includes/SpecialCategories.php

   1 <?php
   2 /**
   3  * @file
   4  * @ingroup SpecialPage
   5  */
   6
   7 function wfSpecialCategories() {
   8         global $wgOut, $wgRequest;
   9
  10         $cap = new CategoryPager();
  11         $wgOut->addHTML(
  12                 wfMsgExt( 'categoriespagetext', array( 'parse' ) ) .
  13                 $cap->getStartForm( str_replace( '_', ' ', $wgRequest->getVal( 'offset' ) ) ) .
  14                 $cap->getNavigationBar() .
  15                 '<ul>' . $cap->getBody() . '</ul>' .
  16                 $cap->getNavigationBar()
  17         );
  18 }
  19
  20 /**
  21  * TODO: Allow sorting by count.  We need to have a unique index to do this
  22  * properly.
  23  *
  24  * @ingroup SpecialPage Pager
  25  */
  26 class CategoryPager extends AlphabeticPager {
  27         function getQueryInfo() {
  28                 global $wgRequest;
  29                 return array(
  30                         'tables' => array( 'category' ),
  31                         'fields' => array( 'cat_title','cat_pages' ),
  32                         'conds' => array( 'cat_pages > 0' ),
  33                         'options' => array( 'USE INDEX' => 'cat_title' ),
  34                 );
  35         }
  36
  37         function getIndexField() {
  38 #               return array( 'abc' => 'cat_title', 'count' => 'cat_pages' );
  39                 return 'cat_title';
  40         }
  41
  42 #       protected function getOrderTypeMessages() {
  43 #               return array( 'abc' => 'special-categories-sort-abc',
  44 #                       'count' => 'special-categories-sort-count' );
  45 #       }
  46
  47         protected function getDefaultDirections() {
  48 #               return array( 'abc' => false, 'count' => true );
  49                 return false;
  50         }
  51
  52         /* Override getBody to apply LinksBatch on resultset before actually outputting anything. */
  53         public function getBody() {
  54                 if (!$this->mQueryDone) {
  55                         $this->doQuery();
  56                 }
  57                 $batch = new LinkBatch;
  58
  59                 $this->mResult->rewind();
  60
  61                 while ( $row = $this->mResult->fetchObject() ) {
  62                         $batch->addObj( Title::makeTitleSafe( NS_CATEGORY, $row->cat_title ) );
  63                 }
  64                 $batch->execute();
  65                 $this->mResult->rewind();
  66                 return parent::getBody();
  67         }
  68
  69         function formatRow($result) {
  70                 global $wgLang;
  71                 $title = Title::makeTitle( NS_CATEGORY, $result->cat_title );
  72                 $titleText = $this->getSkin()->makeLinkObj( $title, htmlspecialchars( $title->getText() ) );
  73                 $count = wfMsgExt( 'nmembers', array( 'parsemag', 'escape' ),
  74                                 $wgLang->formatNum( $result->cat_pages ) );
  75                 return Xml::tags('li', null, "$titleText ($count)" ) . "\n";
  76         }
  77
  78         public function getStartForm( $from='' ) {
  79                 global $wgScript;
  80                 $t = SpecialPage::getTitleFor( 'Categories' );
  81
  82                 return
  83                         Xml::tags( 'form', array( 'method' => 'get', 'action' => $wgScript ),
  84                                 Xml::hidden( 'title', $t->getPrefixedText() ) .
  85                                 Xml::fieldset( wfMsg( 'categories' ),
  86                                         Xml::inputLabel( wfMsg( 'categoriesfrom' ),
  87                                                 'offset', 'offset', 20, $from ) .
  88                                         ' ' .
  89                                         Xml::submitButton( wfMsg( 'allpagessubmit' ) ) ) );
  90         }
  91 }