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         $wgOut->allowClickjacking();
  16         $cap = new CategoryPager( $from );
  17         $cap->doQuery();
  18         $wgOut->addHTML(
  19                 XML::openElement( 'div', array('class' => 'mw-spcontent') ) .
  20                 wfMsgExt( 'categoriespagetext', array( 'parse' ), $cap->getNumRows() ) .
  21                 $cap->getStartForm( $from ) .
  22                 $cap->getNavigationBar() .
  23                 '<ul>' . $cap->getBody() . '</ul>' .
  24                 $cap->getNavigationBar() .
  25                 XML::closeElement( 'div' )
  26         );
  27 }
  28
  29 /**
  30  * TODO: Allow sorting by count.  We need to have a unique index to do this
  31  * properly.
  32  *
  33  * @ingroup SpecialPage Pager
  34  */
  35 class CategoryPager extends AlphabeticPager {
  36         function __construct( $from ) {
  37                 parent::__construct();
  38                 $from = str_replace( ' ', '_', $from );
  39                 if( $from !== '' ) {
  40                         $from = Title::capitalize( $from, NS_CATEGORY );
  41                         $this->mOffset = $from;
  42                 }
  43         }
  44
  45         function getQueryInfo() {
  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                 return $this->mDefaultQuery;
  63         }
  64 #       protected function getOrderTypeMessages() {
  65 #               return array( 'abc' => 'special-categories-sort-abc',
  66 #                       'count' => 'special-categories-sort-count' );
  67 #       }
  68
  69         protected function getDefaultDirections() {
  70 #               return array( 'abc' => false, 'count' => true );
  71                 return false;
  72         }
  73
  74         /* Override getBody to apply LinksBatch on resultset before actually outputting anything. */
  75         public function getBody() {
  76                 $batch = new LinkBatch;
  77
  78                 $this->mResult->rewind();
  79
  80                 while ( $row = $this->mResult->fetchObject() ) {
  81                         $batch->addObj( Title::makeTitleSafe( NS_CATEGORY, $row->cat_title ) );
  82                 }
  83                 $batch->execute();
  84                 $this->mResult->rewind();
  85                 return parent::getBody();
  86         }
  87
  88         function formatRow($result) {
  89                 global $wgLang;
  90                 $title = Title::makeTitle( NS_CATEGORY, $result->cat_title );
  91                 $titleText = $this->getSkin()->link( $title, htmlspecialchars( $title->getText() ) );
  92                 $count = wfMsgExt( 'nmembers', array( 'parsemag', 'escape' ),
  93                                 $wgLang->formatNum( $result->cat_pages ) );
  94                 return Xml::tags('li', null, "$titleText ($count)" ) . "\n";
  95         }
  96
  97         public function getStartForm( $from ) {
  98                 global $wgScript;
  99                 $t = SpecialPage::getTitleFor( 'Categories' );
 100
 101                 return
 102                         Xml::tags( 'form', array( 'method' => 'get', 'action' => $wgScript ),
 103                                 Xml::hidden( 'title', $t->getPrefixedText() ) .
 104                                 Xml::fieldset( wfMsg( 'categories' ),
 105                                         Xml::inputLabel( wfMsg( 'categoriesfrom' ),
 106                                                 'from', 'from', 20, $from ) .
 107                                         ' ' .
 108                                         Xml::submitButton( wfMsg( 'allpagessubmit' ) ) ) );
 109         }
 110 }