[Summary view] [Print] [Text view]

   1  <?php
   2  /**
   3   * Implements Special:Unusedcategories
   4   *
   5   * This program is free software; you can redistribute it and/or modify
   6   * it under the terms of the GNU General Public License as published by
   7   * the Free Software Foundation; either version 2 of the License, or
   8   * (at your option) any later version.
   9   *
  10   * This program is distributed in the hope that it will be useful,
  11   * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13   * GNU General Public License for more details.
  14   *
  15   * You should have received a copy of the GNU General Public License along
  16   * with this program; if not, write to the Free Software Foundation, Inc.,
  17   * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18   * http://www.gnu.org/copyleft/gpl.html
  19   *
  20   * @file
  21   * @ingroup SpecialPage
  22   */
  23  
  24  /**
  25   * @ingroup SpecialPage
  26   */
  27  class UnusedCategoriesPage extends QueryPage {
  28  	function __construct( $name = 'Unusedcategories' ) {
  29          parent::__construct( $name );
  30      }
  31  
  32  	function isExpensive() {
  33          return true;
  34      }
  35  
  36  	function getPageHeader() {
  37          return $this->msg( 'unusedcategoriestext' )->parseAsBlock();
  38      }
  39  
  40  	function getQueryInfo() {
  41          return array(
  42              'tables' => array( 'page', 'categorylinks' ),
  43              'fields' => array(
  44                  'namespace' => 'page_namespace',
  45                  'title' => 'page_title',
  46                  'value' => 'page_title'
  47              ),
  48              'conds' => array(
  49                  'cl_from IS NULL',
  50                  'page_namespace' => NS_CATEGORY,
  51                  'page_is_redirect' => 0
  52              ),
  53              'join_conds' => array( 'categorylinks' => array( 'LEFT JOIN', 'cl_to = page_title' ) )
  54          );
  55      }
  56  
  57      /**
  58       * A should come before Z (bug 30907)
  59       * @return bool
  60       */
  61  	function sortDescending() {
  62          return false;
  63      }
  64  
  65      /**
  66       * @param Skin $skin
  67       * @param object $result Result row
  68       * @return string
  69       */
  70  	function formatResult( $skin, $result ) {
  71          $title = Title::makeTitle( NS_CATEGORY, $result->title );
  72  
  73          return Linker::link( $title, htmlspecialchars( $title->getText() ) );
  74      }
  75  
  76  	protected function getGroupName() {
  77          return 'maintenance';
  78      }
  79  }