includes/specials/SpecialMostlinkedtemplates.php

   1 <?php
   2 /**
   3  * Implements Special:Mostlinkedtemplates
   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  * @author Rob Church <robchur@gmail.com>
  23  */
  24
  25 /**
  26  * Special page lists templates with a large number of
  27  * transclusion links, i.e. "most used" templates
  28  *
  29  * @ingroup SpecialPage
  30  */
  31 class MostlinkedTemplatesPage extends QueryPage {
  32
  33         function __construct( $name = 'Mostlinkedtemplates' ) {
  34                 parent::__construct( $name );
  35         }
  36
  37         /**
  38          * Is this report expensive, i.e should it be cached?
  39          *
  40          * @return Boolean
  41          */
  42         public function isExpensive() {
  43                 return true;
  44         }
  45
  46         /**
  47          * Is there a feed available?
  48          *
  49          * @return Boolean
  50          */
  51         public function isSyndicated() {
  52                 return false;
  53         }
  54
  55         /**
  56          * Sort the results in descending order?
  57          *
  58          * @return Boolean
  59          */
  60         public function sortDescending() {
  61                 return true;
  62         }
  63
  64         public function getQueryInfo() {
  65                 return array (
  66                         'tables' => array ( 'templatelinks' ),
  67                         'fields' => array ( 'tl_namespace AS namespace',
  68                                         'tl_title AS title',
  69                                         'COUNT(*) AS value' ),
  70                         'conds' => array ( 'tl_namespace' => NS_TEMPLATE ),
  71                         'options' => array( 'GROUP BY' => 'tl_title' )
  72                 );
  73         }
  74
  75         /**
  76          * Pre-cache page existence to speed up link generation
  77          *
  78          * @param $db Database connection
  79          * @param $res ResultWrapper
  80          */
  81         public function preprocessResults( $db, $res ) {
  82                 $batch = new LinkBatch();
  83                 foreach ( $res as $row ) {
  84                         $batch->add( $row->namespace, $row->title );
  85                 }
  86                 $batch->execute();
  87                 if( $db->numRows( $res ) > 0 )
  88                         $db->dataSeek( $res, 0 );
  89         }
  90
  91         /**
  92          * Format a result row
  93          *
  94          * @param $skin Skin to use for UI elements
  95          * @param $result Result row
  96          * @return String
  97          */
  98         public function formatResult( $skin, $result ) {
  99                 $title = Title::makeTitle( $result->namespace, $result->title );
 100
 101                 return wfSpecialList(
 102                         $skin->link( $title ),
 103                         $this->makeWlhLink( $title, $skin, $result )
 104                 );
 105         }
 106
 107         /**
 108          * Make a "what links here" link for a given title
 109          *
 110          * @param $title Title to make the link for
 111          * @param $skin Skin to use
 112          * @param $result Result row
 113          * @return String
 114          */
 115         private function makeWlhLink( $title, $skin, $result ) {
 116                 global $wgLang;
 117                 $wlh = SpecialPage::getTitleFor( 'Whatlinkshere' );
 118                 $label = wfMsgExt( 'ntransclusions', array( 'parsemag', 'escape' ),
 119                         $wgLang->formatNum( $result->value ) );
 120                 return $skin->link( $wlh, $label, array(), array( 'target' => $title->getPrefixedText() ) );
 121         }
 122 }
 123