includes/specials/SpecialMovepage.php

   1 <?php
   2 /**
   3  * Implements Special:Movepage
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @ingroup SpecialPage
  22  */
  23
  24 /**
  25  * A special page that allows users to change page titles
  26  *
  27  * @ingroup SpecialPage
  28  */
  29 class MovePageForm extends UnlistedSpecialPage {
  30
  31         /**
  32          * @var Title
  33          */
  34         var $oldTitle, $newTitle; # Objects
  35         var $reason; # Text input
  36         var $moveTalk, $deleteAndMove, $moveSubpages, $fixRedirects, $leaveRedirect, $moveOverShared; # Checks
  37
  38         private $watch = false;
  39
  40         public function __construct() {
  41                 parent::__construct( 'Movepage' );
  42         }
  43
  44         public function execute( $par ) {
  45                 # Check for database lock
  46                 if ( wfReadOnly() ) {
  47                         throw new ReadOnlyError;
  48                 }
  49
  50                 $this->setHeaders();
  51                 $this->outputHeader();
  52
  53                 $request = $this->getRequest();
  54                 $target = !is_null( $par ) ? $par : $request->getVal( 'target' );
  55
  56                 // Yes, the use of getVal() and getText() is wanted, see bug 20365
  57                 $oldTitleText = $request->getVal( 'wpOldTitle', $target );
  58                 $newTitleText = $request->getText( 'wpNewTitle' );
  59
  60                 $this->oldTitle = Title::newFromText( $oldTitleText );
  61                 $this->newTitle = Title::newFromText( $newTitleText );
  62
  63                 if( is_null( $this->oldTitle ) ) {
  64                         throw new ErrorPageError( 'notargettitle', 'notargettext' );
  65                 }
  66                 if( !$this->oldTitle->exists() ) {
  67                         throw new ErrorPageError( 'nopagetitle', 'nopagetext' );
  68                 }
  69
  70                 $user = $this->getUser();
  71
  72                 # Check rights
  73                 $permErrors = $this->oldTitle->getUserPermissionsErrors( 'move', $user );
  74                 if( !empty( $permErrors ) ) {
  75                         $this->getOutput()->showPermissionsErrorPage( $permErrors );
  76                         return;
  77                 }
  78
  79                 $def = !$request->wasPosted();
  80
  81                 $this->reason = $request->getText( 'wpReason' );
  82                 $this->moveTalk = $request->getBool( 'wpMovetalk', $def );
  83                 $this->fixRedirects = $request->getBool( 'wpFixRedirects', $def );
  84                 $this->leaveRedirect = $request->getBool( 'wpLeaveRedirect', $def );
  85                 $this->moveSubpages = $request->getBool( 'wpMovesubpages', false );
  86                 $this->deleteAndMove = $request->getBool( 'wpDeleteAndMove' ) && $request->getBool( 'wpConfirm' );
  87                 $this->moveOverShared = $request->getBool( 'wpMoveOverSharedFile', false );
  88                 $this->watch = $request->getCheck( 'wpWatch' ) && $user->isLoggedIn();
  89
  90                 if ( 'submit' == $request->getVal( 'action' ) && $request->wasPosted()
  91                         && $user->matchEditToken( $request->getVal( 'wpEditToken' ) ) ) {
  92                         $this->doSubmit();
  93                 } else {
  94                         $this->showForm( '' );
  95                 }
  96         }
  97
  98         /**
  99          * Show the form
 100          *
 101          * @param $err Mixed: error message. May either be a string message name or
 102          *    array message name and parameters, like the second argument to
 103          *    OutputPage::wrapWikiMsg().
 104          */
 105         function showForm( $err ) {
 106                 global $wgContLang, $wgFixDoubleRedirects, $wgMaximumMovedPages;
 107
 108                 $this->getSkin()->setRelevantTitle( $this->oldTitle );
 109
 110                 $oldTitleLink = Linker::link( $this->oldTitle );
 111
 112                 $out = $this->getOutput();
 113                 $out->setPagetitle( wfMsg( 'move-page', $this->oldTitle->getPrefixedText() ) );
 114                 $out->addModules( 'mediawiki.special.movePage' );
 115
 116                 $newTitle = $this->newTitle;
 117
 118                 if( !$newTitle ) {
 119                         # Show the current title as a default
 120                         # when the form is first opened.
 121                         $newTitle = $this->oldTitle;
 122                 }
 123                 else {
 124                         if( empty($err) ) {
 125                                 # If a title was supplied, probably from the move log revert
 126                                 # link, check for validity. We can then show some diagnostic
 127                                 # information and save a click.
 128                                 $newerr = $this->oldTitle->isValidMoveOperation( $newTitle );
 129                                 if( $newerr ) {
 130                                         $err = $newerr[0];
 131                                 }
 132                         }
 133                 }
 134
 135                 $user = $this->getUser();
 136
 137                 if ( !empty($err) && $err[0] == 'articleexists' && $user->isAllowed( 'delete' ) ) {
 138                         $out->addWikiMsg( 'delete_and_move_text', $newTitle->getPrefixedText() );
 139                         $movepagebtn = wfMsg( 'delete_and_move' );
 140                         $submitVar = 'wpDeleteAndMove';
 141                         $confirm = "
 142                                 <tr>
 143                                         <td></td>
 144                                         <td class='mw-input'>" .
 145                                                 Xml::checkLabel( wfMsg( 'delete_and_move_confirm' ), 'wpConfirm', 'wpConfirm' ) .
 146                                         "</td>
 147                                 </tr>";
 148                         $err = '';
 149                 } else {
 150                         if ($this->oldTitle->getNamespace() == NS_USER && !$this->oldTitle->isSubpage() ) {
 151                                 $out->wrapWikiMsg( "<div class=\"error mw-moveuserpage-warning\">\n$1\n</div>", 'moveuserpage-warning' );
 152                         }
 153                         $out->addWikiMsg( $wgFixDoubleRedirects ? 'movepagetext' :
 154                                 'movepagetext-noredirectfixer' );
 155                         $movepagebtn = wfMsg( 'movepagebtn' );
 156                         $submitVar = 'wpMove';
 157                         $confirm = false;
 158                 }
 159
 160                 if ( !empty($err) && $err[0] == 'file-exists-sharedrepo' && $user->isAllowed( 'reupload-shared' ) ) {
 161                         $out->addWikiMsg( 'move-over-sharedrepo', $newTitle->getPrefixedText() );
 162                         $submitVar = 'wpMoveOverSharedFile';
 163                         $err = '';
 164                 }
 165
 166                 $oldTalk = $this->oldTitle->getTalkPage();
 167                 $considerTalk = ( !$this->oldTitle->isTalkPage() && $oldTalk->exists() );
 168
 169                 $dbr = wfGetDB( DB_SLAVE );
 170                 if ( $wgFixDoubleRedirects ) {
 171                         $hasRedirects = $dbr->selectField( 'redirect', '1',
 172                                 array(
 173                                         'rd_namespace' => $this->oldTitle->getNamespace(),
 174                                         'rd_title' => $this->oldTitle->getDBkey(),
 175                                 ) , __METHOD__ );
 176                 } else {
 177                         $hasRedirects = false;
 178                 }
 179
 180                 if ( $considerTalk ) {
 181                         $out->addWikiMsg( 'movepagetalktext' );
 182                 }
 183
 184                 $token = htmlspecialchars( $user->editToken() );
 185
 186                 if ( !empty($err) ) {
 187                         $out->setSubtitle( wfMsg( 'formerror' ) );
 188                         if( $err[0] == 'hookaborted' ) {
 189                                 $hookErr = $err[1];
 190                                 $errMsg = "<p><strong class=\"error\">$hookErr</strong></p>\n";
 191                                 $out->addHTML( $errMsg );
 192                         } else {
 193                                 $out->wrapWikiMsg( "<p><strong class=\"error\">\n$1\n</strong></p>", $err );
 194                         }
 195                 }
 196
 197                 if ( $this->oldTitle->isProtected( 'move' ) ) {
 198                         # Is the title semi-protected?
 199                         if ( $this->oldTitle->isSemiProtected( 'move' ) ) {
 200                                 $noticeMsg = 'semiprotectedpagemovewarning';
 201                                 $classes[] = 'mw-textarea-sprotected';
 202                         } else {
 203                                 # Then it must be protected based on static groups (regular)
 204                                 $noticeMsg = 'protectedpagemovewarning';
 205                                 $classes[] = 'mw-textarea-protected';
 206                         }
 207                         $out->addHTML( "<div class='mw-warning-with-logexcerpt'>\n" );
 208                         $out->addWikiMsg( $noticeMsg );
 209                         LogEventsList::showLogExtract( $out, 'protect', $this->oldTitle->getPrefixedText(), '', array( 'lim' => 1 ) );
 210                         $out->addHTML( "</div>\n" );
 211                 }
 212
 213                 $out->addHTML(
 214                          Xml::openElement( 'form', array( 'method' => 'post', 'action' => $this->getTitle()->getLocalURL( 'action=submit' ), 'id' => 'movepage' ) ) .
 215                          Xml::openElement( 'fieldset' ) .
 216                          Xml::element( 'legend', null, wfMsg( 'move-page-legend' ) ) .
 217                          Xml::openElement( 'table', array( 'border' => '0', 'id' => 'mw-movepage-table' ) ) .
 218                          "<tr>
 219                                 <td class='mw-label'>" .
 220                                         wfMsgHtml( 'movearticle' ) .
 221                                 "</td>
 222                                 <td class='mw-input'>
 223                                         <strong>{$oldTitleLink}</strong>
 224                                 </td>
 225                         </tr>
 226                         <tr>
 227                                 <td class='mw-label'>" .
 228                                         Xml::label( wfMsg( 'newtitle' ), 'wpNewTitle' ) .
 229                                 "</td>
 230                                 <td class='mw-input'>" .
 231                                         Xml::input( 'wpNewTitle', 40, $wgContLang->recodeForEdit( $newTitle->getPrefixedText() ), array( 'type' => 'text', 'id' => 'wpNewTitle' ) ) .
 232                                         Html::hidden( 'wpOldTitle', $this->oldTitle->getPrefixedText() ) .
 233                                 "</td>
 234                         </tr>
 235                         <tr>
 236                                 <td class='mw-label'>" .
 237                                         Xml::label( wfMsg( 'movereason' ), 'wpReason' ) .
 238                                 "</td>
 239                                 <td class='mw-input'>" .
 240                                         Html::element( 'textarea', array( 'name' => 'wpReason', 'id' => 'wpReason', 'cols' => 60, 'rows' => 2,
 241                                         'maxlength' => 200 ), $this->reason ) . // maxlength byte limit is enforce in mediawiki.special.movePage.js
 242                                 "</td>
 243                         </tr>"
 244                 );
 245
 246                 if( $considerTalk ) {
 247                         $out->addHTML( "
 248                                 <tr>
 249                                         <td></td>
 250                                         <td class='mw-input'>" .
 251                                                 Xml::checkLabel( wfMsg( 'movetalk' ), 'wpMovetalk', 'wpMovetalk', $this->moveTalk ) .
 252                                         "</td>
 253                                 </tr>"
 254                         );
 255                 }
 256
 257                 if ( $user->isAllowed( 'suppressredirect' ) ) {
 258                         $out->addHTML( "
 259                                 <tr>
 260                                         <td></td>
 261                                         <td class='mw-input' >" .
 262                                                 Xml::checkLabel( wfMsg( 'move-leave-redirect' ), 'wpLeaveRedirect',
 263                                                         'wpLeaveRedirect', $this->leaveRedirect ) .
 264                                         "</td>
 265                                 </tr>"
 266                         );
 267                 }
 268
 269                 if ( $hasRedirects ) {
 270                         $out->addHTML( "
 271                                 <tr>
 272                                         <td></td>
 273                                         <td class='mw-input' >" .
 274                                                 Xml::checkLabel( wfMsg( 'fix-double-redirects' ), 'wpFixRedirects',
 275                                                         'wpFixRedirects', $this->fixRedirects ) .
 276                                         "</td>
 277                                 </tr>"
 278                         );
 279                 }
 280
 281                 if( ($this->oldTitle->hasSubpages() || $this->oldTitle->getTalkPage()->hasSubpages())
 282                         && !count( $this->oldTitle->getUserPermissionsErrors( 'move-subpages', $user ) ) )
 283                 {
 284                         $out->addHTML( "
 285                                 <tr>
 286                                         <td></td>
 287                                         <td class=\"mw-input\">" .
 288                                 Xml::check(
 289                                         'wpMovesubpages',
 290                                         # Don't check the box if we only have talk subpages to
 291                                         # move and we aren't moving the talk page.
 292                                         $this->moveSubpages && ($this->oldTitle->hasSubpages() || $this->moveTalk),
 293                                         array( 'id' => 'wpMovesubpages' )
 294                                 ) . '&#160;' .
 295                                 Xml::tags( 'label', array( 'for' => 'wpMovesubpages' ),
 296                                         wfMsgExt(
 297                                                 ( $this->oldTitle->hasSubpages()
 298                                                         ? 'move-subpages'
 299                                                         : 'move-talk-subpages' ),
 300                                                 array( 'parseinline' ),
 301                                                 $this->getLang()->formatNum( $wgMaximumMovedPages ),
 302                                                 # $2 to allow use of PLURAL in message.
 303                                                 $wgMaximumMovedPages
 304                                         )
 305                                 ) .
 306                                         "</td>
 307                                 </tr>"
 308                         );
 309                 }
 310
 311                 $watchChecked = $user->isLoggedIn() && ($this->watch || $user->getBoolOption( 'watchmoves' )
 312                         || $this->oldTitle->userIsWatching());
 313                 # Don't allow watching if user is not logged in
 314                 if( $user->isLoggedIn() ) {
 315                         $out->addHTML( "
 316                         <tr>
 317                                 <td></td>
 318                                 <td class='mw-input'>" .
 319                                         Xml::checkLabel( wfMsg( 'move-watch' ), 'wpWatch', 'watch', $watchChecked ) .
 320                                 "</td>
 321                         </tr>");
 322                 }
 323
 324                 $out->addHTML( "
 325                                 {$confirm}
 326                         <tr>
 327                                 <td>&#160;</td>
 328                                 <td class='mw-submit'>" .
 329                                         Xml::submitButton( $movepagebtn, array( 'name' => $submitVar ) ) .
 330                                 "</td>
 331                         </tr>" .
 332                         Xml::closeElement( 'table' ) .
 333                         Html::hidden( 'wpEditToken', $token ) .
 334                         Xml::closeElement( 'fieldset' ) .
 335                         Xml::closeElement( 'form' ) .
 336                         "\n"
 337                 );
 338
 339                 $this->showLogFragment( $this->oldTitle );
 340                 $this->showSubpages( $this->oldTitle );
 341
 342         }
 343
 344         function doSubmit() {
 345                 global $wgMaximumMovedPages, $wgFixDoubleRedirects, $wgDeleteRevisionsLimit;
 346
 347                 $user = $this->getUser();
 348
 349                 if ( $user->pingLimiter( 'move' ) ) {
 350                         throw new ThrottledError;
 351                 }
 352
 353                 $ot = $this->oldTitle;
 354                 $nt = $this->newTitle;
 355
 356                 # Delete to make way if requested
 357                 if ( $user->isAllowed( 'delete' ) && $this->deleteAndMove ) {
 358                         $article = new Article( $nt );
 359
 360                         # Disallow deletions of big articles
 361                         $bigHistory = $article->isBigDeletion();
 362                         if( $bigHistory && count( $nt->getUserPermissionsErrors( 'bigdelete', $user ) ) ) {
 363                                 $this->showForm( array('delete-toobig', $this->getLang()->formatNum( $wgDeleteRevisionsLimit ) ) );
 364                                 return;
 365                         }
 366
 367                         // Delete an associated image if there is
 368                         $file = wfLocalFile( $nt );
 369                         if( $file->exists() ) {
 370                                 $file->delete( wfMsgForContent( 'delete_and_move_reason' ), false );
 371                         }
 372
 373                         // This may output an error message and exit
 374                         $article->doDelete( wfMsgForContent( 'delete_and_move_reason' ) );
 375                 }
 376
 377                 # don't allow moving to pages with # in
 378                 if ( !$nt || $nt->getFragment() != '' ) {
 379                         $this->showForm( 'badtitletext' );
 380                         return;
 381                 }
 382
 383                 # Show a warning if the target file exists on a shared repo
 384                 if ( $nt->getNamespace() == NS_FILE
 385                         && !( $this->moveOverShared && $user->isAllowed( 'reupload-shared' ) )
 386                         && !RepoGroup::singleton()->getLocalRepo()->findFile( $nt )
 387                         && wfFindFile( $nt ) )
 388                 {
 389                         $this->showForm( array('file-exists-sharedrepo') );
 390                         return;
 391
 392                 }
 393
 394                 if ( $user->isAllowed( 'suppressredirect' ) ) {
 395                         $createRedirect = $this->leaveRedirect;
 396                 } else {
 397                         $createRedirect = true;
 398                 }
 399
 400                 # Do the actual move.
 401                 $error = $ot->moveTo( $nt, true, $this->reason, $createRedirect );
 402                 if ( $error !== true ) {
 403                         # @todo FIXME: Show all the errors in a list, not just the first one
 404                         $this->showForm( reset( $error ) );
 405                         return;
 406                 }
 407
 408                 if ( $wgFixDoubleRedirects && $this->fixRedirects ) {
 409                         DoubleRedirectJob::fixRedirects( 'move', $ot, $nt );
 410                 }
 411
 412                 wfRunHooks( 'SpecialMovepageAfterMove', array( &$this, &$ot, &$nt ) );
 413
 414                 $out = $this->getOutput();
 415                 $out->setPagetitle( wfMsg( 'pagemovedsub' ) );
 416
 417                 $oldUrl = $ot->getFullUrl( 'redirect=no' );
 418                 $newUrl = $nt->getFullUrl();
 419                 $oldText = $ot->getPrefixedText();
 420                 $newText = $nt->getPrefixedText();
 421                 $oldLink = "<span class='plainlinks'>[$oldUrl $oldText]</span>";
 422                 $newLink = "<span class='plainlinks'>[$newUrl $newText]</span>";
 423
 424                 $msgName = $createRedirect ? 'movepage-moved-redirect' : 'movepage-moved-noredirect';
 425                 $out->addWikiMsg( 'movepage-moved', $oldLink, $newLink, $oldText, $newText );
 426                 $out->addWikiMsg( $msgName );
 427
 428                 # Now we move extra pages we've been asked to move: subpages and talk
 429                 # pages.  First, if the old page or the new page is a talk page, we
 430                 # can't move any talk pages: cancel that.
 431                 if( $ot->isTalkPage() || $nt->isTalkPage() ) {
 432                         $this->moveTalk = false;
 433                 }
 434
 435                 if ( count( $ot->getUserPermissionsErrors( 'move-subpages', $user ) ) ) {
 436                         $this->moveSubpages = false;
 437                 }
 438
 439                 # Next make a list of id's.  This might be marginally less efficient
 440                 # than a more direct method, but this is not a highly performance-cri-
 441                 # tical code path and readable code is more important here.
 442                 #
 443                 # Note: this query works nicely on MySQL 5, but the optimizer in MySQL
 444                 # 4 might get confused.  If so, consider rewriting as a UNION.
 445                 #
 446                 # If the target namespace doesn't allow subpages, moving with subpages
 447                 # would mean that you couldn't move them back in one operation, which
 448                 # is bad.
 449                 # @todo FIXME: A specific error message should be given in this case.
 450
 451                 // @todo FIXME: Use Title::moveSubpages() here
 452                 $dbr = wfGetDB( DB_MASTER );
 453                 if( $this->moveSubpages && (
 454                         MWNamespace::hasSubpages( $nt->getNamespace() ) || (
 455                                 $this->moveTalk &&
 456                                 MWNamespace::hasSubpages( $nt->getTalkPage()->getNamespace() )
 457                         )
 458                 ) ) {
 459                         $conds = array(
 460                                 'page_title' . $dbr->buildLike( $ot->getDBkey() . '/', $dbr->anyString() )
 461                                         .' OR page_title = ' . $dbr->addQuotes( $ot->getDBkey() )
 462                         );
 463                         $conds['page_namespace'] = array();
 464                         if( MWNamespace::hasSubpages( $nt->getNamespace() ) ) {
 465                                 $conds['page_namespace'] []= $ot->getNamespace();
 466                         }
 467                         if( $this->moveTalk && MWNamespace::hasSubpages( $nt->getTalkPage()->getNamespace() ) ) {
 468                                 $conds['page_namespace'] []= $ot->getTalkPage()->getNamespace();
 469                         }
 470                 } elseif( $this->moveTalk ) {
 471                         $conds = array(
 472                                 'page_namespace' => $ot->getTalkPage()->getNamespace(),
 473                                 'page_title' => $ot->getDBkey()
 474                         );
 475                 } else {
 476                         # Skip the query
 477                         $conds = null;
 478                 }
 479
 480                 $extraPages = array();
 481                 if( !is_null( $conds ) ) {
 482                         $extraPages = TitleArray::newFromResult(
 483                                 $dbr->select( 'page',
 484                                         array( 'page_id', 'page_namespace', 'page_title' ),
 485                                         $conds,
 486                                         __METHOD__
 487                                 )
 488                         );
 489                 }
 490
 491                 $extraOutput = array();
 492                 $count = 1;
 493                 foreach( $extraPages as $oldSubpage ) {
 494                         if( $ot->equals( $oldSubpage ) ) {
 495                                 # Already did this one.
 496                                 continue;
 497                         }
 498
 499                         $newPageName = preg_replace(
 500                                 '#^'.preg_quote( $ot->getDBkey(), '#' ).'#',
 501                                 StringUtils::escapeRegexReplacement( $nt->getDBkey() ), # bug 21234
 502                                 $oldSubpage->getDBkey()
 503                         );
 504                         if( $oldSubpage->isTalkPage() ) {
 505                                 $newNs = $nt->getTalkPage()->getNamespace();
 506                         } else {
 507                                 $newNs = $nt->getSubjectPage()->getNamespace();
 508                         }
 509                         # Bug 14385: we need makeTitleSafe because the new page names may
 510                         # be longer than 255 characters.
 511                         $newSubpage = Title::makeTitleSafe( $newNs, $newPageName );
 512                         if( !$newSubpage ) {
 513                                 $oldLink = Linker::linkKnown( $oldSubpage );
 514                                 $extraOutput []= wfMsgHtml( 'movepage-page-unmoved', $oldLink,
 515                                         htmlspecialchars(Title::makeName( $newNs, $newPageName )));
 516                                 continue;
 517                         }
 518
 519                         # This was copy-pasted from Renameuser, bleh.
 520                         if ( $newSubpage->exists() && !$oldSubpage->isValidMoveTarget( $newSubpage ) ) {
 521                                 $link = Linker::linkKnown( $newSubpage );
 522                                 $extraOutput []= wfMsgHtml( 'movepage-page-exists', $link );
 523                         } else {
 524                                 $success = $oldSubpage->moveTo( $newSubpage, true, $this->reason, $createRedirect );
 525                                 if( $success === true ) {
 526                                         if ( $this->fixRedirects ) {
 527                                                 DoubleRedirectJob::fixRedirects( 'move', $oldSubpage, $newSubpage );
 528                                         }
 529                                         $oldLink = Linker::linkKnown(
 530                                                 $oldSubpage,
 531                                                 null,
 532                                                 array(),
 533                                                 array( 'redirect' => 'no' )
 534                                         );
 535                                         $newLink = Linker::linkKnown( $newSubpage );
 536                                         $extraOutput []= wfMsgHtml( 'movepage-page-moved', $oldLink, $newLink );
 537                                         ++$count;
 538                                         if( $count >= $wgMaximumMovedPages ) {
 539                                                 $extraOutput []= wfMsgExt( 'movepage-max-pages', array( 'parsemag', 'escape' ), $this->getLang()->formatNum( $wgMaximumMovedPages ) );
 540                                                 break;
 541                                         }
 542                                 } else {
 543                                         $oldLink = Linker::linkKnown( $oldSubpage );
 544                                         $newLink = Linker::link( $newSubpage );
 545                                         $extraOutput []= wfMsgHtml( 'movepage-page-unmoved', $oldLink, $newLink );
 546                                 }
 547                         }
 548
 549                 }
 550
 551                 if( $extraOutput !== array() ) {
 552                         $out->addHTML( "<ul>\n<li>" . implode( "</li>\n<li>", $extraOutput ) . "</li>\n</ul>" );
 553                 }
 554
 555                 # Deal with watches (we don't watch subpages)
 556                 if( $this->watch && $user->isLoggedIn() ) {
 557                         $user->addWatch( $ot );
 558                         $user->addWatch( $nt );
 559                 } else {
 560                         $user->removeWatch( $ot );
 561                         $user->removeWatch( $nt );
 562                 }
 563
 564                 # Re-clear the file redirect cache, which may have been polluted by
 565                 # parsing in messages above. See CR r56745.
 566                 # @todo FIXME: Needs a more robust solution inside FileRepo.
 567                 if( $ot->getNamespace() == NS_FILE ) {
 568                         RepoGroup::singleton()->getLocalRepo()->invalidateImageRedirect( $ot );
 569                 }
 570         }
 571
 572         function showLogFragment( $title ) {
 573                 $out = $this->getOutput();
 574                 $out->addHTML( Xml::element( 'h2', null, LogPage::logName( 'move' ) ) );
 575                 LogEventsList::showLogExtract( $out, 'move', $title->getPrefixedText() );
 576         }
 577
 578         function showSubpages( $title ) {
 579                 if( !MWNamespace::hasSubpages( $title->getNamespace() ) )
 580                         return;
 581
 582                 $subpages = $title->getSubpages();
 583                 $count = $subpages instanceof TitleArray ? $subpages->count() : 0;
 584
 585                 $out = $this->getOutput();
 586                 $out->wrapWikiMsg( '== $1 ==', array( 'movesubpage', $count ) );
 587
 588                 # No subpages.
 589                 if ( $count == 0 ) {
 590                         $out->addWikiMsg( 'movenosubpage' );
 591                         return;
 592                 }
 593
 594                 $out->addWikiMsg( 'movesubpagetext', $this->getLang()->formatNum( $count ) );
 595                 $out->addHTML( "<ul>\n" );
 596
 597                 foreach( $subpages as $subpage ) {
 598                         $link = Linker::link( $subpage );
 599                         $out->addHTML( "<li>$link</li>\n" );
 600                 }
 601                 $out->addHTML( "</ul>\n" );
 602         }
 603 }
 604