* @package MediaWiki
*/
-define('DIR_PREV', 0);
-define('DIR_NEXT', 1);
-
/**
* This class handles printing the history page for an article. In order to
* be efficient, it uses timestamps rather than offsets for paging, to avoid
*/
class PageHistory {
+ const DIR_PREV = 0;
+ const DIR_NEXT = 1;
+
var $mArticle, $mTitle, $mSkin;
var $lastdate;
var $linesonpage;
$this->mTitle =& $article->mTitle;
$this->mNotificationTimestamp = NULL;
$this->mSkin = $wgUser->getSkin();
-
- $this->defaultLimit = 50;
}
/**
* Setup page variables.
*/
$wgOut->setPageTitle( $this->mTitle->getPrefixedText() );
- $wgOut->setSubtitle( wfMsg( 'revhistory' ) );
$wgOut->setArticleFlag( false );
$wgOut->setArticleRelated( true );
$wgOut->setRobotpolicy( 'noindex,nofollow' );
$wgOut->setSyndicated( true );
+ $logPage = SpecialPage::getTitleFor( 'Log' );
+ $logLink = $this->mSkin->makeKnownLinkObj( $logPage, wfMsgHtml( 'viewpagelogs' ), 'page=' . $this->mTitle->getPrefixedUrl() );
+
+ $subtitle = wfMsgHtml( 'revhistory' ) . '<br />' . $logLink;
+ $wgOut->setSubtitle( $subtitle );
+
$feedType = $wgRequest->getVal( 'feed' );
if( $feedType ) {
wfProfileOut( $fname );
return;
}
- $dbr =& wfGetDB(DB_SLAVE);
-
- /*
- * Extract limit, the number of revisions to show, and
- * offset, the timestamp to begin at, from the URL.
- */
- $limit = $wgRequest->getInt('limit', $this->defaultLimit);
- $offset = $wgRequest->getText('offset');
-
- /* Offset must be an integral. */
- if (!strlen($offset) || !preg_match("/^[0-9]+$/", $offset))
- $offset = 0;
-# $offset = $dbr->timestamp($offset);
- $dboffset = $offset === 0 ? 0 : $dbr->timestamp($offset);
+
/*
- * "go=last" means to jump to the last history page.
+ * "go=first" means to jump to the last (earliest) history page.
+ * This is deprecated, it no longer appears in the user interface
*/
- if (($gowhere = $wgRequest->getText("go")) !== NULL) {
- switch ($gowhere) {
- case "first":
- if (($lastid = $this->getLastOffsetForPaging($this->mTitle->getArticleID(), $limit)) === NULL)
- break;
- $gourl = $wgTitle->getLocalURL("action=history&limit={$limit}&offset=".
- wfTimestamp(TS_MW, $lastid));
- break;
- default:
- $gourl = NULL;
- }
-
- if (!is_null($gourl)) {
- $wgOut->redirect($gourl);
- return;
- }
+ if ( $wgRequest->getText("go") == 'first' ) {
+ $limit = $wgRequest->getInt( 'limit', 50 );
+ $wgOut->redirect( $wgTitle->getLocalURL( "action=history&limit={$limit}&dir=prev" ) );
+ return;
}
- /*
- * Fetch revisions.
- *
- * If the user clicked "previous", we retrieve the revisions backwards,
- * then reverse them. This is to avoid needing to know the timestamp of
- * previous revisions when generating the URL.
- */
- $direction = $this->getDirection();
- $revisions = $this->fetchRevisions($limit, $dboffset, $direction);
- $navbar = $this->makeNavbar($revisions, $offset, $limit, $direction);
-
- /*
- * We fetch one more revision than needed to get the timestamp of the
- * one after this page (and to know if it exists).
- *
- * linesonpage stores the actual number of lines.
- */
- if (count($revisions) < $limit + 1)
- $this->linesonpage = count($revisions);
- else
- $this->linesonpage = count($revisions) - 1;
-
- /* Un-reverse revisions */
- if ($direction == DIR_PREV)
- $revisions = array_reverse($revisions);
-
- /*
- * Print the top navbar.
- */
- $s = $navbar;
- $s .= $this->beginHistoryList();
- $counter = 1;
-
- /*
- * Print each revision, excluding the one-past-the-end, if any.
+ /**
+ * Do the list
*/
- foreach (array_slice($revisions, 0, $limit) as $i => $line) {
- $latest = !$i && $offset == 0;
- $firstInList = !$i;
- $next = isset( $revisions[$i + 1] ) ? $revisions[$i + 1 ] : null;
- $s .= $this->historyLine($line, $next, $counter, $this->getNotificationTimestamp(), $latest, $firstInList);
- $counter++;
- }
-
- /*
- * End navbar.
- */
- $s .= $this->endHistoryList();
- $s .= $navbar;
-
- $wgOut->addHTML( $s );
+ $pager = new PageHistoryPager( $this );
+ $navbar = $pager->getNavigationBar();
+ $this->linesonpage = $pager->getNumRows();
+ $wgOut->addHTML(
+ $pager->getNavigationBar() .
+ $this->beginHistoryList() .
+ $pager->getBody() .
+ $this->endHistoryList() .
+ $pager->getNavigationBar()
+ );
wfProfileOut( $fname );
}
: '';
}
- /** @todo document */
+ /**
+ * Returns a row from the history printout.
+ *
+ * @todo document some more, and maybe clean up the code (some params redundant?)
+ *
+ * @param object $row The database row corresponding to the line (or is it the previous line?).
+ * @param object $next The database row corresponding to the next line (or is it this one?).
+ * @param int $counter Apparently a counter of what row number we're at, counted from the top row = 1.
+ * @param $notificationtimestamp
+ * @param bool $latest Whether this row corresponds to the page's latest revision.
+ * @param bool $firstInList Whether this row corresponds to the first displayed on this history page.
+ * @return string HTML output for the row
+ */
function historyLine( $row, $next, $counter = '', $notificationtimestamp = false, $latest = false, $firstInList = false ) {
global $wgUser;
$rev = new Revision( $row );
+ $rev->setTitle( $this->mTitle );
$s = '<li>';
$curlink = $this->curLink( $rev, $latest );
$lastlink = $this->lastLink( $rev, $next, $counter );
$arbitrary = $this->diffButtons( $rev, $firstInList, $counter );
$link = $this->revLink( $rev );
- $user = $this->mSkin->revUserLink( $rev );
-
+
+ $user = $this->mSkin->userLink( $rev->getUser(), $rev->getUserText() )
+ . $this->mSkin->userToolLinks( $rev->getUser(), $rev->getUserText() );
+
$s .= "($curlink) ($lastlink) $arbitrary";
if( $wgUser->isAllowed( 'deleterevision' ) ) {
- $revdel = Title::makeTitle( NS_SPECIAL, 'Revisiondelete' );
+ $revdel = SpecialPage::getTitleFor( 'Revisiondelete' );
if( $firstInList ) {
// We don't currently handle well changing the top revision's settings
$del = wfMsgHtml( 'rev-delundel' );
if ($notificationtimestamp && ($row->rev_timestamp >= $notificationtimestamp)) {
$s .= ' <span class="updatedmarker">' . wfMsgHtml( 'updatedmarker' ) . '</span>';
}
- if( $row->rev_deleted & MW_REV_DELETED_TEXT ) {
+ if( $row->rev_deleted & Revision::DELETED_TEXT ) {
$s .= ' ' . wfMsgHtml( 'deletedrev' );
}
+ if( $wgUser->isAllowed( 'rollback' ) && $latest ) {
+ $s .= ' '.$this->mSkin->generateRollback( $rev );
+ }
$s .= "</li>\n";
return $s;
function revLink( $rev ) {
global $wgLang;
$date = $wgLang->timeanddate( wfTimestamp(TS_MW, $rev->getTimestamp()), true );
- if( $rev->userCan( MW_REV_DELETED_TEXT ) ) {
+ if( $rev->userCan( Revision::DELETED_TEXT ) ) {
$link = $this->mSkin->makeKnownLinkObj(
$this->mTitle, $date, "oldid=" . $rev->getId() );
} else {
$link = $date;
}
- if( $rev->isDeleted( MW_REV_DELETED_TEXT ) ) {
+ if( $rev->isDeleted( Revision::DELETED_TEXT ) ) {
return '<span class="history-deleted">' . $link . '</span>';
}
return $link;
/** @todo document */
function curLink( $rev, $latest ) {
$cur = wfMsgExt( 'cur', array( 'escape') );
- if( $latest || !$rev->userCan( MW_REV_DELETED_TEXT ) ) {
+ if( $latest || !$rev->userCan( Revision::DELETED_TEXT ) ) {
return $cur;
} else {
return $this->mSkin->makeKnownLinkObj(
/** @todo document */
function lastLink( $rev, $next, $counter ) {
$last = wfMsgExt( 'last', array( 'escape' ) );
- if( is_null( $next ) ) {
- if( $rev->getTimestamp() == $this->getEarliestOffset() ) {
- return $last;
- } else {
- // Cut off by paging; there are more behind us...
- return $this->mSkin->makeKnownLinkObj(
- $this->mTitle,
- $last,
- "diff=" . $rev->getId() . "&oldid=prev" );
- }
- } elseif( !$rev->userCan( MW_REV_DELETED_TEXT ) ) {
+ if ( is_null( $next ) ) {
+ # Probably no next row
+ return $last;
+ } elseif ( $next === 'unknown' ) {
+ # Next row probably exists but is unknown, use an oldid=prev link
+ return $this->mSkin->makeKnownLinkObj(
+ $this->mTitle,
+ $last,
+ "diff=" . $rev->getId() . "&oldid=prev" );
+ } elseif( !$rev->userCan( Revision::DELETED_TEXT ) ) {
return $last;
} else {
return $this->mSkin->makeKnownLinkObj(
# 'title' => wfMsgHtml( 'selectolderversionfordiff' )
);
- if( !$rev->userCan( MW_REV_DELETED_TEXT ) ) {
+ if( !$rev->userCan( Revision::DELETED_TEXT ) ) {
$radio['disabled'] = 'disabled';
}
}
}
- /** @todo document */
- function getLatestOffset( $id = null ) {
- if ( $id === null) $id = $this->mTitle->getArticleID();
- return $this->getExtremeOffset( $id, 'max' );
- }
-
- /** @todo document */
- function getEarliestOffset( $id = null ) {
- if ( $id === null) $id = $this->mTitle->getArticleID();
- return $this->getExtremeOffset( $id, 'min' );
- }
-
- /** @todo document */
- function getExtremeOffset( $id, $func ) {
- $db =& wfGetDB(DB_SLAVE);
- return $db->selectField( 'revision',
- "$func(rev_timestamp)",
- array( 'rev_page' => $id ),
- 'PageHistory::getExtremeOffset' );
- }
-
/** @todo document */
function getLatestId() {
if( is_null( $this->mLatestId ) ) {
$id = $this->mTitle->getArticleID();
$db =& wfGetDB(DB_SLAVE);
- $this->mLatestId = $db->selectField( 'revision',
- "max(rev_id)",
- array( 'rev_page' => $id ),
+ $this->mLatestId = $db->selectField( 'page',
+ "page_latest",
+ array( 'page_id' => $id ),
'PageHistory::getLatestID' );
}
return $this->mLatestId;
}
- /** @todo document */
- function getLastOffsetForPaging( $id, $step ) {
- $fname = 'PageHistory::getLastOffsetForPaging';
-
- $dbr =& wfGetDB(DB_SLAVE);
- $res = $dbr->select(
- 'revision',
- 'rev_timestamp',
- "rev_page=$id",
- $fname,
- array('ORDER BY' => 'rev_timestamp ASC', 'LIMIT' => $step));
-
- $n = $dbr->numRows( $res );
- $last = null;
- while( $obj = $dbr->fetchObject( $res ) ) {
- $last = $obj->rev_timestamp;
- }
- $dbr->freeResult( $res );
- return $last;
- }
-
/**
- * @return returns the direction of browsing watchlist
+ * Fetch an array of revisions, specified by a given limit, offset and
+ * direction. This is now only used by the feeds. It was previously
+ * used by the main UI but that's now handled by the pager.
*/
- function getDirection() {
- global $wgRequest;
- if ($wgRequest->getText("dir") == "prev")
- return DIR_PREV;
- else
- return DIR_NEXT;
- }
-
- /** @todo document */
function fetchRevisions($limit, $offset, $direction) {
$fname = 'PageHistory::fetchRevisions';
$dbr =& wfGetDB( DB_SLAVE );
- if ($direction == DIR_PREV)
+ if ($direction == PageHistory::DIR_PREV)
list($dirs, $oper) = array("ASC", ">=");
- else /* $direction == DIR_NEXT */
+ else /* $direction == PageHistory::DIR_NEXT */
list($dirs, $oper) = array("DESC", "<=");
if ($offset)
'wl_user' => $wgUser->getID()
),
$fname);
-
- return $this->mNotificationTimestamp;
- }
-
- /** @todo document */
- function makeNavbar($revisions, $offset, $limit, $direction) {
- global $wgLang;
-
- $revisions = array_slice($revisions, 0, $limit);
-
- $latestTimestamp = wfTimestamp(TS_MW, $this->getLatestOffset());
- $earliestTimestamp = wfTimestamp(TS_MW, $this->getEarliestOffset());
-
- /*
- * When we're displaying previous revisions, we need to reverse
- * the array, because it's queried in reverse order.
- */
- if ($direction == DIR_PREV)
- $revisions = array_reverse($revisions);
-
- /*
- * lowts is the timestamp of the first revision on this page.
- * hights is the timestamp of the last revision.
- */
-
- $lowts = $hights = 0;
-
- if( count( $revisions ) ) {
- $latestShown = wfTimestamp(TS_MW, $revisions[0]->rev_timestamp);
- $earliestShown = wfTimestamp(TS_MW, $revisions[count($revisions) - 1]->rev_timestamp);
- }
-
- /* Don't announce the limit everywhere if it's the default */
- $usefulLimit = $limit == $this->defaultLimit ? '' : $limit;
-
- $urls = array();
- foreach (array(20, 50, 100, 250, 500) as $num) {
- $urls[] = $this->MakeLink( $wgLang->formatNum($num),
- array('offset' => $offset == 0 ? '' : wfTimestamp(TS_MW, $offset), 'limit' => $num, ) );
- }
-
- $bits = implode($urls, ' | ');
-
- wfDebug("latestShown=$latestShown latestTimestamp=$latestTimestamp\n");
- if( $latestShown < $latestTimestamp ) {
- $prevtext = $this->MakeLink( wfMsgHtml("prevn", $limit),
- array( 'dir' => 'prev', 'offset' => $latestShown, 'limit' => $usefulLimit ) );
- $lasttext = $this->MakeLink( wfMsgHtml('histlast'),
- array( 'limit' => $usefulLimit ) );
- } else {
- $prevtext = wfMsgHtml("prevn", $limit);
- $lasttext = wfMsgHtml('histlast');
- }
-
- wfDebug("earliestShown=$earliestShown earliestTimestamp=$earliestTimestamp\n");
- if( $earliestShown > $earliestTimestamp ) {
- $nexttext = $this->MakeLink( wfMsgHtml("nextn", $limit),
- array( 'offset' => $earliestShown, 'limit' => $usefulLimit ) );
- $firsttext = $this->MakeLink( wfMsgHtml('histfirst'),
- array( 'go' => 'first', 'limit' => $usefulLimit ) );
- } else {
- $nexttext = wfMsgHtml("nextn", $limit);
- $firsttext = wfMsgHtml('histfirst');
+
+ // Don't use the special value reserved for telling whether the field is filled
+ if ( is_null( $this->mNotificationTimestamp ) ) {
+ $this->mNotificationTimestamp = false;
}
- $firstlast = "($lasttext | $firsttext)";
-
- return "$firstlast " . wfMsgHtml("viewprevnext", $prevtext, $nexttext, $bits);
- }
-
- function MakeLink($text, $query = NULL) {
- if ( $query === null ) return $text;
- return $this->mSkin->makeKnownLinkObj(
- $this->mTitle, $text,
- wfArrayToCGI( $query, array( 'action' => 'history' )));
+ return $this->mNotificationTimestamp;
}
-
/**
* Output a subscription feed listing recent edits to this page.
* @param string $type
*/
function feed( $type ) {
+ require_once 'SpecialRecentchanges.php';
+
global $wgFeedClasses;
if( !isset( $wgFeedClasses[$type] ) ) {
global $wgOut;
wfMsgForContent( 'history-feed-description' ),
$this->mTitle->getFullUrl( 'action=history' ) );
- $items = $this->fetchRevisions(10, 0, DIR_NEXT);
+ $items = $this->fetchRevisions(10, 0, PageHistory::DIR_NEXT);
$feed->outHeader();
if( $items ) {
foreach( $items as $row ) {
*/
function feedItem( $row ) {
$rev = new Revision( $row );
+ $rev->setTitle( $this->mTitle );
$text = rcFormatDiffRow( $this->mTitle,
$this->mTitle->getPreviousRevisionID( $rev->getId() ),
$rev->getId(),
function stripComment( $text ) {
return preg_replace( '/\[\[([^]]*\|)?([^]]+)\]\]/', '\2', $text );
}
+}
+
+
+class PageHistoryPager extends ReverseChronologicalPager {
+ public $mLastRow = false, $mPageHistory;
+
+ function __construct( $pageHistory ) {
+ parent::__construct();
+ $this->mPageHistory = $pageHistory;
+ }
+ function getQueryInfo() {
+ return array(
+ 'tables' => 'revision',
+ 'fields' => array('rev_id', 'rev_page', 'rev_text_id', 'rev_user', 'rev_comment', 'rev_user_text',
+ 'rev_timestamp', 'rev_minor_edit', 'rev_deleted'),
+ 'conds' => array('rev_page' => $this->mPageHistory->mTitle->getArticleID() ),
+ 'options' => array( 'USE INDEX' => 'page_timestamp' )
+ );
+ }
+
+ function getIndexField() {
+ return 'rev_timestamp';
+ }
+ function formatRow( $row ) {
+ if ( $this->mLastRow ) {
+ $latest = $this->mCounter == 1 && $this->mOffset == '';
+ $firstInList = $this->mCounter == 1;
+ $s = $this->mPageHistory->historyLine( $this->mLastRow, $row, $this->mCounter++,
+ $this->mPageHistory->getNotificationTimestamp(), $latest, $firstInList );
+ } else {
+ $s = '';
+ }
+ $this->mLastRow = $row;
+ return $s;
+ }
+
+ function getStartBody() {
+ $this->mLastRow = false;
+ $this->mCounter = 1;
+ return '';
+ }
+
+ function getEndBody() {
+ if ( $this->mLastRow ) {
+ $latest = $this->mCounter == 1 && $this->mOffset == 0;
+ $firstInList = $this->mCounter == 1;
+ if ( $this->mIsBackwards ) {
+ # Next row is unknown, but for UI reasons, probably exists if an offset has been specified
+ if ( $this->mOffset == '' ) {
+ $next = null;
+ } else {
+ $next = 'unknown';
+ }
+ } else {
+ # The next row is the past-the-end row
+ $next = $this->mPastTheEndRow;
+ }
+ $s = $this->mPageHistory->historyLine( $this->mLastRow, $next, $this->mCounter++,
+ $this->mPageHistory->getNotificationTimestamp(), $latest, $firstInList );
+ } else {
+ $s = '';
+ }
+ return $s;
+ }
}
?>