subcat', 'file' ) as $type ) {
 256                         # Get the sortkeys for start/end, if applicable.  Note that if
 257                         # the collation in the database differs from the one
 258                         # set in $wgCategoryCollation, pagination might go totally haywire.
 259                         $extraConds = array( 'cl_type' => $type );
 260                         if ( $this->from[$type] !== null ) {
 261                                 $extraConds[] = 'cl_sortkey >= '
 262                                         . $dbr->addQuotes( $this->collation->getSortKey( $this->from[$type] ) );
 263                         } elseif ( $this->until[$type] !== null ) {
 264                                 $extraConds[] = 'cl_sortkey < '
 265                                         . $dbr->addQuotes( $this->collation->getSortKey( $this->until[$type] ) );
 266                                 $this->flip[$type] = true;
 267                         }
 268
 269                         $res = $dbr->select(
 270                                 array( 'page', 'categorylinks', 'category' ),
 271                                 array( 'page_id', 'page_title', 'page_namespace', 'page_len',
 272                                         'page_is_redirect', 'cl_sortkey', 'cat_id', 'cat_title',
 273                                         'cat_subcats', 'cat_pages', 'cat_files',
 274                                         'cl_sortkey_prefix', 'cl_collation' ),
 275                                 array_merge( array( 'cl_to' => $this->title->getDBkey() ),  $extraConds ),
 276                                 __METHOD__,
 277                                 array(
 278                                         'USE INDEX' => array( 'categorylinks' => 'cl_sortkey' ),
 279                                         'LIMIT' => $this->limit + 1,
 280                                         'ORDER BY' => $this->flip[$type] ? 'cl_sortkey DESC' : 'cl_sortkey',
 281                                 ),
 282                                 array(
 283                                         'categorylinks'  => array( 'INNER JOIN', 'cl_from = page_id' ),
 284                                         'category' => array( 'LEFT JOIN', 'cat_title = page_title AND page_namespace = ' . NS_CATEGORY )
 285                                 )
 286                         );
 287
 288                         $count = 0;
 289                         foreach ( $res as $row ) {
 290                                 $title = Title::newFromRow( $row );
 291                                 if ( $row->cl_collation === '' ) {
 292                                         // Hack to make sure that while updating from 1.16 schema
 293                                         // and db is inconsistent, that the sky doesn't fall.
 294                                         // See r83544. Could perhaps be removed in a couple decades...
 295                                         $humanSortkey = $row->cl_sortkey;
 296                                 } else {
 297                                         $humanSortkey = $title->getCategorySortkey( $row->cl_sortkey_prefix );
 298                                 }
 299
 300                                 if ( ++$count > $this->limit ) {
 301                                         # We've reached the one extra which shows that there
 302                                         # are additional pages to be had. Stop here...
 303                                         $this->nextPage[$type] = $humanSortkey;
 304                                         break;
 305                                 }
 306
 307                                 if ( $title->getNamespace() == NS_CATEGORY ) {
 308                                         $cat = Category::newFromRow( $row, $title );
 309                                         $this->addSubcategoryObject( $cat, $humanSortkey, $row->page_len );
 310                                 } elseif ( $title->getNamespace() == NS_FILE ) {
 311                                         $this->addImage( $title, $humanSortkey, $row->page_len, $row->page_is_redirect );
 312                                 } else {
 313                                         $this->addPage( $title, $humanSortkey, $row->page_len, $row->page_is_redirect );
 314                                 }
 315                         }
 316                 }
 317         }
 318
 319         function getCategoryTop() {
 320                 $r = $this->getCategoryBottom();
 321                 return $r === ''
 322                         ? $r
 323                         : "<br style=\"clear:both;\"/>\n" . $r;
 324         }
 325
 326         function getSubcategorySection() {
 327                 # Don't show subcategories section if there are none.
 328                 $r = '';
 329                 $rescnt = count( $this->children );
 330                 $dbcnt = $this->cat->getSubcatCount();
 331                 $countmsg = $this->getCountMessage( $rescnt, $dbcnt, 'subcat' );
 332
 333                 if ( $rescnt > 0 ) {
 334                         # Showing subcategories
 335                         $r .= "<div id=\"mw-subcategories\">\n";
 336                         $r .= '<h2>' . wfMsg( 'subcategories' ) . "</h2>\n";
 337                         $r .= $countmsg;
 338                         $r .= $this->getSectionPagingLinks( 'subcat' );
 339                         $r .= $this->formatList( $this->children, $this->children_start_char );
 340                         $r .= $this->getSectionPagingLinks( 'subcat' );
 341                         $r .= "\n</div>";
 342                 }
 343                 return $r;
 344         }
 345
 346         function getPagesSection() {
 347                 $ti = htmlspecialchars( $this->title->getText() );
 348                 # Don't show articles section if there are none.
 349                 $r = '';
 350
 351                 # @todo FIXME: Here and in the other two sections: we don't need to bother
 352                 # with this rigamarole if the entire category contents fit on one page
 353                 # and have already been retrieved.  We can just use $rescnt in that
 354                 # case and save a query and some logic.
 355                 $dbcnt = $this->cat->getPageCount() - $this->cat->getSubcatCount()
 356                         - $this->cat->getFileCount();
 357                 $rescnt = count( $this->articles );
 358                 $countmsg = $this->getCountMessage( $rescnt, $dbcnt, 'article' );
 359
 360                 if ( $rescnt > 0 ) {
 361                         $r = "<div id=\"mw-pages\">\n";
 362                         $r .= '<h2>' . wfMsg( 'category_header', $ti ) . "</h2>\n";
 363                         $r .= $countmsg;
 364                         $r .= $this->getSectionPagingLinks( 'page' );
 365                         $r .= $this->formatList( $this->articles, $this->articles_start_char );
 366                         $r .= $this->getSectionPagingLinks( 'page' );
 367                         $r .= "\n</div>";
 368                 }
 369                 return $r;
 370         }
 371
 372         function getImageSection() {
 373                 $r = '';
 374                 $rescnt = $this->showGallery ? $this->gallery->count() : count( $this->imgsNoGallery );
 375                 if ( $rescnt > 0 ) {
 376                         $dbcnt = $this->cat->getFileCount();
 377                         $countmsg = $this->getCountMessage( $rescnt, $dbcnt, 'file' );
 378
 379                         $r .= "<div id=\"mw-category-media\">\n";
 380                         $r .= '<h2>' . wfMsg( 'category-media-header', htmlspecialchars( $this->title->getText() ) ) . "</h2>\n";
 381                         $r .= $countmsg;
 382                         $r .= $this->getSectionPagingLinks( 'file' );
 383                         if ( $this->showGallery ) {
 384                                 $r .= $this->gallery->toHTML();
 385                         } else {
 386                                 $r .= $this->formatList( $this->imgsNoGallery, $this->imgsNoGallery_start_char );
 387                         }
 388                         $r .= $this->getSectionPagingLinks( 'file' );
 389                         $r .= "\n</div>";
 390                 }
 391                 return $r;
 392         }
 393
 394         /**
 395          * Get the paging links for a section (subcats/pages/files), to go at the top and bottom
 396          * of the output.
 397          *
 398          * @param $type String: 'page', 'subcat', or 'file'
 399          * @return String: HTML output, possibly empty if there are no other pages
 400          */
 401         private function getSectionPagingLinks( $type ) {
 402                 if ( $this->until[$type] !== null ) {
 403                         return $this->pagingLinks( $this->nextPage[$type], $this->until[$type], $type );
 404                 } elseif ( $this->nextPage[$type] !== null || $this->from[$type] !== null ) {
 405                         return $this->pagingLinks( $this->from[$type], $this->nextPage[$type], $type );
 406                 } else {
 407                         return '';
 408                 }
 409         }
 410
 411         function getCategoryBottom() {
 412                 return '';
 413         }
 414
 415         /**
 416          * Format a list of articles chunked by letter, either as a
 417          * bullet list or a columnar format, depending on the length.
 418          *
 419          * @param $articles Array
 420          * @param $articles_start_char Array
 421          * @param $cutoff Int
 422          * @return String
 423          * @private
 424          */
 425         function formatList( $articles, $articles_start_char, $cutoff = 6 ) {
 426                 $list = '';
 427                 if ( count ( $articles ) > $cutoff ) {
 428                         $list = self::columnList( $articles, $articles_start_char );
 429                 } elseif ( count( $articles ) > 0 ) {
 430                         // for short lists of articles in categories.
 431                         $list = self::shortList( $articles, $articles_start_char );
 432                 }
 433
 434                 $pageLang = $this->title->getPageLanguage();
 435                 $attribs = array( 'lang' => $pageLang->getCode(), 'dir' => $pageLang->getDir(),
 436                         'class' => 'mw-content-'.$pageLang->getDir() );
 437                 $list = Html::rawElement( 'div', $attribs, $list );
 438
 439                 return $list;
 440         }
 441
 442         /**
 443          * Format a list of articles chunked by letter in a three-column
 444          * list, ordered vertically.
 445          *
 446          * TODO: Take the headers into account when creating columns, so they're
 447          * more visually equal.
 448          *
 449          * More distant TODO: Scrap this and use CSS columns, whenever IE finally
 450          * supports those.
 451          *
 452          * @param $articles Array
 453          * @param $articles_start_char Array
 454          * @return String
 455          * @private
 456          */
 457         static function columnList( $articles, $articles_start_char ) {
 458                 $columns = array_combine( $articles, $articles_start_char );
 459                 # Split into three columns
 460                 $columns = array_chunk( $columns, ceil( count( $columns ) / 3 ), true /* preserve keys */ );
 461
 462                 $ret = '<table width="100%"><tr valign="top"><td>';
 463                 $prevchar = null;
 464
 465                 foreach ( $columns as $column ) {
 466                         $colContents = array();
 467
 468                         # Kind of like array_flip() here, but we keep duplicates in an
 469                         # array instead of dropping them.
 470                         foreach ( $column as $article => $char ) {
 471                                 if ( !isset( $colContents[$char] ) ) {
 472                                         $colContents[$char] = array();
 473                                 }
 474                                 $colContents[$char][] = $article;
 475                         }
 476
 477                         $first = true;
 478                         foreach ( $colContents as $char => $articles ) {
 479                                 $ret .= '<h3>' . htmlspecialchars( $char );
 480                                 if ( $first && $char === $prevchar ) {
 481                                         # We're continuing a previous chunk at the top of a new
 482                                         # column, so add " cont." after the letter.
 483                                         $ret .= ' ' . wfMsgHtml( 'listingcontinuesabbrev' );
 484                                 }
 485                                 $ret .= "</h3>\n";
 486
 487                                 $ret .= '<ul><li>';
 488                                 $ret .= implode( "</li>\n<li>", $articles );
 489                                 $ret .= '</li></ul>';
 490
 491                                 $first = false;
 492                                 $prevchar = $char;
 493                         }
 494
 495                         $ret .= "</td>\n<td>";
 496                 }
 497
 498                 $ret .= '</td></tr></table>';
 499                 return $ret;
 500         }
 501
 502         /**
 503          * Format a list of articles chunked by letter in a bullet list.
 504          * @param $articles Array
 505          * @param $articles_start_char Array
 506          * @return String
 507          * @private
 508          */
 509         static function shortList( $articles, $articles_start_char ) {
 510                 $r = '<h3>' . htmlspecialchars( $articles_start_char[0] ) . "</h3>\n";
 511                 $r .= '<ul><li>' . $articles[0] . '</li>';
 512                 for ( $index = 1; $index < count( $articles ); $index++ ) {
 513                         if ( $articles_start_char[$index] != $articles_start_char[$index - 1] ) {
 514                                 $r .= "</ul><h3>" . htmlspecialchars( $articles_start_char[$index] ) . "</h3>\n<ul>";
 515                         }
 516
 517                         $r .= "<li>{$articles[$index]}</li>";
 518                 }
 519                 $r .= '</ul>';
 520                 return $r;
 521         }
 522
 523         /**
 524          * Create paging links, as a helper method to getSectionPagingLinks().
 525          *
 526          * @param $first String The 'until' parameter for the generated URL
 527          * @param $last String The 'from' parameter for the genererated URL
 528          * @param $type String A prefix for parameters, 'page' or 'subcat' or
 529          *     'file'
 530          * @return String HTML
 531          */
 532         private function pagingLinks( $first, $last, $type = '' ) {
 533                 $prevLink = wfMessage( 'prevn' )->numParams( $this->limit )->escaped();
 534
 535                 if ( $first != '' ) {
 536                         $prevQuery = $this->query;
 537                         $prevQuery["{$type}until"] = $first;
 538                         unset( $prevQuery["{$type}from"] );
 539                         $prevLink = Linker::linkKnown(
 540                                 $this->addFragmentToTitle( $this->title, $type ),
 541                                 $prevLink,
 542                                 array(),
 543                                 $prevQuery
 544                         );
 545                 }
 546
 547                 $nextLink = wfMessage( 'nextn' )->numParams( $this->limit )->escaped();
 548
 549                 if ( $last != '' ) {
 550                         $lastQuery = $this->query;
 551                         $lastQuery["{$type}from"] = $last;
 552                         unset( $lastQuery["{$type}until"] );
 553                         $nextLink = Linker::linkKnown(
 554                                 $this->addFragmentToTitle( $this->title, $type ),
 555                                 $nextLink,
 556                                 array(),
 557                                 $lastQuery
 558                         );
 559                 }
 560
 561                 return "($prevLink) ($nextLink)";
 562         }
 563
 564         /**
 565          * Takes a title, and adds the fragment identifier that
 566          * corresponds to the correct segment of the category.
 567          *
 568          * @param Title $title: The title (usually $this->title)
 569          * @param String $section: Which section
 570          */
 571         private function addFragmentToTitle( $title, $section ) {
 572                 switch ( $section ) {
 573                         case 'page':
 574                                 $fragment = 'mw-pages';
 575                                 break;
 576                         case 'subcat':
 577                                 $fragment = 'mw-subcategories';
 578                                 break;
 579                         case 'file':
 580                                 $fragment = 'mw-category-media';
 581                                 break;
 582                         default:
 583                                 throw new MWException( __METHOD__ .
 584                                         " Invalid section $section." );
 585                 }
 586
 587                 return Title::makeTitle( $title->getNamespace(),
 588                         $title->getDBkey(), $fragment );
 589         }
 590         /**
 591          * What to do if the category table conflicts with the number of results
 592          * returned?  This function says what. Each type is considered independently
 593          * of the other types.
 594          *
 595          * Note for grepping: uses the messages category-article-count,
 596          * category-article-count-limited, category-subcat-count,
 597          * category-subcat-count-limited, category-file-count,
 598          * category-file-count-limited.
 599          *
 600          * @param $rescnt Int: The number of items returned by our database query.
 601          * @param $dbcnt Int: The number of items according to the category table.
 602          * @param $type String: 'subcat', 'article', or 'file'
 603          * @return String: A message giving the number of items, to output to HTML.
 604          */
 605         private function getCountMessage( $rescnt, $dbcnt, $type ) {
 606                 # There are three cases:
 607                 #   1) The category table figure seems sane.  It might be wrong, but
 608                 #      we can't do anything about it if we don't recalculate it on ev-
 609                 #      ery category view.
 610                 #   2) The category table figure isn't sane, like it's smaller than the
 611                 #      number of actual results, *but* the number of results is less
 612                 #      than $this->limit and there's no offset.  In this case we still
 613                 #      know the right figure.
 614                 #   3) We have no idea.
 615
 616                 # Check if there's a "from" or "until" for anything
 617
 618                 // This is a little ugly, but we seem to use different names
 619                 // for the paging types then for the messages.
 620                 if ( $type === 'article' ) {
 621                         $pagingType = 'page';
 622                 } else {
 623                         $pagingType = $type;
 624                 }
 625
 626                 $fromOrUntil = false;
 627                 if ( $this->from[$pagingType] !== null || $this->until[$pagingType] !== null ) {
 628                         $fromOrUntil = true;
 629                 }
 630
 631                 if ( $dbcnt == $rescnt || ( ( $rescnt == $this->limit || $fromOrUntil )
 632                         && $dbcnt > $rescnt ) ) {
 633                         # Case 1: seems sane.
 634                         $totalcnt = $dbcnt;
 635                 } elseif ( $rescnt < $this->limit && !$fromOrUntil ) {
 636                         # Case 2: not sane, but salvageable.  Use the number of results.
 637                         # Since there are fewer than 200, we can also take this opportunity
 638                         # to refresh the incorrect category table entry -- which should be
 639                         # quick due to the small number of entries.
 640                         $totalcnt = $rescnt;
 641                         $this->cat->refreshCounts();
 642                 } else {
 643                         # Case 3: hopeless.  Don't give a total count at all.
 644                         return wfMessage( "category-$type-count-limited" )->numParams( $rescnt )->parseAsBlock();
 645                 }
 646                 return wfMessage( "category-$type-count" )->numParams( $rescnt, $totalcnt )->parseAsBlock();
 647         }
 648 }