PHP Revision::isCurrent方法代码示例

 /**
  * Get template and image versions from parsing a revision
  * @param Page $article
  * @param Revision $rev
  * @param User $user
  * @param string $regen use 'regen' to force regeneration
  * @return array( templateIds, fileSHA1Keys )
  * templateIds like ParserOutput->mTemplateIds
  * fileSHA1Keys like ParserOutput->mImageTimeKeys
  */
 public static function getRevIncludes(Page $article, Revision $rev, User $user, $regen = '')
 {
     global $wgMemc;
     wfProfileIn(__METHOD__);
     $key = self::getCacheKey($article->getTitle(), $rev->getId());
     if ($regen === 'regen') {
         $versions = false;
         // skip cache
     } elseif ($rev->isCurrent()) {
         // Check cache entry against page_touched
         $versions = FlaggedRevs::getMemcValue($wgMemc->get($key), $article);
     } else {
         // Old revs won't always be invalidated with template/file changes.
         // Also, we don't care if page_touched changed due to a direct edit.
         $versions = FlaggedRevs::getMemcValue($wgMemc->get($key), $article, 'allowStale');
         if (is_array($versions)) {
             // entry exists
             // Sanity check that the cache is reasonably up to date
             list($templates, $files) = $versions;
             if (self::templatesStale($templates) || self::filesStale($files)) {
                 $versions = false;
                 // no good
             }
         }
     }
     if (!is_array($versions)) {
         // cache miss
         $pOut = false;
         if ($rev->isCurrent()) {
             $parserCache = ParserCache::singleton();
             # Try current version parser cache for this user...
             $pOut = $parserCache->get($article, $article->makeParserOptions($user));
             if ($pOut == false) {
                 # Try current version parser cache for the revision author...
                 $optsUser = $rev->getUser() ? User::newFromId($rev->getUser()) : 'canonical';
                 $pOut = $parserCache->get($article, $article->makeParserOptions($optsUser));
             }
         }
         // ParserOutput::mImageTimeKeys wasn't always there
         if ($pOut == false || !FlaggedRevs::parserOutputIsVersioned($pOut)) {
             $content = $rev->getContent(Revision::RAW);
             if (!$content) {
                 // Just for extra sanity
                 $pOut = new ParserOutput();
             } else {
                 $pOut = $content->getParserOutput($article->getTitle(), $rev->getId(), ParserOptions::newFromUser($user));
             }
         }
         # Get the template/file versions used...
         $versions = array($pOut->getTemplateIds(), $pOut->getFileSearchOptions());
         # Save to cache (check cache expiry for dynamic elements)...
         $data = FlaggedRevs::makeMemcObj($versions);
         $wgMemc->set($key, $data, $pOut->getCacheExpiry());
     }
     wfProfileOut(__METHOD__);
     return $versions;
 }

 /**
  * Returns true if the currently-referenced revision is the current edit
  * to this page (and it exists).
  * @return bool
  */
 public function isCurrent()
 {
     # If no oldid, this is the current version.
     if ($this->getOldID() == 0) {
         return true;
     }
     return $this->mPage->exists() && $this->mRevision && $this->mRevision->isCurrent();
 }

 /**
  * Get template and image versions from parsing a revision
  * @param Page $article
  * @param Revision $rev
  * @param User $user
  * @param string $regen use 'regen' to force regeneration
  * @return array( templateIds, fileSHA1Keys )
  * templateIds like ParserOutput->mTemplateIds
  * fileSHA1Keys like ParserOutput->mImageTimeKeys
  */
 public static function getRevIncludes(Page $article, Revision $rev, User $user, $regen = '')
 {
     global $wgParser, $wgMemc;
     wfProfileIn(__METHOD__);
     $versions = false;
     $key = self::getCacheKey($article->getTitle(), $rev->getId());
     if ($regen !== 'regen') {
         // check cache
         $versions = FlaggedRevs::getMemcValue($wgMemc->get($key), $article, 'allowStale');
     }
     if (!is_array($versions)) {
         // cache miss
         $pOut = false;
         if ($rev->isCurrent()) {
             $parserCache = ParserCache::singleton();
             # Try current version parser cache (as anon)...
             $pOut = $parserCache->get($article, $article->makeParserOptions($user));
             if ($pOut == false && $rev->getUser()) {
                 // try the user who saved the change
                 $author = User::newFromId($rev->getUser());
                 $pOut = $parserCache->get($article, $article->makeParserOptions($author));
             }
         }
         // ParserOutput::mImageTimeKeys wasn't always there
         if ($pOut == false || !FlaggedRevs::parserOutputIsVersioned($pOut)) {
             $title = $article->getTitle();
             $pOpts = ParserOptions::newFromUser($user);
             // Note: tidy off
             $pOut = $wgParser->parse($rev->getText(), $title, $pOpts, true, true, $rev->getId());
         }
         # Get the template/file versions used...
         $versions = array($pOut->getTemplateIds(), $pOut->getFileSearchOptions());
         # Save to cache (check cache expiry for dynamic elements)...
         $data = FlaggedRevs::makeMemcObj($versions);
         $wgMemc->set($key, $data, $pOut->getCacheExpiry());
     } else {
         $tVersions =& $versions[0];
         // templates
         # Do a link batch query for page_latest...
         $lb = new LinkBatch();
         foreach ($tVersions as $ns => $tmps) {
             foreach ($tmps as $dbKey => $revIdDraft) {
                 $lb->add($ns, $dbKey);
             }
         }
         $lb->execute();
         # Update array with the current page_latest values.
         # This kludge is there since $newTemplates (thus $revIdDraft) is cached.
         foreach ($tVersions as $ns => &$tmps) {
             foreach ($tmps as $dbKey => &$revIdDraft) {
                 $title = Title::makeTitle($ns, $dbKey);
                 $revIdDraft = (int) $title->getLatestRevID();
             }
         }
     }
     wfProfileOut(__METHOD__);
     return $versions;
 }

 /**
  * Get a header for a specified revision.
  *
  * @param Revision $rev
  * @param string $complete 'complete' to get the header wrapped depending
  *        the visibility of the revision and a link to edit the page.
  *
  * @return string HTML fragment
  */
 protected function getRevisionHeader(Revision $rev, $complete = '')
 {
     $lang = $this->getLanguage();
     $user = $this->getUser();
     $revtimestamp = $rev->getTimestamp();
     $timestamp = $lang->userTimeAndDate($revtimestamp, $user);
     $dateofrev = $lang->userDate($revtimestamp, $user);
     $timeofrev = $lang->userTime($revtimestamp, $user);
     $header = $this->msg($rev->isCurrent() ? 'currentrev-asof' : 'revisionasof', $timestamp, $dateofrev, $timeofrev)->escaped();
     if ($complete !== 'complete') {
         return $header;
     }
     $title = $rev->getTitle();
     $header = Linker::linkKnown($title, $header, array(), array('oldid' => $rev->getID()));
     if ($rev->userCan(Revision::DELETED_TEXT, $user)) {
         $editQuery = array('action' => 'edit');
         if (!$rev->isCurrent()) {
             $editQuery['oldid'] = $rev->getID();
         }
         $key = $title->quickUserCan('edit', $user) ? 'editold' : 'viewsourceold';
         $msg = $this->msg($key)->escaped();
         $editLink = $this->msg('parentheses')->rawParams(Linker::linkKnown($title, $msg, array(), $editQuery))->escaped();
         $header .= ' ' . Html::rawElement('span', array('class' => 'mw-diff-edit'), $editLink);
         if ($rev->isDeleted(Revision::DELETED_TEXT)) {
             $header = Html::rawElement('span', array('class' => 'history-deleted'), $header);
         }
     } else {
         $header = Html::rawElement('span', array('class' => 'history-deleted'), $header);
     }
     return $header;
 }

 /**
  * Add a link to diff-to-stable for reviewable pages
  */
 protected static function diffToStableLink(FlaggableWikiPage $article, $oldRev, Revision $newRev)
 {
     $srev = $article->getStableRev();
     if (!$srev) {
         return '';
         // nothing to do
     }
     $review = '';
     # Is this already the full diff-to-stable?
     $fullStableDiff = $newRev->isCurrent() && self::isDiffToStable($srev, $oldRev, $newRev);
     # Make a link to the full diff-to-stable if:
     # (a) Actual revs are pending and (b) We are not viewing the full diff-to-stable
     if ($article->revsArePending() && !$fullStableDiff) {
         $review = Linker::linkKnown($article->getTitle(), wfMsgHtml('review-diff2stable'), array(), array('oldid' => $srev->getRevId(), 'diff' => 'cur') + FlaggedRevs::diffOnlyCGI());
         $review = wfMsgHtml('parentheses', $review);
         $review = "<div class='fr-diff-to-stable' align='center'>{$review}</div>";
     }
     return $review;
 }

 /**
  * @param Skin $skin
  * @param Title $title
  * @param Revision $revision
  * @param Revision $undoAfterRevision
  * @return String Undo Link
  */
 public static function generateUndoLink($skin, $title, $revision, $undoAfterRevision)
 {
     if (!$revision instanceof Revision || !$undoAfterRevision instanceof Revision || !$title instanceof Title || !$skin instanceof Skin) {
         return null;
     }
     # Create undo tooltip for the first (=latest) line only
     $undoTooltip = $revision->isCurrent() ? array('title' => wfMsg('tooltip-undo')) : array();
     $undolink = $skin->link($title, wfMsgHtml('editundo'), $undoTooltip, array('action' => 'edit', 'undoafter' => $undoAfterRevision->getId(), 'undo' => $revision->getId()), array('known', 'noclasses'));
     return "<span class=\"mw-history-undo\">{$undolink}</span>";
 }

 /**
  * Get a header for a specified revision.
  *
  * @param $rev Revision
  * @param $complete String: 'complete' to get the header wrapped depending
  *        the visibility of the revision and a link to edit the page.
  * @return String HTML fragment
  */
 private function getRevisionHeader(Revision $rev, $complete = '')
 {
     $lang = $this->getLanguage();
     $user = $this->getUser();
     $revtimestamp = $rev->getTimestamp();
     $timestamp = $lang->userTimeAndDate($revtimestamp, $user);
     $dateofrev = $lang->userDate($revtimestamp, $user);
     $timeofrev = $lang->userTime($revtimestamp, $user);
     $header = $this->msg($rev->isCurrent() ? 'currentrev-asof' : 'revisionasof', $timestamp, $dateofrev, $timeofrev)->escaped();
     if ($complete !== 'complete') {
         return $header;
     }
     $title = $rev->getTitle();
     $header = Linker::linkKnown($title, $header, array(), array('oldid' => $rev->getID()));
     if ($rev->userCan(Revision::DELETED_TEXT, $user)) {
         $editQuery = array('action' => 'edit');
         if (!$rev->isCurrent()) {
             $editQuery['oldid'] = $rev->getID();
         }
         $msg = $this->msg($title->userCan('edit', $user) ? 'editold' : 'viewsourceold')->escaped();
         /* Wikia Change begin */
         $header .= ' <span class="mw-rev-head-action">(' . Linker::linkKnown($title, $msg, array(), $editQuery) . ')</span>';
         /* Wikia Change end */
         if ($rev->isDeleted(Revision::DELETED_TEXT)) {
             $header = Html::rawElement('span', array('class' => 'history-deleted'), $header);
         }
     } else {
         $header = Html::rawElement('span', array('class' => 'history-deleted'), $header);
     }
     return $header;
 }