3 * A handle for managing updates for derived page data on edit, import, purge, etc.
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.
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.
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
23 namespace MediaWiki\Storage
;
26 use CategoryMembershipChangeJob
;
34 use InvalidArgumentException
;
37 use LinksDeletionUpdate
;
40 use MediaWiki\Edit\PreparedEdit
;
41 use MediaWiki\Revision\MutableRevisionRecord
;
42 use MediaWiki\Revision\RenderedRevision
;
43 use MediaWiki\Revision\RevisionRecord
;
44 use MediaWiki\Revision\RevisionRenderer
;
45 use MediaWiki\Revision\RevisionSlots
;
46 use MediaWiki\Revision\RevisionStore
;
47 use MediaWiki\Revision\SlotRecord
;
48 use MediaWiki\User\UserIdentity
;
53 use RecentChangesUpdateJob
;
54 use ResourceLoaderWikiModule
;
60 use Wikimedia\Assert\Assert
;
61 use Wikimedia\Rdbms\LBFactory
;
65 * A handle for managing updates for derived page data on edit, import, purge, etc.
67 * @note Avoid direct usage of DerivedPageDataUpdater.
69 * @todo Define interfaces for the different use cases of DerivedPageDataUpdater, particularly
70 * providing access to post-PST content and ParserOutput to callbacks during revision creation,
71 * which currently use WikiPage::prepareContentForEdit, and allowing updates to be triggered on
72 * purge, import, and undeletion, which currently use WikiPage::doEditUpdates() and
73 * Content::getSecondaryDataUpdates().
75 * DerivedPageDataUpdater instances are designed to be cached inside a WikiPage instance,
76 * and re-used by callback code over the course of an update operation. It's a stepping stone
77 * one the way to a more complete refactoring of WikiPage.
79 * When using a DerivedPageDataUpdater, the following life cycle must be observed:
80 * grabCurrentRevision (optional), prepareContent (optional), prepareUpdate (required
81 * for doUpdates). getCanonicalParserOutput, getSlots, and getSecondaryDataUpdates
82 * require prepareContent or prepareUpdate to have been called first, to initialize the
83 * DerivedPageDataUpdater.
85 * @see docs/pageupdater.txt for more information.
87 * MCR migration note: this replaces the relevant methods in WikiPage, and covers the use cases
95 class DerivedPageDataUpdater
implements IDBAccessObject
{
98 * @var UserIdentity|null
100 private $user = null;
110 private $parserCache;
115 private $revisionStore;
125 private $jobQueueGroup;
130 private $messageCache;
135 private $loadbalancerFactory;
138 * @var string see $wgArticleCountMethod
140 private $articleCountMethod;
143 * @var boolean see $wgRCWatchCategoryMembership
145 private $rcWatchCategoryMembership = false;
148 * Stores (most of) the $options parameter of prepareUpdate().
149 * @see prepareUpdate()
156 'oldrevision' => null,
157 'oldcountable' => null,
158 'oldredirect' => null,
159 'triggeringUser' => null,
160 // causeAction/causeAgent default to 'unknown' but that's handled where it's read,
161 // to make the life of prepareUpdate() callers easier.
162 'causeAction' => null,
163 'causeAgent' => null,
167 * The state of the relevant row in page table before the edit.
168 * This is determined by the first call to grabCurrentRevision, prepareContent,
169 * or prepareUpdate (so it is only accessible in 'knows-current' or a later stage).
170 * If pageState was not initialized when prepareUpdate() is called, prepareUpdate() will
171 * attempt to emulate the state of the page table before the edit.
173 * Contains the following fields:
174 * - oldRevision (RevisionRecord|null): the revision that was current before the change
175 * associated with this update. Might not be set, use getParentRevision().
176 * - oldId (int|null): the id of the above revision. 0 if there is no such revision (the change
177 * was about creating a new page); null if not known (that should not happen).
178 * - oldIsRedirect (bool|null): whether the page was a redirect before the change. Lazy-loaded,
179 * can be null; use wasRedirect() instead of direct access.
180 * - oldCountable (bool|null): whether the page was countable before the change (or null
181 * if we don't have that information)
185 private $pageState = null;
188 * @var RevisionSlotsUpdate|null
190 private $slotsUpdate = null;
193 * @var RevisionRecord|null
195 private $parentRevision = null;
198 * @var RevisionRecord|null
200 private $revision = null;
203 * @var RenderedRevision
205 private $renderedRevision = null;
208 * @var RevisionRenderer
210 private $revisionRenderer;
213 * A stage identifier for managing the life cycle of this instance.
214 * Possible stages are 'new', 'knows-current', 'has-content', 'has-revision', and 'done'.
216 * @see docs/pageupdater.txt for documentation of the life cycle.
220 private $stage = 'new';
223 * Transition table for managing the life cycle of DerivedPageDateUpdater instances.
225 * XXX: Overkill. This is a linear order, we could just count. Names are nice though,
226 * and constants are also overkill...
228 * @see docs/pageupdater.txt for documentation of the life cycle.
232 private static $transitions = [
235 'knows-current' => true,
236 'has-content' => true,
237 'has-revision' => true,
240 'knows-current' => true,
241 'has-content' => true,
242 'has-revision' => true,
245 'has-content' => true,
246 'has-revision' => true,
249 'has-revision' => true,
255 * @param WikiPage $wikiPage ,
256 * @param RevisionStore $revisionStore
257 * @param RevisionRenderer $revisionRenderer
258 * @param ParserCache $parserCache
259 * @param JobQueueGroup $jobQueueGroup
260 * @param MessageCache $messageCache
261 * @param Language $contLang
262 * @param LBFactory $loadbalancerFactory
264 public function __construct(
266 RevisionStore
$revisionStore,
267 RevisionRenderer
$revisionRenderer,
268 ParserCache
$parserCache,
269 JobQueueGroup
$jobQueueGroup,
270 MessageCache
$messageCache,
272 LBFactory
$loadbalancerFactory
274 $this->wikiPage
= $wikiPage;
276 $this->parserCache
= $parserCache;
277 $this->revisionStore
= $revisionStore;
278 $this->revisionRenderer
= $revisionRenderer;
279 $this->jobQueueGroup
= $jobQueueGroup;
280 $this->messageCache
= $messageCache;
281 $this->contLang
= $contLang;
282 // XXX only needed for waiting for replicas to catch up; there should be a narrower
283 // interface for that.
284 $this->loadbalancerFactory
= $loadbalancerFactory;
288 * Transition function for managing the life cycle of this instances.
290 * @see docs/pageupdater.txt for documentation of the life cycle.
292 * @param string $newStage the new stage
293 * @return string the previous stage
295 * @throws LogicException If a transition to the given stage is not possible in the current
298 private function doTransition( $newStage ) {
299 $this->assertTransition( $newStage );
301 $oldStage = $this->stage
;
302 $this->stage
= $newStage;
308 * Asserts that a transition to the given stage is possible, without performing it.
310 * @see docs/pageupdater.txt for documentation of the life cycle.
312 * @param string $newStage the new stage
314 * @throws LogicException If this instance is not in the expected stage
316 private function assertTransition( $newStage ) {
317 if ( empty( self
::$transitions[$this->stage
][$newStage] ) ) {
318 throw new LogicException( "Cannot transition from {$this->stage} to $newStage" );
323 * @return bool|string
325 private function getWikiId() {
326 // TODO: get from RevisionStore
331 * Checks whether this DerivedPageDataUpdater can be re-used for running updates targeting
332 * the given revision.
334 * @param UserIdentity|null $user The user creating the revision in question
335 * @param RevisionRecord|null $revision New revision (after save, if already saved)
336 * @param RevisionSlotsUpdate|null $slotsUpdate New content (before PST)
337 * @param null|int $parentId Parent revision of the edit (use 0 for page creation)
341 public function isReusableFor(
342 UserIdentity
$user = null,
343 RevisionRecord
$revision = null,
344 RevisionSlotsUpdate
$slotsUpdate = null,
349 && $revision->getParentId() !== $parentId
351 throw new InvalidArgumentException( '$parentId should match the parent of $revision' );
356 && $revision->getUser( RevisionRecord
::RAW
)->getName() !== $user->getName()
358 throw new InvalidArgumentException( '$user should match the author of $revision' );
361 if ( $user && $this->user
&& $user->getName() !== $this->user
->getName() ) {
365 if ( $revision && $this->revision
&& $this->revision
->getId()
366 && $this->revision
->getId() !== $revision->getId()
371 if ( $revision && !$user ) {
372 $user = $revision->getUser( RevisionRecord
::RAW
);
375 if ( $this->pageState
377 && $revision->getParentId() !== null
378 && $this->pageState
['oldId'] !== $revision->getParentId()
383 if ( $this->pageState
384 && $parentId !== null
385 && $this->pageState
['oldId'] !== $parentId
392 && $this->revision
->getUser( RevisionRecord
::RAW
)
393 && $this->revision
->getUser( RevisionRecord
::RAW
)->getName() !== $user->getName()
400 && $this->revision
->getUser( RevisionRecord
::RAW
)
401 && $revision->getUser( RevisionRecord
::RAW
)->getName() !== $this->user
->getName()
406 // NOTE: this check is the primary reason for having the $this->slotsUpdate field!
407 if ( $this->slotsUpdate
409 && !$this->slotsUpdate
->hasSameUpdates( $slotsUpdate )
416 && !$this->revision
->getSlots()->hasSameContent( $revision->getSlots() )
425 * @param string $articleCountMethod "any" or "link".
426 * @see $wgArticleCountMethod
428 public function setArticleCountMethod( $articleCountMethod ) {
429 $this->articleCountMethod
= $articleCountMethod;
433 * @param bool $rcWatchCategoryMembership
434 * @see $wgRCWatchCategoryMembership
436 public function setRcWatchCategoryMembership( $rcWatchCategoryMembership ) {
437 $this->rcWatchCategoryMembership
= $rcWatchCategoryMembership;
443 private function getTitle() {
444 // NOTE: eventually, we won't get a WikiPage passed into the constructor any more
445 return $this->wikiPage
->getTitle();
451 private function getWikiPage() {
452 // NOTE: eventually, we won't get a WikiPage passed into the constructor any more
453 return $this->wikiPage
;
457 * Determines whether the page being edited already existed.
458 * Only defined after calling grabCurrentRevision() or prepareContent() or prepareUpdate()!
461 * @throws LogicException if called before grabCurrentRevision
463 public function pageExisted() {
464 $this->assertHasPageState( __METHOD__
);
466 return $this->pageState
['oldId'] > 0;
470 * Returns the parent revision of the new revision wrapped by this update.
471 * If the update is a null-edit, this will return the parent of the current (and new) revision.
472 * This will return null if the revision wrapped by this update created the page.
473 * Only defined after calling prepareContent() or prepareUpdate()!
475 * @return RevisionRecord|null the parent revision of the new revision, or null if
476 * the update created the page.
478 private function getParentRevision() {
479 $this->assertPrepared( __METHOD__
);
481 if ( $this->parentRevision
) {
482 return $this->parentRevision
;
485 if ( !$this->pageState
['oldId'] ) {
486 // If there was no current revision, there is no parent revision,
487 // since the page didn't exist.
491 $oldId = $this->revision
->getParentId();
492 $flags = $this->useMaster() ? RevisionStore
::READ_LATEST
: 0;
493 $this->parentRevision
= $oldId
494 ?
$this->revisionStore
->getRevisionById( $oldId, $flags )
497 return $this->parentRevision
;
501 * Returns the revision that was the page's current revision when grabCurrentRevision()
504 * During an edit, that revision will act as the logical parent of the new revision.
506 * Some updates are performed based on the difference between the database state at the
507 * moment this method is first called, and the state after the edit.
509 * @see docs/pageupdater.txt for more information on when thie method can and should be called.
511 * @note After prepareUpdate() was called, grabCurrentRevision() will throw an exception
512 * to avoid confusion, since the page's current revision is then the new revision after
513 * the edit, which was presumably passed to prepareUpdate() as the $revision parameter.
514 * Use getParentRevision() instead to access the revision that is the parent of the
517 * @return RevisionRecord|null the page's current revision, or null if the page does not
520 public function grabCurrentRevision() {
521 if ( $this->pageState
) {
522 return $this->pageState
['oldRevision'];
525 $this->assertTransition( 'knows-current' );
527 // NOTE: eventually, we won't get a WikiPage passed into the constructor any more
528 $wikiPage = $this->getWikiPage();
530 // Do not call WikiPage::clear(), since the caller may already have caused page data
531 // to be loaded with SELECT FOR UPDATE. Just assert it's loaded now.
532 $wikiPage->loadPageData( self
::READ_LATEST
);
533 $rev = $wikiPage->getRevision();
534 $current = $rev ?
$rev->getRevisionRecord() : null;
537 'oldRevision' => $current,
538 'oldId' => $rev ?
$rev->getId() : 0,
539 'oldIsRedirect' => $wikiPage->isRedirect(), // NOTE: uses page table
540 'oldCountable' => $wikiPage->isCountable(), // NOTE: uses pagelinks table
543 $this->doTransition( 'knows-current' );
545 return $this->pageState
['oldRevision'];
549 * Whether prepareUpdate() or prepareContent() have been called on this instance.
553 public function isContentPrepared() {
554 return $this->revision
!== null;
558 * Whether prepareUpdate() has been called on this instance.
560 * @note will also return null in case of a null-edit!
564 public function isUpdatePrepared() {
565 return $this->revision
!== null && $this->revision
->getId() !== null;
571 private function getPageId() {
572 // NOTE: eventually, we won't get a WikiPage passed into the constructor any more
573 return $this->wikiPage
->getId();
577 * Whether the content is deleted and thus not visible to the public.
581 public function isContentDeleted() {
582 if ( $this->revision
) {
583 // XXX: if that revision is the current revision, this should be skipped
584 return $this->revision
->isDeleted( RevisionRecord
::DELETED_TEXT
);
586 // If the content has not been saved yet, it cannot have been deleted yet.
592 * Returns the slot, modified or inherited, after PST, with no audience checks applied.
594 * @param string $role slot role name
596 * @throws PageUpdateException If the slot is neither set for update nor inherited from the
600 public function getRawSlot( $role ) {
601 return $this->getSlots()->getSlot( $role );
605 * Returns the content of the given slot, with no audience checks.
607 * @throws PageUpdateException If the slot is neither set for update nor inherited from the
609 * @param string $role slot role name
612 public function getRawContent( $role ) {
613 return $this->getRawSlot( $role )->getContent();
617 * Returns the content model of the given slot
619 * @param string $role slot role name
622 private function getContentModel( $role ) {
623 return $this->getRawSlot( $role )->getModel();
627 * @param string $role slot role name
628 * @return ContentHandler
630 private function getContentHandler( $role ) {
631 // TODO: inject something like a ContentHandlerRegistry
632 return ContentHandler
::getForModelID( $this->getContentModel( $role ) );
635 private function useMaster() {
636 // TODO: can we just set a flag to true in prepareContent()?
637 return $this->wikiPage
->wasLoadedFrom( self
::READ_LATEST
);
643 public function isCountable() {
644 // NOTE: Keep in sync with WikiPage::isCountable.
646 if ( !$this->getTitle()->isContentPage() ) {
650 if ( $this->isContentDeleted() ) {
651 // This should be irrelevant: countability only applies to the current revision,
652 // and the current revision is never suppressed.
656 if ( $this->isRedirect() ) {
662 if ( $this->articleCountMethod
=== 'link' ) {
663 $hasLinks = (bool)count( $this->getCanonicalParserOutput()->getLinks() );
666 // TODO: MCR: ask all slots if they have links [SlotHandler/PageTypeHandler]
667 $mainContent = $this->getRawContent( SlotRecord
::MAIN
);
668 return $mainContent->isCountable( $hasLinks );
674 public function isRedirect() {
675 // NOTE: main slot determines redirect status
676 $mainContent = $this->getRawContent( SlotRecord
::MAIN
);
678 return $mainContent->isRedirect();
682 * @param RevisionRecord $rev
686 private function revisionIsRedirect( RevisionRecord
$rev ) {
687 // NOTE: main slot determines redirect status
688 $mainContent = $rev->getContent( SlotRecord
::MAIN
, RevisionRecord
::RAW
);
690 return $mainContent->isRedirect();
694 * Prepare updates based on an update which has not yet been saved.
696 * This may be used to create derived data that is needed when creating a new revision;
697 * particularly, this makes available the slots of the new revision via the getSlots()
698 * method, after applying PST and slot inheritance.
700 * The derived data prepared for revision creation may then later be re-used by doUpdates(),
701 * without the need to re-calculate.
703 * @see docs/pageupdater.txt for more information on when thie method can and should be called.
705 * @note Calling this method more than once with the same $slotsUpdate
706 * has no effect. Calling this method multiple times with different content will cause
709 * @note Calling this method after prepareUpdate() has been called will cause an exception.
711 * @param User $user The user to act as context for pre-save transformation (PST).
712 * Type hint should be reduced to UserIdentity at some point.
713 * @param RevisionSlotsUpdate $slotsUpdate The new content of the slots to be updated
714 * by this edit, before PST.
715 * @param bool $useStash Whether to use stashed ParserOutput
717 public function prepareContent(
719 RevisionSlotsUpdate
$slotsUpdate,
722 if ( $this->slotsUpdate
) {
723 if ( !$this->user
) {
724 throw new LogicException(
725 'Unexpected state: $this->slotsUpdate was initialized, '
726 . 'but $this->user was not.'
730 if ( $this->user
->getName() !== $user->getName() ) {
731 throw new LogicException( 'Can\'t call prepareContent() again for different user! '
732 . 'Expected ' . $this->user
->getName() . ', got ' . $user->getName()
736 if ( !$this->slotsUpdate
->hasSameUpdates( $slotsUpdate ) ) {
737 throw new LogicException(
738 'Can\'t call prepareContent() again with different slot content!'
742 return; // prepareContent() already done, nothing to do
745 $this->assertTransition( 'has-content' );
747 $wikiPage = $this->getWikiPage(); // TODO: use only for legacy hooks!
748 $title = $this->getTitle();
750 $parentRevision = $this->grabCurrentRevision();
752 $this->slotsOutput
= [];
753 $this->canonicalParserOutput
= null;
755 // The edit may have already been prepared via api.php?action=stashedit
756 $stashedEdit = false;
758 // TODO: MCR: allow output for all slots to be stashed.
759 if ( $useStash && $slotsUpdate->isModifiedSlot( SlotRecord
::MAIN
) ) {
760 $mainContent = $slotsUpdate->getModifiedSlot( SlotRecord
::MAIN
)->getContent();
761 $legacyUser = User
::newFromIdentity( $user );
762 $stashedEdit = ApiStashEdit
::checkCache( $title, $mainContent, $legacyUser );
765 if ( $stashedEdit ) {
766 /** @var ParserOutput $output */
767 $output = $stashedEdit->output
;
769 // TODO: this should happen when stashing the ParserOutput, not now!
770 $output->setCacheTime( $stashedEdit->timestamp
);
772 // TODO: MCR: allow output for all slots to be stashed.
773 $this->canonicalParserOutput
= $output;
776 $userPopts = ParserOptions
::newFromUserAndLang( $user, $this->contLang
);
777 Hooks
::run( 'ArticlePrepareTextForEdit', [ $wikiPage, $userPopts ] );
780 $this->slotsUpdate
= $slotsUpdate;
782 if ( $parentRevision ) {
783 $this->revision
= MutableRevisionRecord
::newFromParentRevision( $parentRevision );
785 $this->revision
= new MutableRevisionRecord( $title );
788 // NOTE: user and timestamp must be set, so they can be used for
789 // {{subst:REVISIONUSER}} and {{subst:REVISIONTIMESTAMP}} in PST!
790 $this->revision
->setTimestamp( wfTimestampNow() );
791 $this->revision
->setUser( $user );
793 // Set up ParserOptions to operate on the new revision
794 $oldCallback = $userPopts->getCurrentRevisionCallback();
795 $userPopts->setCurrentRevisionCallback(
796 function ( Title
$parserTitle, $parser = false ) use ( $title, $oldCallback ) {
797 if ( $parserTitle->equals( $title ) ) {
798 $legacyRevision = new Revision( $this->revision
);
799 return $legacyRevision;
801 return call_user_func( $oldCallback, $parserTitle, $parser );
806 $pstContentSlots = $this->revision
->getSlots();
808 foreach ( $slotsUpdate->getModifiedRoles() as $role ) {
809 $slot = $slotsUpdate->getModifiedSlot( $role );
811 if ( $slot->isInherited() ) {
812 // No PST for inherited slots! Note that "modified" slots may still be inherited
813 // from an earlier version, e.g. for rollbacks.
815 } elseif ( $role === SlotRecord
::MAIN
&& $stashedEdit ) {
816 // TODO: MCR: allow PST content for all slots to be stashed.
817 $pstSlot = SlotRecord
::newUnsaved( $role, $stashedEdit->pstContent
);
819 $content = $slot->getContent();
820 $pstContent = $content->preSaveTransform( $title, $this->user
, $userPopts );
821 $pstSlot = SlotRecord
::newUnsaved( $role, $pstContent );
824 $pstContentSlots->setSlot( $pstSlot );
827 foreach ( $slotsUpdate->getRemovedRoles() as $role ) {
828 $pstContentSlots->removeSlot( $role );
831 $this->options
['created'] = ( $parentRevision === null );
832 $this->options
['changed'] = ( $parentRevision === null
833 ||
!$pstContentSlots->hasSameContent( $parentRevision->getSlots() ) );
835 $this->doTransition( 'has-content' );
837 if ( !$this->options
['changed'] ) {
840 // TODO: move this into MutableRevisionRecord
841 // TODO: This needs to behave differently for a forced dummy edit!
842 $this->revision
->setId( $parentRevision->getId() );
843 $this->revision
->setTimestamp( $parentRevision->getTimestamp() );
844 $this->revision
->setPageId( $parentRevision->getPageId() );
845 $this->revision
->setParentId( $parentRevision->getParentId() );
846 $this->revision
->setUser( $parentRevision->getUser( RevisionRecord
::RAW
) );
847 $this->revision
->setComment( $parentRevision->getComment( RevisionRecord
::RAW
) );
848 $this->revision
->setMinorEdit( $parentRevision->isMinor() );
849 $this->revision
->setVisibility( $parentRevision->getVisibility() );
851 // prepareUpdate() is redundant for null-edits
852 $this->doTransition( 'has-revision' );
854 $this->parentRevision
= $parentRevision;
859 * Returns the update's target revision - that is, the revision that will be the current
860 * revision after the update.
862 * @note Callers must treat the returned RevisionRecord's content as immutable, even
863 * if it is a MutableRevisionRecord instance. Other aspects of a MutableRevisionRecord
864 * returned from here, such as the user or the comment, may be changed, but may not
865 * be reflected in ParserOutput until after prepareUpdate() has been called.
867 * @todo This is currently used by PageUpdater::makeNewRevision() to construct an unsaved
868 * MutableRevisionRecord instance. Introduce something like an UnsavedRevisionFactory service
869 * for that purpose instead!
871 * @return RevisionRecord
873 public function getRevision() {
874 $this->assertPrepared( __METHOD__
);
875 return $this->revision
;
879 * @return RenderedRevision
881 public function getRenderedRevision() {
882 if ( !$this->renderedRevision
) {
883 $this->assertPrepared( __METHOD__
);
885 // NOTE: we want a canonical rendering, so don't pass $this->user or ParserOptions
886 // NOTE: the revision is either new or current, so we can bypass audience checks.
887 $this->renderedRevision
= $this->revisionRenderer
->getRenderedRevision(
891 [ 'use-master' => $this->useMaster(), 'audience' => RevisionRecord
::RAW
]
895 return $this->renderedRevision
;
898 private function assertHasPageState( $method ) {
899 if ( !$this->pageState
) {
900 throw new LogicException(
901 'Must call grabCurrentRevision() or prepareContent() '
902 . 'or prepareUpdate() before calling ' . $method
907 private function assertPrepared( $method ) {
908 if ( !$this->revision
) {
909 throw new LogicException(
910 'Must call prepareContent() or prepareUpdate() before calling ' . $method
915 private function assertHasRevision( $method ) {
916 if ( !$this->revision
->getId() ) {
917 throw new LogicException(
918 'Must call prepareUpdate() before calling ' . $method
924 * Whether the edit creates the page.
928 public function isCreation() {
929 $this->assertPrepared( __METHOD__
);
930 return $this->options
['created'];
934 * Whether the edit created, or should create, a new revision (that is, it's not a null-edit).
936 * @warning at present, "null-revisions" that do not change content but do have a revision
937 * record would return false after prepareContent(), but true after prepareUpdate()!
938 * This should probably be fixed.
942 public function isChange() {
943 $this->assertPrepared( __METHOD__
);
944 return $this->options
['changed'];
948 * Whether the page was a redirect before the edit.
952 public function wasRedirect() {
953 $this->assertHasPageState( __METHOD__
);
955 if ( $this->pageState
['oldIsRedirect'] === null ) {
956 /** @var RevisionRecord $rev */
957 $rev = $this->pageState
['oldRevision'];
959 $this->pageState
['oldIsRedirect'] = $this->revisionIsRedirect( $rev );
961 $this->pageState
['oldIsRedirect'] = false;
965 return $this->pageState
['oldIsRedirect'];
969 * Returns the slots of the target revision, after PST.
971 * @note Callers must treat the returned RevisionSlots instance as immutable, even
972 * if it is a MutableRevisionSlots instance.
974 * @return RevisionSlots
976 public function getSlots() {
977 $this->assertPrepared( __METHOD__
);
978 return $this->revision
->getSlots();
982 * Returns the RevisionSlotsUpdate for this updater.
984 * @return RevisionSlotsUpdate
986 private function getRevisionSlotsUpdate() {
987 $this->assertPrepared( __METHOD__
);
989 if ( !$this->slotsUpdate
) {
990 $old = $this->getParentRevision();
991 $this->slotsUpdate
= RevisionSlotsUpdate
::newFromRevisionSlots(
992 $this->revision
->getSlots(),
993 $old ?
$old->getSlots() : null
996 return $this->slotsUpdate
;
1000 * Returns the role names of the slots touched by the new revision,
1001 * including removed roles.
1005 public function getTouchedSlotRoles() {
1006 return $this->getRevisionSlotsUpdate()->getTouchedRoles();
1010 * Returns the role names of the slots modified by the new revision,
1011 * not including removed roles.
1015 public function getModifiedSlotRoles() {
1016 return $this->getRevisionSlotsUpdate()->getModifiedRoles();
1020 * Returns the role names of the slots removed by the new revision.
1024 public function getRemovedSlotRoles() {
1025 return $this->getRevisionSlotsUpdate()->getRemovedRoles();
1029 * Prepare derived data updates targeting the given Revision.
1031 * Calling this method requires the given revision to be present in the database.
1032 * This may be right after a new revision has been created, or when re-generating
1033 * derived data e.g. in ApiPurge, RefreshLinksJob, and the refreshLinks
1036 * @see docs/pageupdater.txt for more information on when thie method can and should be called.
1038 * @note Calling this method more than once with the same revision has no effect.
1039 * $options are only used for the first call. Calling this method multiple times with
1040 * different revisions will cause an exception.
1042 * @note If grabCurrentRevision() (or prepareContent()) has been called before
1043 * calling this method, $revision->getParentRevision() has to refer to the revision that
1044 * was the current revision at the time grabCurrentRevision() was called.
1046 * @param RevisionRecord $revision
1047 * @param array $options Array of options, following indexes are used:
1048 * - changed: bool, whether the revision changed the content (default true)
1049 * - created: bool, whether the revision created the page (default false)
1050 * - moved: bool, whether the page was moved (default false)
1051 * - restored: bool, whether the page was undeleted (default false)
1052 * - oldrevision: Revision object for the pre-update revision (default null)
1053 * - triggeringUser: The user triggering the update (UserIdentity, defaults to the
1054 * user who created the revision)
1055 * - oldredirect: bool, null, or string 'no-change' (default null):
1056 * - bool: whether the page was counted as a redirect before that
1057 * revision, only used in changed is true and created is false
1058 * - null or 'no-change': don't update the redirect status.
1059 * - oldcountable: bool, null, or string 'no-change' (default null):
1060 * - bool: whether the page was counted as an article before that
1061 * revision, only used in changed is true and created is false
1062 * - null: if created is false, don't update the article count; if created
1063 * is true, do update the article count
1064 * - 'no-change': don't update the article count, ever
1065 * When set to null, pageState['oldCountable'] will be used instead if available.
1066 * - causeAction: an arbitrary string identifying the reason for the update.
1067 * See DataUpdate::getCauseAction(). (default 'unknown')
1068 * - causeAgent: name of the user who caused the update. See DataUpdate::getCauseAgent().
1069 * (string, default 'unknown')
1071 public function prepareUpdate( RevisionRecord
$revision, array $options = [] ) {
1073 !isset( $options['oldrevision'] )
1074 ||
$options['oldrevision'] instanceof Revision
1075 ||
$options['oldrevision'] instanceof RevisionRecord
,
1076 '$options["oldrevision"]',
1077 'must be a RevisionRecord (or Revision)'
1080 !isset( $options['triggeringUser'] )
1081 ||
$options['triggeringUser'] instanceof UserIdentity
,
1082 '$options["triggeringUser"]',
1083 'must be a UserIdentity'
1086 if ( !$revision->getId() ) {
1087 throw new InvalidArgumentException(
1088 'Revision must have an ID set for it to be used with prepareUpdate()!'
1092 if ( $this->revision
&& $this->revision
->getId() ) {
1093 if ( $this->revision
->getId() === $revision->getId() ) {
1094 return; // nothing to do!
1096 throw new LogicException(
1097 'Trying to re-use DerivedPageDataUpdater with revision '
1098 . $revision->getId()
1099 . ', but it\'s already bound to revision '
1100 . $this->revision
->getId()
1105 if ( $this->revision
1106 && !$this->revision
->getSlots()->hasSameContent( $revision->getSlots() )
1108 throw new LogicException(
1109 'The Revision provided has mismatching content!'
1113 // Override fields defined in $this->options with values from $options.
1114 $this->options
= array_intersect_key( $options, $this->options
) +
$this->options
;
1116 if ( isset( $this->pageState
['oldId'] ) ) {
1117 $oldId = $this->pageState
['oldId'];
1118 } elseif ( isset( $this->options
['oldrevision'] ) ) {
1119 /** @var Revision|RevisionRecord $oldRev */
1120 $oldRev = $this->options
['oldrevision'];
1121 $oldId = $oldRev->getId();
1123 $oldId = $revision->getParentId();
1126 if ( $oldId !== null ) {
1127 // XXX: what if $options['changed'] disagrees?
1128 // MovePage creates a dummy revision with changed = false!
1129 // We may want to explicitly distinguish between "no new revision" (null-edit)
1130 // and "new revision without new content" (dummy revision).
1132 if ( $oldId === $revision->getParentId() ) {
1133 // NOTE: this may still be a NullRevision!
1135 $this->options
['changed'] = true;
1136 } elseif ( $oldId === $revision->getId() ) {
1138 $this->options
['changed'] = false;
1140 // This indicates that calling code has given us the wrong Revision object
1141 throw new LogicException(
1142 'The Revision mismatches old revision ID: '
1143 . 'Old ID is ' . $oldId
1144 . ', parent ID is ' . $revision->getParentId()
1145 . ', revision ID is ' . $revision->getId()
1150 // If prepareContent() was used to generate the PST content (which is indicated by
1151 // $this->slotsUpdate being set), and this is not a null-edit, then the given
1152 // revision must have the acting user as the revision author. Otherwise, user
1153 // signatures generated by PST would mismatch the user in the revision record.
1154 if ( $this->user
!== null && $this->options
['changed'] && $this->slotsUpdate
) {
1155 $user = $revision->getUser();
1156 if ( !$this->user
->equals( $user ) ) {
1157 throw new LogicException(
1158 'The Revision provided has a mismatching actor: expected '
1159 . $this->user
->getName()
1166 // If $this->pageState was not yet initialized by grabCurrentRevision or prepareContent,
1167 // emulate the state of the page table before the edit, as good as we can.
1168 if ( !$this->pageState
) {
1169 $this->pageState
= [
1170 'oldIsRedirect' => isset( $this->options
['oldredirect'] )
1171 && is_bool( $this->options
['oldredirect'] )
1172 ?
$this->options
['oldredirect']
1174 'oldCountable' => isset( $this->options
['oldcountable'] )
1175 && is_bool( $this->options
['oldcountable'] )
1176 ?
$this->options
['oldcountable']
1180 if ( $this->options
['changed'] ) {
1181 // The edit created a new revision
1182 $this->pageState
['oldId'] = $revision->getParentId();
1184 if ( isset( $this->options
['oldrevision'] ) ) {
1185 $rev = $this->options
['oldrevision'];
1186 $this->pageState
['oldRevision'] = $rev instanceof Revision
1187 ?
$rev->getRevisionRecord()
1191 // This is a null-edit, so the old revision IS the new revision!
1192 $this->pageState
['oldId'] = $revision->getId();
1193 $this->pageState
['oldRevision'] = $revision;
1197 // "created" is forced here
1198 $this->options
['created'] = ( $this->pageState
['oldId'] === 0 );
1200 $this->revision
= $revision;
1202 $this->doTransition( 'has-revision' );
1204 // NOTE: in case we have a User object, don't override with a UserIdentity.
1205 // We already checked that $revision->getUser() mathces $this->user;
1206 if ( !$this->user
) {
1207 $this->user
= $revision->getUser( RevisionRecord
::RAW
);
1210 // Prune any output that depends on the revision ID.
1211 if ( $this->renderedRevision
) {
1212 $this->renderedRevision
->updateRevision( $revision );
1215 // TODO: optionally get ParserOutput from the ParserCache here.
1216 // Move the logic used by RefreshLinksJob here!
1220 * @deprecated This only exists for B/C, use the getters on DerivedPageDataUpdater directly!
1221 * @return PreparedEdit
1223 public function getPreparedEdit() {
1224 $this->assertPrepared( __METHOD__
);
1226 $slotsUpdate = $this->getRevisionSlotsUpdate();
1227 $preparedEdit = new PreparedEdit();
1229 $preparedEdit->popts
= $this->getCanonicalParserOptions();
1230 $preparedEdit->output
= $this->getCanonicalParserOutput();
1231 $preparedEdit->pstContent
= $this->revision
->getContent( SlotRecord
::MAIN
);
1232 $preparedEdit->newContent
=
1233 $slotsUpdate->isModifiedSlot( SlotRecord
::MAIN
)
1234 ?
$slotsUpdate->getModifiedSlot( SlotRecord
::MAIN
)->getContent()
1235 : $this->revision
->getContent( SlotRecord
::MAIN
); // XXX: can we just remove this?
1236 $preparedEdit->oldContent
= null; // unused. // XXX: could get this from the parent revision
1237 $preparedEdit->revid
= $this->revision ?
$this->revision
->getId() : null;
1238 $preparedEdit->timestamp
= $preparedEdit->output
->getCacheTime();
1239 $preparedEdit->format
= $preparedEdit->pstContent
->getDefaultFormat();
1241 return $preparedEdit;
1245 * @param string $role
1246 * @param bool $generateHtml
1247 * @return ParserOutput
1249 public function getSlotParserOutput( $role, $generateHtml = true ) {
1250 return $this->getRenderedRevision()->getSlotParserOutput(
1252 [ 'generate-html' => $generateHtml ]
1257 * @return ParserOutput
1259 public function getCanonicalParserOutput() {
1260 return $this->getRenderedRevision()->getRevisionParserOutput();
1264 * @return ParserOptions
1266 public function getCanonicalParserOptions() {
1267 return $this->getRenderedRevision()->getOptions();
1271 * @param bool $recursive
1273 * @return DeferrableUpdate[]
1275 public function getSecondaryDataUpdates( $recursive = false ) {
1276 if ( $this->isContentDeleted() ) {
1277 // This shouldn't happen, since the current content is always public,
1278 // and DataUpates are only needed for current content.
1282 $output = $this->getCanonicalParserOutput();
1284 // Construct a LinksUpdate for the combined canonical output.
1285 $linksUpdate = new LinksUpdate(
1291 $allUpdates = [ $linksUpdate ];
1293 // NOTE: Run updates for all slots, not just the modified slots! Otherwise,
1294 // info for an inherited slot may end up being removed. This is also needed
1295 // to ensure that purges are effective.
1296 $renderedRevision = $this->getRenderedRevision();
1297 foreach ( $this->getSlots()->getSlotRoles() as $role ) {
1298 $slot = $this->getRawSlot( $role );
1299 $content = $slot->getContent();
1300 $handler = $content->getContentHandler();
1302 $updates = $handler->getSecondaryDataUpdates(
1308 $allUpdates = array_merge( $allUpdates, $updates );
1310 // TODO: remove B/C hack in 1.32!
1311 // NOTE: we assume that the combined output contains all relevant meta-data for
1313 $legacyUpdates = $content->getSecondaryDataUpdates(
1320 // HACK: filter out redundant and incomplete LinksUpdates
1321 $legacyUpdates = array_filter( $legacyUpdates, function ( $update ) {
1322 return !( $update instanceof LinksUpdate
);
1325 $allUpdates = array_merge( $allUpdates, $legacyUpdates );
1328 // XXX: if a slot was removed by an earlier edit, but deletion updates failed to run at
1329 // that time, we don't know for which slots to run deletion updates when purging a page.
1330 // We'd have to examine the entire history of the page to determine that. Perhaps there
1331 // could be a "try extra hard" mode for that case that would run a DB query to find all
1332 // roles/models ever used on the page. On the other hand, removing slots should be quite
1333 // rare, so perhaps this isn't worth the trouble.
1335 // TODO: consolidate with similar logic in WikiPage::getDeletionUpdates()
1336 $wikiPage = $this->getWikiPage();
1337 $parentRevision = $this->getParentRevision();
1338 foreach ( $this->getRemovedSlotRoles() as $role ) {
1339 // HACK: we should get the content model of the removed slot from a SlotRoleHandler!
1340 // For now, find the slot in the parent revision - if the slot was removed, it should
1341 // always exist in the parent revision.
1342 $parentSlot = $parentRevision->getSlot( $role, RevisionRecord
::RAW
);
1343 $content = $parentSlot->getContent();
1344 $handler = $content->getContentHandler();
1346 $updates = $handler->getDeletionUpdates(
1350 $allUpdates = array_merge( $allUpdates, $updates );
1352 // TODO: remove B/C hack in 1.32!
1353 $legacyUpdates = $content->getDeletionUpdates( $wikiPage );
1355 // HACK: filter out redundant and incomplete LinksDeletionUpdate
1356 $legacyUpdates = array_filter( $legacyUpdates, function ( $update ) {
1357 return !( $update instanceof LinksDeletionUpdate
);
1360 $allUpdates = array_merge( $allUpdates, $legacyUpdates );
1363 // TODO: hard deprecate SecondaryDataUpdates in favor of RevisionDataUpdates in 1.33!
1365 'RevisionDataUpdates',
1366 [ $this->getTitle(), $renderedRevision, &$allUpdates ]
1373 * Do standard updates after page edit, purge, or import.
1374 * Update links tables, site stats, search index, title cache, message cache, etc.
1375 * Purges pages that depend on this page when appropriate.
1376 * With a 10% chance, triggers pruning the recent changes table.
1378 * @note prepareUpdate() must be called before calling this method!
1380 * MCR migration note: this replaces WikiPage::doEditUpdates.
1382 public function doUpdates() {
1383 $this->assertTransition( 'done' );
1385 // TODO: move logic into a PageEventEmitter service
1387 $wikiPage = $this->getWikiPage(); // TODO: use only for legacy hooks!
1389 $legacyUser = User
::newFromIdentity( $this->user
);
1390 $legacyRevision = new Revision( $this->revision
);
1392 $this->doParserCacheUpdate();
1394 $this->doSecondaryDataUpdates( [
1395 // T52785 do not update any other pages on a null edit
1396 'recursive' => $this->options
['changed'],
1397 'defer' => DeferredUpdates
::POSTSEND
,
1400 // TODO: MCR: check if *any* changed slot supports categories!
1401 if ( $this->rcWatchCategoryMembership
1402 && $this->getContentHandler( SlotRecord
::MAIN
)->supportsCategories() === true
1403 && ( $this->options
['changed'] ||
$this->options
['created'] )
1404 && !$this->options
['restored']
1406 // Note: jobs are pushed after deferred updates, so the job should be able to see
1407 // the recent change entry (also done via deferred updates) and carry over any
1408 // bot/deletion/IP flags, ect.
1409 $this->jobQueueGroup
->lazyPush(
1410 new CategoryMembershipChangeJob(
1413 'pageId' => $this->getPageId(),
1414 'revTimestamp' => $this->revision
->getTimestamp(),
1420 // TODO: replace legacy hook! Use a listener on PageEventEmitter instead!
1421 $editInfo = $this->getPreparedEdit();
1422 Hooks
::run( 'ArticleEditUpdates', [ &$wikiPage, &$editInfo, $this->options
['changed'] ] );
1424 // TODO: replace legacy hook! Use a listener on PageEventEmitter instead!
1425 if ( Hooks
::run( 'ArticleEditUpdatesDeleteFromRecentchanges', [ &$wikiPage ] ) ) {
1426 // Flush old entries from the `recentchanges` table
1427 if ( mt_rand( 0, 9 ) == 0 ) {
1428 $this->jobQueueGroup
->lazyPush( RecentChangesUpdateJob
::newPurgeJob() );
1432 $id = $this->getPageId();
1433 $title = $this->getTitle();
1434 $dbKey = $title->getPrefixedDBkey();
1435 $shortTitle = $title->getDBkey();
1437 if ( !$title->exists() ) {
1438 wfDebug( __METHOD__
. ": Page doesn't exist any more, bailing out\n" );
1440 $this->doTransition( 'done' );
1444 if ( $this->options
['oldcountable'] === 'no-change' ||
1445 ( !$this->options
['changed'] && !$this->options
['moved'] )
1448 } elseif ( $this->options
['created'] ) {
1449 $good = (int)$this->isCountable();
1450 } elseif ( $this->options
['oldcountable'] !== null ) {
1451 $good = (int)$this->isCountable()
1452 - (int)$this->options
['oldcountable'];
1453 } elseif ( isset( $this->pageState
['oldCountable'] ) ) {
1454 $good = (int)$this->isCountable()
1455 - (int)$this->pageState
['oldCountable'];
1459 $edits = $this->options
['changed'] ?
1 : 0;
1460 $pages = $this->options
['created'] ?
1 : 0;
1462 DeferredUpdates
::addUpdate( SiteStatsUpdate
::factory(
1463 [ 'edits' => $edits, 'articles' => $good, 'pages' => $pages ]
1466 // TODO: make search infrastructure aware of slots!
1467 $mainSlot = $this->revision
->getSlot( SlotRecord
::MAIN
);
1468 if ( !$mainSlot->isInherited() && !$this->isContentDeleted() ) {
1469 DeferredUpdates
::addUpdate( new SearchUpdate( $id, $dbKey, $mainSlot->getContent() ) );
1472 // If this is another user's talk page, update newtalk.
1473 // Don't do this if $options['changed'] = false (null-edits) nor if
1474 // it's a minor edit and the user making the edit doesn't generate notifications for those.
1475 if ( $this->options
['changed']
1476 && $title->getNamespace() == NS_USER_TALK
1477 && $shortTitle != $legacyUser->getTitleKey()
1478 && !( $this->revision
->isMinor() && $legacyUser->isAllowed( 'nominornewtalk' ) )
1480 $recipient = User
::newFromName( $shortTitle, false );
1481 if ( !$recipient ) {
1482 wfDebug( __METHOD__
. ": invalid username\n" );
1484 // Allow extensions to prevent user notification
1485 // when a new message is added to their talk page
1486 // TODO: replace legacy hook! Use a listener on PageEventEmitter instead!
1487 if ( Hooks
::run( 'ArticleEditUpdateNewTalk', [ &$wikiPage, $recipient ] ) ) {
1488 if ( User
::isIP( $shortTitle ) ) {
1489 // An anonymous user
1490 $recipient->setNewtalk( true, $legacyRevision );
1491 } elseif ( $recipient->isLoggedIn() ) {
1492 $recipient->setNewtalk( true, $legacyRevision );
1494 wfDebug( __METHOD__
. ": don't need to notify a nonexistent user\n" );
1500 if ( $title->getNamespace() == NS_MEDIAWIKI
1501 && $this->getRevisionSlotsUpdate()->isModifiedSlot( SlotRecord
::MAIN
)
1503 $mainContent = $this->isContentDeleted() ?
null : $this->getRawContent( SlotRecord
::MAIN
);
1505 $this->messageCache
->updateMessageOverride( $title, $mainContent );
1508 // TODO: move onArticleCreate and onArticle into a PageEventEmitter service
1509 if ( $this->options
['created'] ) {
1510 WikiPage
::onArticleCreate( $title );
1511 } elseif ( $this->options
['changed'] ) { // T52785
1512 WikiPage
::onArticleEdit( $title, $legacyRevision, $this->getTouchedSlotRoles() );
1515 $oldRevision = $this->getParentRevision();
1516 $oldLegacyRevision = $oldRevision ?
new Revision( $oldRevision ) : null;
1518 // TODO: In the wiring, register a listener for this on the new PageEventEmitter
1519 ResourceLoaderWikiModule
::invalidateModuleCache(
1520 $title, $oldLegacyRevision, $legacyRevision, $this->getWikiId() ?
: wfWikiID()
1523 $this->doTransition( 'done' );
1527 * Do secondary data updates (such as updating link tables).
1529 * MCR note: this method is temporarily exposed via WikiPage::doSecondaryDataUpdates.
1531 * @param array $options
1532 * - recursive: make the update recursive, i.e. also update pages which transclude the
1533 * current page or otherwise depend on it (default: false)
1534 * - defer: one of the DeferredUpdates constants, or false to run immediately after waiting
1535 * for replication of the changes from the SecondaryDataUpdates hooks (default: false)
1536 * - transactionTicket: a transaction ticket from LBFactory::getEmptyTransactionTicket(),
1537 * only when defer is false (default: null)
1540 public function doSecondaryDataUpdates( array $options = [] ) {
1541 $this->assertHasRevision( __METHOD__
);
1543 'recursive' => false,
1545 'transactionTicket' => null,
1547 $deferValues = [ false, DeferredUpdates
::PRESEND
, DeferredUpdates
::POSTSEND
];
1548 if ( !in_array( $options['defer'], $deferValues, true ) ) {
1549 throw new InvalidArgumentException( 'invalid value for defer: ' . $options['defer'] );
1551 Assert
::parameterType( 'integer|null', $options['transactionTicket'],
1552 '$options[\'transactionTicket\']' );
1554 $updates = $this->getSecondaryDataUpdates( $options['recursive'] );
1556 $triggeringUser = $this->options
['triggeringUser'] ??
$this->user
;
1557 if ( !$triggeringUser instanceof User
) {
1558 $triggeringUser = User
::newFromIdentity( $triggeringUser );
1560 $causeAction = $this->options
['causeAction'] ??
'unknown';
1561 $causeAgent = $this->options
['causeAgent'] ??
'unknown';
1562 $legacyRevision = new Revision( $this->revision
);
1564 if ( $options['defer'] === false && $options['transactionTicket'] !== null ) {
1565 // For legacy hook handlers doing updates via LinksUpdateConstructed, make sure
1566 // any pending writes they made get flushed before the doUpdate() calls below.
1567 // This avoids snapshot-clearing errors in LinksUpdate::acquirePageLock().
1568 $this->loadbalancerFactory
->commitAndWaitForReplication(
1569 __METHOD__
, $options['transactionTicket']
1573 foreach ( $updates as $update ) {
1574 if ( $update instanceof DataUpdate
) {
1575 $update->setCause( $causeAction, $causeAgent );
1577 if ( $update instanceof LinksUpdate
) {
1578 $update->setRevision( $legacyRevision );
1579 $update->setTriggeringUser( $triggeringUser );
1581 if ( $options['defer'] === false ) {
1582 if ( $options['transactionTicket'] !== null ) {
1583 $update->setTransactionTicket( $options['transactionTicket'] );
1585 $update->doUpdate();
1587 DeferredUpdates
::addUpdate( $update, $options['defer'] );
1592 public function doParserCacheUpdate() {
1593 $this->assertHasRevision( __METHOD__
);
1595 $wikiPage = $this->getWikiPage(); // TODO: ParserCache should accept a RevisionRecord instead
1597 // NOTE: this may trigger the first parsing of the new content after an edit (when not
1598 // using pre-generated stashed output).
1599 // XXX: we may want to use the PoolCounter here. This would perhaps allow the initial parse
1600 // to be performed post-send. The client could already follow a HTTP redirect to the
1601 // page view, but would then have to wait for a response until rendering is complete.
1602 $output = $this->getCanonicalParserOutput();
1604 // Save it to the parser cache. Use the revision timestamp in the case of a
1605 // freshly saved edit, as that matches page_touched and a mismatch would trigger an
1606 // unnecessary reparse.
1607 $timestamp = $this->options
['changed'] ?
$this->revision
->getTimestamp()
1608 : $output->getTimestamp();
1609 $this->parserCache
->save(
1610 $output, $wikiPage, $this->getCanonicalParserOptions(),
1611 $timestamp, $this->revision
->getId()