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path: root/includes/SpecialRecentchangeslinked.php
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<?php
/**
 * This is to display changes made to all articles linked in an article.
 * @addtogroup SpecialPage
 */

/**
 *
 */
require_once( 'SpecialRecentchanges.php' );

/**
 * Entrypoint
 * @param string $par parent page we will look at
 */
function wfSpecialRecentchangeslinked( $par = NULL ) {
	global $wgUser, $wgOut, $wgLang, $wgContLang, $wgRequest, $wgTitle;
	$fname = 'wfSpecialRecentchangeslinked';

	$days = $wgRequest->getInt( 'days' );
	$target = isset($par) ? $par : $wgRequest->getText( 'target' );
	$hideminor = $wgRequest->getBool( 'hideminor' ) ? 1 : 0;

	$wgOut->setPagetitle( wfMsg( 'recentchangeslinked' ) );
	$sk = $wgUser->getSkin();

	if (is_null($target)) {
		$wgOut->errorpage( 'notargettitle', 'notargettext' );
		return;
	}
	$nt = Title::newFromURL( $target );
	if( !$nt ) {
		$wgOut->errorpage( 'notargettitle', 'notargettext' );
		return;
	}
	$id = $nt->getArticleId();

	$wgOut->setPageTitle( wfMsg( 'recentchangeslinked-title', $nt->getPrefixedText() ) );
	$wgOut->setSyndicated();
	$wgOut->setFeedAppendQuery( "target=" . urlencode( $target ) );

	if ( ! $days ) {
		$days = (int)$wgUser->getOption( 'rcdays', 7 );
	}
	list( $limit, /* offset */ ) = wfCheckLimits( 100, 'rclimit' );

	$dbr = wfGetDB( DB_SLAVE,'recentchangeslinked' );
	$cutoff = $dbr->timestamp( time() - ( $days * 86400 ) );

	$hideminor = ($hideminor ? 1 : 0);
	if ( $hideminor ) {
		$mlink = $sk->makeKnownLink( $wgContLang->specialPage( 'Recentchangeslinked' ),
	  	  wfMsg( 'show' ), 'target=' . htmlspecialchars( $nt->getPrefixedURL() ) .
		  "&days={$days}&limit={$limit}&hideminor=0" );
	} else {
		$mlink = $sk->makeKnownLink( $wgContLang->specialPage( "Recentchangeslinked" ),
	  	  wfMsg( "hide" ), "target=" . htmlspecialchars( $nt->getPrefixedURL() ) .
		  "&days={$days}&limit={$limit}&hideminor=1" );
	}
	if ( $hideminor ) {
		$cmq = 'AND rc_minor=0';
	} else { $cmq = ''; }

	list($recentchanges, $categorylinks, $pagelinks, $watchlist) = 
	    $dbr->tableNamesN( 'recentchanges', 'categorylinks', 'pagelinks', "watchlist" );

	$uid = $wgUser->getID();

	$GROUPBY = "
	GROUP BY rc_cur_id,rc_namespace,rc_title,
		rc_user,rc_comment,rc_user_text,rc_timestamp,rc_minor,rc_deleted,
		rc_new, rc_id, rc_this_oldid, rc_last_oldid, rc_bot, rc_patrolled, rc_type, rc_old_len, rc_new_len
" . ($uid ? ",wl_user" : "") . "
		ORDER BY rc_timestamp DESC
	LIMIT {$limit}";

	// If target is a Category, use categorylinks and invert from and to
	if( $nt->getNamespace() == NS_CATEGORY ) {
		$catkey = $dbr->addQuotes( $nt->getDBkey() );
		$sql = "SELECT /* wfSpecialRecentchangeslinked */
				rc_id,
				rc_cur_id,
				rc_namespace,
				rc_title,
				rc_this_oldid,
				rc_last_oldid,
				rc_user,
				rc_comment,
				rc_user_text,
				rc_timestamp,
				rc_minor,
				rc_bot,
				rc_new,
				rc_patrolled,
				rc_type,
				rc_old_len,
				rc_new_len,
				rc_deleted
" . ($uid ? ",wl_user" : "") . "
	    FROM $categorylinks, $recentchanges
" . ($uid ? "LEFT OUTER JOIN $watchlist ON wl_user={$uid} AND wl_title=rc_title AND wl_namespace=rc_namespace " : "") . "
	   WHERE rc_timestamp > '{$cutoff}'
	     {$cmq}
	     AND cl_from=rc_cur_id
	     AND cl_to=$catkey
$GROUPBY
 ";
	} else {
		$sql =
"SELECT /* wfSpecialRecentchangeslinked */
			rc_id,
			rc_cur_id,
			rc_namespace,
			rc_title,
			rc_user,
			rc_comment,
			rc_user_text,
			rc_this_oldid,
			rc_last_oldid,
			rc_timestamp,
			rc_minor,
			rc_bot,
			rc_new,
			rc_patrolled,
			rc_type,
			rc_old_len,
			rc_new_len,
			rc_deleted
" . ($uid ? ",wl_user" : "") . "
   FROM $pagelinks, $recentchanges
" . ($uid ? " LEFT OUTER JOIN $watchlist ON wl_user={$uid} AND wl_title=rc_title AND wl_namespace=rc_namespace " : "") . "
   WHERE rc_timestamp > '{$cutoff}'
	{$cmq}
     AND pl_namespace=rc_namespace
     AND pl_title=rc_title
     AND pl_from=$id
$GROUPBY
";
	}
	$res = $dbr->query( $sql, $fname );

	$wgOut->addHTML("&lt; ".$sk->makeLinkObj($nt, "", "redirect=no" )."<br />\n");
	$note = wfMsgExt( "rcnote", array ( 'parseinline' ), $limit, $days, $wgLang->timeAndDate( wfTimestampNow(), true ) );
	$wgOut->addHTML( "<hr />\n{$note}\n<br />" );

	$note = rcDayLimitlinks( $days, $limit, "Recentchangeslinked",
				 "target=" . $nt->getPrefixedURL() . "&hideminor={$hideminor}",
				 false, $mlink );

	$wgOut->addHTML( $note."\n" );

	$list = ChangesList::newFromUser( $wgUser );
	$s = $list->beginRecentChangesList();
	$count = $dbr->numRows( $res );

	$rchanges = array();
	if ( $count ) {
		$counter = 1;
		while ( $limit ) {
			if ( 0 == $count ) { break; }
			$obj = $dbr->fetchObject( $res );
			--$count;
			$rc = RecentChange::newFromRow( $obj );
			$rc->counter = $counter++;
			$s .= $list->recentChangesLine( $rc , !empty( $obj->wl_user) );
			--$limit;
			$rchanges[] = $obj;
		}
	} else {
		$wgOut->addWikiMsg('recentchangeslinked-noresult');
	}
	$s .= $list->endRecentChangesList();

	$dbr->freeResult( $res );
	$wgOut->addHTML( $s );

	global $wgSitename, $wgFeedClasses, $wgContLanguageCode;
	$feedFormat = $wgRequest->getVal( 'feed' );
	if( $feedFormat && isset( $wgFeedClasses[$feedFormat] ) ) {
		$feedTitle = $wgSitename . ' - ' . wfMsgForContent( 'recentchangeslinked-title', $nt->getPrefixedText() ) . ' [' . $wgContLanguageCode . ']';
		$feed = new $wgFeedClasses[$feedFormat]( $feedTitle,
			htmlspecialchars( wfMsgForContent('recentchangeslinked') ), $wgTitle->getFullUrl() );
		
		require_once( "SpecialRecentchanges.php" );
		$wgOut->disable();
		rcDoOutputFeed( $rchanges, $feed );
	}
}