PHP Revision::insertOn方法代码示例

 protected function makeRevision($props = null)
 {
     if ($props === null) {
         $props = [];
     }
     if (!isset($props['content']) && !isset($props['text'])) {
         $props['text'] = 'Lorem Ipsum';
     }
     if (!isset($props['comment'])) {
         $props['comment'] = 'just a test';
     }
     if (!isset($props['page'])) {
         $props['page'] = $this->the_page->getId();
     }
     $rev = new Revision($props);
     $dbw = wfGetDB(DB_MASTER);
     $rev->insertOn($dbw);
     return $rev;
 }

 /**
  * Move page to non-existing title.
  * @param &$nt \type{Title} the new Title
  * @param $reason \type{\string} The reason for the move
  * @param $createRedirect \type{\bool} Whether to create a redirect from the old title to the new title
  *  Ignored if the user doesn't have the suppressredirect right
  */
 private function moveToNewTitle(&$nt, $reason = '', $createRedirect = true)
 {
     global $wgUseSquid, $wgUser;
     $fname = 'MovePageForm::moveToNewTitle';
     $comment = wfMsgForContent('1movedto2', $this->getPrefixedText(), $nt->getPrefixedText());
     if ($reason) {
         $comment .= wfMsgExt('colon-separator', array('escapenoentities', 'content'));
         $comment .= $reason;
     }
     $newid = $nt->getArticleID();
     $oldid = $this->getArticleID();
     $latest = $this->getLatestRevId();
     $dbw = wfGetDB(DB_MASTER);
     $now = $dbw->timestamp();
     # Save a null revision in the page's history notifying of the move
     $nullRevision = Revision::newNullRevision($dbw, $oldid, $comment, true);
     $nullRevId = $nullRevision->insertOn($dbw);
     $article = new Article($this);
     wfRunHooks('NewRevisionFromEditComplete', array($article, $nullRevision, $latest, $wgUser));
     # Rename page entry
     $dbw->update('page', array('page_touched' => $now, 'page_namespace' => $nt->getNamespace(), 'page_title' => $nt->getDBkey(), 'page_latest' => $nullRevId), array('page_id' => $oldid), $fname);
     $nt->resetArticleID($oldid);
     if ($createRedirect || !$wgUser->isAllowed('suppressredirect')) {
         # Insert redirect
         $mwRedir = MagicWord::get('redirect');
         $redirectText = $mwRedir->getSynonym(0) . ' [[' . $nt->getPrefixedText() . "]]\n";
         $redirectArticle = new Article($this);
         $newid = $redirectArticle->insertOn($dbw);
         $redirectRevision = new Revision(array('page' => $newid, 'comment' => $comment, 'text' => $redirectText));
         $redirectRevision->insertOn($dbw);
         $redirectArticle->updateRevisionOn($dbw, $redirectRevision, 0);
         wfRunHooks('NewRevisionFromEditComplete', array($redirectArticle, $redirectRevision, false, $wgUser));
         # Record the just-created redirect's linking to the page
         $dbw->insert('pagelinks', array('pl_from' => $newid, 'pl_namespace' => $nt->getNamespace(), 'pl_title' => $nt->getDBkey()), $fname);
         $redirectSuppressed = false;
     } else {
         $this->resetArticleID(0);
         $redirectSuppressed = true;
     }
     # Move an image if this is a file
     if ($this->getNamespace() == NS_FILE) {
         $file = wfLocalFile($this);
         if ($file->exists()) {
             $status = $file->move($nt);
             if (!$status->isOk()) {
                 $dbw->rollback();
                 return $status->getErrorsArray();
             }
         }
     }
     # Log the move
     $log = new LogPage('move');
     $log->addEntry('move', $this, $reason, array(1 => $nt->getPrefixedText(), 2 => $redirectSuppressed));
     # Purge caches as per article creation
     Article::onArticleCreate($nt);
     # Purge old title from squid
     # The new title, and links to the new title, are purged in Article::onArticleCreate()
     $this->purgeSquid();
 }

                 $u->saveSettings();
                 $u->addGroup("sysop");
                 $u->addGroup("bureaucrat");
                 print "<li>Created sysop account <tt>" . htmlspecialchars($conf->SysopName) . "</tt>.</li>\n";
             } else {
                 print "<li>Could not create user - already exists!</li>\n";
             }
         }
     } else {
         print "<li>Skipped sysop account creation, no name given.</li>\n";
     }
     $titleobj = Title::newFromText(wfMsgNoDB("mainpage"));
     $article = new Article($titleobj);
     $newid = $article->insertOn($wgDatabase);
     $revision = new Revision(array('page' => $newid, 'text' => wfMsg('mainpagetext') . "\n\n" . wfMsgNoTrans('mainpagedocfooter'), 'comment' => '', 'user' => 0, 'user_text' => 'MediaWiki default'));
     $revid = $revision->insertOn($wgDatabase);
     $article->updateRevisionOn($wgDatabase, $revision);
 }
 /* Write out the config file now that all is well */
 print "<li style=\"list-style: none\">\n";
 print "<p>Creating LocalSettings.php...</p>\n\n";
 $localSettings = "<" . "?php{$endl}{$local}";
 // Fix up a common line-ending problem (due to CVS on Windows)
 $localSettings = str_replace("\r\n", "\n", $localSettings);
 $f = fopen("LocalSettings.php", 'xt');
 if ($f == false) {
     print "</li>\n";
     dieout("<p>Couldn't write out LocalSettings.php. Check that the directory permissions are correct and that there isn't already a file of that name here...</p>\n" . "<p>Here's the file that would have been written, try to paste it into place manually:</p>\n" . "<pre>\n" . htmlspecialchars($localSettings) . "</pre>\n");
 }
 if (fwrite($f, $localSettings)) {
     fclose($f);

 function importOldRevision()
 {
     $fname = "WikiImporter::importOldRevision";
     $dbw =& wfGetDB(DB_MASTER);
     # Sneak a single revision into place
     $user = User::newFromName($this->getUser());
     if ($user) {
         $userId = intval($user->getId());
         $userText = $user->getName();
     } else {
         $userId = 0;
         $userText = $this->getUser();
     }
     // avoid memory leak...?
     $linkCache =& LinkCache::singleton();
     $linkCache->clear();
     $article = new Article($this->title);
     $pageId = $article->getId();
     if ($pageId == 0) {
         # must create the page...
         $pageId = $article->insertOn($dbw);
         $created = true;
     } else {
         $created = false;
     }
     # FIXME: Check for exact conflicts
     # FIXME: Use original rev_id optionally
     # FIXME: blah blah blah
     #if( $numrows > 0 ) {
     #	return wfMsg( "importhistoryconflict" );
     #}
     # Insert the row
     $revision = new Revision(array('page' => $pageId, 'text' => $this->getText(), 'comment' => $this->getComment(), 'user' => $userId, 'user_text' => $userText, 'timestamp' => $this->timestamp, 'minor_edit' => $this->minor));
     $revId = $revision->insertOn($dbw);
     $changed = $article->updateIfNewerOn($dbw, $revision);
     if ($created) {
         wfDebug(__METHOD__ . ": running onArticleCreate\n");
         Article::onArticleCreate($this->title);
     } else {
         if ($changed) {
             wfDebug(__METHOD__ . ": running onArticleEdit\n");
             Article::onArticleEdit($this->title);
         }
     }
     if ($created || $changed) {
         wfDebug(__METHOD__ . ": running edit updates\n");
         $article->editUpdates($this->getText(), $this->getComment(), $this->minor, $this->timestamp, $revId);
     }
     return true;
 }

 function insertNewArticle($article, $text, $summary, $isminor, $watchthis, $suppressRC = false, $comment = false)
 {
     global $wgOut, $wgUser;
     global $wgUseSquid, $wgDeferredUpdateList, $wgInternalServer;
     $fname = 'Article::insertNewArticle';
     wfProfileIn($fname);
     $article->mGoodAdjustment = $article->isCountable($text);
     $article->mTotalAdjustment = 1;
     $ns = $article->mTitle->getNamespace();
     $ttl = $article->mTitle->getDBkey();
     # If this is a comment, add the summary as headline
     if ($comment && $summary != "") {
         $text = "== {$summary} ==\n\n" . $text;
     }
     $text = $article->preSaveTransform($text);
     $isminor = $isminor && $wgUser->isLoggedIn() ? 1 : 0;
     $now = wfTimestampNow();
     $dbw =& wfGetDB(DB_MASTER);
     # Add the page record; stake our claim on this title!
     $newid = $article->insertOn($dbw);
     # Save the revision text...
     $revision = new Revision(array('page' => $newid, 'comment' => $summary, 'minor_edit' => $isminor, 'text' => $text));
     $revisionId = $revision->insertOn($dbw);
     $article->mTitle->resetArticleID($newid);
     # Update the page record with revision data
     $article->updateRevisionOn($dbw, $revision, 0);
     Article::onArticleCreate($article->mTitle);
     if (!$suppressRC) {
         RecentChange::notifyNew($now, $article->mTitle, $isminor, $wgUser, $summary, 'default', '', strlen($text), $revisionId);
     }
     if ($watchthis) {
         #if(!$article->mTitle->userIsWatching()) $this->watch($article);
         if (wfRunHooks('WatchArticle', array(&$wgUser, &$article))) {
             $wgUser->addWatch($article->mTitle);
             $wgUser->saveSettings();
             wfRunHooks('WatchArticleComplete', array(&$wgUser, &$article));
         }
     }
     # The talk page isn't in the regular link tables, so we need to update manually:
     $talkns = $ns ^ 1;
     # talk -> normal; normal -> talk
     $dbw->update('page', array('page_touched' => $dbw->timestamp($now)), array('page_namespace' => $talkns, 'page_title' => $ttl), $fname);
     # standard deferred updates
     $article->editUpdates($text, $summary, $isminor, $now, $revisionId);
     if ($this->mprotect == "yes") {
         # $this->mprotect
         # $this->mprotect_reason
         $id = $article->mTitle->getArticleID();
         $limit = 'sysop';
         $dbw->update('page', array('page_touched' => $dbw->timestamp(), 'page_restrictions' => (string) $limit), array('page_id' => $id), 'Article::protect');
         $restrictions = "move=" . $limit;
         $restrictions .= ":edit=" . $limit;
         if (!$moveonly) {
             #$restrictions .= ":edit=" . $limit;
         }
         if (wfRunHooks('ArticleProtect', array(&$article, &$wgUser, $limit == 'sysop', $this->mprotect_reason, $moveonly))) {
             $dbw =& wfGetDB(DB_MASTER);
             $dbw->update('page', array('page_touched' => $dbw->timestamp(), 'page_restrictions' => $restrictions), array('page_id' => $id), 'Article::protect');
             wfRunHooks('ArticleProtectComplete', array(&$article, &$wgUser, $limit == 'sysop', $this->mprotect_reason, $moveonly));
             $log = new LogPage('protect');
             $log->addEntry('protect', $article->mTitle, $this->mprotect_reason);
         }
     }
     # AWC - Edit
     # Dont want ot redirect...
     #$oldid = 0; # new article
     #$article->showArticle( $text, wfMsg( 'newarticle' ), false, $isminor, $now, $summary, $oldid );
     wfProfileOut($fname);
 }

 function merge()
 {
     global $wgOut, $wgUser;
     # Get the titles directly from the IDs, in case the target page params
     # were spoofed. The queries are done based on the IDs, so it's best to
     # keep it consistent...
     $targetTitle = Title::newFromID($this->mTargetID);
     $destTitle = Title::newFromID($this->mDestID);
     if (is_null($targetTitle) || is_null($destTitle)) {
         return false;
     }
     // validate these
     if ($targetTitle->getArticleId() == $destTitle->getArticleId()) {
         return false;
     }
     # Verify that this timestamp is valid
     # Must be older than the destination page
     $dbw = wfGetDB(DB_MASTER);
     # Get timestamp into DB format
     $this->mTimestamp = $this->mTimestamp ? $dbw->timestamp($this->mTimestamp) : '';
     # Max timestamp should be min of destination page
     $maxtimestamp = $dbw->selectField('revision', 'MIN(rev_timestamp)', array('rev_page' => $this->mDestID), __METHOD__);
     # Destination page must exist with revisions
     if (!$maxtimestamp) {
         $wgOut->addWikiMsg('mergehistory-fail');
         return false;
     }
     # Get the latest timestamp of the source
     $lasttimestamp = $dbw->selectField(array('page', 'revision'), 'rev_timestamp', array('page_id' => $this->mTargetID, 'page_latest = rev_id'), __METHOD__);
     # $this->mTimestamp must be older than $maxtimestamp
     if ($this->mTimestamp >= $maxtimestamp) {
         $wgOut->addWikiMsg('mergehistory-fail');
         return false;
     }
     # Update the revisions
     if ($this->mTimestamp) {
         $timewhere = "rev_timestamp <= {$this->mTimestamp}";
         $TimestampLimit = wfTimestamp(TS_MW, $this->mTimestamp);
     } else {
         $timewhere = "rev_timestamp <= {$maxtimestamp}";
         $TimestampLimit = wfTimestamp(TS_MW, $lasttimestamp);
     }
     # Do the moving...
     $dbw->update('revision', array('rev_page' => $this->mDestID), array('rev_page' => $this->mTargetID, $timewhere), __METHOD__);
     $count = $dbw->affectedRows();
     # Make the source page a redirect if no revisions are left
     $haveRevisions = $dbw->selectField('revision', 'rev_timestamp', array('rev_page' => $this->mTargetID), __METHOD__, array('FOR UPDATE'));
     if (!$haveRevisions) {
         if ($this->mComment) {
             $comment = wfMsgForContent('mergehistory-comment', $targetTitle->getPrefixedText(), $destTitle->getPrefixedText(), $this->mComment);
         } else {
             $comment = wfMsgForContent('mergehistory-autocomment', $targetTitle->getPrefixedText(), $destTitle->getPrefixedText());
         }
         $mwRedir = MagicWord::get('redirect');
         $redirectText = $mwRedir->getSynonym(0) . ' [[' . $destTitle->getPrefixedText() . "]]\n";
         $redirectArticle = new Article($targetTitle);
         $redirectRevision = new Revision(array('page' => $this->mTargetID, 'comment' => $comment, 'text' => $redirectText));
         $redirectRevision->insertOn($dbw);
         $redirectArticle->updateRevisionOn($dbw, $redirectRevision);
         # Now, we record the link from the redirect to the new title.
         # It should have no other outgoing links...
         $dbw->delete('pagelinks', array('pl_from' => $this->mDestID), __METHOD__);
         $dbw->insert('pagelinks', array('pl_from' => $this->mDestID, 'pl_namespace' => $destTitle->getNamespace(), 'pl_title' => $destTitle->getDBkey()), __METHOD__);
     } else {
         $targetTitle->invalidateCache();
         // update histories
     }
     $destTitle->invalidateCache();
     // update histories
     # Check if this did anything
     if (!$count) {
         $wgOut->addWikiMsg('mergehistory-fail');
         return false;
     }
     # Update our logs
     $log = new LogPage('merge');
     $log->addEntry('merge', $targetTitle, $this->mComment, array($destTitle->getPrefixedText(), $TimestampLimit));
     $wgOut->addHTML(wfMsgExt('mergehistory-success', array('parseinline'), $targetTitle->getPrefixedText(), $destTitle->getPrefixedText(), $count));
     wfRunHooks('ArticleMergeComplete', array($targetTitle, $destTitle));
     return true;
 }

 /**
  * This is the meaty bit -- restores archived revisions of the given page
  * to the cur/old tables. If the page currently exists, all revisions will
  * be stuffed into old, otherwise the most recent will go into cur.
  *
  * @param array $timestamps Pass an empty array to restore all revisions, otherwise list the ones to undelete.
  * @param string $comment
  * @param array $fileVersions
  *
  * @return int number of revisions restored
  */
 private function undeleteRevisions($timestamps)
 {
     global $wgParser, $wgDBtype;
     $restoreAll = empty($timestamps);
     $dbw =& wfGetDB(DB_MASTER);
     extract($dbw->tableNames('page', 'archive'));
     # Does this page already exist? We'll have to update it...
     $article = new Article($this->title);
     $options = $wgDBtype == 'postgres' ? '' : 'FOR UPDATE';
     $page = $dbw->selectRow('page', array('page_id', 'page_latest'), array('page_namespace' => $this->title->getNamespace(), 'page_title' => $this->title->getDBkey()), __METHOD__, $options);
     if ($page) {
         # Page already exists. Import the history, and if necessary
         # we'll update the latest revision field in the record.
         $newid = 0;
         $pageId = $page->page_id;
         $previousRevId = $page->page_latest;
     } else {
         # Have to create a new article...
         $newid = $article->insertOn($dbw);
         $pageId = $newid;
         $previousRevId = 0;
     }
     if ($restoreAll) {
         $oldones = '1 = 1';
         # All revisions...
     } else {
         $oldts = implode(',', array_map(array(&$dbw, 'addQuotes'), array_map(array(&$dbw, 'timestamp'), $timestamps)));
         $oldones = "ar_timestamp IN ( {$oldts} )";
     }
     /**
      * Restore each revision...
      */
     $result = $dbw->select('archive', array('ar_rev_id', 'ar_text', 'ar_comment', 'ar_user', 'ar_user_text', 'ar_timestamp', 'ar_minor_edit', 'ar_flags', 'ar_text_id'), array('ar_namespace' => $this->title->getNamespace(), 'ar_title' => $this->title->getDBkey(), $oldones), __METHOD__, array('ORDER BY' => 'ar_timestamp'));
     if ($dbw->numRows($result) < count($timestamps)) {
         wfDebug(__METHOD__ . ": couldn't find all requested rows\n");
         return false;
     }
     $revision = null;
     $newRevId = $previousRevId;
     $restored = 0;
     while ($row = $dbw->fetchObject($result)) {
         if ($row->ar_text_id) {
             // Revision was deleted in 1.5+; text is in
             // the regular text table, use the reference.
             // Specify null here so the so the text is
             // dereferenced for page length info if needed.
             $revText = null;
         } else {
             // Revision was deleted in 1.4 or earlier.
             // Text is squashed into the archive row, and
             // a new text table entry will be created for it.
             $revText = Revision::getRevisionText($row, 'ar_');
         }
         $revision = new Revision(array('page' => $pageId, 'id' => $row->ar_rev_id, 'text' => $revText, 'comment' => $row->ar_comment, 'user' => $row->ar_user, 'user_text' => $row->ar_user_text, 'timestamp' => $row->ar_timestamp, 'minor_edit' => $row->ar_minor_edit, 'text_id' => $row->ar_text_id));
         $newRevId = $revision->insertOn($dbw);
         $restored++;
     }
     if ($revision) {
         # FIXME: Update latest if newer as well...
         if ($newid) {
             // Attach the latest revision to the page...
             $article->updateRevisionOn($dbw, $revision, $previousRevId);
             // Update site stats, link tables, etc
             $article->createUpdates($revision);
         }
         if ($newid) {
             Article::onArticleCreate($this->title);
         } else {
             Article::onArticleEdit($this->title);
         }
     } else {
         # Something went terribly wrong!
     }
     # Now that it's safely stored, take it out of the archive
     $dbw->delete('archive', array('ar_namespace' => $this->title->getNamespace(), 'ar_title' => $this->title->getDBkey(), $oldones), __METHOD__);
     return $restored;
 }

 /**
  * Move page to a title which is either a redirect to the
  * source page or nonexistent
  *
  * @param $nt Title the page to move to, which should be a redirect or nonexistent
  * @param $reason String The reason for the move
  * @param $createRedirect Bool Whether to leave a redirect at the old title.  Ignored
  *   if the user doesn't have the suppressredirect right
  */
 private function moveToInternal(&$nt, $reason = '', $createRedirect = true)
 {
     global $wgUser, $wgContLang;
     $moveOverRedirect = $nt->exists();
     $commentMsg = $moveOverRedirect ? '1movedto2_redir' : '1movedto2';
     $comment = wfMsgForContent($commentMsg, $this->getPrefixedText(), $nt->getPrefixedText());
     if ($reason) {
         $comment .= wfMsgForContent('colon-separator') . $reason;
     }
     # Truncate for whole multibyte characters.
     $comment = $wgContLang->truncate($comment, 255);
     $oldid = $this->getArticleID();
     $latest = $this->getLatestRevID();
     $dbw = wfGetDB(DB_MASTER);
     if ($moveOverRedirect) {
         $rcts = $dbw->timestamp($nt->getEarliestRevTime());
         $newid = $nt->getArticleID();
         $newns = $nt->getNamespace();
         $newdbk = $nt->getDBkey();
         # Delete the old redirect. We don't save it to history since
         # by definition if we've got here it's rather uninteresting.
         # We have to remove it so that the next step doesn't trigger
         # a conflict on the unique namespace+title index...
         $dbw->delete('page', array('page_id' => $newid), __METHOD__);
         if (!$dbw->cascadingDeletes()) {
             $dbw->delete('revision', array('rev_page' => $newid), __METHOD__);
             global $wgUseTrackbacks;
             if ($wgUseTrackbacks) {
                 $dbw->delete('trackbacks', array('tb_page' => $newid), __METHOD__);
             }
             $dbw->delete('pagelinks', array('pl_from' => $newid), __METHOD__);
             $dbw->delete('imagelinks', array('il_from' => $newid), __METHOD__);
             $dbw->delete('categorylinks', array('cl_from' => $newid), __METHOD__);
             $dbw->delete('templatelinks', array('tl_from' => $newid), __METHOD__);
             $dbw->delete('externallinks', array('el_from' => $newid), __METHOD__);
             $dbw->delete('langlinks', array('ll_from' => $newid), __METHOD__);
             $dbw->delete('iwlinks', array('iwl_from' => $newid), __METHOD__);
             $dbw->delete('redirect', array('rd_from' => $newid), __METHOD__);
         }
         // If the target page was recently created, it may have an entry in recentchanges still
         $dbw->delete('recentchanges', array('rc_timestamp' => $rcts, 'rc_namespace' => $newns, 'rc_title' => $newdbk, 'rc_new' => 1), __METHOD__);
     }
     # Save a null revision in the page's history notifying of the move
     $nullRevision = Revision::newNullRevision($dbw, $oldid, $comment, true);
     if (!is_object($nullRevision)) {
         throw new MWException('No valid null revision produced in ' . __METHOD__);
     }
     $nullRevId = $nullRevision->insertOn($dbw);
     $now = wfTimestampNow();
     # Change the name of the target page:
     $dbw->update('page', array('page_touched' => $dbw->timestamp($now), 'page_namespace' => $nt->getNamespace(), 'page_title' => $nt->getDBkey(), 'page_latest' => $nullRevId), array('page_id' => $oldid), __METHOD__);
     $nt->resetArticleID($oldid);
     $article = new Article($nt);
     wfRunHooks('NewRevisionFromEditComplete', array($article, $nullRevision, $latest, $wgUser));
     $article->setCachedLastEditTime($now);
     # Recreate the redirect, this time in the other direction.
     if ($createRedirect || !$wgUser->isAllowed('suppressredirect')) {
         $mwRedir = MagicWord::get('redirect');
         $redirectText = $mwRedir->getSynonym(0) . ' [[' . $nt->getPrefixedText() . "]]\n";
         $redirectArticle = new Article($this);
         $newid = $redirectArticle->insertOn($dbw);
         $redirectRevision = new Revision(array('page' => $newid, 'comment' => $comment, 'text' => $redirectText));
         $redirectRevision->insertOn($dbw);
         $redirectArticle->updateRevisionOn($dbw, $redirectRevision, 0);
         wfRunHooks('NewRevisionFromEditComplete', array($redirectArticle, $redirectRevision, false, $wgUser));
         # Now, we record the link from the redirect to the new title.
         # It should have no other outgoing links...
         $dbw->delete('pagelinks', array('pl_from' => $newid), __METHOD__);
         $dbw->insert('pagelinks', array('pl_from' => $newid, 'pl_namespace' => $nt->getNamespace(), 'pl_title' => $nt->getDBkey()), __METHOD__);
         $redirectSuppressed = false;
     } else {
         $this->resetArticleID(0);
         $redirectSuppressed = true;
     }
     # Log the move
     $log = new LogPage('move');
     $logType = $moveOverRedirect ? 'move_redir' : 'move';
     $log->addEntry($logType, $this, $reason, array(1 => $nt->getPrefixedText(), 2 => $redirectSuppressed));
     # Purge caches for old and new titles
     if ($moveOverRedirect) {
         # A simple purge is enough when moving over a redirect
         $nt->purgeSquid();
     } else {
         # Purge caches as per article creation, including any pages that link to this title
         Article::onArticleCreate($nt);
     }
     $this->purgeSquid();
 }

 /**
  * Actually attempt the history move
  *
  * @todo if all versions of page A are moved to B and then a user
  * tries to do a reverse-merge via the "unmerge" log link, then page
  * A will still be a redirect (as it was after the original merge),
  * though it will have the old revisions back from before (as expected).
  * The user may have to "undo" the redirect manually to finish the "unmerge".
  * Maybe this should delete redirects at the source page of merges?
  *
  * @param User $user
  * @param string $reason
  * @return Status status of the history merge
  */
 public function merge(User $user, $reason = '')
 {
     $status = new Status();
     // Check validity and permissions required for merge
     $validCheck = $this->isValidMerge();
     // Check this first to check for null pages
     if (!$validCheck->isOK()) {
         return $validCheck;
     }
     $permCheck = $this->checkPermissions($user, $reason);
     if (!$permCheck->isOK()) {
         return $permCheck;
     }
     $this->dbw->update('revision', array('rev_page' => $this->dest->getArticleID()), array('rev_page' => $this->source->getArticleID(), $this->timeWhere), __METHOD__);
     // Check if this did anything
     $this->revisionsMerged = $this->dbw->affectedRows();
     if ($this->revisionsMerged < 1) {
         $status->fatal('mergehistory-fail-no-change');
         return $status;
     }
     // Make the source page a redirect if no revisions are left
     $haveRevisions = $this->dbw->selectField('revision', 'rev_timestamp', array('rev_page' => $this->source->getArticleID()), __METHOD__, array('FOR UPDATE'));
     if (!$haveRevisions) {
         if ($reason) {
             $reason = wfMessage('mergehistory-comment', $this->source->getPrefixedText(), $this->dest->getPrefixedText(), $reason)->inContentLanguage()->text();
         } else {
             $reason = wfMessage('mergehistory-autocomment', $this->source->getPrefixedText(), $this->dest->getPrefixedText())->inContentLanguage()->text();
         }
         $contentHandler = ContentHandler::getForTitle($this->source);
         $redirectContent = $contentHandler->makeRedirectContent($this->dest, wfMessage('mergehistory-redirect-text')->inContentLanguage()->plain());
         if ($redirectContent) {
             $redirectPage = WikiPage::factory($this->source);
             $redirectRevision = new Revision(array('title' => $this->source, 'page' => $this->source->getArticleID(), 'comment' => $reason, 'content' => $redirectContent));
             $redirectRevision->insertOn($this->dbw);
             $redirectPage->updateRevisionOn($this->dbw, $redirectRevision);
             // Now, we record the link from the redirect to the new title.
             // It should have no other outgoing links...
             $this->dbw->delete('pagelinks', array('pl_from' => $this->dest->getArticleID()), __METHOD__);
             $this->dbw->insert('pagelinks', array('pl_from' => $this->dest->getArticleID(), 'pl_from_namespace' => $this->dest->getNamespace(), 'pl_namespace' => $this->dest->getNamespace(), 'pl_title' => $this->dest->getDBkey()), __METHOD__);
         } else {
             // Warning if we couldn't create the redirect
             $status->warning('mergehistory-warning-redirect-not-created');
         }
     } else {
         $this->source->invalidateCache();
         // update histories
     }
     $this->dest->invalidateCache();
     // update histories
     // Update our logs
     $logEntry = new ManualLogEntry('merge', 'merge');
     $logEntry->setPerformer($user);
     $logEntry->setComment($reason);
     $logEntry->setTarget($this->source);
     $logEntry->setParameters(array('4::dest' => $this->dest->getPrefixedText(), '5::mergepoint' => $this->timestampLimit->getTimestamp(TS_MW)));
     $logId = $logEntry->insert();
     $logEntry->publish($logId);
     Hooks::run('ArticleMergeComplete', array($this->source, $this->dest));
     return $status;
 }

 function importOldRevision()
 {
     $dbw = wfGetDB(DB_MASTER);
     # Sneak a single revision into place
     $user = User::newFromName($this->getUser());
     if ($user) {
         $userId = intval($user->getId());
         $userText = $user->getName();
     } else {
         $userId = 0;
         $userText = $this->getUser();
     }
     // avoid memory leak...?
     $linkCache =& LinkCache::singleton();
     $linkCache->clear();
     $article = new Article($this->title);
     $pageId = $article->getId();
     if ($pageId == 0) {
         # must create the page...
         $pageId = $article->insertOn($dbw);
         $created = true;
     } else {
         $created = false;
         $prior = Revision::loadFromTimestamp($dbw, $this->title, $this->timestamp);
         if (!is_null($prior)) {
             // FIXME: this could fail slightly for multiple matches :P
             wfDebug(__METHOD__ . ": skipping existing revision for [[" . $this->title->getPrefixedText() . "]], timestamp " . $this->timestamp . "\n");
             return false;
         }
     }
     # FIXME: Use original rev_id optionally
     # FIXME: blah blah blah
     #if( $numrows > 0 ) {
     #	return wfMsg( "importhistoryconflict" );
     #}
     # Insert the row
     $revision = new Revision(array('page' => $pageId, 'text' => $this->getText(), 'comment' => $this->getComment(), 'user' => $userId, 'user_text' => $userText, 'timestamp' => $this->timestamp, 'minor_edit' => $this->minor));
     $revId = $revision->insertOn($dbw);
     $changed = $article->updateIfNewerOn($dbw, $revision);
     if ($created) {
         wfDebug(__METHOD__ . ": running onArticleCreate\n");
         Article::onArticleCreate($this->title);
         wfDebug(__METHOD__ . ": running create updates\n");
         $article->createUpdates($revision);
     } elseif ($changed) {
         wfDebug(__METHOD__ . ": running onArticleEdit\n");
         Article::onArticleEdit($this->title);
         wfDebug(__METHOD__ . ": running edit updates\n");
         $article->editUpdates($this->getText(), $this->getComment(), $this->minor, $this->timestamp, $revId);
     }
     return true;
 }

 /**
  * Actually attempt the history move
  *
  * @todo if all versions of page A are moved to B and then a user
  * tries to do a reverse-merge via the "unmerge" log link, then page
  * A will still be a redirect (as it was after the original merge),
  * though it will have the old revisions back from before (as expected).
  * The user may have to "undo" the redirect manually to finish the "unmerge".
  * Maybe this should delete redirects at the target page of merges?
  *
  * @return bool Success
  */
 function merge()
 {
     # Get the titles directly from the IDs, in case the target page params
     # were spoofed. The queries are done based on the IDs, so it's best to
     # keep it consistent...
     $targetTitle = Title::newFromID($this->mTargetID);
     $destTitle = Title::newFromID($this->mDestID);
     if (is_null($targetTitle) || is_null($destTitle)) {
         return false;
         // validate these
     }
     if ($targetTitle->getArticleID() == $destTitle->getArticleID()) {
         return false;
     }
     # Verify that this timestamp is valid
     # Must be older than the destination page
     $dbw = wfGetDB(DB_MASTER);
     # Get timestamp into DB format
     $this->mTimestamp = $this->mTimestamp ? $dbw->timestamp($this->mTimestamp) : '';
     # Max timestamp should be min of destination page
     $maxtimestamp = $dbw->selectField('revision', 'MIN(rev_timestamp)', array('rev_page' => $this->mDestID), __METHOD__);
     # Destination page must exist with revisions
     if (!$maxtimestamp) {
         $this->getOutput()->addWikiMsg('mergehistory-fail');
         return false;
     }
     # Get the latest timestamp of the source
     $lasttimestamp = $dbw->selectField(array('page', 'revision'), 'rev_timestamp', array('page_id' => $this->mTargetID, 'page_latest = rev_id'), __METHOD__);
     # $this->mTimestamp must be older than $maxtimestamp
     if ($this->mTimestamp >= $maxtimestamp) {
         $this->getOutput()->addWikiMsg('mergehistory-fail');
         return false;
     }
     # Get the timestamp pivot condition
     if ($this->mTimestamp) {
         $timewhere = "rev_timestamp <= {$this->mTimestamp}";
         $timestampLimit = wfTimestamp(TS_MW, $this->mTimestamp);
     } else {
         $timewhere = "rev_timestamp <= {$maxtimestamp}";
         $timestampLimit = wfTimestamp(TS_MW, $lasttimestamp);
     }
     # Check that there are not too many revisions to move
     $limit = 5000;
     // avoid too much slave lag
     $count = $dbw->selectRowCount('revision', '1', array('rev_page' => $this->mTargetID, $timewhere), __METHOD__, array('LIMIT' => $limit + 1));
     if ($count > $limit) {
         $this->getOutput()->addWikiMsg('mergehistory-fail-toobig');
         return false;
     }
     # Do the moving...
     $dbw->update('revision', array('rev_page' => $this->mDestID), array('rev_page' => $this->mTargetID, $timewhere), __METHOD__);
     $count = $dbw->affectedRows();
     # Make the source page a redirect if no revisions are left
     $haveRevisions = $dbw->selectField('revision', 'rev_timestamp', array('rev_page' => $this->mTargetID), __METHOD__, array('FOR UPDATE'));
     if (!$haveRevisions) {
         if ($this->mComment) {
             $comment = $this->msg('mergehistory-comment', $targetTitle->getPrefixedText(), $destTitle->getPrefixedText(), $this->mComment)->inContentLanguage()->text();
         } else {
             $comment = $this->msg('mergehistory-autocomment', $targetTitle->getPrefixedText(), $destTitle->getPrefixedText())->inContentLanguage()->text();
         }
         $contentHandler = ContentHandler::getForTitle($targetTitle);
         $redirectContent = $contentHandler->makeRedirectContent($destTitle);
         if ($redirectContent) {
             $redirectPage = WikiPage::factory($targetTitle);
             $redirectRevision = new Revision(array('title' => $targetTitle, 'page' => $this->mTargetID, 'comment' => $comment, 'content' => $redirectContent));
             $redirectRevision->insertOn($dbw);
             $redirectPage->updateRevisionOn($dbw, $redirectRevision);
             # Now, we record the link from the redirect to the new title.
             # It should have no other outgoing links...
             $dbw->delete('pagelinks', array('pl_from' => $this->mDestID), __METHOD__);
             $dbw->insert('pagelinks', array('pl_from' => $this->mDestID, 'pl_from_namespace' => $destTitle->getNamespace(), 'pl_namespace' => $destTitle->getNamespace(), 'pl_title' => $destTitle->getDBkey()), __METHOD__);
         } else {
             // would be nice to show a warning if we couldn't create a redirect
         }
     } else {
         $targetTitle->invalidateCache();
         // update histories
     }
     $destTitle->invalidateCache();
     // update histories
     # Check if this did anything
     if (!$count) {
         $this->getOutput()->addWikiMsg('mergehistory-fail');
         return false;
     }
     # Update our logs
     $log = new LogPage('merge');
     $log->addEntry('merge', $targetTitle, $this->mComment, array($destTitle->getPrefixedText(), $timestampLimit), $this->getUser());
//.........这里部分代码省略.........

 /**
  * Move page to non-existing title.
  *
  * @param $nt \type{Title} the new Title
  * @param $reason \type{\string} The reason for the move
  * @param $createRedirect \type{\bool} Whether to create a redirect from the old title to the new title
  *  Ignored if the user doesn't have the suppressredirect right
  */
 private function moveToNewTitle(&$nt, $reason = '', $createRedirect = true)
 {
     global $wgUser, $wgContLang;
     $comment = wfMsgForContent('1movedto2', $this->getPrefixedText(), $nt->getPrefixedText());
     if ($reason) {
         $comment .= wfMsgExt('colon-separator', array('escapenoentities', 'content'));
         $comment .= $reason;
     }
     # Truncate for whole multibyte characters. +5 bytes for ellipsis
     $comment = $wgContLang->truncate($comment, 250);
     $oldid = $this->getArticleID();
     $latest = $this->getLatestRevId();
     $dbw = wfGetDB(DB_MASTER);
     $now = $dbw->timestamp();
     # Save a null revision in the page's history notifying of the move
     $nullRevision = Revision::newNullRevision($dbw, $oldid, $comment, true);
     if (!is_object($nullRevision)) {
         throw new MWException('No valid null revision produced in ' . __METHOD__);
     }
     $nullRevId = $nullRevision->insertOn($dbw);
     $article = new Article($this);
     wfRunHooks('NewRevisionFromEditComplete', array($article, $nullRevision, $latest, $wgUser));
     # Rename page entry
     $dbw->update('page', array('page_touched' => $now, 'page_namespace' => $nt->getNamespace(), 'page_title' => $nt->getDBkey(), 'page_latest' => $nullRevId), array('page_id' => $oldid), __METHOD__);
     $nt->resetArticleID($oldid);
     if ($createRedirect || !$wgUser->isAllowed('suppressredirect')) {
         # Insert redirect
         $mwRedir = MagicWord::get('redirect');
         $redirectText = $mwRedir->getSynonym(0) . ' [[' . $nt->getPrefixedText() . "]]\n";
         $redirectArticle = new Article($this);
         $newid = $redirectArticle->insertOn($dbw);
         $redirectRevision = new Revision(array('page' => $newid, 'comment' => $comment, 'text' => $redirectText));
         $redirectRevision->insertOn($dbw);
         $redirectArticle->updateRevisionOn($dbw, $redirectRevision, 0);
         wfRunHooks('NewRevisionFromEditComplete', array($redirectArticle, $redirectRevision, false, $wgUser));
         # Record the just-created redirect's linking to the page
         $dbw->insert('pagelinks', array('pl_from' => $newid, 'pl_namespace' => $nt->getNamespace(), 'pl_title' => $nt->getDBkey()), __METHOD__);
         $redirectSuppressed = false;
     } else {
         $this->resetArticleID(0);
         $redirectSuppressed = true;
     }
     # Log the move
     $log = new LogPage('move');
     $log->addEntry('move', $this, $reason, array(1 => $nt->getPrefixedText(), 2 => $redirectSuppressed));
     # Purge caches as per article creation
     Article::onArticleCreate($nt);
     # Purge old title from squid
     # The new title, and links to the new title, are purged in Article::onArticleCreate()
     $this->purgeSquid();
 }

 /**
  * This is the meaty bit -- restores archived revisions of the given page
  * to the cur/old tables. If the page currently exists, all revisions will
  * be stuffed into old, otherwise the most recent will go into cur.
  *
  * @param array $timestamps Pass an empty array to restore all revisions, otherwise list the ones to undelete.
  * @param string $comment
  * @param array $fileVersions
  *
  * @return mixed number of revisions restored or false on failure
  */
 private function undeleteRevisions($timestamps)
 {
     if (wfReadOnly()) {
         return false;
     }
     $restoreAll = empty($timestamps);
     $dbw = wfGetDB(DB_MASTER);
     # Does this page already exist? We'll have to update it...
     $article = new Article($this->title);
     $options = 'FOR UPDATE';
     $page = $dbw->selectRow('page', array('page_id', 'page_latest'), array('page_namespace' => $this->title->getNamespace(), 'page_title' => $this->title->getDBkey()), __METHOD__, $options);
     if ($page) {
         # Page already exists. Import the history, and if necessary
         # we'll update the latest revision field in the record.
         $newid = 0;
         $pageId = $page->page_id;
         $previousRevId = $page->page_latest;
     } else {
         # Have to create a new article...
         $newid = $article->insertOn($dbw);
         $pageId = $newid;
         $previousRevId = 0;
     }
     if ($restoreAll) {
         $oldones = '1 = 1';
         # All revisions...
     } else {
         $oldts = implode(',', array_map(array(&$dbw, 'addQuotes'), array_map(array(&$dbw, 'timestamp'), $timestamps)));
         $oldones = "ar_timestamp IN ( {$oldts} )";
     }
     /**
      * Restore each revision...
      */
     $result = $dbw->select('archive', array('ar_rev_id', 'ar_text', 'ar_comment', 'ar_user', 'ar_user_text', 'ar_timestamp', 'ar_minor_edit', 'ar_flags', 'ar_text_id', 'ar_page_id', 'ar_len'), array('ar_namespace' => $this->title->getNamespace(), 'ar_title' => $this->title->getDBkey(), $oldones), __METHOD__, array('ORDER BY' => 'ar_timestamp'));
     if ($dbw->numRows($result) < count($timestamps)) {
         wfDebug(__METHOD__ . ": couldn't find all requested rows\n");
         return false;
     }
     $revision = null;
     $restored = 0;
     while ($row = $dbw->fetchObject($result)) {
         if ($row->ar_text_id) {
             // Revision was deleted in 1.5+; text is in
             // the regular text table, use the reference.
             // Specify null here so the so the text is
             // dereferenced for page length info if needed.
             $revText = null;
         } else {
             // Revision was deleted in 1.4 or earlier.
             // Text is squashed into the archive row, and
             // a new text table entry will be created for it.
             $revText = Revision::getRevisionText($row, 'ar_');
         }
         $revision = new Revision(array('page' => $pageId, 'id' => $row->ar_rev_id, 'text' => $revText, 'comment' => $row->ar_comment, 'user' => $row->ar_user, 'user_text' => $row->ar_user_text, 'timestamp' => $row->ar_timestamp, 'minor_edit' => $row->ar_minor_edit, 'text_id' => $row->ar_text_id, 'len' => $row->ar_len));
         $revision->insertOn($dbw);
         $restored++;
         wfRunHooks('ArticleRevisionUndeleted', array(&$this->title, $revision, $row->ar_page_id));
     }
     // Was anything restored at all?
     if ($restored == 0) {
         return 0;
     }
     if ($revision) {
         // Attach the latest revision to the page...
         $wasnew = $article->updateIfNewerOn($dbw, $revision, $previousRevId);
         if ($newid || $wasnew) {
             // Update site stats, link tables, etc
             $article->createUpdates($revision);
         }
         if ($newid) {
             wfRunHooks('ArticleUndelete', array(&$this->title, true));
             Article::onArticleCreate($this->title);
         } else {
             wfRunHooks('ArticleUndelete', array(&$this->title, false));
             Article::onArticleEdit($this->title);
         }
         if ($this->title->getNamespace() == NS_IMAGE) {
             $update = new HTMLCacheUpdate($this->title, 'imagelinks');
             $update->doUpdate();
         }
     } else {
         // Revision couldn't be created. This is very weird
         return self::UNDELETE_UNKNOWNERR;
     }
     # Now that it's safely stored, take it out of the archive
     $dbw->delete('archive', array('ar_namespace' => $this->title->getNamespace(), 'ar_title' => $this->title->getDBkey(), $oldones), __METHOD__);
     return $restored;
 }

 /**
  * Create a redirect; fails if the title already exists; does
  * not notify RC
  *
  * @param Title $dest the destination of the redirect
  * @param string $comment the comment string describing the move
  * @return bool true on success
  * @access public
  */
 function createRedirect($dest, $comment)
 {
     if ($this->getArticleID()) {
         return false;
     }
     $fname = 'Title::createRedirect';
     $dbw =& wfGetDB(DB_MASTER);
     $article = new Article($this);
     $newid = $article->insertOn($dbw);
     $revision = new Revision(array('page' => $newid, 'comment' => $comment, 'text' => "#REDIRECT [[" . $dest->getPrefixedText() . "]]\n"));
     $revisionId = $revision->insertOn($dbw);
     $article->updateRevisionOn($dbw, $revision, 0);
     # Link table
     $dbw->insert('pagelinks', array('pl_from' => $newid, 'pl_namespace' => $dest->getNamespace(), 'pl_title' => $dest->getDbKey()), $fname);
     Article::onArticleCreate($this);
     return true;
 }

 /**
  * This is the meaty bit -- restores archived revisions of the given page
  * to the cur/old tables. If the page currently exists, all revisions will
  * be stuffed into old, otherwise the most recent will go into cur.
  * The deletion log will be updated with an undeletion notice.
  *
  * Returns true on success.
  *
  * @param array $timestamps Pass an empty array to restore all revisions, otherwise list the ones to undelete.
  * @return bool
  */
 function undelete($timestamps)
 {
     global $wgUser, $wgOut, $wgLang, $wgDeferredUpdateList;
     global $wgUseSquid, $wgInternalServer, $wgLinkCache;
     global $wgDBtype;
     $fname = "doUndeleteArticle";
     $restoreAll = empty($timestamps);
     $restoreRevisions = count($timestamps);
     $dbw =& wfGetDB(DB_MASTER);
     extract($dbw->tableNames('page', 'archive'));
     # Does this page already exist? We'll have to update it...
     $article = new Article($this->title);
     $options = $wgDBtype == 'PostgreSQL' ? '' : 'FOR UPDATE';
     $page = $dbw->selectRow('page', array('page_id', 'page_latest'), array('page_namespace' => $this->title->getNamespace(), 'page_title' => $this->title->getDBkey()), $fname, $options);
     if ($page) {
         # Page already exists. Import the history, and if necessary
         # we'll update the latest revision field in the record.
         $newid = 0;
         $pageId = $page->page_id;
         $previousRevId = $page->page_latest;
         $previousTimestamp = $page->rev_timestamp;
     } else {
         # Have to create a new article...
         $newid = $article->insertOn($dbw);
         $pageId = $newid;
         $previousRevId = 0;
         $previousTimestamp = 0;
     }
     if ($restoreAll) {
         $oldones = '1';
         # All revisions...
     } else {
         $oldts = implode(',', array_map(array(&$dbw, 'addQuotes'), array_map(array(&$dbw, 'timestamp'), $timestamps)));
         $oldones = "ar_timestamp IN ( {$oldts} )";
     }
     /**
      * Restore each revision...
      */
     $result = $dbw->select('archive', array('ar_rev_id', 'ar_text', 'ar_comment', 'ar_user', 'ar_user_text', 'ar_timestamp', 'ar_minor_edit', 'ar_flags', 'ar_text_id'), array('ar_namespace' => $this->title->getNamespace(), 'ar_title' => $this->title->getDBkey(), $oldones), $fname, array('ORDER BY' => 'ar_timestamp'));
     $revision = null;
     while ($row = $dbw->fetchObject($result)) {
         $revision = new Revision(array('page' => $pageId, 'id' => $row->ar_rev_id, 'text' => Revision::getRevisionText($row, 'ar_'), 'comment' => $row->ar_comment, 'user' => $row->ar_user, 'user_text' => $row->ar_user_text, 'timestamp' => $row->ar_timestamp, 'minor_edit' => $row->ar_minor_edit, 'text_id' => $row->ar_text_id));
         $revision->insertOn($dbw);
     }
     if ($revision) {
         # FIXME: Update latest if newer as well...
         if ($newid) {
             # FIXME: update article count if changed...
             $article->updateRevisionOn($dbw, $revision, $previousRevId);
             # Finally, clean up the link tables
             $wgLinkCache = new LinkCache();
             # Select for update
             $wgLinkCache->forUpdate(true);
             # Create a dummy OutputPage to update the outgoing links
             $dummyOut = new OutputPage();
             $dummyOut->addWikiText($revision->getText());
             $u = new LinksUpdate($newid, $this->title->getPrefixedDBkey());
             array_push($wgDeferredUpdateList, $u);
             #TODO: SearchUpdate, etc.
         }
         if ($newid) {
             Article::onArticleCreate($this->title);
         } else {
             Article::onArticleEdit($this->title);
         }
     } else {
         # Something went terribly worong!
     }
     # Now that it's safely stored, take it out of the archive
     $dbw->delete('archive', array('ar_namespace' => $this->title->getNamespace(), 'ar_title' => $this->title->getDBkey(), $oldones), $fname);
     # Touch the log!
     $log = new LogPage('delete');
     if ($restoreAll) {
         $reason = '';
     } else {
         $reason = wfMsgForContent('undeletedrevisions', $restoreRevisions);
     }
     $log->addEntry('restore', $this->title, $reason);
     return true;
 }