includes/MovePage.php

   1 <?php
   2
   3 /**
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  17  * http://www.gnu.org/copyleft/gpl.html
  18  *
  19  * @file
  20  */
  21
  22 use MediaWiki\MediaWikiServices;
  23 use MediaWiki\Revision\SlotRecord;
  24 use Wikimedia\Rdbms\IDatabase;
  25
  26 /**
  27  * Handles the backend logic of moving a page from one title
  28  * to another.
  29  *
  30  * @since 1.24
  31  */
  32 class MovePage {
  33
  34         /**
  35          * @var Title
  36          */
  37         protected $oldTitle;
  38
  39         /**
  40          * @var Title
  41          */
  42         protected $newTitle;
  43
  44         public function __construct( Title $oldTitle, Title $newTitle ) {
  45                 $this->oldTitle = $oldTitle;
  46                 $this->newTitle = $newTitle;
  47         }
  48
  49         public function checkPermissions( User $user, $reason ) {
  50                 $status = new Status();
  51
  52                 $errors = wfMergeErrorArrays(
  53                         $this->oldTitle->getUserPermissionsErrors( 'move', $user ),
  54                         $this->oldTitle->getUserPermissionsErrors( 'edit', $user ),
  55                         $this->newTitle->getUserPermissionsErrors( 'move-target', $user ),
  56                         $this->newTitle->getUserPermissionsErrors( 'edit', $user )
  57                 );
  58
  59                 // Convert into a Status object
  60                 if ( $errors ) {
  61                         foreach ( $errors as $error ) {
  62                                 $status->fatal( ...$error );
  63                         }
  64                 }
  65
  66                 if ( EditPage::matchSummarySpamRegex( $reason ) !== false ) {
  67                         // This is kind of lame, won't display nice
  68                         $status->fatal( 'spamprotectiontext' );
  69                 }
  70
  71                 $tp = $this->newTitle->getTitleProtection();
  72                 if ( $tp !== false && !$user->isAllowed( $tp['permission'] ) ) {
  73                                 $status->fatal( 'cantmove-titleprotected' );
  74                 }
  75
  76                 Hooks::run( 'MovePageCheckPermissions',
  77                         [ $this->oldTitle, $this->newTitle, $user, $reason, $status ]
  78                 );
  79
  80                 return $status;
  81         }
  82
  83         /**
  84          * Does various sanity checks that the move is
  85          * valid. Only things based on the two titles
  86          * should be checked here.
  87          *
  88          * @return Status
  89          */
  90         public function isValidMove() {
  91                 global $wgContentHandlerUseDB;
  92                 $status = new Status();
  93
  94                 if ( $this->oldTitle->equals( $this->newTitle ) ) {
  95                         $status->fatal( 'selfmove' );
  96                 }
  97                 if ( !$this->oldTitle->isMovable() ) {
  98                         $status->fatal( 'immobile-source-namespace', $this->oldTitle->getNsText() );
  99                 }
 100                 if ( $this->newTitle->isExternal() ) {
 101                         $status->fatal( 'immobile-target-namespace-iw' );
 102                 }
 103                 if ( !$this->newTitle->isMovable() ) {
 104                         $status->fatal( 'immobile-target-namespace', $this->newTitle->getNsText() );
 105                 }
 106
 107                 $oldid = $this->oldTitle->getArticleID();
 108
 109                 if ( $this->newTitle->getDBkey() === '' ) {
 110                         $status->fatal( 'articleexists' );
 111                 }
 112                 if (
 113                         ( $this->oldTitle->getDBkey() == '' ) ||
 114                         ( !$oldid ) ||
 115                         ( $this->newTitle->getDBkey() == '' )
 116                 ) {
 117                         $status->fatal( 'badarticleerror' );
 118                 }
 119
 120                 # The move is allowed only if (1) the target doesn't exist, or
 121                 # (2) the target is a redirect to the source, and has no history
 122                 # (so we can undo bad moves right after they're done).
 123                 if ( $this->newTitle->getArticleID() && !$this->isValidMoveTarget() ) {
 124                         $status->fatal( 'articleexists' );
 125                 }
 126
 127                 // Content model checks
 128                 if ( !$wgContentHandlerUseDB &&
 129                         $this->oldTitle->getContentModel() !== $this->newTitle->getContentModel() ) {
 130                         // can't move a page if that would change the page's content model
 131                         $status->fatal(
 132                                 'bad-target-model',
 133                                 ContentHandler::getLocalizedName( $this->oldTitle->getContentModel() ),
 134                                 ContentHandler::getLocalizedName( $this->newTitle->getContentModel() )
 135                         );
 136                 } elseif (
 137                         !ContentHandler::getForTitle( $this->oldTitle )->canBeUsedOn( $this->newTitle )
 138                 ) {
 139                         $status->fatal(
 140                                 'content-not-allowed-here',
 141                                 ContentHandler::getLocalizedName( $this->oldTitle->getContentModel() ),
 142                                 $this->newTitle->getPrefixedText(),
 143                                 SlotRecord::MAIN
 144                         );
 145                 }
 146
 147                 // Image-specific checks
 148                 if ( $this->oldTitle->inNamespace( NS_FILE ) ) {
 149                         $status->merge( $this->isValidFileMove() );
 150                 }
 151
 152                 if ( $this->newTitle->inNamespace( NS_FILE ) && !$this->oldTitle->inNamespace( NS_FILE ) ) {
 153                         $status->fatal( 'nonfile-cannot-move-to-file' );
 154                 }
 155
 156                 // Hook for extensions to say a title can't be moved for technical reasons
 157                 Hooks::run( 'MovePageIsValidMove', [ $this->oldTitle, $this->newTitle, $status ] );
 158
 159                 return $status;
 160         }
 161
 162         /**
 163          * Sanity checks for when a file is being moved
 164          *
 165          * @return Status
 166          */
 167         protected function isValidFileMove() {
 168                 $status = new Status();
 169                 $file = wfLocalFile( $this->oldTitle );
 170                 $file->load( File::READ_LATEST );
 171                 if ( $file->exists() ) {
 172                         if ( $this->newTitle->getText() != wfStripIllegalFilenameChars( $this->newTitle->getText() ) ) {
 173                                 $status->fatal( 'imageinvalidfilename' );
 174                         }
 175                         if ( !File::checkExtensionCompatibility( $file, $this->newTitle->getDBkey() ) ) {
 176                                 $status->fatal( 'imagetypemismatch' );
 177                         }
 178                 }
 179
 180                 if ( !$this->newTitle->inNamespace( NS_FILE ) ) {
 181                         $status->fatal( 'imagenocrossnamespace' );
 182                 }
 183
 184                 return $status;
 185         }
 186
 187         /**
 188          * Checks if $this can be moved to a given Title
 189          * - Selects for update, so don't call it unless you mean business
 190          *
 191          * @since 1.25
 192          * @return bool
 193          */
 194         protected function isValidMoveTarget() {
 195                 # Is it an existing file?
 196                 if ( $this->newTitle->inNamespace( NS_FILE ) ) {
 197                         $file = wfLocalFile( $this->newTitle );
 198                         $file->load( File::READ_LATEST );
 199                         if ( $file->exists() ) {
 200                                 wfDebug( __METHOD__ . ": file exists\n" );
 201                                 return false;
 202                         }
 203                 }
 204                 # Is it a redirect with no history?
 205                 if ( !$this->newTitle->isSingleRevRedirect() ) {
 206                         wfDebug( __METHOD__ . ": not a one-rev redirect\n" );
 207                         return false;
 208                 }
 209                 # Get the article text
 210                 $rev = Revision::newFromTitle( $this->newTitle, false, Revision::READ_LATEST );
 211                 if ( !is_object( $rev ) ) {
 212                         return false;
 213                 }
 214                 $content = $rev->getContent();
 215                 # Does the redirect point to the source?
 216                 # Or is it a broken self-redirect, usually caused by namespace collisions?
 217                 $redirTitle = $content ? $content->getRedirectTarget() : null;
 218
 219                 if ( $redirTitle ) {
 220                         if ( $redirTitle->getPrefixedDBkey() !== $this->oldTitle->getPrefixedDBkey() &&
 221                                 $redirTitle->getPrefixedDBkey() !== $this->newTitle->getPrefixedDBkey() ) {
 222                                 wfDebug( __METHOD__ . ": redirect points to other page\n" );
 223                                 return false;
 224                         } else {
 225                                 return true;
 226                         }
 227                 } else {
 228                         # Fail safe (not a redirect after all. strange.)
 229                         wfDebug( __METHOD__ . ": failsafe: database says " . $this->newTitle->getPrefixedDBkey() .
 230                                 " is a redirect, but it doesn't contain a valid redirect.\n" );
 231                         return false;
 232                 }
 233         }
 234
 235         /**
 236          * @param User $user
 237          * @param string $reason
 238          * @param bool $createRedirect
 239          * @param string[] $changeTags Change tags to apply to the entry in the move log. Caller
 240          *  should perform permission checks with ChangeTags::canAddTagsAccompanyingChange
 241          * @return Status
 242          */
 243         public function move( User $user, $reason, $createRedirect, array $changeTags = [] ) {
 244                 global $wgCategoryCollation;
 245
 246                 $status = Status::newGood();
 247                 Hooks::run( 'TitleMove', [ $this->oldTitle, $this->newTitle, $user, $reason, &$status ] );
 248                 if ( !$status->isOK() ) {
 249                         // Move was aborted by the hook
 250                         return $status;
 251                 }
 252
 253                 $dbw = wfGetDB( DB_MASTER );
 254                 $dbw->startAtomic( __METHOD__, IDatabase::ATOMIC_CANCELABLE );
 255
 256                 Hooks::run( 'TitleMoveStarting', [ $this->oldTitle, $this->newTitle, $user ] );
 257
 258                 $pageid = $this->oldTitle->getArticleID( Title::GAID_FOR_UPDATE );
 259                 $protected = $this->oldTitle->isProtected();
 260
 261                 // Do the actual move; if this fails, it will throw an MWException(!)
 262                 $nullRevision = $this->moveToInternal( $user, $this->newTitle, $reason, $createRedirect,
 263                         $changeTags );
 264
 265                 // Refresh the sortkey for this row.  Be careful to avoid resetting
 266                 // cl_timestamp, which may disturb time-based lists on some sites.
 267                 // @todo This block should be killed, it's duplicating code
 268                 // from LinksUpdate::getCategoryInsertions() and friends.
 269                 $prefixes = $dbw->select(
 270                         'categorylinks',
 271                         [ 'cl_sortkey_prefix', 'cl_to' ],
 272                         [ 'cl_from' => $pageid ],
 273                         __METHOD__
 274                 );
 275                 $type = MediaWikiServices::getInstance()->getNamespaceInfo()->
 276                         getCategoryLinkType( $this->newTitle->getNamespace() );
 277                 foreach ( $prefixes as $prefixRow ) {
 278                         $prefix = $prefixRow->cl_sortkey_prefix;
 279                         $catTo = $prefixRow->cl_to;
 280                         $dbw->update( 'categorylinks',
 281                                 [
 282                                         'cl_sortkey' => Collation::singleton()->getSortKey(
 283                                                         $this->newTitle->getCategorySortkey( $prefix ) ),
 284                                         'cl_collation' => $wgCategoryCollation,
 285                                         'cl_type' => $type,
 286                                         'cl_timestamp=cl_timestamp' ],
 287                                 [
 288                                         'cl_from' => $pageid,
 289                                         'cl_to' => $catTo ],
 290                                 __METHOD__
 291                         );
 292                 }
 293
 294                 $redirid = $this->oldTitle->getArticleID();
 295
 296                 if ( $protected ) {
 297                         # Protect the redirect title as the title used to be...
 298                         $res = $dbw->select(
 299                                 'page_restrictions',
 300                                 [ 'pr_type', 'pr_level', 'pr_cascade', 'pr_user', 'pr_expiry' ],
 301                                 [ 'pr_page' => $pageid ],
 302                                 __METHOD__,
 303                                 'FOR UPDATE'
 304                         );
 305                         $rowsInsert = [];
 306                         foreach ( $res as $row ) {
 307                                 $rowsInsert[] = [
 308                                         'pr_page' => $redirid,
 309                                         'pr_type' => $row->pr_type,
 310                                         'pr_level' => $row->pr_level,
 311                                         'pr_cascade' => $row->pr_cascade,
 312                                         'pr_user' => $row->pr_user,
 313                                         'pr_expiry' => $row->pr_expiry
 314                                 ];
 315                         }
 316                         $dbw->insert( 'page_restrictions', $rowsInsert, __METHOD__, [ 'IGNORE' ] );
 317
 318                         // Build comment for log
 319                         $comment = wfMessage(
 320                                 'prot_1movedto2',
 321                                 $this->oldTitle->getPrefixedText(),
 322                                 $this->newTitle->getPrefixedText()
 323                         )->inContentLanguage()->text();
 324                         if ( $reason ) {
 325                                 $comment .= wfMessage( 'colon-separator' )->inContentLanguage()->text() . $reason;
 326                         }
 327
 328                         // reread inserted pr_ids for log relation
 329                         $insertedPrIds = $dbw->select(
 330                                 'page_restrictions',
 331                                 'pr_id',
 332                                 [ 'pr_page' => $redirid ],
 333                                 __METHOD__
 334                         );
 335                         $logRelationsValues = [];
 336                         foreach ( $insertedPrIds as $prid ) {
 337                                 $logRelationsValues[] = $prid->pr_id;
 338                         }
 339
 340                         // Update the protection log
 341                         $logEntry = new ManualLogEntry( 'protect', 'move_prot' );
 342                         $logEntry->setTarget( $this->newTitle );
 343                         $logEntry->setComment( $comment );
 344                         $logEntry->setPerformer( $user );
 345                         $logEntry->setParameters( [
 346                                 '4::oldtitle' => $this->oldTitle->getPrefixedText(),
 347                         ] );
 348                         $logEntry->setRelations( [ 'pr_id' => $logRelationsValues ] );
 349                         $logEntry->setTags( $changeTags );
 350                         $logId = $logEntry->insert();
 351                         $logEntry->publish( $logId );
 352                 }
 353
 354                 // Update *_from_namespace fields as needed
 355                 if ( $this->oldTitle->getNamespace() != $this->newTitle->getNamespace() ) {
 356                         $dbw->update( 'pagelinks',
 357                                 [ 'pl_from_namespace' => $this->newTitle->getNamespace() ],
 358                                 [ 'pl_from' => $pageid ],
 359                                 __METHOD__
 360                         );
 361                         $dbw->update( 'templatelinks',
 362                                 [ 'tl_from_namespace' => $this->newTitle->getNamespace() ],
 363                                 [ 'tl_from' => $pageid ],
 364                                 __METHOD__
 365                         );
 366                         $dbw->update( 'imagelinks',
 367                                 [ 'il_from_namespace' => $this->newTitle->getNamespace() ],
 368                                 [ 'il_from' => $pageid ],
 369                                 __METHOD__
 370                         );
 371                 }
 372
 373                 # Update watchlists
 374                 $oldtitle = $this->oldTitle->getDBkey();
 375                 $newtitle = $this->newTitle->getDBkey();
 376                 $oldsnamespace = MWNamespace::getSubject( $this->oldTitle->getNamespace() );
 377                 $newsnamespace = MWNamespace::getSubject( $this->newTitle->getNamespace() );
 378                 if ( $oldsnamespace != $newsnamespace || $oldtitle != $newtitle ) {
 379                         $store = MediaWikiServices::getInstance()->getWatchedItemStore();
 380                         $store->duplicateAllAssociatedEntries( $this->oldTitle, $this->newTitle );
 381                 }
 382
 383                 // If it is a file then move it last.
 384                 // This is done after all database changes so that file system errors cancel the transaction.
 385                 if ( $this->oldTitle->getNamespace() == NS_FILE ) {
 386                         $status = $this->moveFile( $this->oldTitle, $this->newTitle );
 387                         if ( !$status->isOK() ) {
 388                                 $dbw->cancelAtomic( __METHOD__ );
 389                                 return $status;
 390                         }
 391                 }
 392
 393                 Hooks::run(
 394                         'TitleMoveCompleting',
 395                         [ $this->oldTitle, $this->newTitle,
 396                                 $user, $pageid, $redirid, $reason, $nullRevision ]
 397                 );
 398
 399                 $dbw->endAtomic( __METHOD__ );
 400
 401                 $params = [
 402                         &$this->oldTitle,
 403                         &$this->newTitle,
 404                         &$user,
 405                         $pageid,
 406                         $redirid,
 407                         $reason,
 408                         $nullRevision
 409                 ];
 410                 // Keep each single hook handler atomic
 411                 DeferredUpdates::addUpdate(
 412                         new AtomicSectionUpdate(
 413                                 $dbw,
 414                                 __METHOD__,
 415                                 // Hold onto $user to avoid HHVM bug where it no longer
 416                                 // becomes a reference (T118683)
 417                                 function () use ( $params, &$user ) {
 418                                         Hooks::run( 'TitleMoveComplete', $params );
 419                                 }
 420                         )
 421                 );
 422
 423                 return Status::newGood();
 424         }
 425
 426         /**
 427          * Move a file associated with a page to a new location.
 428          * Can also be used to revert after a DB failure.
 429          *
 430          * @private
 431          * @param Title $oldTitle Old location to move the file from.
 432          * @param Title $newTitle New location to move the file to.
 433          * @return Status
 434          */
 435         private function moveFile( $oldTitle, $newTitle ) {
 436                 $status = Status::newFatal(
 437                         'cannotdelete',
 438                         $oldTitle->getPrefixedText()
 439                 );
 440
 441                 $file = wfLocalFile( $oldTitle );
 442                 $file->load( File::READ_LATEST );
 443                 if ( $file->exists() ) {
 444                         $status = $file->move( $newTitle );
 445                 }
 446
 447                 // Clear RepoGroup process cache
 448                 RepoGroup::singleton()->clearCache( $oldTitle );
 449                 RepoGroup::singleton()->clearCache( $newTitle ); # clear false negative cache
 450                 return $status;
 451         }
 452
 453         /**
 454          * Move page to a title which is either a redirect to the
 455          * source page or nonexistent
 456          *
 457          * @todo This was basically directly moved from Title, it should be split into
 458          *   smaller functions
 459          * @param User $user the User doing the move
 460          * @param Title $nt The page to move to, which should be a redirect or non-existent
 461          * @param string $reason The reason for the move
 462          * @param bool $createRedirect Whether to leave a redirect at the old title. Does not check
 463          *   if the user has the suppressredirect right
 464          * @param string[] $changeTags Change tags to apply to the entry in the move log
 465          * @return Revision the revision created by the move
 466          * @throws MWException
 467          */
 468         private function moveToInternal( User $user, &$nt, $reason = '', $createRedirect = true,
 469                 array $changeTags = []
 470         ) {
 471                 if ( $nt->exists() ) {
 472                         $moveOverRedirect = true;
 473                         $logType = 'move_redir';
 474                 } else {
 475                         $moveOverRedirect = false;
 476                         $logType = 'move';
 477                 }
 478
 479                 if ( $moveOverRedirect ) {
 480                         $overwriteMessage = wfMessage(
 481                                         'delete_and_move_reason',
 482                                         $this->oldTitle->getPrefixedText()
 483                                 )->inContentLanguage()->text();
 484                         $newpage = WikiPage::factory( $nt );
 485                         $errs = [];
 486                         $status = $newpage->doDeleteArticleReal(
 487                                 $overwriteMessage,
 488                                 /* $suppress */ false,
 489                                 $nt->getArticleID(),
 490                                 /* $commit */ false,
 491                                 $errs,
 492                                 $user,
 493                                 $changeTags,
 494                                 'delete_redir'
 495                         );
 496
 497                         if ( !$status->isGood() ) {
 498                                 throw new MWException( 'Failed to delete page-move revision: '
 499                                         . $status->getWikiText( false, false, 'en' ) );
 500                         }
 501
 502                         $nt->resetArticleID( false );
 503                 }
 504
 505                 if ( $createRedirect ) {
 506                         if ( $this->oldTitle->getNamespace() == NS_CATEGORY
 507                                 && !wfMessage( 'category-move-redirect-override' )->inContentLanguage()->isDisabled()
 508                         ) {
 509                                 $redirectContent = new WikitextContent(
 510                                         wfMessage( 'category-move-redirect-override' )
 511                                                 ->params( $nt->getPrefixedText() )->inContentLanguage()->plain() );
 512                         } else {
 513                                 $contentHandler = ContentHandler::getForTitle( $this->oldTitle );
 514                                 $redirectContent = $contentHandler->makeRedirectContent( $nt,
 515                                         wfMessage( 'move-redirect-text' )->inContentLanguage()->plain() );
 516                         }
 517
 518                         // NOTE: If this page's content model does not support redirects, $redirectContent will be null.
 519                 } else {
 520                         $redirectContent = null;
 521                 }
 522
 523                 // Figure out whether the content model is no longer the default
 524                 $oldDefault = ContentHandler::getDefaultModelFor( $this->oldTitle );
 525                 $contentModel = $this->oldTitle->getContentModel();
 526                 $newDefault = ContentHandler::getDefaultModelFor( $nt );
 527                 $defaultContentModelChanging = ( $oldDefault !== $newDefault
 528                         && $oldDefault === $contentModel );
 529
 530                 // T59084: log_page should be the ID of the *moved* page
 531                 $oldid = $this->oldTitle->getArticleID();
 532                 $logTitle = clone $this->oldTitle;
 533
 534                 $logEntry = new ManualLogEntry( 'move', $logType );
 535                 $logEntry->setPerformer( $user );
 536                 $logEntry->setTarget( $logTitle );
 537                 $logEntry->setComment( $reason );
 538                 $logEntry->setParameters( [
 539                         '4::target' => $nt->getPrefixedText(),
 540                         '5::noredir' => $redirectContent ? '0' : '1',
 541                 ] );
 542
 543                 $formatter = LogFormatter::newFromEntry( $logEntry );
 544                 $formatter->setContext( RequestContext::newExtraneousContext( $this->oldTitle ) );
 545                 $comment = $formatter->getPlainActionText();
 546                 if ( $reason ) {
 547                         $comment .= wfMessage( 'colon-separator' )->inContentLanguage()->text() . $reason;
 548                 }
 549
 550                 $dbw = wfGetDB( DB_MASTER );
 551
 552                 $oldpage = WikiPage::factory( $this->oldTitle );
 553                 $oldcountable = $oldpage->isCountable();
 554
 555                 $newpage = WikiPage::factory( $nt );
 556
 557                 # Change the name of the target page:
 558                 $dbw->update( 'page',
 559                         /* SET */ [
 560                                 'page_namespace' => $nt->getNamespace(),
 561                                 'page_title' => $nt->getDBkey(),
 562                         ],
 563                         /* WHERE */ [ 'page_id' => $oldid ],
 564                         __METHOD__
 565                 );
 566
 567                 # Save a null revision in the page's history notifying of the move
 568                 $nullRevision = Revision::newNullRevision( $dbw, $oldid, $comment, true, $user );
 569                 if ( !is_object( $nullRevision ) ) {
 570                         throw new MWException( 'Failed to create null revision while moving page ID '
 571                                 . $oldid . ' to ' . $nt->getPrefixedDBkey() );
 572                 }
 573
 574                 $nullRevId = $nullRevision->insertOn( $dbw );
 575                 $logEntry->setAssociatedRevId( $nullRevId );
 576
 577                 /**
 578                  * T163966
 579                  * Increment user_editcount during page moves
 580                  * Moved from SpecialMovepage.php per T195550
 581                  */
 582                 $user->incEditCount();
 583
 584                 if ( !$redirectContent ) {
 585                         // Clean up the old title *before* reset article id - T47348
 586                         WikiPage::onArticleDelete( $this->oldTitle );
 587                 }
 588
 589                 $this->oldTitle->resetArticleID( 0 ); // 0 == non existing
 590                 $nt->resetArticleID( $oldid );
 591                 $newpage->loadPageData( WikiPage::READ_LOCKING ); // T48397
 592
 593                 $newpage->updateRevisionOn( $dbw, $nullRevision );
 594
 595                 Hooks::run( 'NewRevisionFromEditComplete',
 596                         [ $newpage, $nullRevision, $nullRevision->getParentId(), $user ] );
 597
 598                 $newpage->doEditUpdates( $nullRevision, $user,
 599                         [ 'changed' => false, 'moved' => true, 'oldcountable' => $oldcountable ] );
 600
 601                 // If the default content model changes, we need to populate rev_content_model
 602                 if ( $defaultContentModelChanging ) {
 603                         $dbw->update(
 604                                 'revision',
 605                                 [ 'rev_content_model' => $contentModel ],
 606                                 [ 'rev_page' => $nt->getArticleID(), 'rev_content_model IS NULL' ],
 607                                 __METHOD__
 608                         );
 609                 }
 610
 611                 WikiPage::onArticleCreate( $nt );
 612
 613                 # Recreate the redirect, this time in the other direction.
 614                 if ( $redirectContent ) {
 615                         $redirectArticle = WikiPage::factory( $this->oldTitle );
 616                         $redirectArticle->loadFromRow( false, WikiPage::READ_LOCKING ); // T48397
 617                         $newid = $redirectArticle->insertOn( $dbw );
 618                         if ( $newid ) { // sanity
 619                                 $this->oldTitle->resetArticleID( $newid );
 620                                 $redirectRevision = new Revision( [
 621                                         'title' => $this->oldTitle, // for determining the default content model
 622                                         'page' => $newid,
 623                                         'user_text' => $user->getName(),
 624                                         'user' => $user->getId(),
 625                                         'comment' => $comment,
 626                                         'content' => $redirectContent ] );
 627                                 $redirectRevId = $redirectRevision->insertOn( $dbw );
 628                                 $redirectArticle->updateRevisionOn( $dbw, $redirectRevision, 0 );
 629
 630                                 Hooks::run( 'NewRevisionFromEditComplete',
 631                                         [ $redirectArticle, $redirectRevision, false, $user ] );
 632
 633                                 $redirectArticle->doEditUpdates( $redirectRevision, $user, [ 'created' => true ] );
 634
 635                                 // make a copy because of log entry below
 636                                 $redirectTags = $changeTags;
 637                                 if ( in_array( 'mw-new-redirect', ChangeTags::getSoftwareTags() ) ) {
 638                                         $redirectTags[] = 'mw-new-redirect';
 639                                 }
 640                                 ChangeTags::addTags( $redirectTags, null, $redirectRevId, null );
 641                         }
 642                 }
 643
 644                 # Log the move
 645                 $logid = $logEntry->insert();
 646
 647                 $logEntry->setTags( $changeTags );
 648                 $logEntry->publish( $logid );
 649
 650                 return $nullRevision;
 651         }
 652 }