includes/SpecialWhatlinkshere.php

   1 <?php
   2 /**
   3  *
   4  * @package MediaWiki
   5  * @subpackage SpecialPage
   6  */
   7
   8 /**
   9  * Entry point
  10  * @param string $par An article name ??
  11  */
  12 function wfSpecialWhatlinkshere($par = NULL) {
  13         global $wgUser, $wgOut, $wgRequest;
  14         $fname = 'wfSpecialWhatlinkshere';
  15
  16         $target = isset($par) ? $par : $wgRequest->getVal( 'target' );
  17         list( $limit, $offset ) = $wgRequest->getLimitOffset();
  18
  19         if (is_null($target)) {
  20                 $wgOut->errorpage( 'notargettitle', 'notargettext' );
  21                 return;
  22         }
  23
  24         $nt = Title::newFromURL( $target );
  25         if( !$nt ) {
  26                 $wgOut->errorpage( 'notargettitle', 'notargettext' );
  27                 return;
  28         }
  29         $wgOut->setPagetitle( $nt->getPrefixedText() );
  30         $wgOut->setSubtitle( wfMsg( 'linklistsub' ) );
  31
  32         $sk = $wgUser->getSkin();
  33         $isredir = ' (' . wfMsg( 'isredirect' ) . ")\n";
  34
  35         $wgOut->addHTML('&lt; '.$sk->makeKnownLinkObj($nt, '', 'redirect=no' )."<br />\n");
  36
  37         $specialTitle = Title::makeTitle( NS_SPECIAL, 'Whatlinkshere' );
  38         $wgOut->addHTML( wfViewPrevNext( $offset, $limit, $specialTitle, 'target=' . urlencode( $target ) ) );
  39
  40         wfShowIndirectLinks( 0, $nt, $limit, $offset );
  41         $wgOut->addHTML( wfViewPrevNext( $offset, $limit, $specialTitle, 'target=' . urlencode( $target ) ) );
  42 }
  43
  44 /**
  45  * @param int   $level
  46  * @param Title $target
  47  * @param int   $limit
  48  * @param int   $offset
  49  * @access private
  50  */
  51 function wfShowIndirectLinks( $level, $target, $limit, $offset = 0 ) {
  52         global $wgOut, $wgUser;
  53         $fname = 'wfShowIndirectLinks';
  54
  55         $dbr =& wfGetDB( DB_READ );
  56
  57         if ( $level == 0 ) {
  58                 $limitSql = $dbr->limitResult( $limit, $offset );
  59         } else {
  60                 $limitSql = "LIMIT $limit";
  61         }
  62
  63         $res = $dbr->select( array( 'pagelinks', 'page' ),
  64                 array( 'page_id', 'page_namespace', 'page_title', 'page_is_redirect' ),
  65                 array(
  66                         'pl_from=page_id',
  67                         'pl_namespace' => $target->getNamespace(),
  68                         'pl_title'     => $target->getDbKey() ),
  69                 $fname,
  70                 $limitSql );
  71
  72         if ( 0 == $dbr->numRows( $res ) ) {
  73                 if ( 0 == $level ) {
  74                         $wgOut->addHTML( wfMsg( 'nolinkshere' ) );
  75                 }
  76                 return;
  77         }
  78         if ( 0 == $level ) {
  79                 $wgOut->addHTML( wfMsg( 'linkshere' ) );
  80         }
  81         $sk = $wgUser->getSkin();
  82         $isredir = ' (' . wfMsg( 'isredirect' ) . ")\n";
  83
  84         $wgOut->addHTML( '<ul>' );
  85         while ( $row = $dbr->fetchObject( $res ) ) {
  86                 $nt = Title::makeTitle( $row->page_namespace, $row->page_title );
  87
  88                 if ( $row->page_is_redirect ) {
  89                         $extra = 'redirect=no';
  90                 } else {
  91                         $extra = '';
  92                 }
  93
  94                 $link = $sk->makeKnownLinkObj( $nt, '', $extra );
  95                 $wgOut->addHTML( '<li>'.$link );
  96
  97                 if ( $row->page_is_redirect ) {
  98                         $wgOut->addHTML( $isredir );
  99                         if ( $level < 2 ) {
 100                                 wfShowIndirectLinks( $level + 1, $nt, 500 );
 101                         }
 102                 }
 103                 $wgOut->addHTML( "</li>\n" );
 104         }
 105         $wgOut->addHTML( "</ul>\n" );
 106 }
 107
 108 ?>