*/
class WhatLinksHerePage {
var $request, $par;
- var $limit, $from, $back, $target, $namespace;
+ var $limit, $from, $back, $target;
var $selfTitle, $skin;
+ private $namespace;
+
function WhatLinksHerePage( &$request, $par = null ) {
global $wgUser;
$this->request =& $request;
$targetString = isset($this->par) ? $this->par : $this->request->getVal( 'target' );
- if (is_null($targetString)) {
- $wgOut->showErrorPage( 'notargettitle', 'notargettext' );
+ if ( is_null( $targetString ) ) {
+ $wgOut->addHTML( $this->whatlinkshereForm() );
return;
}
$this->target = Title::newFromURL( $targetString );
if( !$this->target ) {
- $wgOut->showErrorPage( 'notargettitle', 'notargettext' );
+ $wgOut->addHTML( $this->whatlinkshereForm() );
return;
}
$this->selfTitle = Title::makeTitleSafe( NS_SPECIAL,
'Whatlinkshere/' . $this->target->getPrefixedDBkey() );
- $wgOut->setPagetitle( $this->target->getPrefixedText() );
+
+ $wgOut->setPageTitle( wfMsg( 'whatlinkshere-title', $this->target->getPrefixedText() ) );
$wgOut->setSubtitle( wfMsg( 'linklistsub' ) );
$wgOut->addHTML( wfMsg( 'whatlinkshere-barrow' ) . ' ' .$this->skin->makeLinkObj($this->target, '', 'redirect=no' )."<br />\n");
}
if ( $from ) {
- $offsetCond = "page_id >= $from";
- } else {
- $offsetCond = false;
- }
- $options['ORDER BY'] = 'page_id';
+ $from = (int)$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 && !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
+ if ( 0 == $level ) {
$options = array(); // reinitialize for a further namespace search
+ // really no links to here
$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() ) );
+ $errMsg = isset( $this->namespace ) ? 'nolinkshere-ns' : 'nolinkshere';
+ $wgOut->addWikiText( wfMsg( $errMsg, $this->target->getPrefixedText() ) );
}
return;
}
/* Offset must be an integral. */
if ( !strlen( $options['offset'] ) || !preg_match( '/^[0-9]+$/', $options['offset'] ) )
$options['offset'] = '';
- $options['target'] = $this->target->getPrefixedDBkey();
+ $options['target'] = $this->target->getPrefixedText();
// Read the rows into an array and remove duplicates
// templatelinks comes second so that the templatelinks row overwrites the
$wgOut->addHTML( ' (' . implode( ', ', $props ) . ') ' );
}
+ # Space for utilities links, with a what-links-here link provided
+ $wlh = $this->skin->makeKnownLinkObj(
+ SpecialPage::getTitleFor( 'Whatlinkshere' ),
+ wfMsgHtml( 'whatlinkshere-links' ),
+ 'target=' . $nt->getPrefixedUrl()
+ );
+ $wgOut->addHtml( ' <span class="mw-whatlinkshere-tools">(' . $wlh . ')</span>' );
+
if ( $row->page_is_redirect ) {
if ( $level < 2 ) {
$this->showIndirectLinks( $level + 1, $nt, 500 );
return $this->skin->makeKnownLinkObj( $this->selfTitle, $text, $query );
}
- function getPrevNext( $limit, $prevId, $nextId, $namespace ) {
+ function getPrevNext( $limit, $prevId, $nextId ) {
global $wgLang;
$fmtLimit = $wgLang->formatNum( $limit );
$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={$this->back}&namespace={$namespace}" );
+ $prevLink = $this->makeSelfLink( $prev, "limit={$limit}&from={$this->back}{$nsText}" );
} else {
$prevLink = $prev;
}
if ( 0 != $nextId ) {
- $nextLink = $this->makeSelfLink( $next, "limit={$limit}&from={$nextId}&back={$prevId}&namespace={$namespace}" );
+ $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 ) {
+ function whatlinkshereForm( $options = array( 'target' => '', 'namespace' => '' ) ) {
global $wgScript, $wgTitle;
$options['title'] = $wgTitle->getPrefixedText();
- $f = Xml::openElement( 'form', array( 'method' => 'get', 'action' => "$wgScript" ) ) .
- '<fieldset>' .
- Xml::element( 'legend', array(), wfMsg( 'whatlinkshere' ) );
+ $f = Xml::openElement( 'form', array( 'method' => 'get', 'action' => $wgScript ) ) .
+ Xml::openElement( 'fieldset' ) .
+ Xml::element( 'legend', array(), wfMsg( 'whatlinkshere' ) ) .
+ Xml::inputLabel( wfMsg( 'whatlinkshere-page' ), 'target', 'mw-whatlinkshere-target', 40, $options['target'] ) . ' ';
foreach ( $options as $name => $value ) {
- if( $name === 'namespace') continue;
+ if( $name === 'namespace' || $name === 'target' )
+ 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( 'fieldset' ) .
Xml::closeElement( 'form' ) . "\n";
return $f;
}
- function setNamespace( $ns ) {
+ /** Set the namespace we are filtering on */
+ private function setNamespace( $ns ) {
$this->namespace = $ns;
}
}
-
-?>