<?php
+/**
+ *
+ * @package MediaWiki
+ * @subpackage SpecialPage
+ */
-function wfSpecialWhatlinkshere($par = NULL)
-{
- global $wgUser, $wgOut, $target;
- $fname = "wfSpecialWhatlinkshere";
+/**
+ * Entry point
+ * @param string $par An article name ??
+ */
+function wfSpecialWhatlinkshere($par = NULL) {
+ global $wgRequest;
+ $page = new WhatLinksHerePage( $wgRequest, $par );
+ $page->execute();
+}
- if($par) {
- $target = $par;
- } else {
- $target = $_REQUEST['target'] ;
- }
- if ( "" == $target ) {
- $wgOut->errorpage( "notargettitle", "notargettext" );
- return;
+class WhatLinksHerePage {
+ var $request, $par;
+ var $limit, $from, $dir, $target;
+ var $selfTitle, $skin;
+
+ function WhatLinksHerePage( &$request, $par = null ) {
+ global $wgUser;
+ $this->request =& $request;
+ $this->skin =& $wgUser->getSkin();
+ $this->par = $par;
}
- $nt = Title::newFromURL( $target );
- if( !$nt ) {
- $wgOut->errorpage( "notargettitle", "notargettext" );
- return;
+
+ function execute() {
+ global $wgOut;
+
+ $this->limit = min( $this->request->getInt( 'limit', 50 ), 5000 );
+ if ( $this->limit <= 0 ) {
+ $this->limit = 50;
+ }
+ $this->from = $this->request->getInt( 'from' );
+ $this->dir = $this->request->getText( 'dir', 'next' );
+ if ( $this->dir != 'prev' ) {
+ $this->dir = 'next';
+ }
+
+ $targetString = isset($this->par) ? $this->par : $this->request->getVal( 'target' );
+
+ if (is_null($targetString)) {
+ $wgOut->showErrorPage( 'notargettitle', 'notargettext' );
+ return;
+ }
+
+ $this->target = Title::newFromURL( $targetString );
+ if( !$this->target ) {
+ $wgOut->showErrorPage( 'notargettitle', 'notargettext' );
+ return;
+ }
+ $this->selfTitle = Title::makeTitleSafe( NS_SPECIAL,
+ 'Whatlinkshere/' . $this->target->getPrefixedDBkey() );
+ $wgOut->setPagetitle( $this->target->getPrefixedText() );
+ $wgOut->setSubtitle( wfMsg( 'linklistsub' ) );
+
+ $wgOut->addHTML( wfMsg( 'whatlinkshere-barrow' ) . ' ' .$this->skin->makeLinkObj($this->target, '', 'redirect=no' )."<br />\n");
+
+ $this->showIndirectLinks( 0, $this->target, $this->limit, $this->from, $this->dir );
}
- $wgOut->setPagetitle( $nt->getPrefixedText() );
- $wgOut->setSubtitle( wfMsg( "linklistsub" ) );
-
- $id = $nt->getArticleID();
- $sk = $wgUser->getSkin();
- $isredir = " (" . wfMsg( "isredirect" ) . ")\n";
-
- $wgOut->addHTML("< ".$sk->makeKnownLinkObj($nt, "", "redirect=no" )."<br/>\n");
-
- if ( 0 == $id ) {
- $sql = "SELECT cur_id,cur_namespace,cur_title,cur_is_redirect FROM brokenlinks,cur WHERE bl_to='" .
- wfStrencode( $nt->getPrefixedDBkey() ) . "' AND bl_from=cur_id LIMIT 500";
- $res = wfQuery( $sql, DB_READ, $fname );
-
- if ( 0 == wfNumRows( $res ) ) {
- $wgOut->addHTML( wfMsg( "nolinkshere" ) );
+
+ /**
+ * @param int $level Recursion level
+ * @param Title $target Target title
+ * @param int $limit Number of entries to display
+ * @param Title $from Display from this article ID
+ * @param string $dir 'next' or 'prev', whether $fromTitle is the start or end of the list
+ * @private
+ */
+ function showIndirectLinks( $level, $target, $limit, $from = 0, $dir = 'next' ) {
+ global $wgOut;
+ $fname = 'WhatLinksHerePage::showIndirectLinks';
+
+ $dbr =& wfGetDB( DB_READ );
+
+ // Some extra validation
+ $from = intval( $from );
+ if ( !$from && $dir == 'prev' ) {
+ // Before start? No make sense
+ $dir = 'next';
+ }
+
+ // Make the query
+ $plConds = array(
+ 'page_id=pl_from',
+ 'pl_namespace' => $target->getNamespace(),
+ 'pl_title' => $target->getDBkey(),
+ );
+
+ $tlConds = array(
+ 'page_id=tl_from',
+ 'tl_namespace' => $target->getNamespace(),
+ 'tl_title' => $target->getDBkey(),
+ );
+
+ if ( $from ) {
+ if ( 'prev' == $dir ) {
+ $offsetCond = "page_id < $from";
+ $options = array( 'ORDER BY page_id DESC' );
+ } else {
+ $offsetCond = "page_id >= $from";
+ $options = array( 'ORDER BY page_id' );
+ }
} else {
- $wgOut->addHTML( wfMsg( "linkshere" ) );
- $wgOut->addHTML( "\n<ul>" );
+ $offsetCond = false;
+ $options = array( 'ORDER BY page_id,is_template DESC' );
+ }
+ // Read an extra row as an at-end check
+ $queryLimit = $limit + 1;
+ $options['LIMIT'] = $queryLimit;
+ if ( $offsetCond ) {
+ $tlConds[] = $offsetCond;
+ $plConds[] = $offsetCond;
+ }
+ $fields = array( 'page_id', 'page_namespace', 'page_title', 'page_is_redirect' );
- while ( $row = wfFetchObject( $res ) ) {
- $nt = Title::makeTitle( $row->cur_namespace, $row->cur_title );
- if( !$nt ) {
- continue;
- }
- $link = $sk->makeKnownLinkObj( $nt, "", "redirect=no" );
- $wgOut->addHTML( "<li>{$link}" );
+ $plRes = $dbr->select( array( 'pagelinks', 'page' ), $fields,
+ $plConds, $fname, $options );
+ $tlRes = $dbr->select( array( 'templatelinks', 'page' ), $fields,
+ $tlConds, $fname, $options );
- if ( $row->cur_is_redirect ) {
- $wgOut->addHTML( $isredir );
- wfShowIndirectLinks( 1, $row->cur_id );
- }
- $wgOut->addHTML( "</li>\n" );
+ if ( !$dbr->numRows( $plRes ) && !$dbr->numRows( $tlRes ) ) {
+ if ( 0 == $level ) {
+ $wgOut->addWikiText( wfMsg( 'nolinkshere', $this->target->getPrefixedText() ) );
}
- $wgOut->addHTML( "</ul>\n" );
- wfFreeResult( $res );
+ return;
}
- } else {
- wfShowIndirectLinks( 0, $id );
- }
-}
-function wfShowIndirectLinks( $level, $lid )
-{
- global $wgOut, $wgUser;
- $fname = "wfShowIndirectLinks";
+ // Read the rows into an array and remove duplicates
+ // templatelinks comes second so that the templatelinks row overwrites the
+ // pagelinks row, so we get (inclusion) rather than nothing
+ while ( $row = $dbr->fetchObject( $plRes ) ) {
+ $row->is_template = 0;
+ $rows[$row->page_id] = $row;
+ }
+ $dbr->freeResult( $plRes );
+ while ( $row = $dbr->fetchObject( $tlRes ) ) {
+ $row->is_template = 1;
+ $rows[$row->page_id] = $row;
+ }
+ $dbr->freeResult( $tlRes );
+
+ // Sort by key and then change the keys to 0-based indices
+ ksort( $rows );
+ $rows = array_values( $rows );
- $sql = "SELECT cur_id,cur_namespace,cur_title,cur_is_redirect FROM links,cur WHERE l_to={$lid} AND l_from=cur_id LIMIT 500";
- $res = wfQuery( $sql, DB_READ, $fname );
+ $numRows = count( $rows );
+
+ // Work out the start and end IDs, for prev/next links
+ if ( $dir == 'prev' ) {
+ // Descending order
+ if ( $numRows > $limit ) {
+ // More rows available before these ones
+ // Get the ID from the next row past the end of the displayed set
+ $prevId = $rows[$limit]->page_id;
+ // Remove undisplayed rows
+ $rows = array_slice( $rows, 0, $limit );
+ } else {
+ // No more rows available before
+ $prevId = 0;
+ }
+ // Assume that the ID specified in $from exists, so there must be another page
+ $nextId = $from;
+
+ // Reverse order ready for display
+ $rows = array_reverse( $rows );
+ } else {
+ // Ascending
+ if ( $numRows > $limit ) {
+ // More rows available after these ones
+ // Get the ID from the last row in the result set
+ $nextId = $rows[$limit]->page_id;
+ // Remove undisplayed rows
+ $rows = array_slice( $rows, 0, $limit );
+ } else {
+ // No more rows after
+ $nextId = false;
+ }
+ $prevId = $from;
+ }
- if ( 0 == wfNumRows( $res ) ) {
if ( 0 == $level ) {
- $wgOut->addHTML( wfMsg( "nolinkshere" ) );
+ $wgOut->addWikiText( wfMsg( 'linkshere', $this->target->getPrefixedText() ) );
+ }
+ $isredir = wfMsg( 'isredirect' );
+ $istemplate = wfMsg( 'istemplate' );
+
+ if( $level == 0 ) {
+ $prevnext = $this->getPrevNext( $limit, $prevId, $nextId );
+ $wgOut->addHTML( $prevnext );
+ }
+
+ $wgOut->addHTML( '<ul>' );
+ foreach ( $rows as $row ) {
+ $nt = Title::makeTitle( $row->page_namespace, $row->page_title );
+
+ if ( $row->page_is_redirect ) {
+ $extra = 'redirect=no';
+ } else {
+ $extra = '';
+ }
+
+ $link = $this->skin->makeKnownLinkObj( $nt, '', $extra );
+ $wgOut->addHTML( '<li>'.$link );
+
+ // Display properties (redirect or template)
+ $props = array();
+ if ( $row->page_is_redirect ) {
+ $props[] = $isredir;
+ }
+ if ( $row->is_template ) {
+ $props[] = $istemplate;
+ }
+ if ( count( $props ) ) {
+ // FIXME? Cultural assumption, hard-coded punctuation
+ $wgOut->addHTML( ' (' . implode( ', ', $props ) . ') ' );
+ }
+
+ if ( $row->page_is_redirect ) {
+ if ( $level < 2 ) {
+ $this->showIndirectLinks( $level + 1, $nt, 500 );
+ }
+ }
+ $wgOut->addHTML( "</li>\n" );
+ }
+ $wgOut->addHTML( "</ul>\n" );
+
+ if( $level == 0 ) {
+ $wgOut->addHTML( $prevnext );
}
- return;
}
- if ( 0 == $level ) {
- $wgOut->addHTML( wfMsg( "linkshere" ) );
+
+ function makeSelfLink( $text, $query ) {
+ return $this->skin->makeKnownLinkObj( $this->selfTitle, $text, $query );
}
- $sk = $wgUser->getSkin();
- $isredir = " (" . wfMsg( "isredirect" ) . ")\n";
-
- $wgOut->addHTML( "<ul>" );
- while ( $row = wfFetchObject( $res ) ) {
- $nt = Title::makeTitle( $row->cur_namespace, $row->cur_title );
- if( !$nt ) {
- $wgOut->addHTML( "<!-- bad backlink: " . htmlspecialchars( $row->l_from ) . " -->\n" );
- continue;
- }
-
- if ( $row->cur_is_redirect ) {
- $extra = "redirect=no";
+
+ function getPrevNext( $limit, $prevId, $nextId ) {
+ global $wgLang;
+ $fmtLimit = $wgLang->formatNum( $limit );
+ $prev = wfMsg( 'prevn', $fmtLimit );
+ $next = wfMsg( 'nextn', $fmtLimit );
+
+ if ( 0 != $prevId ) {
+ $prevLink = $this->makeSelfLink( $prev, "limit={$limit}&from={$prevId}&dir=prev" );
} else {
- $extra = "";
+ $prevLink = $prev;
}
-
- $link = $sk->makeKnownLinkObj( $nt, "", $extra );
- $wgOut->addHTML( "<li>{$link}" );
-
- if ( $row->cur_is_redirect ) {
- $wgOut->addHTML( $isredir );
- if ( $level < 2 ) {
- wfShowIndirectLinks( $level + 1, $row->cur_id );
- }
+ if ( 0 != $nextId ) {
+ $nextLink = $this->makeSelfLink( $next, "limit={$limit}&from={$nextId}" );
+ } else {
+ $nextLink = $next;
}
- $wgOut->addHTML( "</li>\n" );
+ $nums = $this->numLink( 20, $prevId ) . ' | ' .
+ $this->numLink( 50, $prevId ) . ' | ' .
+ $this->numLink( 100, $prevId ) . ' | ' .
+ $this->numLink( 250, $prevId ) . ' | ' .
+ $this->numLink( 500, $prevId );
+
+ return wfMsg( 'viewprevnext', $prevLink, $nextLink, $nums );
+ }
+
+ function numLink( $limit, $from ) {
+ global $wgLang;
+ $query = "limit={$limit}&from={$from}";
+ $fmtLimit = $wgLang->formatNum( $limit );
+ return $this->makeSelfLink( $fmtLimit, $query );
}
- $wgOut->addHTML( "</ul>\n" );
}
?>
dépôts / lhc / web / wiklou.git / blobdiff