<?php
/**
* Page history
- *
+ *
* Split off from Article.php and Skin.php, 2003-12-22
- * @package MediaWiki
*/
-include_once ( "SpecialValidate.php" );
-
/**
- * @todo document
- * @package MediaWiki
+ * 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
+ * costly LIMIT,offset queries.
+ *
+ * Construct it by passing in an Article, and call $h->history() to print the
+ * history.
+ *
*/
-
class PageHistory {
+ const DIR_PREV = 0;
+ const DIR_NEXT = 1;
+
var $mArticle, $mTitle, $mSkin;
var $lastdate;
var $linesonpage;
- function PageHistory( $article ) {
+ var $mNotificationTimestamp;
+ var $mLatestId = null;
+
+ /**
+ * Construct a new PageHistory.
+ *
+ * @param Article $article
+ * @returns nothing
+ */
+ function __construct($article) {
+ global $wgUser;
+
$this->mArticle =& $article;
$this->mTitle =& $article->mTitle;
+ $this->mNotificationTimestamp = NULL;
+ $this->mSkin = $wgUser->getSkin();
}
- # This shares a lot of issues (and code) with Recent Changes
-
+ /**
+ * Print the history page for an article.
+ *
+ * @returns nothing
+ */
function history() {
- global $wgUser, $wgOut, $wgLang, $wgShowUpdatedMarker, $wgRequest,
- $wgTitle, $wgUseValidation ;
+ global $wgOut, $wgRequest, $wgTitle;
- # If page hasn't changed, client can cache this
+ /*
+ * Allow client caching.
+ */
- if( $wgOut->checkLastModified( $this->mArticle->getTimestamp() ) ){
- # Client cache fresh and headers sent, nothing more to do.
+ 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' ) );
+ /*
+ * Setup page variables.
+ */
+ $wgOut->setPageTitle( wfMsg( 'history-title', $this->mTitle->getPrefixedText() ) );
+ $wgOut->setPageTitleActionText( wfMsg( 'history_short' ) );
$wgOut->setArticleFlag( false );
$wgOut->setArticleRelated( true );
$wgOut->setRobotpolicy( 'noindex,nofollow' );
+ $wgOut->setSyndicated( true );
+ $wgOut->setFeedAppendQuery( 'action=history' );
- $id = $this->mTitle->getArticleID();
- if( $id == 0 ) {
- $wgOut->addHTML( wfMsg( 'nohistory' ) );
- wfProfileOut( $fname );
- return;
- }
-
- $limit = $wgRequest->getInt('limit');
- if (!$limit) $limit = 50;
- $offset = $wgRequest->getText('offset');
- if (!isset($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;
- }
+ $logPage = SpecialPage::getTitleFor( 'Log' );
+ $logLink = $this->mSkin->makeKnownLinkObj( $logPage, wfMsgHtml( 'viewpagelogs' ), 'page=' . $this->mTitle->getPrefixedUrl() );
+ $wgOut->setSubtitle( $logLink );
- if (!is_null($gourl)) {
- $wgOut->redirect($gourl);
- return;
- }
+ $feedType = $wgRequest->getVal( 'feed' );
+ if( $feedType ) {
+ wfProfileOut( $fname );
+ return $this->feed( $feedType );
}
- $firsturl = $wgTitle->escapeLocalURL("action=history&limit={$limit}&go=first");
- $lasturl = $wgTitle->escapeLocalURL("action=history&limit={$limit}");
- $firsttext = wfMsg("histfirst");
- $lasttext = wfMsg("histlast");
-
- $firstlast = "(<a href=\"$firsturl\">$firsttext</a> | <a href=\"$lasturl\">$lasttext</a>)";
-
- /* 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, $oper) = array("ASC", ">");
+ /*
+ * Fail if article doesn't exist.
+ */
+ if( !$this->mTitle->exists() ) {
+ $wgOut->addWikiMsg( 'nohistory' );
+ wfProfileOut( $fname );
+ return;
}
- if ($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;
+ /*
+ * "go=first" means to jump to the last (earliest) history page.
+ * This is deprecated, it no longer appears in the user interface
+ */
+ if ( $wgRequest->getText("go") == 'first' ) {
+ $limit = $wgRequest->getInt( 'limit', 50 );
+ $wgOut->redirect( $wgTitle->getLocalURL( "action=history&limit={$limit}&dir=prev" ) );
+ return;
}
- 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) {
- $urls[] = "<a href=\"".$wgTitle->escapeLocalURL(
- "action=history&offset={$offset}&limit={$num}")."\">".$wgLang->formatNum($num)."</a>";
- }
- $bits = implode($urls, ' | ');
- $numbar = "$firstlast " . wfMsg("viewprevnext",
- "<a href=\"$prevurl\">".wfMsg("prevn", $limit)."</a>",
- "<a href=\"$nexturl\">".wfMsg("nextn", $limit)."</a>",
- $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 .= "<p>" . Validation::link2statistics ( $this->mArticle ) . "</p>" ;
- }
-
- $wgOut->addHTML( $s );
+ wfRunHooks( 'PageHistoryBeforeList', array( &$this->mArticle ) );
+
+ /**
+ * Do the list
+ */
+ $pager = new PageHistoryPager( $this );
+ $this->linesonpage = $pager->getNumRows();
+ $wgOut->addHTML(
+ $pager->getNavigationBar() .
+ $this->beginHistoryList() .
+ $pager->getBody() .
+ $this->endHistoryList() .
+ $pager->getNavigationBar()
+ );
wfProfileOut( $fname );
}
+ /**
+ * Creates begin of history list with a submit button
+ *
+ * @return string HTML output
+ */
function beginHistoryList() {
global $wgTitle;
$this->lastdate = '';
- $s = '<p>' . wfMsg( 'histlegend' ) . '</p>';
+ $s = wfMsgExt( 'histlegend', array( 'parse') );
$s .= '<form action="' . $wgTitle->escapeLocalURL( '-' ) . '" method="get">';
$prefixedkey = htmlspecialchars($wgTitle->getPrefixedDbKey());
+
+ // The following line is SUPPOSED to have double-quotes around the
+ // $prefixedkey variable, because htmlspecialchars() doesn't escape
+ // single-quotes.
+ //
+ // On at least two occasions people have changed it to single-quotes,
+ // which creates invalid HTML and incorrect display of the resulting
+ // link.
+ //
+ // Please do not break this a third time. Thank you for your kind
+ // consideration and cooperation.
+ //
$s .= "<input type='hidden' name='title' value=\"{$prefixedkey}\" />\n";
+
$s .= $this->submitButton();
- $s .= '<ul id="pagehistory">';
+ $s .= '<ul id="pagehistory">' . "\n";
return $s;
}
+ /**
+ * Creates end of history list with a submit button
+ *
+ * @return string HTML output
+ */
function endHistoryList() {
- $last = wfMsg( 'last' );
-
$s = '</ul>';
$s .= $this->submitButton( array( 'id' => 'historysubmit' ) );
$s .= '</form>';
return $s;
}
-
+
+ /**
+ * Creates a submit button
+ *
+ * @param array $bits optional CSS ID
+ * @return string HTML output for the submit button
+ */
function submitButton( $bits = array() ) {
- return ( $this->linesonpage > 0 )
- ? wfElement( 'input', array_merge( $bits,
- array(
+ # Disable submit button if history has 1 revision only
+ if ( $this->linesonpage > 1 ) {
+ return Xml::submitButton( wfMsg( 'compareselectedversions' ),
+ $bits + array(
'class' => 'historysubmit',
- 'type' => 'submit',
'accesskey' => wfMsg( 'accesskey-compareselectedversions' ),
'title' => wfMsg( 'tooltip-compareselectedversions' ),
- 'value' => wfMsg( 'compareselectedversions' ),
- ) ) )
- : '';
+ )
+ );
+ } else {
+ return '';
+ }
}
- function historyLine( $row, $next, $counter = '', $notificationtimestamp = false, $latest = false ) {
- global $wgLang, $wgContLang;
+ /**
+ * 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, $wgLang;
+ $rev = new Revision( $row );
+ $rev->setTitle( $this->mTitle );
- static $message;
- if( !isset( $message ) ) {
- foreach( explode( ' ', 'cur last selectolderversionfordiff selectnewerversionfordiff minoreditletter' ) as $msg ) {
- $message[$msg] = wfMsg( $msg );
+ $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->userLink( $rev->getUser(), $rev->getUserText() )
+ . $this->mSkin->userToolLinks( $rev->getUser(), $rev->getUserText() );
+
+ $s .= "($curlink) ($lastlink) $arbitrary";
+
+ if( $wgUser->isAllowed( 'deleterevision' ) ) {
+ $revdel = SpecialPage::getTitleFor( 'Revisiondelete' );
+ if( $firstInList ) {
+ // We don't currently handle well changing the top revision's settings
+ $del = wfMsgHtml( 'rev-delundel' );
+ } else if( !$rev->userCan( Revision::DELETED_RESTRICTED ) ) {
+ // If revision was hidden from sysops
+ $del = wfMsgHtml( 'rev-delundel' );
+ } else {
+ $del = $this->mSkin->makeKnownLinkObj( $revdel,
+ wfMsg( 'rev-delundel' ),
+ 'target=' . urlencode( $this->mTitle->getPrefixedDbkey() ) .
+ '&oldid=' . urlencode( $rev->getId() ) );
}
+ $s .= " (<small>$del</small>) ";
}
- $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 = '<li>';
- if( $row->rev_deleted ) {
- $s .= '<span class="deleted">';
+ $s .= " $link";
+ #getUser is safe, but this avoids making the invalid untargeted contribs links
+ if( $row->rev_deleted & Revision::DELETED_USER ) {
+ $user = '<span class="history-deleted">' . wfMsg('rev-deleted-user') . '</span>';
}
- $curlink = $this->curLink( $row, $latest );
- $lastlink = $this->lastLink( $row, $next, $counter );
- $arbitrary = $this->diffButtons( $row, $latest, $counter );
- $s .= "({$curlink}) ({$lastlink}) $arbitrary {$link} <span class='user'>{$ul}</span>";
+ $s .= " <span class='history-user'>$user</span>";
if( $row->rev_minor_edit ) {
- $s .= ' ' . wfElement( 'span', array( 'class' => 'minor' ), $message['minoreditletter'] );
+ $s .= ' ' . wfElement( 'span', array( 'class' => 'minor' ), wfMsg( 'minoreditletter') );
}
+ if ( !is_null( $size = $rev->getSize() ) ) {
+ if ( $size == 0 )
+ $stxt = wfMsgHtml( 'historyempty' );
+ else
+ $stxt = wfMsgExt( 'historysize', array( 'parsemag' ), $wgLang->formatNum( $size ) );
+ $s .= " <span class=\"history-size\">$stxt</span>";
+ }
- $s .= $this->mSkin->commentBlock( $row->rev_comment, $this->mTitle );
+ #getComment is safe, but this is better formatted
+ if( $rev->isDeleted( Revision::DELETED_COMMENT ) ) {
+ $s .= " <span class=\"history-deleted\"><span class=\"comment\">" .
+ wfMsgHtml( 'rev-deleted-comment' ) . "</span></span>";
+ } else {
+ $s .= $this->mSkin->revComment( $rev );
+ }
+
if ($notificationtimestamp && ($row->rev_timestamp >= $notificationtimestamp)) {
- $s .= wfMsg( 'updatedmarker' );
+ $s .= ' <span class="updatedmarker">' . wfMsgHtml( 'updatedmarker' ) . '</span>';
}
- if( $row->rev_deleted ) {
- $s .= "</span> " . htmlspecialchars( wfMsg( 'deletedrev' ) );
+ #add blurb about text having been deleted
+ if( $row->rev_deleted & Revision::DELETED_TEXT ) {
+ $s .= ' ' . wfMsgHtml( 'deletedrev' );
}
- $s .= '</li>';
+
+ $tools = array();
+
+ if ( !is_null( $next ) && is_object( $next ) ) {
+ if( !$this->mTitle->getUserPermissionsErrors( 'rollback', $wgUser )
+ && !$this->mTitle->getUserPermissionsErrors( 'edit', $wgUser )
+ && $latest ) {
+ $tools[] = '<span class="mw-rollback-link">'
+ . $this->mSkin->buildRollbackLink( $rev )
+ . '</span>';
+ }
+
+ if( $this->mTitle->quickUserCan( 'edit' ) ) {
+ $undolink = $this->mSkin->makeKnownLinkObj(
+ $this->mTitle,
+ wfMsgHtml( 'editundo' ),
+ 'action=edit&undoafter=' . $next->rev_id . '&undo=' . $rev->getId()
+ );
+ $tools[] = "<span class=\"mw-history-undo\">{$undolink}</span>";
+ }
+ }
+
+ if( $tools ) {
+ $s .= ' (' . implode( ' | ', $tools ) . ')';
+ }
+
+ wfRunHooks( 'PageHistoryLineEnding', array( &$row , &$s ) );
+
+ $s .= "</li>\n";
return $s;
}
-
- function revLink( $row ) {
- global $wgUser, $wgLang;
- $date = $wgLang->timeanddate( $row->rev_timestamp, true );
- if( $row->rev_deleted && !$wgUser->isAllowed( 'undelete' ) ) {
- return $date;
+
+ /** @todo document */
+ function revLink( $rev ) {
+ global $wgLang;
+ $date = $wgLang->timeanddate( wfTimestamp(TS_MW, $rev->getTimestamp()), true );
+ if( $rev->userCan( Revision::DELETED_TEXT ) ) {
+ $link = $this->mSkin->makeKnownLinkObj(
+ $this->mTitle, $date, "oldid=" . $rev->getId() );
} else {
- return $this->mSkin->makeKnownLinkObj(
- $this->mTitle,
- $date,
- 'oldid='.$row->rev_id );
+ $link = $date;
}
+ if( $rev->isDeleted( Revision::DELETED_TEXT ) ) {
+ return '<span class="history-deleted">' . $link . '</span>';
+ }
+ return $link;
}
-
- function curLink( $row, $latest ) {
- global $wgUser;
- $cur = htmlspecialchars( wfMsg( 'cur' ) );
- if( $latest
- || ( $row->rev_deleted && !$wgUser->isAllowed( 'undelete' ) ) ) {
+
+ /** @todo document */
+ function curLink( $rev, $latest ) {
+ $cur = wfMsgExt( 'cur', array( 'escape') );
+ if( $latest || !$rev->userCan( Revision::DELETED_TEXT ) ) {
return $cur;
} else {
return $this->mSkin->makeKnownLinkObj(
- $this->mTitle,
- $cur,
- 'diff=0&oldid=' . $row->rev_id );
+ $this->mTitle, $cur,
+ 'diff=' . $this->getLatestID() .
+ "&oldid=" . $rev->getId() );
}
}
-
- function lastLink( $row, $next, $counter ) {
- global $wgUser;
- $last = htmlspecialchars( wfMsg( 'last' ) );
- if( is_null( $next )
- || ( $row->rev_deleted && !$wgUser->isAllowed( 'undelete' ) ) ) {
+
+ /** @todo document */
+ function lastLink( $rev, $next, $counter ) {
+ $last = wfMsgExt( 'last', array( 'escape' ) );
+ 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(
- $this->mTitle,
- $last,
- "diff={$row->rev_id}&oldid={$next->rev_id}",
- '',
- '',
- ' tabindex="'.$counter.'"' );
+ $this->mTitle,
+ $last,
+ "diff=" . $rev->getId() . "&oldid={$next->rev_id}"
+ /*,
+ '',
+ '',
+ "tabindex={$counter}"*/ );
}
}
-
- function diffButtons( $row, $latest, $counter ) {
- global $wgUser;
+
+ /**
+ * Create radio buttons for page history
+ *
+ * @param object $rev Revision
+ * @param bool $firstInList Is this version the first one?
+ * @param int $counter A counter of what row number we're at, counted from the top row = 1.
+ * @return string HTML output for the radio buttons
+ */
+ function diffButtons( $rev, $firstInList, $counter ) {
if( $this->linesonpage > 1) {
$radio = array(
'type' => 'radio',
- 'value' => $row->rev_id,
- 'title' => wfMsg( 'selectolderversionfordiff' )
+ 'value' => $rev->getId(),
);
- if( $row->rev_deleted && !$wgUser->isAllowed( 'undelete' ) ) {
+
+ if( !$rev->userCan( Revision::DELETED_TEXT ) ) {
$radio['disabled'] = 'disabled';
}
-
- # XXX: move title texts to javascript
- if ( $latest ) {
- $first = wfElement( 'input', array_merge(
+
+ /** @todo: move title texts to javascript */
+ if ( $firstInList ) {
+ $first = Xml::element( 'input', array_merge(
$radio,
array(
'style' => 'visibility:hidden',
} else {
$checkmark = array();
}
- $first = wfElement( 'input', array_merge(
+ $first = Xml::element( 'input', array_merge(
$radio,
$checkmark,
array( 'name' => 'oldid' ) ) );
$checkmark = array();
}
- $second = wfElement( 'input', array_merge(
+ $second = Xml::element( 'input', array_merge(
$radio,
$checkmark,
array( 'name' => 'diff' ) ) );
return '';
}
}
+
+ /** @todo document */
+ function getLatestId() {
+ if( is_null( $this->mLatestId ) ) {
+ $id = $this->mTitle->getArticleID();
+ $db = wfGetDB(DB_SLAVE);
+ $this->mLatestId = $db->selectField( 'page',
+ "page_latest",
+ array( 'page_id' => $id ),
+ 'PageHistory::getLatestID' );
+ }
+ return $this->mLatestId;
+ }
+
+ /**
+ * Fetch an array of revisions, specified by a given limit, offset and
+ * direction. This is now only used by the feeds. It was previously
+ * used by the main UI but that's now handled by the pager.
+ */
+ function fetchRevisions($limit, $offset, $direction) {
+ $fname = 'PageHistory::fetchRevisions';
+
+ $dbr = wfGetDB( DB_SLAVE );
+
+ if ($direction == PageHistory::DIR_PREV)
+ list($dirs, $oper) = array("ASC", ">=");
+ else /* $direction == PageHistory::DIR_NEXT */
+ list($dirs, $oper) = array("DESC", "<=");
+
+ if ($offset)
+ $offsets = array("rev_timestamp $oper '$offset'");
+ else
+ $offsets = array();
+
+ $page_id = $this->mTitle->getArticleID();
+
+ $res = $dbr->select(
+ 'revision',
+ Revision::selectFields(),
+ array_merge(array("rev_page=$page_id"), $offsets),
+ $fname,
+ array('ORDER BY' => "rev_timestamp $dirs",
+ 'USE INDEX' => 'page_timestamp', 'LIMIT' => $limit)
+ );
+
+ $result = array();
+ while (($obj = $dbr->fetchObject($res)) != NULL)
+ $result[] = $obj;
+
+ return $result;
+ }
+
+ /** @todo document */
+ function getNotificationTimestamp() {
+ global $wgUser, $wgShowUpdatedMarker;
+ $fname = 'PageHistory::getNotficationTimestamp';
+
+ if ($this->mNotificationTimestamp !== NULL)
+ return $this->mNotificationTimestamp;
+
+ if ($wgUser->isAnon() || !$wgShowUpdatedMarker)
+ return $this->mNotificationTimestamp = false;
+
+ $dbr = wfGetDB(DB_SLAVE);
+
+ $this->mNotificationTimestamp = $dbr->selectField(
+ 'watchlist',
+ 'wl_notificationtimestamp',
+ array( 'wl_namespace' => $this->mTitle->getNamespace(),
+ 'wl_title' => $this->mTitle->getDBkey(),
+ 'wl_user' => $wgUser->getID()
+ ),
+ $fname);
+
+ // Don't use the special value reserved for telling whether the field is filled
+ if ( is_null( $this->mNotificationTimestamp ) ) {
+ $this->mNotificationTimestamp = false;
+ }
+
+ return $this->mNotificationTimestamp;
+ }
- function getLastOffset($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;
+ /**
+ * Output a subscription feed listing recent edits to this page.
+ * @param string $type
+ */
+ function feed( $type ) {
+ require_once 'SpecialRecentchanges.php';
+
+ global $wgFeed, $wgFeedClasses;
+
+ if ( !$wgFeed ) {
+ global $wgOut;
+ $wgOut->addWikiMsg( 'feed-unavailable' );
+ return;
+ }
+
+ if( !isset( $wgFeedClasses[$type] ) ) {
+ global $wgOut;
+ $wgOut->addWikiMsg( 'feed-invalid' );
+ return;
+ }
+
+ $feed = new $wgFeedClasses[$type](
+ $this->mTitle->getPrefixedText() . ' - ' .
+ wfMsgForContent( 'history-feed-title' ),
+ wfMsgForContent( 'history-feed-description' ),
+ $this->mTitle->getFullUrl( 'action=history' ) );
+
+ $items = $this->fetchRevisions(10, 0, PageHistory::DIR_NEXT);
+ $feed->outHeader();
+ if( $items ) {
+ foreach( $items as $row ) {
+ $feed->outItem( $this->feedItem( $row ) );
+ }
+ } else {
+ $feed->outItem( $this->feedEmpty() );
+ }
+ $feed->outFooter();
+ }
+
+ function feedEmpty() {
+ global $wgOut;
+ return new FeedItem(
+ wfMsgForContent( 'nohistory' ),
+ $wgOut->parse( wfMsgForContent( 'history-feed-empty' ) ),
+ $this->mTitle->getFullUrl(),
+ wfTimestamp( TS_MW ),
+ '',
+ $this->mTitle->getTalkPage()->getFullUrl() );
+ }
+
+ /**
+ * Generate a FeedItem object from a given revision table row
+ * Borrows Recent Changes' feed generation functions for formatting;
+ * includes a diff to the previous revision (if any).
+ *
+ * @param $row
+ * @return FeedItem
+ */
+ function feedItem( $row ) {
+ $rev = new Revision( $row );
+ $rev->setTitle( $this->mTitle );
+ $text = rcFormatDiffRow( $this->mTitle,
+ $this->mTitle->getPreviousRevisionID( $rev->getId() ),
+ $rev->getId(),
+ $rev->getTimestamp(),
+ $rev->getComment() );
+
+ if( $rev->getComment() == '' ) {
+ global $wgContLang;
+ $title = wfMsgForContent( 'history-feed-item-nocomment',
+ $rev->getUserText(),
+ $wgContLang->timeanddate( $rev->getTimestamp() ) );
+ } else {
+ $title = $rev->getUserText() . ": " . $this->stripComment( $rev->getComment() );
+ }
+
+ return new FeedItem(
+ $title,
+ $text,
+ $this->mTitle->getFullUrl( 'diff=' . $rev->getId() . '&oldid=prev' ),
+ $rev->getTimestamp(),
+ $rev->getUserText(),
+ $this->mTitle->getTalkPage()->getFullUrl() );
+ }
+
+ /**
+ * Quickie hack... strip out wikilinks to more legible form from the comment.
+ */
+ function stripComment( $text ) {
+ return preg_replace( '/\[\[([^]]*\|)?([^]]+)\]\]/', '\2', $text );
}
}
-?>
+
+/**
+ * @addtogroup Pager
+ */
+class PageHistoryPager extends ReverseChronologicalPager {
+ public $mLastRow = false, $mPageHistory;
+
+ function __construct( $pageHistory ) {
+ parent::__construct();
+ $this->mPageHistory = $pageHistory;
+ }
+
+ function getQueryInfo() {
+ return array(
+ 'tables' => 'revision',
+ 'fields' => Revision::selectFields(),
+ '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;
+ }
+}