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