<?php
/**
*
- * @package MediaWiki
- * @subpackage SpecialPage
+ * @addtogroup SpecialPage
*/
/**
$page->execute();
}
+/**
+ * implements Special:Whatlinkshere
+ * @addtogroup SpecialPage
+ */
class WhatLinksHerePage {
var $request, $par;
- var $limit, $from, $dir, $target;
+ var $limit, $from, $back, $target;
var $selfTitle, $skin;
+ private $namespace;
+
function WhatLinksHerePage( &$request, $par = null ) {
global $wgUser;
$this->request =& $request;
- $this->skin =& $wgUser->getSkin();
+ $this->skin = $wgUser->getSkin();
$this->par = $par;
}
$this->limit = 50;
}
$this->from = $this->request->getInt( 'from' );
- $this->dir = $this->request->getText( 'dir', 'next' );
- if ( $this->dir != 'prev' ) {
- $this->dir = 'next';
- }
+ $this->back = $this->request->getInt( 'back' );
$targetString = isset($this->par) ? $this->par : $this->request->getVal( 'target' );
$wgOut->setPagetitle( $this->target->getPrefixedText() );
$wgOut->setSubtitle( wfMsg( 'linklistsub' ) );
- $isredir = ' (' . wfMsg( 'isredirect' ) . ")\n";
-
- $wgOut->addHTML('< '.$this->skin->makeLinkObj($this->target, '', 'redirect=no' )."<br />\n");
+ $wgOut->addHTML( wfMsg( 'whatlinkshere-barrow' ) . ' ' .$this->skin->makeLinkObj($this->target, '', 'redirect=no' )."<br />\n");
- $this->showIndirectLinks( 0, $this->target, $this->limit, $this->from, $this->dir );
+ $this->showIndirectLinks( 0, $this->target, $this->limit, $this->from, $this->back );
}
/**
* @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
+ * @param Title $back Display from this article ID at backwards scrolling
* @private
*/
- function showIndirectLinks( $level, $target, $limit, $from = 0, $dir = 'next' ) {
+ function showIndirectLinks( $level, $target, $limit, $from = 0, $back = 0 ) {
global $wgOut;
$fname = 'WhatLinksHerePage::showIndirectLinks';
+ $dbr = wfGetDB( DB_READ );
+ $options = array();
- $dbr =& wfGetDB( DB_READ );
-
- extract( $dbr->tableNames( 'pagelinks', 'templatelinks', 'page' ) );
-
- // Some extra validation
- $from = intval( $from );
- if ( !$from && $dir == 'prev' ) {
- // Before start? No make sense
- $dir = 'next';
+ $ns = $this->request->getIntOrNull( 'namespace' );
+ if ( isset( $ns ) ) {
+ $options['namespace'] = $ns;
+ $this->setNamespace( $options['namespace'] );
+ } else {
+ $options['namespace'] = '';
}
// Make the query
'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 {
- $offsetCond = false;
- $options = array( 'ORDER BY page_id,is_template DESC' );
+ if ( $this->namespace !== null ){
+ $plConds['page_namespace'] = (int)$this->namespace;
+ $tlConds['page_namespace'] = (int)$this->namespace;
}
+
+ if ( $from ) {
+ $from = (int)$from; // just in case
+ $tlConds[] = "tl_from >= $from";
+ $plConds[] = "pl_from >= $from";
+ }
+
// Read an extra row as an at-end check
$queryLimit = $limit + 1;
+
+ // enforce join order, sometimes namespace selector may
+ // trigger filesorts which are far less efficient than scanning many entries
+ $options[] = 'STRAIGHT_JOIN';
+
$options['LIMIT'] = $queryLimit;
- if ( $offsetCond ) {
- $tlConds[] = $offsetCond;
- $plConds[] = $offsetCond;
- }
$fields = array( 'page_id', 'page_namespace', 'page_title', 'page_is_redirect' );
+ $options['ORDER BY'] = 'pl_from';
$plRes = $dbr->select( array( 'pagelinks', 'page' ), $fields,
$plConds, $fname, $options );
+
+ $options['ORDER BY'] = 'tl_from';
$tlRes = $dbr->select( array( 'templatelinks', 'page' ), $fields,
$tlConds, $fname, $options );
-
+
if ( !$dbr->numRows( $plRes ) && !$dbr->numRows( $tlRes ) ) {
- if ( 0 == $level ) {
- $wgOut->addWikiText( wfMsg( 'nolinkshere' ) );
+ if ( 0 == $level && !isset( $this->namespace ) ) {
+ // really no links to here
+ $wgOut->addWikiText( wfMsg( 'nolinkshere', $this->target->getPrefixedText() ) );
+ } elseif ( 0 == $level && isset( $this->namespace ) ) {
+ // no links from requested namespace to here
+ $options = array(); // reinitialize for a further namespace search
+ $options['namespace'] = $this->namespace;
+ $options['target'] = $this->target->getPrefixedText();
+ list( $options['limit'], $options['offset']) = wfCheckLimits();
+ $wgOut->addHTML( $this->whatlinkshereForm( $options ) );
+ $wgOut->addWikiText( wfMsg( 'nolinkshere-ns', $this->target->getPrefixedText() ) );
}
return;
}
+ $options = array();
+ list( $options['limit'], $options['offset']) = wfCheckLimits();
+ if ( ( $ns = $this->request->getVal( 'namespace', null ) ) !== null && $ns !== '' && ctype_digit($ns) ) {
+ $options['namespace'] = intval( $ns );
+ $this->setNamespace( $options['namespace'] );
+ } else {
+ $options['namespace'] = '';
+ $this->setNamespace( null );
+ }
+ $options['offset'] = $this->request->getVal( 'offset' );
+ /* Offset must be an integral. */
+ if ( !strlen( $options['offset'] ) || !preg_match( '/^[0-9]+$/', $options['offset'] ) )
+ $options['offset'] = '';
+ $options['target'] = $this->target->getPrefixedDBkey();
+
// 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
$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 );
+ 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 {
- // 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;
+ // No more rows after
+ $nextId = false;
}
+ $prevId = $from;
- if ( 0 == $level ) {
- $wgOut->addWikiText( wfMsg( 'linkshere' ) );
+ if ( $level == 0 ) {
+ $wgOut->addHTML( $this->whatlinkshereForm( $options ) );
+ $wgOut->addWikiText( wfMsg( 'linkshere', $this->target->getPrefixedText() ) );
}
$isredir = wfMsg( 'isredirect' );
$istemplate = wfMsg( 'istemplate' );
if( $level == 0 ) {
- $prevnext = $this->getPrevNext( $limit, $prevId, $nextId );
+ $prevnext = $this->getPrevNext( $limit, $prevId, $nextId, $options['namespace'] );
$wgOut->addHTML( $prevnext );
}
function getPrevNext( $limit, $prevId, $nextId ) {
global $wgLang;
$fmtLimit = $wgLang->formatNum( $limit );
- $prev = wfMsg( 'prevn', $fmtLimit );
- $next = wfMsg( 'nextn', $fmtLimit );
+ $prev = wfMsgExt( 'whatlinkshere-prev', array( 'parsemag', 'escape' ), $fmtLimit );
+ $next = wfMsgExt( 'whatlinkshere-next', array( 'parsemag', 'escape' ), $fmtLimit );
+
+ $nsText = '';
+ if( is_int($this->namespace) ) {
+ $nsText = "&namespace={$this->namespace}";
+ }
if ( 0 != $prevId ) {
- $prevLink = $this->makeSelfLink( $prev, "limit={$limit}&from={$prevId}&dir=prev" );
+ $prevLink = $this->makeSelfLink( $prev, "limit={$limit}&from={$this->back}{$nsText}" );
} else {
$prevLink = $prev;
}
if ( 0 != $nextId ) {
- $nextLink = $this->makeSelfLink( $next, "limit={$limit}&from={$nextId}" );
+ $nextLink = $this->makeSelfLink( $next, "limit={$limit}&from={$nextId}&back={$prevId}{$nsText}" );
} else {
$nextLink = $next;
}
return wfMsg( 'viewprevnext', $prevLink, $nextLink, $nums );
}
- function numLink( $limit, $from ) {
+ function numLink( $limit, $from, $ns = null ) {
global $wgLang;
$query = "limit={$limit}&from={$from}";
+ if( is_int($this->namespace) ) { $query .= "&namespace={$this->namespace}";}
$fmtLimit = $wgLang->formatNum( $limit );
return $this->makeSelfLink( $fmtLimit, $query );
}
+
+ function whatlinkshereForm( $options ) {
+ global $wgScript, $wgTitle;
+
+ $options['title'] = $wgTitle->getPrefixedText();
+
+ $f = Xml::openElement( 'form', array( 'method' => 'get', 'action' => "$wgScript" ) ) .
+ '<fieldset>' .
+ Xml::element( 'legend', array(), wfMsg( 'whatlinkshere' ) );
+
+ foreach ( $options as $name => $value ) {
+ if( $name === 'namespace') continue;
+ $f .= "\t" . Xml::hidden( $name, $value ). "\n";
+ }
+
+ $f .= Xml::label( wfMsg( 'namespace' ), 'namespace' ) . ' ' .
+ Xml::namespaceSelector( $options['namespace'], '' ) .
+ Xml::submitButton( wfMsg( 'allpagessubmit' ) ) .
+ '</fieldset>' .
+ Xml::closeElement( 'form' ) . "\n";
+
+ return $f;
+ }
+
+ /** Set the namespace we are filtering on */
+ private function setNamespace( $ns ) {
+ $this->namespace = $ns;
+ }
+
}
?>
dépôts / lhc / web / wiklou.git / blobdiff