Use local context instead of global variables

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

diff --git a/includes/specials/SpecialUnusedcategories.php b/includes/specials/SpecialUnusedcategories.php
index ced32d9..ac17b87 100644 (file)
--- a/includes/specials/SpecialUnusedcategories.php
+++ b/includes/specials/SpecialUnusedcategories.php
@@ -1,5 +1,22 @@
 <?php
 /**
+ * Implements Special:Unusedcategories
+ *
+ * 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
  */
@@ -11,38 +28,30 @@ class UnusedCategoriesPage extends QueryPage {
 
        function isExpensive() { return true; }
 
-       function getName() {
-               return 'Unusedcategories';
+       function __construct( $name = 'Unusedcategories' ) {
+               parent::__construct( $name );
        }
 
        function getPageHeader() {
                return wfMsgExt( 'unusedcategoriestext', array( 'parse' ) );
        }
 
-       function getSQL() {
-               $NScat = NS_CATEGORY;
-               $dbr = wfGetDB( DB_SLAVE );
-               list( $categorylinks, $page, $page_props ) = $dbr->tableNamesN( 'categorylinks', 'page', 'page_props' );
-               return "SELECT 'Unusedcategories' as type,
-                               {$NScat} as namespace, page_title as title, page_title as value
-                               FROM $page
-                               LEFT JOIN $categorylinks ON page_title=cl_to
-                               LEFT JOIN $page_props ON pp_page=page_id
-                               WHERE cl_from IS NULL
-                               AND page_namespace = {$NScat}
-                               AND page_is_redirect = 0
-                               AND (pp_propname IS NULL OR pp_propname != 'ignoreunused')";
+       function getQueryInfo() {
+               return array (
+                       'tables' => array ( 'page', 'categorylinks' ),
+                       'fields' => array ( 'page_namespace AS namespace',
+                                       'page_title AS title',
+                                       'page_title AS value' ),
+                       'conds' => array ( 'cl_from IS NULL',
+                                       'page_namespace' => NS_CATEGORY,
+                                       'page_is_redirect' => 0 ),
+                       'join_conds' => array ( 'categorylinks' => array (
+                                       'LEFT JOIN', 'cl_to = page_title' ) )
+               );
        }
 
        function formatResult( $skin, $result ) {
                $title = Title::makeTitle( NS_CATEGORY, $result->title );
-               return $skin->makeLinkObj( $title, $title->getText() );
+               return $skin->link( $title, $title->getText() );
        }
 }
-
-/** constructor */
-function wfSpecialUnusedCategories() {
-       list( $limit, $offset ) = wfCheckLimits();
-       $uc = new UnusedCategoriesPage();
-       return $uc->doQuery( $offset, $limit );
-}