/**
* 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();
}
