X-Git-Url: https://git.heureux-cyclage.org/?a=blobdiff_plain;f=includes%2Fspecials%2FSpecialRecentchangeslinked.php;h=9010e1018ef60b973f8bfb6ff397f15bc752eaaa;hb=127befb1786c6a4279de2f27066a84b3560e9bbd;hp=2b00ef3f8f963c60bd5b0d3d83fb156e7390cece;hpb=c51e64755460f45877f189ff697806a1de1a7e23;p=lhc%2Fweb%2Fwiklou.git

diff --git a/includes/specials/SpecialRecentchangeslinked.php b/includes/specials/SpecialRecentchangeslinked.php
index 2b00ef3f8f..9010e1018e 100644
--- a/includes/specials/SpecialRecentchangeslinked.php
+++ b/includes/specials/SpecialRecentchangeslinked.php
@@ -1,19 +1,43 @@
 <?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 $rclTargetTitle;
 
 	function __construct(){
-		SpecialPage::SpecialPage( 'Recentchangeslinked' );	
+		parent::__construct( 'Recentchangeslinked' );
 	}
 
 	public function getDefaultOptions() {
 		$opts = parent::getDefaultOptions();
 		$opts->add( 'target', '' );
 		$opts->add( 'showlinkedto', false );
+		$opts->add( 'tagfilter', '' );
 		return $opts;
 	}
 
@@ -21,25 +45,24 @@ class SpecialRecentchangeslinked extends SpecialRecentchanges {
 		$opts['target'] = $par;
 	}
 
-	public function feedSetup(){
-		global $wgRequest;
+	public function feedSetup() {
 		$opts = parent::feedSetup();
-		$opts['target'] = $wgRequest->getVal( 'target' );
+		$opts['target'] = $this->getRequest()->getVal( 'target' );
 		return $opts;
 	}
 
 	public function getFeedObject( $feedFormat ){
 		$feed = new ChangesFeed( $feedFormat, false );
 		$feedObj = $feed->getFeedObject(
-			wfMsgForContent( 'recentchangeslinked-title', $this->mTargetTitle->getPrefixedText() ),
-			wfMsgForContent( 'recentchangeslinked' )
+			$this->msg( 'recentchangeslinked-title', $this->getTargetTitle()->getPrefixedText() )
+				->inContentLanguage()->text(),
+			$this->msg( 'recentchangeslinked-feed' )->inContentLanguage()->text(),
+			$this->getTitle()->getFullUrl()
 		);
 		return array( $feed, $feedObj );
 	}
 
 	public function doMainQuery( $conds, $opts ) {
-		global $wgUser, $wgOut;
-
 		$target = $opts['target'];
 		$showlinkedto = $opts['showlinkedto'];
 		$limit = $opts['limit'];
@@ -47,84 +70,206 @@ class SpecialRecentchangeslinked extends SpecialRecentchanges {
 		if ( $target === '' ) {
 			return false;
 		}
+		$outputPage = $this->getOutput();
 		$title = Title::newFromURL( $target );
 		if( !$title || $title->getInterwiki() != '' ){
-			global $wgOut;
-			$wgOut->wrapWikiMsg( '<div class="errorbox">$1</div><br clear="both" />', 'allpagesbadtitle' );
+			$outputPage->wrapWikiMsg( "<div class=\"errorbox\">\n$1\n</div><br style=\"clear: both\" />", 'allpagesbadtitle' );
 			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
+		 * in the templatelinks table, categorizations in categorylinks and
+		 * image use in imagelinks.  We need to somehow combine all these.
+		 * Special:Whatlinkshere does this by firing multiple queries and
+		 * merging the results, but the code we inherit from our parent class
+		 * expects only one result set so we use UNION instead.
+		 */
 
 		$dbr = wfGetDB( DB_SLAVE, 'recentchangeslinked' );
-		$id = $title->getArticleId();
+		$id = $title->getArticleID();
+		$ns = $title->getNamespace();
+		$dbkey = $title->getDBkey();
 
 		$tables = array( 'recentchanges' );
 		$select = array( $dbr->tableName( 'recentchanges' ) . '.*' );
 		$join_conds = array();
+		$query_options = array();
+
+		// left join with watchlist table to highlight watched rows
+		$uid = $this->getUser()->getId();
+		if( $uid ) {
+			$tables[] = 'watchlist';
+			$select[] = 'wl_user';
+			$join_conds['watchlist'] = array( 'LEFT JOIN', "wl_user={$uid} AND wl_title=rc_title AND wl_namespace=rc_namespace" );
+		}
+		if ( $this->getUser()->isAllowed( 'rollback' ) ) {
+			$tables[] = 'page';
+			$join_conds['page'] = array('LEFT JOIN', 'rc_cur_id=page_id');
+			$select[] = 'page_latest';
+		}
+		if ( !$this->including() ) { // bug 23293
+			ChangeTags::modifyDisplayQuery( $tables, $select, $conds, $join_conds,
+				$query_options, $opts['tagfilter'] );
+		}
+
+		if ( !wfRunHooks( 'SpecialRecentChangesQuery', array( &$conds, &$tables, &$join_conds, $opts, &$query_options, &$select ) ) ) {
+			return false;
+		}
 
-		if( $title->getNamespace() == NS_CATEGORY ) {
-			$tables[] = 'categorylinks';
-			$conds['cl_to'] = $title->getDBkey();
-			$join_conds['categorylinks'] = array( 'LEFT JOIN', 'cl_from=rc_cur_id' );
+		if( $ns == NS_CATEGORY && !$showlinkedto ) {
+			// special handling for categories
+			// XXX: should try to make this less klugy
+			$link_tables = array( 'categorylinks' );
+			$showlinkedto = true;
 		} else {
+			// for now, always join on these tables; really should be configurable as in whatlinkshere
+			$link_tables = array( 'pagelinks', 'templatelinks' );
+			// imagelinks only contains links to pages in NS_FILE
+			if( $ns == NS_FILE || !$showlinkedto ) {
+				$link_tables[] = 'imagelinks';
+			}
+		}
+
+		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' );
+
+		$subsql = array(); // SELECT statements to combine with UNION
+
+		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;
+			} elseif( $link_table == 'categorylinks' ) {
+				$link_ns = NS_CATEGORY;
+			} else {
+				$link_ns = 0;
+			}
+
 			if( $showlinkedto ) {
-				if( $title->getNamespace() == NS_TEMPLATE ){
-					$tables[] = 'templatelinks';
-					$conds['tl_namespace'] = $title->getNamespace();
-					$conds['tl_title'] = $title->getDBkey();
-					$join_conds['templatelinks'] = array( 'LEFT JOIN', 'tl_from=rc_cur_id' );
+				// 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 );
+				} else {
+					$subconds = array( "{$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["rc_namespace"] = $link_ns;
+					$subjoin = "rc_title = {$pfx}_to";
 				} else {
-					$tables[] = 'pagelinks';
-					$conds['pl_namespace'] = $title->getNamespace();
-					$conds['pl_title'] = $title->getDBkey();
-					$join_conds['pagelinks'] = array( 'LEFT JOIN', 'pl_from=rc_cur_id' );
+					$subjoin = "rc_namespace = {$pfx}_namespace AND rc_title = {$pfx}_title";
 				}
+			}
+
+			if( $dbr->unionSupportsOrderAndLimit()) {
+				$order = array( 'ORDER BY' => 'rc_timestamp DESC' );
 			} else {
-				$tables[] = 'pagelinks';
-				$conds['pl_from'] = $id;
-				$join_conds['pagelinks'] = array( 'LEFT JOIN', 'pl_namespace = rc_namespace AND pl_title = rc_title' );
+				$order = array();
 			}
+
+			$query = $dbr->selectSQLText(
+				array_merge( $tables, array( $link_table ) ),
+				$select,
+				$conds + $subconds,
+				__METHOD__,
+				$order + $query_options,
+				$join_conds + array( $link_table => array( 'INNER JOIN', $subjoin ) )
+			);
+
+			if( $dbr->unionSupportsOrderAndLimit())
+				$query = $dbr->limitResult( $query, $limit );
+
+			$subsql[] = $query;
 		}
 
-		if( $uid = $wgUser->getId() ) {
-			$tables[] = 'watchlist';
-			$join_conds['watchlist'] = array( 'LEFT JOIN', "wl_user={$uid} AND wl_title=rc_title AND wl_namespace=rc_namespace" );
-			$select[] = 'wl_user';
+		if( count($subsql) == 0 ) {
+			return false; // should never happen
+		}
+		if( count($subsql) == 1 && $dbr->unionSupportsOrderAndLimit() ) {
+			$sql = $subsql[0];
+		} else {
+			// need to resort and relimit after union
+			$sql = $dbr->unionQueries($subsql, false).' ORDER BY rc_timestamp DESC';
+			$sql = $dbr->limitResult($sql, $limit, false);
 		}
 
-		$res = $dbr->select( $tables, $select, $conds, __METHOD__,
-			array( 'ORDER BY' => 'rc_timestamp DESC', 'LIMIT' => $limit ), $join_conds );
+		$res = $dbr->query( $sql, __METHOD__ );
 
-		if( $dbr->numRows( $res ) == 0 )
+		if( $res->numRows() == 0 ) {
 			$this->mResultEmpty = true;
+		}
 
 		return $res;
 	}
-	
+
+	/**
+	 * @param $opts FormOptions
+	 * @return array
+	 */
 	function getExtraOptions( $opts ){
-		$opts->consumeValues( array( 'showlinkedto', 'target' ) );
+		$opts->consumeValues( array( 'showlinkedto', 'target', 'tagfilter' ) );
 		$extraOpts = array();
 		$extraOpts['namespace'] = $this->namespaceFilterForm( $opts );
-		$extraOpts['target'] = array( wfMsg( 'recentchangeslinked-page' ),
-			Xml::input( 'target', 40, $opts['target'] ) .
+		$extraOpts['target'] = array( $this->msg( 'recentchangeslinked-page' )->escaped(),
+			Xml::input( 'target', 40, str_replace('_',' ',$opts['target']) ) .
 			Xml::check( 'showlinkedto', $opts['showlinkedto'], array('id' => 'showlinkedto') ) . ' ' .
-			Xml::label( wfMsg("recentchangeslinked-to"), 'showlinkedto' ) );
-		$extraOpts['submit'] = Xml::submitbutton( wfMsg('allpagessubmit') );
+			Xml::label( $this->msg( 'recentchangeslinked-to' )->text(), 'showlinkedto' ) );
+		$tagFilter = ChangeTags::buildTagFilterSelector( $opts['tagfilter'] );
+		if ($tagFilter) {
+			$extraOpts['tagfilter'] = $tagFilter;
+		}
 		return $extraOpts;
 	}
-	
-	function setTopText( &$out, $opts ){}
-	
-	function setBottomText( &$out, $opts ){
-		if( isset( $this->mTargetTitle ) && is_object( $this->mTargetTitle ) ){
-			global $wgUser;
-			$out->setFeedAppendQuery( "target=" . urlencode( $this->mTargetTitle->getPrefixedDBkey() ) );
-			$out->addHTML("&lt; ".$wgUser->getSkin()->makeLinkObj( $this->mTargetTitle, "", "redirect=no" )."<hr />\n");
-		}
-		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;
+	}
+
+	function setTopText( FormOptions $opts ) {
+		$target = $this->getTargetTitle();
+		if( $target ) {
+			$this->getOutput()->addBacklinkSubtitle( $target );
+		}
+	}
+
+	public function getFeedQuery() {
+		$target = $this->getTargetTitle();
+		if( $target ) {
+			return "target=" . urlencode( $target->getPrefixedDBkey() );
+		} else {
+			return false;
+		}
+	}
+
+	function setBottomText( FormOptions $opts ) {
+		if( isset( $this->mResultEmpty ) && $this->mResultEmpty ) {
+			$this->getOutput()->addWikiMsg( 'recentchangeslinked-noresult' );
 		}
 	}
 }