mArticle =& $article;
$this->mTitle =& $article->mTitle;
}
# This shares a lot of issues (and code) with Recent Changes
function history() {
global $wgUser, $wgOut, $wgLang, $wgShowUpdatedMarker, $wgRequest,
$wgTitle, $wgUseValidation ;
# If page hasn't changed, client can cache this
if( $wgOut->checkLastModified( $this->mArticle->getTimestamp() ) ){
# Client cache fresh and headers sent, nothing more to do.
return;
}
$fname = 'PageHistory::history';
wfProfileIn( $fname );
$wgOut->setPageTitle( $this->mTitle->getPrefixedText() );
$wgOut->setSubtitle( wfMsg( 'revhistory' ) );
$wgOut->setArticleFlag( false );
$wgOut->setArticleRelated( true );
$wgOut->setRobotpolicy( 'noindex,nofollow' );
$id = $this->mTitle->getArticleID();
if( $id == 0 ) {
$wgOut->addHTML( wfMsg( 'nohistory' ) );
wfProfileOut( $fname );
return;
}
$limit = $wgRequest->getInt('limit');
if (!$limit) $limit = 50;
$offset = $wgRequest->getText('offset');
if (!strlen($offset) || !preg_match("/^[0-9]+$/", $offset)) $offset = 0;
if (($gowhere = $wgRequest->getText("go")) !== NULL) {
switch ($gowhere) {
case "first":
if (($lastid = $this->getLastOffset($id, $limit)) === NULL)
break;
$gourl = $wgTitle->getLocalURL("action=history&limit={$limit}&offset={$lastid}");
break;
default:
$gourl = NULL;
}
if (!is_null($gourl)) {
$wgOut->redirect($gourl);
return;
}
}
$firsturl = $wgTitle->escapeLocalURL("action=history&limit={$limit}&go=first");
$lasturl = $wgTitle->escapeLocalURL("action=history&limit={$limit}");
$firsttext = wfMsg("histfirst");
$lasttext = wfMsg("histlast");
$firstlast = "($firsttext | $lasttext)";
/* Check one extra row to see whether we need to show 'next' and diff links */
$limitplus = $limit + 1;
$namespace = $this->mTitle->getNamespace();
$title = $this->mTitle->getText();
$uid = $wgUser->getID();
$db =& wfGetDB( DB_SLAVE );
if ($uid && $wgShowUpdatedMarker )
$notificationtimestamp = $db->selectField( 'watchlist',
'wl_notificationtimestamp',
array( 'wl_namespace' => $namespace, 'wl_title' => $this->mTitle->getDBkey(), 'wl_user' => $uid ),
$fname );
else $notificationtimestamp = false;
$use_index = $db->useIndexClause( 'page_timestamp' );
$revision = $db->tableName( 'revision' );
$limits = $offsets = "";
$dir = 0;
if ($wgRequest->getText("dir") == "prev")
$dir = 1;
list($dirs, $oper) = array("DESC", "<");
if ($dir) {
list($dirs, $oper) = array("ASC", ">");
}
if ($offset)
$offsets .= " AND rev_timestamp $oper '$offset' ";
if ($limit)
$limits .= " LIMIT $limitplus ";
$sql = "SELECT rev_id,rev_user," .
"rev_comment,rev_user_text,rev_timestamp,rev_minor_edit,rev_deleted ".
"FROM $revision $use_index " .
"WHERE rev_page=$id " .
$offsets .
"ORDER BY rev_timestamp $dirs " .
$limits;
$res = $db->query( $sql, $fname );
$revs = $db->numRows( $res );
if( $revs < $limitplus ) // the sql above tries to fetch one extra
$this->linesonpage = $revs;
else
$this->linesonpage = $revs - 1;
$atend = ($revs < $limitplus);
$this->mSkin = $wgUser->getSkin();
$pages = array();
$lowts = 0;
while ($line = $db->fetchObject($res)) {
$pages[] = $line;
}
if ($dir) $pages = array_reverse($pages);
if (count($pages) > 1)
$lowts = $pages[count($pages) - 2]->rev_timestamp;
else
$lowts = $pages[count($pages) - 1]->rev_timestamp;
$prevurl = $wgTitle->escapeLocalURL("action=history&dir=prev&offset={$offset}&limit={$limit}");
$nexturl = $wgTitle->escapeLocalURL("action=history&offset={$lowts}&limit={$limit}");
$urls = array();
foreach (array(20, 50, 100, 250, 500) as $num) {
$urls[] = "escapeLocalURL(
"action=history&offset={$offset}&limit={$num}")."\">".$wgLang->formatNum($num)."";
}
$bits = implode($urls, ' | ');
if ($offset)
$prevtext = "".wfMsg("prevn", $limit)."";
else $prevtext = wfMsg("prevn", $limit);
if ($revs >= $limitplus)
$nexttext = "".wfMsg("nextn", $limit)."";
else $nexttext = wfMsg("nextn", $limit);
$numbar = "$firstlast " . wfMsg("viewprevnext", $prevtext, $nexttext, $bits);
$s = $numbar;
$s .= $this->beginHistoryList();
$counter = 1;
foreach($pages as $i => $line) {
$first = ($counter == 1 && $offset == 0);
$next = isset( $pages[$i + 1] ) ? $pages[$i + 1 ] : null;
$s .= $this->historyLine( $line, $next, $counter, $notificationtimestamp, $first );
$counter++;
}
$s .= $this->endHistoryList( !$atend );
$s .= $numbar;
# Validation line
if ( isset ( $wgUseValidation ) && $wgUseValidation ) {
$s .= "" . Validation::link2statistics ( $this->mArticle ) . "
" ;
}
$wgOut->addHTML( $s );
wfProfileOut( $fname );
}
function beginHistoryList() {
global $wgTitle;
$this->lastdate = '';
$s = '' . wfMsg( 'histlegend' ) . '
';
$s .= '';
return $s;
}
function submitButton( $bits = array() ) {
return ( $this->linesonpage > 0 )
? wfElement( 'input', array_merge( $bits,
array(
'class' => 'historysubmit',
'type' => 'submit',
'accesskey' => wfMsg( 'accesskey-compareselectedversions' ),
'title' => wfMsg( 'tooltip-compareselectedversions' ),
'value' => wfMsg( 'compareselectedversions' ),
) ) )
: '';
}
function historyLine( $row, $next, $counter = '', $notificationtimestamp = false, $latest = false ) {
global $wgLang, $wgContLang;
static $message;
if( !isset( $message ) ) {
foreach( explode( ' ', 'cur last selectolderversionfordiff selectnewerversionfordiff minoreditletter' ) as $msg ) {
$message[$msg] = wfMsg( $msg );
}
}
$link = $this->revLink( $row );
if ( 0 == $row->rev_user ) {
$contribsPage =& Title::makeTitle( NS_SPECIAL, 'Contributions' );
$ul = $this->mSkin->makeKnownLinkObj( $contribsPage,
htmlspecialchars( $row->rev_user_text ),
'target=' . urlencode( $row->rev_user_text ) );
} else {
$userPage =& Title::makeTitle( NS_USER, $row->rev_user_text );
$ul = $this->mSkin->makeLinkObj( $userPage , htmlspecialchars( $row->rev_user_text ) );
}
$s = '';
if( $row->rev_deleted ) {
$s .= '';
}
$curlink = $this->curLink( $row, $latest );
$lastlink = $this->lastLink( $row, $next, $counter );
$arbitrary = $this->diffButtons( $row, $latest, $counter );
$s .= "({$curlink}) ({$lastlink}) $arbitrary {$link} {$ul}";
if( $row->rev_minor_edit ) {
$s .= ' ' . wfElement( 'span', array( 'class' => 'minor' ), $message['minoreditletter'] );
}
$s .= $this->mSkin->commentBlock( $row->rev_comment, $this->mTitle );
if ($notificationtimestamp && ($row->rev_timestamp >= $notificationtimestamp)) {
$s .= wfMsg( 'updatedmarker' );
}
if( $row->rev_deleted ) {
$s .= " " . htmlspecialchars( wfMsg( 'deletedrev' ) );
}
$s .= '';
return $s;
}
function revLink( $row ) {
global $wgUser, $wgLang;
$date = $wgLang->timeanddate( $row->rev_timestamp, true );
if( $row->rev_deleted && !$wgUser->isAllowed( 'undelete' ) ) {
return $date;
} else {
return $this->mSkin->makeKnownLinkObj(
$this->mTitle,
$date,
'oldid='.$row->rev_id );
}
}
function curLink( $row, $latest ) {
global $wgUser;
$cur = htmlspecialchars( wfMsg( 'cur' ) );
if( $latest
|| ( $row->rev_deleted && !$wgUser->isAllowed( 'undelete' ) ) ) {
return $cur;
} else {
return $this->mSkin->makeKnownLinkObj(
$this->mTitle,
$cur,
'diff=0&oldid=' . $row->rev_id );
}
}
function lastLink( $row, $next, $counter ) {
global $wgUser;
$last = htmlspecialchars( wfMsg( 'last' ) );
if( is_null( $next )
|| ( $row->rev_deleted && !$wgUser->isAllowed( 'undelete' ) ) ) {
return $last;
} else {
return $this->mSkin->makeKnownLinkObj(
$this->mTitle,
$last,
"diff={$row->rev_id}&oldid={$next->rev_id}",
'',
'',
' tabindex="'.$counter.'"' );
}
}
function diffButtons( $row, $latest, $counter ) {
global $wgUser;
if( $this->linesonpage > 1) {
$radio = array(
'type' => 'radio',
'value' => $row->rev_id,
'title' => wfMsg( 'selectolderversionfordiff' )
);
if( $row->rev_deleted && !$wgUser->isAllowed( 'undelete' ) ) {
$radio['disabled'] = 'disabled';
}
# XXX: move title texts to javascript
if ( $latest ) {
$first = wfElement( 'input', array_merge(
$radio,
array(
'style' => 'visibility:hidden',
'name' => 'oldid' ) ) );
$checkmark = array( 'checked' => 'checked' );
} else {
if( $counter == 2 ) {
$checkmark = array( 'checked' => 'checked' );
} else {
$checkmark = array();
}
$first = wfElement( 'input', array_merge(
$radio,
$checkmark,
array( 'name' => 'oldid' ) ) );
$checkmark = array();
}
$second = wfElement( 'input', array_merge(
$radio,
$checkmark,
array( 'name' => 'diff' ) ) );
return $first . $second;
} else {
return '';
}
}
function getLastOffset($id, $step = 50) {
$db =& wfGetDB(DB_SLAVE);
$sql = "SELECT rev_timestamp FROM revision WHERE rev_page = $id ORDER BY rev_timestamp ASC LIMIT $step";
$res = $db->query($sql, "getLastOffset");
$n = $db->numRows($res);
if ($n == 0)
return NULL;
while ($n--)
$obj = $db->fetchObject($res);
return $obj->rev_timestamp;
}
}
?>