includes/specials/SpecialCategories.php

   1 <?php
   2 /**
   3  * @file
   4  * @ingroup SpecialPage
   5  */
   6
   7 function wfSpecialCategories( $par=null ) {
   8         global $wgOut, $wgRequest;
   9
  10         if( $par == '' ) {
  11                 $from = $wgRequest->getText( 'from' );
  12         } else {
  13                 $from = $par;
  14         }
  15         $cap = new CategoryPager( $from );
  16         $wgOut->addHTML(
  17                 XML::openElement( 'div', array('class' => 'mw-spcontent') ) .
  18                 wfMsgExt( 'categoriespagetext', array( 'parse' ) ) .
  19                 $cap->getStartForm( $from ) .
  20                 $cap->getNavigationBar() .
  21                 '<ul>' . $cap->getBody() . '</ul>' .
  22                 $cap->getNavigationBar() .
  23                 XML::closeElement( 'div' )
  24         );
  25 }
  26
  27 /**
  28  * TODO: Allow sorting by count.  We need to have a unique index to do this
  29  * properly.
  30  *
  31  * @ingroup SpecialPage Pager
  32  */
  33 class CategoryPager extends AlphabeticPager {
  34         function __construct( $from ) {
  35                 parent::__construct();
  36                 $from = str_replace( ' ', '_', $from );
  37                 if( $from !== '' ) {
  38                         global $wgCapitalLinks, $wgContLang;
  39                         if( $wgCapitalLinks ) {
  40                                 $from = $wgContLang->ucfirst( $from );
  41                         }
  42                         $this->mOffset = $from;
  43                 }
  44         }
  45
  46         function getQueryInfo() {
  47                 global $wgRequest;
  48                 return array(
  49                         'tables' => array( 'category' ),
  50                         'fields' => array( 'cat_title','cat_pages' ),
  51                         'conds' => array( 'cat_pages > 0' ),
  52                         'options' => array( 'USE INDEX' => 'cat_title' ),
  53                 );
  54         }
  55
  56         function getIndexField() {
  57 #               return array( 'abc' => 'cat_title', 'count' => 'cat_pages' );
  58                 return 'cat_title';
  59         }
  60
  61         function getDefaultQuery() {
  62                 parent::getDefaultQuery();
  63                 unset( $this->mDefaultQuery['from'] );
  64                 return $this->mDefaultQuery;
  65         }
  66 #       protected function getOrderTypeMessages() {
  67 #               return array( 'abc' => 'special-categories-sort-abc',
  68 #                       'count' => 'special-categories-sort-count' );
  69 #       }
  70
  71         protected function getDefaultDirections() {
  72 #               return array( 'abc' => false, 'count' => true );
  73                 return false;
  74         }
  75
  76         /* Override getBody to apply LinksBatch on resultset before actually outputting anything. */
  77         public function getBody() {
  78                 if (!$this->mQueryDone) {
  79                         $this->doQuery();
  80                 }
  81                 $batch = new LinkBatch;
  82
  83                 $this->mResult->rewind();
  84
  85                 while ( $row = $this->mResult->fetchObject() ) {
  86                         $batch->addObj( Title::makeTitleSafe( NS_CATEGORY, $row->cat_title ) );
  87                 }
  88                 $batch->execute();
  89                 $this->mResult->rewind();
  90                 return parent::getBody();
  91         }
  92
  93         function formatRow($result) {
  94                 global $wgLang;
  95                 $title = Title::makeTitle( NS_CATEGORY, $result->cat_title );
  96                 $titleText = $this->getSkin()->makeLinkObj( $title, htmlspecialchars( $title->getText() ) );
  97                 $count = wfMsgExt( 'nmembers', array( 'parsemag', 'escape' ),
  98                                 $wgLang->formatNum( $result->cat_pages ) );
  99                 return Xml::tags('li', null, "$titleText ($count)" ) . "\n";
 100         }
 101
 102         public function getStartForm( $from ) {
 103                 global $wgScript;
 104                 $t = SpecialPage::getTitleFor( 'Categories' );
 105
 106                 return
 107                         Xml::tags( 'form', array( 'method' => 'get', 'action' => $wgScript ),
 108                                 Xml::hidden( 'title', $t->getPrefixedText() ) .
 109                                 Xml::fieldset( wfMsg( 'categories' ),
 110                                         Xml::inputLabel( wfMsg( 'categoriesfrom' ),
 111                                                 'from', 'from', 20, $from ) .
 112                                         ' ' .
 113                                         Xml::submitButton( wfMsg( 'allpagessubmit' ) ) ) );
 114         }
 115 }