Merge "SpecialTrackingCategories: Read from the extension registry"

[lhc/web/wiklou.git] / includes / specials / SpecialMostcategories.php

diff --git a/includes/specials/SpecialMostcategories.php b/includes/specials/SpecialMostcategories.php
index e681099..c70bbdb 100644 (file)
--- a/includes/specials/SpecialMostcategories.php
+++ b/includes/specials/SpecialMostcategories.php
@@ -1,58 +1,120 @@
 <?php
 /**
+ * Implements Special:Mostcategories
+ *
+ * Copyright © 2005 Ævar Arnfjörð Bjarmason
+ *
+ * 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>
- * @copyright Copyright © 2005, Ævar Arnfjörð Bjarmason
- * @license http://www.gnu.org/copyleft/gpl.html GNU General Public License 2.0 or later
  */
 
 /**
- * implements Special:Mostcategories
+ * A special page that list pages that have highest category count
+ *
  * @ingroup SpecialPage
  */
 class MostcategoriesPage extends QueryPage {
+       function __construct( $name = 'Mostcategories' ) {
+               parent::__construct( $name );
+       }
+
+       function isExpensive() {
+               return true;
+       }
+
+       function isSyndicated() {
+               return false;
+       }
 
-       function getName() { return 'Mostcategories'; }
-       function isExpensive() { return true; }
-       function isSyndicated() { return false; }
-
-       function getSQL() {
-               $dbr = wfGetDB( DB_SLAVE );
-               list( $categorylinks, $page) = $dbr->tableNamesN( 'categorylinks', 'page' );
-               return
-                       "
-                       SELECT
-                               'Mostcategories' as type,
-                               page_namespace as namespace,
-                               page_title as title,
-                               COUNT(*) as value
-                       FROM $categorylinks
-                       LEFT JOIN $page ON cl_from = page_id
-                       WHERE page_namespace = " . NS_MAIN . "
-                       GROUP BY page_namespace, page_title
-                       HAVING COUNT(*) > 1
-                       ";
+       function getQueryInfo() {
+               return array(
+                       'tables' => array( 'categorylinks', 'page' ),
+                       'fields' => array(
+                               'namespace' => 'page_namespace',
+                               'title' => 'page_title',
+                               'value' => 'COUNT(*)'
+                       ),
+                       'conds' => array( 'page_namespace' => MWNamespace::getContentNamespaces() ),
+                       'options' => array(
+                               'HAVING' => 'COUNT(*) > 1',
+                               'GROUP BY' => array( 'page_namespace', 'page_title' )
+                       ),
+                       'join_conds' => array(
+                               'page' => array(
+                                       'LEFT JOIN',
+                                       'page_id = cl_from'
+                               )
+                       )
+               );
        }
 
+       /**
+        * @param IDatabase $db
+        * @param ResultWrapper $res
+        */
+       function preprocessResults( $db, $res ) {
+               # There's no point doing a batch check if we aren't caching results;
+               # the page must exist for it to have been pulled out of the table
+               if ( !$this->isCached() || !$res->numRows() ) {
+                       return;
+               }
+
+               $batch = new LinkBatch();
+               foreach ( $res as $row ) {
+                       $batch->add( $row->namespace, $row->title );
+               }
+               $batch->execute();
+
+               $res->seek( 0 );
+       }
+
+       /**
+        * @param Skin $skin
+        * @param object $result Result row
+        * @return string
+        */
        function formatResult( $skin, $result ) {
-               global $wgLang;
                $title = Title::makeTitleSafe( $result->namespace, $result->title );
-               if ( !$title instanceof Title ) { throw new MWException('Invalid title in database'); }
-               $count = wfMsgExt( 'ncategories', array( 'parsemag', 'escape' ), $wgLang->formatNum( $result->value ) );
-               $link = $skin->makeKnownLinkObj( $title, $title->getText() );
-               return wfSpecialList( $link, $count );
-       }
-}
+               if ( !$title ) {
+                       return Html::element(
+                               'span',
+                               array( 'class' => 'mw-invalidtitle' ),
+                               Linker::getInvalidTitleDescription(
+                                       $this->getContext(),
+                                       $result->namespace,
+                                       $result->title
+                               )
+                       );
+               }
 
-/**
- * constructor
- */
-function wfSpecialMostcategories() {
-       list( $limit, $offset ) = wfCheckLimits();
+               if ( $this->isCached() ) {
+                       $link = Linker::link( $title );
+               } else {
+                       $link = Linker::linkKnown( $title );
+               }
 
-       $wpp = new MostcategoriesPage();
+               $count = $this->msg( 'ncategories' )->numParams( $result->value )->escaped();
 
-       $wpp->doQuery( $offset, $limit );
+               return $this->getLanguage()->specialList( $link, $count );
+       }
+
+       protected function getGroupName() {
+               return 'highuse';
+       }
 }