includes/specials/SpecialMovepage.php

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