A handle for managing updates for derived page data on edit, import, purge, etc. More...

Inheritance diagram for MediaWiki\Storage\DerivedPageDataUpdater:

Collaboration diagram for MediaWiki\Storage\DerivedPageDataUpdater:

[legend]

Public Member Functions
	__construct (WikiPage $wikiPage, RevisionStore $revisionStore, RevisionRenderer $revisionRenderer, SlotRoleRegistry $slotRoleRegistry, ParserCache $parserCache, JobQueueGroup $jobQueueGroup, MessageCache $messageCache, Language $contLang, ILBFactory $loadbalancerFactory, IContentHandlerFactory $contentHandlerFactory, HookContainer $hookContainer)

	doParserCacheUpdate ()

	doSecondaryDataUpdates (array $options=[])
	Do secondary data updates (e.g. More...

	doUpdates ()
	Do standard updates after page edit, purge, or import. More...

	getCanonicalParserOptions ()

	getCanonicalParserOutput ()

	getModifiedSlotRoles ()
	Returns the role names of the slots modified by the new revision, not including removed roles. More...

	getPreparedEdit ()

	getRawContent ( $role)
	Returns the content of the given slot, with no audience checks. More...

	getRawSlot ( $role)
	Returns the slot, modified or inherited, after PST, with no audience checks applied. More...

	getRemovedSlotRoles ()
	Returns the role names of the slots removed by the new revision. More...

	getRenderedRevision ()

	getRevision ()
	Returns the update's target revision - that is, the revision that will be the current revision after the update. More...

	getSecondaryDataUpdates ( $recursive=false)

	getSlotParserOutput ( $role, $generateHtml=true)

	getSlots ()
	Returns the slots of the target revision, after PST. More...

	getTouchedSlotRoles ()
	Returns the role names of the slots touched by the new revision, including removed roles. More...

	grabCurrentRevision ()
	Returns the revision that was the page's current revision when grabCurrentRevision() was first called. More...

	isChange ()
	Whether the edit created, or should create, a new revision (that is, it's not a null-edit). More...

	isContentDeleted ()
	Whether the content is deleted and thus not visible to the public. More...

	isContentPrepared ()
	Whether prepareUpdate() or prepareContent() have been called on this instance. More...

	isCountable ()

	isCreation ()
	Whether the edit creates the page. More...

	isRedirect ()

	isReusableFor (UserIdentity $user=null, RevisionRecord $revision=null, RevisionSlotsUpdate $slotsUpdate=null, $parentId=null)
	Checks whether this DerivedPageDataUpdater can be re-used for running updates targeting the given revision. More...

	isUpdatePrepared ()
	Whether prepareUpdate() has been called on this instance. More...

	pageExisted ()
	Determines whether the page being edited already existed. More...

	prepareContent (User $user, RevisionSlotsUpdate $slotsUpdate, $useStash=true)
	Prepare updates based on an update which has not yet been saved. More...

	prepareUpdate (RevisionRecord $revision, array $options=[])
	Prepare derived data updates targeting the given Revision. More...

	setArticleCountMethod ( $articleCountMethod)

	setLogger (LoggerInterface $logger)

	setRcWatchCategoryMembership ( $rcWatchCategoryMembership)

	wasRedirect ()
	Whether the page was a redirect before the edit. More...

Private Member Functions
	assertHasPageState ( $method)

	assertHasRevision ( $method)

	assertPrepared ( $method)

	assertTransition ( $newStage)
	Asserts that a transition to the given stage is possible, without performing it. More...

	doTransition ( $newStage)
	Transition function for managing the life cycle of this instances. More...

	getContentHandler ( $role)

	getContentModel ( $role)
	Returns the content model of the given slot. More...

	getPageId ()

	getParentRevision ()
	Returns the parent revision of the new revision wrapped by this update. More...

	getRevisionSlotsUpdate ()
	Returns the RevisionSlotsUpdate for this updater. More...

	getTitle ()

	getWikiPage ()

	revisionIsRedirect (RevisionRecord $rev)

	useMaster ()

Private Attributes
string	$articleCountMethod
	see $wgArticleCountMethod More...

IContentHandlerFactory	$contentHandlerFactory

Language	$contLang

HookRunner	$hookRunner

JobQueueGroup	$jobQueueGroup

ILBFactory	$loadbalancerFactory

LoggerInterface	$logger

MessageCache	$messageCache

	$options
	Stores (most of) the $options parameter of prepareUpdate(). More...

array	$pageState = null
	The state of the relevant row in page table before the edit. More...

RevisionRecord null	$parentRevision = null

ParserCache	$parserCache

boolean	$rcWatchCategoryMembership = false
	see $wgRCWatchCategoryMembership More...

RenderedRevision	$renderedRevision = null

RevisionRecord null	$revision = null

RevisionRenderer	$revisionRenderer

RevisionStore	$revisionStore

SlotRoleRegistry	$slotRoleRegistry

RevisionSlotsUpdate null	$slotsUpdate = null

string	$stage = 'new'
	A stage identifier for managing the life cycle of this instance. More...

UserIdentity null	$user = null

WikiPage	$wikiPage

Additional Inherited Members
Public Attributes inherited from IDBAccessObject
const	READ_LOCKING = self::READ_LATEST \| 2
	Constants for object loading bitfield flags (higher => higher QoS) More...

const	READ_NONE = -1

Detailed Description

A handle for managing updates for derived page data on edit, import, purge, etc.

Note: Avoid direct usage of DerivedPageDataUpdater.

Todo:: Define interfaces for the different use cases of DerivedPageDataUpdater, particularly providing access to post-PST content and ParserOutput to callbacks during revision creation, which currently use WikiPage::prepareContentForEdit, and allowing updates to be triggered on purge, import, and undeletion, which currently use WikiPage::doEditUpdates() and Content::getSecondaryDataUpdates().

DerivedPageDataUpdater instances are designed to be cached inside a WikiPage instance, and re-used by callback code over the course of an update operation. It's a stepping stone on the way to a more complete refactoring of WikiPage.

When using a DerivedPageDataUpdater, the following life cycle must be observed: grabCurrentRevision (optional), prepareContent (optional), prepareUpdate (required for doUpdates). getCanonicalParserOutput, getSlots, and getSecondaryDataUpdates require prepareContent or prepareUpdate to have been called first, to initialize the DerivedPageDataUpdater.

See also: docs/pageupdater.md for more information.

MCR migration note: this replaces the relevant methods in WikiPage, and covers the use cases of PreparedEdit.

Definition at line 103 of file DerivedPageDataUpdater.php.

Constructor & Destructor Documentation

◆ __construct()

MediaWiki\Storage\DerivedPageDataUpdater::__construct	(	WikiPage	$wikiPage,
		RevisionStore	$revisionStore,
		RevisionRenderer	$revisionRenderer,
		SlotRoleRegistry	$slotRoleRegistry,
		ParserCache	$parserCache,
		JobQueueGroup	$jobQueueGroup,
		MessageCache	$messageCache,
		Language	$contLang,
		ILBFactory	$loadbalancerFactory,
		IContentHandlerFactory	$contentHandlerFactory,
		HookContainer	$hookContainer
	)

Parameters

WikiPage $wikiPage

Definition at line 296 of file DerivedPageDataUpdater.php.

Member Function Documentation

◆ assertHasPageState()

MediaWiki\Storage\DerivedPageDataUpdater::assertHasPageState ( $method )

private

Definition at line 924 of file DerivedPageDataUpdater.php.

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\pageExisted(), and MediaWiki\Storage\DerivedPageDataUpdater\wasRedirect().

◆ assertHasRevision()

MediaWiki\Storage\DerivedPageDataUpdater::assertHasRevision ( $method )

private

Definition at line 941 of file DerivedPageDataUpdater.php.

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\doParserCacheUpdate(), and MediaWiki\Storage\DerivedPageDataUpdater\doSecondaryDataUpdates().

◆ assertPrepared()

MediaWiki\Storage\DerivedPageDataUpdater::assertPrepared ( $method )

private

Definition at line 933 of file DerivedPageDataUpdater.php.

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\getParentRevision(), MediaWiki\Storage\DerivedPageDataUpdater\getPreparedEdit(), MediaWiki\Storage\DerivedPageDataUpdater\getRenderedRevision(), MediaWiki\Storage\DerivedPageDataUpdater\getRevision(), MediaWiki\Storage\DerivedPageDataUpdater\getRevisionSlotsUpdate(), MediaWiki\Storage\DerivedPageDataUpdater\getSlots(), MediaWiki\Storage\DerivedPageDataUpdater\isChange(), and MediaWiki\Storage\DerivedPageDataUpdater\isCreation().

◆ assertTransition()

MediaWiki\Storage\DerivedPageDataUpdater::assertTransition ( $newStage )

private

Asserts that a transition to the given stage is possible, without performing it.

See also: docs/pageupdater.md for documentation of the life cycle.

Parameters

string $newStage the new stage

Exceptions

LogicException If this instance is not in the expected stage

Definition at line 360 of file DerivedPageDataUpdater.php.

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\doTransition(), MediaWiki\Storage\DerivedPageDataUpdater\doUpdates(), MediaWiki\Storage\DerivedPageDataUpdater\grabCurrentRevision(), and MediaWiki\Storage\DerivedPageDataUpdater\prepareContent().

◆ doParserCacheUpdate()

MediaWiki\Storage\DerivedPageDataUpdater::doParserCacheUpdate ( )

Definition at line 1651 of file DerivedPageDataUpdater.php.

References MediaWiki\Storage\DerivedPageDataUpdater\$wikiPage, MediaWiki\Storage\DerivedPageDataUpdater\assertHasRevision(), MediaWiki\Storage\DerivedPageDataUpdater\getCanonicalParserOptions(), MediaWiki\Storage\DerivedPageDataUpdater\getCanonicalParserOutput(), and MediaWiki\Storage\DerivedPageDataUpdater\getWikiPage().

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\doUpdates().

◆ doSecondaryDataUpdates()

MediaWiki\Storage\DerivedPageDataUpdater::doSecondaryDataUpdates ( array $options = [] )

Do secondary data updates (e.g.

updating link tables) or schedule them as deferred updates

MCR note: this method is temporarily exposed via WikiPage::doSecondaryDataUpdates.

Parameters

array

$options

recursive: make the update recursive, i.e. also update pages which transclude the current page or otherwise depend on it (default: false)
defer: one of the DeferredUpdates constants, or false to run immediately after waiting for replication of the changes from the SecondaryDataUpdates hooks (default: false)

Since: 1.32

Definition at line 1615 of file DerivedPageDataUpdater.php.

References MediaWiki\Storage\DerivedPageDataUpdater\$options, MediaWiki\Storage\DerivedPageDataUpdater\$user, DeferredUpdates\addUpdate(), MediaWiki\Storage\DerivedPageDataUpdater\assertHasRevision(), DeferredUpdates\attemptUpdate(), User\newFromIdentity(), DeferredUpdates\POSTSEND, and DeferredUpdates\PRESEND.

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\doUpdates().

◆ doTransition()

MediaWiki\Storage\DerivedPageDataUpdater::doTransition ( $newStage )

private

Transition function for managing the life cycle of this instances.

See also: docs/pageupdater.md for documentation of the life cycle.

Parameters

string $newStage the new stage

Returns: string the previous stage

Exceptions

LogicException If a transition to the given stage is not possible in the current stage.

Definition at line 342 of file DerivedPageDataUpdater.php.

References MediaWiki\Storage\DerivedPageDataUpdater\$stage, and MediaWiki\Storage\DerivedPageDataUpdater\assertTransition().

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\doUpdates(), MediaWiki\Storage\DerivedPageDataUpdater\grabCurrentRevision(), MediaWiki\Storage\DerivedPageDataUpdater\prepareContent(), and MediaWiki\Storage\DerivedPageDataUpdater\prepareUpdate().

◆ doUpdates()

MediaWiki\Storage\DerivedPageDataUpdater::doUpdates ( )

Do standard updates after page edit, purge, or import.

Update links tables, site stats, search index, title cache, message cache, etc. Purges pages that depend on this page when appropriate. With a 10% chance, triggers pruning the recent changes table.

Note: prepareUpdate() must be called before calling this method!

MCR migration note: this replaces WikiPage::doEditUpdates.

Definition at line 1430 of file DerivedPageDataUpdater.php.

◆ getCanonicalParserOptions()

MediaWiki\Storage\DerivedPageDataUpdater::getCanonicalParserOptions ( )

Returns: ParserOptions

Definition at line 1316 of file DerivedPageDataUpdater.php.

References MediaWiki\Storage\DerivedPageDataUpdater\getRenderedRevision().

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\doParserCacheUpdate(), and MediaWiki\Storage\DerivedPageDataUpdater\getPreparedEdit().

◆ getCanonicalParserOutput()

MediaWiki\Storage\DerivedPageDataUpdater::getCanonicalParserOutput ( )

Returns: ParserOutput

Definition at line 1309 of file DerivedPageDataUpdater.php.

References MediaWiki\Storage\DerivedPageDataUpdater\getRenderedRevision().

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\doParserCacheUpdate(), MediaWiki\Storage\DerivedPageDataUpdater\getSecondaryDataUpdates(), and MediaWiki\Storage\DerivedPageDataUpdater\isCountable().

◆ getContentHandler()

MediaWiki\Storage\DerivedPageDataUpdater::getContentHandler ( $role )

private

Parameters

string $role slot role name

Returns: ContentHandler

Exceptions

MWUnknownContentModelException

Definition at line 641 of file DerivedPageDataUpdater.php.

References MediaWiki\Storage\DerivedPageDataUpdater\getContentModel().

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\doUpdates().

◆ getContentModel()

MediaWiki\Storage\DerivedPageDataUpdater::getContentModel ( $role )

private

Returns the content model of the given slot.

Parameters

string $role slot role name

Returns: string

Definition at line 632 of file DerivedPageDataUpdater.php.

References MediaWiki\Storage\DerivedPageDataUpdater\getRawSlot().

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\getContentHandler().

◆ getModifiedSlotRoles()

MediaWiki\Storage\DerivedPageDataUpdater::getModifiedSlotRoles ( )

Returns the role names of the slots modified by the new revision, not including removed roles.

Returns: string[]

Definition at line 1041 of file DerivedPageDataUpdater.php.

References MediaWiki\Storage\DerivedPageDataUpdater\getRevisionSlotsUpdate().

◆ getPageId()

MediaWiki\Storage\DerivedPageDataUpdater::getPageId ( )

private

Returns: int

Definition at line 582 of file DerivedPageDataUpdater.php.

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\doUpdates().

◆ getParentRevision()

MediaWiki\Storage\DerivedPageDataUpdater::getParentRevision ( )

private

Returns the parent revision of the new revision wrapped by this update.

If the update is a null-edit, this will return the parent of the current (and new) revision. This will return null if the revision wrapped by this update created the page. Only defined after calling prepareContent() or prepareUpdate()!

Returns: RevisionRecord|null the parent revision of the new revision, or null if the update created the page.

Definition at line 490 of file DerivedPageDataUpdater.php.

References MediaWiki\Storage\DerivedPageDataUpdater\$parentRevision, MediaWiki\Storage\DerivedPageDataUpdater\assertPrepared(), Revision\RevisionRecord\getParentId(), and MediaWiki\Storage\DerivedPageDataUpdater\useMaster().

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\doUpdates(), MediaWiki\Storage\DerivedPageDataUpdater\getRevisionSlotsUpdate(), and MediaWiki\Storage\DerivedPageDataUpdater\getSecondaryDataUpdates().

◆ getPreparedEdit()

MediaWiki\Storage\DerivedPageDataUpdater::getPreparedEdit ( )

Deprecated:: This only exists for B/C, use the getters on DerivedPageDataUpdater directly!

Returns: PreparedEdit

Definition at line 1273 of file DerivedPageDataUpdater.php.

References MediaWiki\Storage\DerivedPageDataUpdater\$slotsUpdate, MediaWiki\Storage\DerivedPageDataUpdater\assertPrepared(), MediaWiki\Storage\DerivedPageDataUpdater\getCanonicalParserOptions(), MediaWiki\Storage\RevisionSlotsUpdate\getModifiedSlot(), MediaWiki\Storage\DerivedPageDataUpdater\getRevisionSlotsUpdate(), MediaWiki\Storage\RevisionSlotsUpdate\isModifiedSlot(), and Revision\SlotRecord\MAIN.

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\doUpdates().

◆ getRawContent()

MediaWiki\Storage\DerivedPageDataUpdater::getRawContent ( $role )

Returns the content of the given slot, with no audience checks.

Exceptions

PageUpdateException If the slot is neither set for update nor inherited from the parent revision.

Parameters

string $role slot role name

Returns: Content

Definition at line 622 of file DerivedPageDataUpdater.php.

References MediaWiki\Storage\DerivedPageDataUpdater\getRawSlot().

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\doUpdates(), MediaWiki\Storage\DerivedPageDataUpdater\isCountable(), and MediaWiki\Storage\DerivedPageDataUpdater\isRedirect().

◆ getRawSlot()

MediaWiki\Storage\DerivedPageDataUpdater::getRawSlot ( $role )

Returns the slot, modified or inherited, after PST, with no audience checks applied.

Parameters

string $role slot role name

Exceptions

PageUpdateException If the slot is neither set for update nor inherited from the parent revision.

Returns: SlotRecord

Definition at line 610 of file DerivedPageDataUpdater.php.

References MediaWiki\Storage\DerivedPageDataUpdater\getSlots().

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\getContentModel(), MediaWiki\Storage\DerivedPageDataUpdater\getRawContent(), and MediaWiki\Storage\DerivedPageDataUpdater\getSecondaryDataUpdates().

◆ getRemovedSlotRoles()

MediaWiki\Storage\DerivedPageDataUpdater::getRemovedSlotRoles ( )

Returns the role names of the slots removed by the new revision.

Returns: string[]

Definition at line 1050 of file DerivedPageDataUpdater.php.

References MediaWiki\Storage\DerivedPageDataUpdater\getRevisionSlotsUpdate().

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\getSecondaryDataUpdates().

◆ getRenderedRevision()

MediaWiki\Storage\DerivedPageDataUpdater::getRenderedRevision ( )

Returns: RenderedRevision

Definition at line 918 of file DerivedPageDataUpdater.php.

References MediaWiki\Storage\DerivedPageDataUpdater\$renderedRevision, and MediaWiki\Storage\DerivedPageDataUpdater\assertPrepared().

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\getCanonicalParserOptions(), MediaWiki\Storage\DerivedPageDataUpdater\getCanonicalParserOutput(), MediaWiki\Storage\DerivedPageDataUpdater\getSecondaryDataUpdates(), and MediaWiki\Storage\DerivedPageDataUpdater\getSlotParserOutput().

◆ getRevision()

MediaWiki\Storage\DerivedPageDataUpdater::getRevision ( )

Returns the update's target revision - that is, the revision that will be the current revision after the update.

Note: Callers must treat the returned RevisionRecord's content as immutable, even if it is a MutableRevisionRecord instance. Other aspects of a MutableRevisionRecord returned from here, such as the user or the comment, may be changed, but may not be reflected in ParserOutput until after prepareUpdate() has been called.

Todo:: This is currently used by PageUpdater::makeNewRevision() to construct an unsaved MutableRevisionRecord instance. Introduce something like an UnsavedRevisionFactory service for that purpose instead!

Returns: RevisionRecord

Definition at line 910 of file DerivedPageDataUpdater.php.

References MediaWiki\Storage\DerivedPageDataUpdater\$revision, and MediaWiki\Storage\DerivedPageDataUpdater\assertPrepared().

◆ getRevisionSlotsUpdate()

MediaWiki\Storage\DerivedPageDataUpdater::getRevisionSlotsUpdate ( )

private

Returns the RevisionSlotsUpdate for this updater.

Returns: RevisionSlotsUpdate

Definition at line 1012 of file DerivedPageDataUpdater.php.

References MediaWiki\Storage\DerivedPageDataUpdater\$slotsUpdate, MediaWiki\Storage\DerivedPageDataUpdater\assertPrepared(), MediaWiki\Storage\DerivedPageDataUpdater\getParentRevision(), and MediaWiki\Storage\RevisionSlotsUpdate\newFromRevisionSlots().

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\getModifiedSlotRoles(), MediaWiki\Storage\DerivedPageDataUpdater\getPreparedEdit(), MediaWiki\Storage\DerivedPageDataUpdater\getRemovedSlotRoles(), and MediaWiki\Storage\DerivedPageDataUpdater\getTouchedSlotRoles().

◆ getSecondaryDataUpdates()

MediaWiki\Storage\DerivedPageDataUpdater::getSecondaryDataUpdates ( $recursive = false )

Parameters

bool $recursive

Returns: DeferrableUpdate[]

Definition at line 1325 of file DerivedPageDataUpdater.php.

◆ getSlotParserOutput()

MediaWiki\Storage\DerivedPageDataUpdater::getSlotParserOutput	(	$role,
		$generateHtml = `true`
	)

Parameters

string	$role
bool	$generateHtml

Returns: ParserOutput

Definition at line 1299 of file DerivedPageDataUpdater.php.

References MediaWiki\Storage\DerivedPageDataUpdater\getRenderedRevision().

◆ getSlots()

MediaWiki\Storage\DerivedPageDataUpdater::getSlots ( )

Returns the slots of the target revision, after PST.

Note: Callers must treat the returned RevisionSlots instance as immutable, even if it is a MutableRevisionSlots instance.

Returns: RevisionSlots

Definition at line 1002 of file DerivedPageDataUpdater.php.

References MediaWiki\Storage\DerivedPageDataUpdater\assertPrepared().

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\getRawSlot(), MediaWiki\Storage\DerivedPageDataUpdater\getSecondaryDataUpdates(), and MediaWiki\Storage\DerivedPageDataUpdater\isCountable().

◆ getTitle()

MediaWiki\Storage\DerivedPageDataUpdater::getTitle ( )

private

Returns: Title

Definition at line 455 of file DerivedPageDataUpdater.php.

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\doUpdates(), MediaWiki\Storage\DerivedPageDataUpdater\getSecondaryDataUpdates(), MediaWiki\Storage\DerivedPageDataUpdater\isCountable(), and MediaWiki\Storage\DerivedPageDataUpdater\prepareContent().

◆ getTouchedSlotRoles()

MediaWiki\Storage\DerivedPageDataUpdater::getTouchedSlotRoles ( )

Returns the role names of the slots touched by the new revision, including removed roles.

Returns: string[]

Definition at line 1031 of file DerivedPageDataUpdater.php.

References MediaWiki\Storage\DerivedPageDataUpdater\getRevisionSlotsUpdate().

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\doUpdates().

◆ getWikiPage()

MediaWiki\Storage\DerivedPageDataUpdater::getWikiPage ( )

private

Returns: WikiPage

Definition at line 463 of file DerivedPageDataUpdater.php.

References MediaWiki\Storage\DerivedPageDataUpdater\$wikiPage.

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\doParserCacheUpdate(), MediaWiki\Storage\DerivedPageDataUpdater\doUpdates(), MediaWiki\Storage\DerivedPageDataUpdater\getSecondaryDataUpdates(), MediaWiki\Storage\DerivedPageDataUpdater\grabCurrentRevision(), and MediaWiki\Storage\DerivedPageDataUpdater\prepareContent().

◆ grabCurrentRevision()

MediaWiki\Storage\DerivedPageDataUpdater::grabCurrentRevision ( )

Returns the revision that was the page's current revision when grabCurrentRevision() was first called.

During an edit, that revision will act as the logical parent of the new revision.

Some updates are performed based on the difference between the database state at the moment this method is first called, and the state after the edit.

See also: docs/pageupdater.md for more information on when thie method can and should be called.

Note: After prepareUpdate() was called, grabCurrentRevision() will throw an exception to avoid confusion, since the page's current revision is then the new revision after the edit, which was presumably passed to prepareUpdate() as the $revision parameter. Use getParentRevision() instead to access the revision that is the parent of the new revision.

Returns: RevisionRecord|null the page's current revision, or null if the page does not yet exist.

Definition at line 532 of file DerivedPageDataUpdater.php.

References MediaWiki\Storage\DerivedPageDataUpdater\$wikiPage, MediaWiki\Storage\DerivedPageDataUpdater\assertTransition(), MediaWiki\Storage\DerivedPageDataUpdater\doTransition(), WikiPage\getRevisionRecord(), MediaWiki\Storage\DerivedPageDataUpdater\getWikiPage(), WikiPage\isCountable(), WikiPage\isRedirect(), and WikiPage\loadPageData().

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\prepareContent().

◆ isChange()

MediaWiki\Storage\DerivedPageDataUpdater::isChange ( )

Whether the edit created, or should create, a new revision (that is, it's not a null-edit).

Warning: at present, "null-revisions" that do not change content but do have a revision record would return false after prepareContent(), but true after prepareUpdate()! This should probably be fixed.

Returns: bool

Definition at line 968 of file DerivedPageDataUpdater.php.

References MediaWiki\Storage\DerivedPageDataUpdater\assertPrepared().

◆ isContentDeleted()

MediaWiki\Storage\DerivedPageDataUpdater::isContentDeleted ( )

Whether the content is deleted and thus not visible to the public.

Returns: bool

Definition at line 592 of file DerivedPageDataUpdater.php.

References Revision\RevisionRecord\DELETED_TEXT.

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\doUpdates(), MediaWiki\Storage\DerivedPageDataUpdater\getSecondaryDataUpdates(), and MediaWiki\Storage\DerivedPageDataUpdater\isCountable().

◆ isContentPrepared()

MediaWiki\Storage\DerivedPageDataUpdater::isContentPrepared ( )

Whether prepareUpdate() or prepareContent() have been called on this instance.

Returns: bool

Definition at line 564 of file DerivedPageDataUpdater.php.

◆ isCountable()

MediaWiki\Storage\DerivedPageDataUpdater::isCountable ( )

Returns: bool

Definition at line 654 of file DerivedPageDataUpdater.php.

References $content, MediaWiki\Storage\DerivedPageDataUpdater\getCanonicalParserOutput(), MediaWiki\Storage\DerivedPageDataUpdater\getRawContent(), MediaWiki\Storage\DerivedPageDataUpdater\getSlots(), MediaWiki\Storage\DerivedPageDataUpdater\getTitle(), MediaWiki\Storage\DerivedPageDataUpdater\isContentDeleted(), and MediaWiki\Storage\DerivedPageDataUpdater\isRedirect().

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\doUpdates().

◆ isCreation()

MediaWiki\Storage\DerivedPageDataUpdater::isCreation ( )

Whether the edit creates the page.

Returns: bool

Definition at line 954 of file DerivedPageDataUpdater.php.

References MediaWiki\Storage\DerivedPageDataUpdater\assertPrepared().

◆ isRedirect()

MediaWiki\Storage\DerivedPageDataUpdater::isRedirect ( )

Returns: bool

Definition at line 699 of file DerivedPageDataUpdater.php.

References MediaWiki\Storage\DerivedPageDataUpdater\getRawContent(), and Revision\SlotRecord\MAIN.

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\isCountable().

◆ isReusableFor()

MediaWiki\Storage\DerivedPageDataUpdater::isReusableFor	(	UserIdentity	$user = `null`,
		RevisionRecord	$revision = `null`,
		RevisionSlotsUpdate	$slotsUpdate = `null`,
			$parentId = `null`
	)

Checks whether this DerivedPageDataUpdater can be re-used for running updates targeting the given revision.

Parameters

UserIdentity \| null	$user	The user creating the revision in question
RevisionRecord \| null	$revision	New revision (after save, if already saved)
RevisionSlotsUpdate \| null	$slotsUpdate	New content (before PST)
null \| int	$parentId	Parent revision of the edit (use 0 for page creation)

Returns: bool

Definition at line 377 of file DerivedPageDataUpdater.php.

References MediaWiki\Storage\DerivedPageDataUpdater\$revision, MediaWiki\Storage\DerivedPageDataUpdater\$slotsUpdate, MediaWiki\Storage\DerivedPageDataUpdater\$user, Revision\RevisionRecord\getId(), MediaWiki\User\UserIdentity\getName(), Revision\RevisionRecord\getParentId(), Revision\RevisionRecord\getSlots(), and MediaWiki\Storage\RevisionSlotsUpdate\hasSameUpdates().

◆ isUpdatePrepared()

MediaWiki\Storage\DerivedPageDataUpdater::isUpdatePrepared ( )

Whether prepareUpdate() has been called on this instance.

Note: will also return null in case of a null-edit!

Returns: bool

Definition at line 575 of file DerivedPageDataUpdater.php.

◆ pageExisted()

MediaWiki\Storage\DerivedPageDataUpdater::pageExisted ( )

Determines whether the page being edited already existed.

Only defined after calling grabCurrentRevision() or prepareContent() or prepareUpdate()!

Returns: bool

Exceptions

LogicException if called before grabCurrentRevision

Definition at line 475 of file DerivedPageDataUpdater.php.

References MediaWiki\Storage\DerivedPageDataUpdater\assertHasPageState().

◆ prepareContent()

MediaWiki\Storage\DerivedPageDataUpdater::prepareContent	(	User	$user,
		RevisionSlotsUpdate	$slotsUpdate,
			$useStash = `true`
	)

Prepare updates based on an update which has not yet been saved.

This may be used to create derived data that is needed when creating a new revision; particularly, this makes available the slots of the new revision via the getSlots() method, after applying PST and slot inheritance.

The derived data prepared for revision creation may then later be re-used by doUpdates(), without the need to re-calculate.

See also: docs/pageupdater.md for more information on when thie method can and should be called.

Note: Calling this method more than once with the same $slotsUpdate has no effect. Calling this method multiple times with different content will cause an exception.; Calling this method after prepareUpdate() has been called will cause an exception.

Parameters

User	$user	The user to act as context for pre-save transformation (PST). Type hint should be reduced to UserIdentity at some point.
RevisionSlotsUpdate	$slotsUpdate	The new content of the slots to be updated by this edit, before PST.
bool	$useStash	Whether to use stashed ParserOutput

Definition at line 743 of file DerivedPageDataUpdater.php.

◆ prepareUpdate()

MediaWiki\Storage\DerivedPageDataUpdater::prepareUpdate	(	RevisionRecord	$revision,
		array	$options = `[]`
	)

Prepare derived data updates targeting the given Revision.

Calling this method requires the given revision to be present in the database. This may be right after a new revision has been created, or when re-generating derived data e.g. in ApiPurge, RefreshLinksJob, and the refreshLinks script.

See also: docs/pageupdater.md for more information on when thie method can and should be called.

Note: Calling this method more than once with the same revision has no effect. $options are only used for the first call. Calling this method multiple times with different revisions will cause an exception.; If grabCurrentRevision() (or prepareContent()) has been called before calling this method, $revision->getParentRevision() has to refer to the revision that was the current revision at the time grabCurrentRevision() was called.

Parameters

RevisionRecord	$revision
array	$options	Array of options, following indexes are used: changed: bool, whether the revision changed the content (default true) created: bool, whether the revision created the page (default false) moved: bool, whether the page was moved (default false) restored: bool, whether the page was undeleted (default false) oldrevision: Revision object for the pre-update revision (default null) triggeringUser: The user triggering the update (UserIdentity, defaults to the user who created the revision) oldredirect: bool, null, or string 'no-change' (default null): bool: whether the page was counted as a redirect before that revision, only used in changed is true and created is false null or 'no-change': don't update the redirect status. oldcountable: bool, null, or string 'no-change' (default null): bool: whether the page was counted as an article before that revision, only used in changed is true and created is false null: if created is false, don't update the article count; if created is true, do update the article count 'no-change': don't update the article count, ever When set to null, pageState['oldCountable'] will be used instead if available.

causeAction: an arbitrary string identifying the reason for the update. See DataUpdate::getCauseAction(). (default 'unknown')
causeAgent: name of the user who caused the update. See DataUpdate::getCauseAgent(). (string, default 'unknown')
known-revision-output: a combined canonical ParserOutput for the revision, perhaps from some cache. The caller is responsible for ensuring that the ParserOutput indeed matched the $rev and $options. This mechanism is intended as a temporary stop-gap, for the time until caches have been changed to store RenderedRevision states instead of ParserOutput objects. (default: null) (since 1.33)

Definition at line 1102 of file DerivedPageDataUpdater.php.

References MediaWiki\Storage\DerivedPageDataUpdater\$options, MediaWiki\Storage\DerivedPageDataUpdater\$revision, MediaWiki\Storage\DerivedPageDataUpdater\$user, MediaWiki\Storage\DerivedPageDataUpdater\doTransition(), Revision\RevisionRecord\getId(), MediaWiki\User\UserIdentity\getName(), Revision\RevisionRecord\getParentId(), Revision\getRevisionRecord(), Revision\RevisionRecord\getSlots(), Revision\RevisionRecord\getUser(), Revision\RevisionRecord\RAW, and MediaWiki\Storage\DerivedPageDataUpdater\useMaster().

◆ revisionIsRedirect()

MediaWiki\Storage\DerivedPageDataUpdater::revisionIsRedirect ( RevisionRecord $rev )

private

Parameters

RevisionRecord $rev

Returns: bool

Definition at line 712 of file DerivedPageDataUpdater.php.

References Revision\RevisionRecord\getContent(), Revision\SlotRecord\MAIN, and Revision\RevisionRecord\RAW.

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\wasRedirect().

◆ setArticleCountMethod()

MediaWiki\Storage\DerivedPageDataUpdater::setArticleCountMethod ( $articleCountMethod )

Parameters

string $articleCountMethod "any" or "link".

See also: $wgArticleCountMethod

Definition at line 440 of file DerivedPageDataUpdater.php.

References MediaWiki\Storage\DerivedPageDataUpdater\$articleCountMethod.

Referenced by WikiPage\newDerivedDataUpdater().

◆ setLogger()

MediaWiki\Storage\DerivedPageDataUpdater::setLogger ( LoggerInterface $logger )

Definition at line 327 of file DerivedPageDataUpdater.php.

References MediaWiki\Storage\DerivedPageDataUpdater\$logger.

Referenced by WikiPage\newDerivedDataUpdater().

◆ setRcWatchCategoryMembership()

MediaWiki\Storage\DerivedPageDataUpdater::setRcWatchCategoryMembership ( $rcWatchCategoryMembership )

Parameters

bool $rcWatchCategoryMembership

See also: $wgRCWatchCategoryMembership

Definition at line 448 of file DerivedPageDataUpdater.php.

References MediaWiki\Storage\DerivedPageDataUpdater\$rcWatchCategoryMembership.

Referenced by WikiPage\newDerivedDataUpdater().

◆ useMaster()

MediaWiki\Storage\DerivedPageDataUpdater::useMaster ( )

private

Definition at line 646 of file DerivedPageDataUpdater.php.

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\getParentRevision(), MediaWiki\Storage\DerivedPageDataUpdater\prepareContent(), and MediaWiki\Storage\DerivedPageDataUpdater\prepareUpdate().

◆ wasRedirect()

MediaWiki\Storage\DerivedPageDataUpdater::wasRedirect ( )

Whether the page was a redirect before the edit.

Returns: bool

Definition at line 978 of file DerivedPageDataUpdater.php.

References MediaWiki\Storage\DerivedPageDataUpdater\assertHasPageState(), and MediaWiki\Storage\DerivedPageDataUpdater\revisionIsRedirect().

Member Data Documentation

◆ $articleCountMethod

string MediaWiki\Storage\DerivedPageDataUpdater::$articleCountMethod

private

see $wgArticleCountMethod

Definition at line 158 of file DerivedPageDataUpdater.php.

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\setArticleCountMethod().

◆ $contentHandlerFactory

IContentHandlerFactory MediaWiki\Storage\DerivedPageDataUpdater::$contentHandlerFactory

private

Initial value:

=[[,,,,],[,,,],[,,],[,,],]
    private const TRANSITIONS  
        'new' => 
            'new' => true
            'knows-current' => true
            'has-content' => true
            'has-revision' => true
        
        'knows-current' => 
            'knows-current' => true
            'has-content' => true
            'has-revision' => true
        
        'has-content' => 
            'has-content' => true
            'has-revision' => true
        
        'has-revision' => 
            'has-revision' => true
            'done' => true

Definition at line 246 of file DerivedPageDataUpdater.php.

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\__construct().

◆ $contLang

Language MediaWiki\Storage\DerivedPageDataUpdater::$contLang

private

Definition at line 128 of file DerivedPageDataUpdater.php.

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\__construct().

◆ $hookRunner

HookRunner MediaWiki\Storage\DerivedPageDataUpdater::$hookRunner

private

Definition at line 148 of file DerivedPageDataUpdater.php.

◆ $jobQueueGroup

JobQueueGroup MediaWiki\Storage\DerivedPageDataUpdater::$jobQueueGroup

private

Definition at line 133 of file DerivedPageDataUpdater.php.

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\__construct().

◆ $loadbalancerFactory

ILBFactory MediaWiki\Storage\DerivedPageDataUpdater::$loadbalancerFactory

private

Definition at line 143 of file DerivedPageDataUpdater.php.

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\__construct().

◆ $logger

LoggerInterface MediaWiki\Storage\DerivedPageDataUpdater::$logger

private

Definition at line 153 of file DerivedPageDataUpdater.php.

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\setLogger().

◆ $messageCache

MessageCache MediaWiki\Storage\DerivedPageDataUpdater::$messageCache

private

Definition at line 138 of file DerivedPageDataUpdater.php.

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\__construct().

◆ $options

MediaWiki\Storage\DerivedPageDataUpdater::$options

private

Initial value:

= [
        'changed' => true,
        
        
        'newrev' => false,
        'created' => false,
        'moved' => false,
        'restored' => false,
        'oldrevision' => null,
        'oldcountable' => null,
        'oldredirect' => null,
        'triggeringUser' => null,
        
        
        'causeAction' => null,
        'causeAgent' => null,
    ]

Stores (most of) the $options parameter of prepareUpdate().

See also: prepareUpdate()

Definition at line 169 of file DerivedPageDataUpdater.php.

Referenced by MediaWiki\Storage\DerivedPageDataUpdater\doSecondaryDataUpdates(), and MediaWiki\Storage\DerivedPageDataUpdater\prepareUpdate().

◆ $pageState

array MediaWiki\Storage\DerivedPageDataUpdater::$pageState = null

private

The state of the relevant row in page table before the edit.

This is determined by the first call to grabCurrentRevision, prepareContent, or prepareUpdate (so it is only accessible in 'knows-current' or a later stage). If pageState was not initialized when prepareUpdate() is called, prepareUpdate() will attempt to emulate the state of the page table before the edit.

Contains the following fields:

oldRevision (RevisionRecord|null): the revision that was current before the change associated with this update. Might not be set, use getParentRevision().
oldId (int|null): the id of the above revision. 0 if there is no such revision (the change was about creating a new page); null if not known (that should not happen).
oldIsRedirect (bool|null): whether the page was a redirect before the change. Lazy-loaded, can be null; use wasRedirect() instead of direct access.
oldCountable (bool|null): whether the page was countable before the change (or null if we don't have that information)

Definition at line 206 of file DerivedPageDataUpdater.php.