<?php
+/**
+ * Implements Special:Recentchangeslinked
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ * @ingroup SpecialPage
+ */
/**
* This is to display changes made to all articles linked in an article.
+ *
* @ingroup SpecialPage
*/
-class SpecialRecentchangeslinked extends SpecialRecentchanges {
+class SpecialRecentChangesLinked extends SpecialRecentChanges {
+ /** @var bool|Title */
+ protected $rclTargetTitle;
- function __construct(){
- SpecialPage::SpecialPage( 'Recentchangeslinked' );
- $this->includable( true );
+ function __construct() {
+ parent::__construct( 'Recentchangeslinked' );
}
public function getDefaultOptions() {
$opts = parent::getDefaultOptions();
$opts->add( 'target', '' );
$opts->add( 'showlinkedto', false );
+
return $opts;
}
$opts['target'] = $par;
}
- public function feedSetup(){
- global $wgRequest;
- $opts = parent::feedSetup();
- $opts['target'] = $wgRequest->getVal( 'target' );
- return $opts;
- }
-
- public function getFeedObject( $feedFormat ){
- $feed = new ChangesFeed( $feedFormat, false );
- $feedObj = $feed->getFeedObject(
- wfMsgForContent( 'recentchangeslinked-title', $this->mTargetTitle->getPrefixedText() ),
- wfMsgForContent( 'recentchangeslinked' )
- );
- return array( $feed, $feedObj );
- }
-
- public function doMainQuery( $conds, $opts ) {
- global $wgUser, $wgOut;
-
+ /**
+ * @inheritDoc
+ */
+ protected function doMainQuery( $tables, $select, $conds, $query_options,
+ $join_conds, FormOptions $opts
+ ) {
$target = $opts['target'];
$showlinkedto = $opts['showlinkedto'];
$limit = $opts['limit'];
if ( $target === '' ) {
return false;
}
- $title = Title::newFromURL( $target );
- if( !$title || $title->getInterwiki() != '' ){
- $wgOut->wrapWikiMsg( '<div class="errorbox">$1</div><br clear="both" />', 'allpagesbadtitle' );
+ $outputPage = $this->getOutput();
+ $title = Title::newFromText( $target );
+ if ( !$title || $title->isExternal() ) {
+ $outputPage->addHTML( '<div class="errorbox">' . $this->msg( 'allpagesbadtitle' )
+ ->parse() . '</div>' );
+
return false;
}
- $this->mTargetTitle = $title;
- $wgOut->setPageTitle( wfMsg( 'recentchangeslinked-title', $title->getPrefixedText() ) );
+ $outputPage->setPageTitle( $this->msg( 'recentchangeslinked-title', $title->getPrefixedText() ) );
/*
* Ordinary links are in the pagelinks table, while transclusions are
* expects only one result set so we use UNION instead.
*/
- $dbr = wfGetDB( DB_SLAVE, 'recentchangeslinked' );
- $id = $title->getArticleId();
+ $dbr = wfGetDB( DB_REPLICA, 'recentchangeslinked' );
+ $id = $title->getArticleID();
$ns = $title->getNamespace();
$dbkey = $title->getDBkey();
- $tables = array( 'recentchanges' );
- $select = array( $dbr->tableName( 'recentchanges' ) . '.*' );
- $join_conds = array();
+ $tables[] = 'recentchanges';
+ $select = array_merge( RecentChange::selectFields(), $select );
// left join with watchlist table to highlight watched rows
- if( $uid = $wgUser->getId() ) {
+ $uid = $this->getUser()->getId();
+ if ( $uid && $this->getUser()->isAllowed( 'viewmywatchlist' ) ) {
$tables[] = 'watchlist';
$select[] = 'wl_user';
- $join_conds['watchlist'] = array( 'LEFT JOIN', "wl_user={$uid} AND wl_title=rc_title AND wl_namespace=rc_namespace" );
+ $join_conds['watchlist'] = [ 'LEFT JOIN', [
+ 'wl_user' => $uid,
+ 'wl_title=rc_title',
+ 'wl_namespace=rc_namespace'
+ ] ];
}
- // XXX: parent class does this, should we too?
- // wfRunHooks('SpecialRecentChangesQuery', array( &$conds, &$tables, &$join_conds, $opts ) );
+ // JOIN on page, used for 'last revision' filter highlight
+ $tables[] = 'page';
+ $join_conds['page'] = [ 'LEFT JOIN', 'rc_cur_id=page_id' ];
+ $select[] = 'page_latest';
- if( $ns == NS_CATEGORY && !$showlinkedto ) {
+ $tagFilter = $opts['tagfilter'] ? explode( '|', $opts['tagfilter'] ) : [];
+ ChangeTags::modifyDisplayQuery(
+ $tables,
+ $select,
+ $conds,
+ $join_conds,
+ $query_options,
+ $tagFilter
+ );
+
+ if ( $dbr->unionSupportsOrderAndLimit() ) {
+ if ( count( $tagFilter ) > 1 ) {
+ // ChangeTags::modifyDisplayQuery() will have added DISTINCT.
+ // To prevent this from causing query performance problems, we need to add
+ // a GROUP BY, and add rc_id to the ORDER BY.
+ $order = [
+ 'GROUP BY' => 'rc_timestamp, rc_id',
+ 'ORDER BY' => 'rc_timestamp DESC, rc_id DESC'
+ ];
+ } else {
+ $order = [ 'ORDER BY' => 'rc_timestamp DESC' ];
+ }
+ } else {
+ $order = [];
+ }
+
+ if ( !$this->runMainQueryHook( $tables, $select, $conds, $query_options, $join_conds,
+ $opts )
+ ) {
+ return false;
+ }
+
+ if ( $ns == NS_CATEGORY && !$showlinkedto ) {
// special handling for categories
- // XXX: should try to make this less klugy
- $link_tables = array( 'categorylinks' );
+ // XXX: should try to make this less kludgy
+ $link_tables = [ 'categorylinks' ];
$showlinkedto = true;
} else {
// for now, always join on these tables; really should be configurable as in whatlinkshere
- $link_tables = array( 'pagelinks', 'templatelinks' );
+ $link_tables = [ 'pagelinks', 'templatelinks' ];
// imagelinks only contains links to pages in NS_FILE
- if( $ns == NS_FILE || !$showlinkedto ) $link_tables[] = 'imagelinks';
+ if ( $ns == NS_FILE || !$showlinkedto ) {
+ $link_tables[] = 'imagelinks';
+ }
}
- if( $id == 0 && !$showlinkedto )
+ if ( $id == 0 && !$showlinkedto ) {
return false; // nonexistent pages can't link to any pages
+ }
// field name prefixes for all the various tables we might want to join with
- $prefix = array( 'pagelinks' => 'pl', 'templatelinks' => 'tl', 'categorylinks' => 'cl', 'imagelinks' => 'il' );
+ $prefix = [
+ 'pagelinks' => 'pl',
+ 'templatelinks' => 'tl',
+ 'categorylinks' => 'cl',
+ 'imagelinks' => 'il'
+ ];
- $subsql = array(); // SELECT statements to combine with UNION
+ $subsql = []; // SELECT statements to combine with UNION
- foreach( $link_tables as $link_table ) {
+ foreach ( $link_tables as $link_table ) {
$pfx = $prefix[$link_table];
- // imagelinks and categorylinks tables have no xx_namespace field, and have xx_to instead of xx_title
- if( $link_table == 'imagelinks' ) $link_ns = NS_FILE;
- else if( $link_table == 'categorylinks' ) $link_ns = NS_CATEGORY;
- else $link_ns = 0;
+ // imagelinks and categorylinks tables have no xx_namespace field,
+ // and have xx_to instead of xx_title
+ if ( $link_table == 'imagelinks' ) {
+ $link_ns = NS_FILE;
+ } elseif ( $link_table == 'categorylinks' ) {
+ $link_ns = NS_CATEGORY;
+ } else {
+ $link_ns = 0;
+ }
- if( $showlinkedto ) {
+ if ( $showlinkedto ) {
// find changes to pages linking to this page
- if( $link_ns ) {
- if( $ns != $link_ns ) continue; // should never happen, but check anyway
- $subconds = array( "{$pfx}_to" => $dbkey );
+ if ( $link_ns ) {
+ if ( $ns != $link_ns ) {
+ continue;
+ } // should never happen, but check anyway
+ $subconds = [ "{$pfx}_to" => $dbkey ];
} else {
- $subconds = array( "{$pfx}_namespace" => $ns, "{$pfx}_title" => $dbkey );
+ $subconds = [ "{$pfx}_namespace" => $ns, "{$pfx}_title" => $dbkey ];
}
$subjoin = "rc_cur_id = {$pfx}_from";
} else {
// find changes to pages linked from this page
- $subconds = array( "{$pfx}_from" => $id );
- if( $link_table == 'imagelinks' || $link_table == 'categorylinks' ) {
+ $subconds = [ "{$pfx}_from" => $id ];
+ if ( $link_table == 'imagelinks' || $link_table == 'categorylinks' ) {
$subconds["rc_namespace"] = $link_ns;
$subjoin = "rc_title = {$pfx}_to";
} else {
- $subjoin = "rc_namespace = {$pfx}_namespace AND rc_title = {$pfx}_title";
+ $subjoin = [ "rc_namespace = {$pfx}_namespace", "rc_title = {$pfx}_title" ];
}
}
- $subsql[] = $dbr->selectSQLText( array_merge( $tables, array( $link_table ) ), $select, $conds + $subconds,
- __METHOD__, array( 'ORDER BY' => 'rc_timestamp DESC', 'LIMIT' => $limit ),
- $join_conds + array( $link_table => array( 'INNER JOIN', $subjoin ) ) );
+ $query = $dbr->selectSQLText(
+ array_merge( $tables, [ $link_table ] ),
+ $select,
+ $conds + $subconds,
+ __METHOD__,
+ $order + $query_options,
+ $join_conds + [ $link_table => [ 'INNER JOIN', $subjoin ] ]
+ );
+
+ if ( $dbr->unionSupportsOrderAndLimit() ) {
+ $query = $dbr->limitResult( $query, $limit );
+ }
+
+ $subsql[] = $query;
}
- if( count($subsql) == 0 )
+ if ( count( $subsql ) == 0 ) {
return false; // should never happen
- if( count($subsql) == 1 )
+ }
+ if ( count( $subsql ) == 1 && $dbr->unionSupportsOrderAndLimit() ) {
$sql = $subsql[0];
- else {
+ } else {
// need to resort and relimit after union
- $sql = "(" . implode( ") UNION (", $subsql ) . ") ORDER BY rc_timestamp DESC LIMIT {$limit}";
+ $sql = $dbr->unionQueries( $subsql, false ) . ' ORDER BY rc_timestamp DESC';
+ $sql = $dbr->limitResult( $sql, $limit, false );
}
$res = $dbr->query( $sql, __METHOD__ );
- if( $res->numRows() == 0 )
+ if ( $res->numRows() == 0 ) {
$this->mResultEmpty = true;
+ }
return $res;
}
-
- function getExtraOptions( $opts ){
- $opts->consumeValues( array( 'showlinkedto', 'target' ) );
- $extraOpts = array();
- $extraOpts['namespace'] = $this->namespaceFilterForm( $opts );
- $extraOpts['target'] = array( wfMsg( 'recentchangeslinked-page' ),
- Xml::input( 'target', 40, str_replace('_',' ',$opts['target']) ) .
- Xml::check( 'showlinkedto', $opts['showlinkedto'], array('id' => 'showlinkedto') ) . ' ' .
- Xml::label( wfMsg("recentchangeslinked-to"), 'showlinkedto' ) );
- return $extraOpts;
+
+ function setTopText( FormOptions $opts ) {
+ $target = $this->getTargetTitle();
+ if ( $target ) {
+ $this->getOutput()->addBacklinkSubtitle( $target );
+ $this->getSkin()->setRelevantTitle( $target );
+ }
}
- function setTopText( OutputPage $out, FormOptions $opts ) {
- global $wgUser;
- $skin = $wgUser->getSkin();
- if( isset( $this->mTargetTitle ) && is_object( $this->mTargetTitle ) )
- $out->setSubtitle( wfMsg( 'recentchangeslinked-backlink', $skin->link( $this->mTargetTitle,
- $this->mTargetTitle->getPrefixedText(), array(), array( 'redirect' => 'no' ) ) ) );
+ /**
+ * Get options to be displayed in a form
+ *
+ * @param FormOptions $opts
+ * @return array
+ */
+ function getExtraOptions( $opts ) {
+ $extraOpts = parent::getExtraOptions( $opts );
+
+ $opts->consumeValues( [ 'showlinkedto', 'target' ] );
+
+ $extraOpts['target'] = [ $this->msg( 'recentchangeslinked-page' )->escaped(),
+ Xml::input( 'target', 40, str_replace( '_', ' ', $opts['target'] ) ) .
+ Xml::check( 'showlinkedto', $opts['showlinkedto'], [ 'id' => 'showlinkedto' ] ) . ' ' .
+ Xml::label( $this->msg( 'recentchangeslinked-to' )->text(), 'showlinkedto' ) ];
+
+ $this->addHelpLink( 'Help:Related changes' );
+ return $extraOpts;
}
- function setBottomText( OutputPage $out, FormOptions $opts ){
- if( isset( $this->mTargetTitle ) && is_object( $this->mTargetTitle ) ){
- global $wgUser;
- $out->setFeedAppendQuery( "target=" . urlencode( $this->mTargetTitle->getPrefixedDBkey() ) );
- }
- if( isset( $this->mResultEmpty ) && $this->mResultEmpty ){
- $out->addWikiMsg( 'recentchangeslinked-noresult' );
+ /**
+ * @return Title
+ */
+ function getTargetTitle() {
+ if ( $this->rclTargetTitle === null ) {
+ $opts = $this->getOptions();
+ if ( isset( $opts['target'] ) && $opts['target'] !== '' ) {
+ $this->rclTargetTitle = Title::newFromText( $opts['target'] );
+ } else {
+ $this->rclTargetTitle = false;
+ }
}
+
+ return $this->rclTargetTitle;
+ }
+
+ /**
+ * Return an array of subpages beginning with $search that this special page will accept.
+ *
+ * @param string $search Prefix to search for
+ * @param int $limit Maximum number of results to return (usually 10)
+ * @param int $offset Number of results to skip (usually 0)
+ * @return string[] Matching subpages
+ */
+ public function prefixSearchSubpages( $search, $limit, $offset ) {
+ return $this->prefixSearchString( $search, $limit, $offset );
}
}
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