Collaboration diagram for MediaWiki\Storage\NameTableStore:

[legend]

Public Member Functions
	__construct (ILoadBalancer $dbLoadBalancer, WANObjectCache $cache, LoggerInterface $logger, $table, $idField, $nameField, callable $normalizationCallback=null, $dbDomain=false, callable $insertCallback=null)

	acquireId ( $name)
	Acquire the id of the given name.

	getId ( $name)
	Get the id of the given name.

	getMap ()
	Get the whole table, in no particular order as a map of ids to names.

	getName ( $id)
	Get the name of the given id.

	reloadMap ( $connFlags=0)
	Reloads the name table from the master database, and purges the WAN cache entry.

Private Member Functions
	getCacheKey ()
	Gets the cache key for names.

	getDBConnection ( $index, $flags=0)

	getFieldsToStore ( $name, $id=null)

	getTableFromCachesOrReplica ()

	loadTable (IDatabase $db)
	Gets the table from the db.

	normalizeName ( $name)

	retryStore (IDatabase $dbw, $name, $id)
	After the initial insertion got rolled back, this can be used to try the insertion again, and ensure a consistent state of the cache.

	store ( $name)
	Stores the given name in the DB, returning the ID when an insert occurs.

Private Attributes
WANObjectCache	$cache

int	$cacheTTL

bool string	$domain = false

string	$idField

null callable	$insertCallback = null

ILoadBalancer	$loadBalancer

LoggerInterface	$logger

string	$nameField

null callable	$normalizationCallback = null

string	$table

string[]	$tableCache = null

Detailed Description

Author: Addshore

Since: 1.31

Definition at line 36 of file NameTableStore.php.

Constructor & Destructor Documentation

◆ __construct()

MediaWiki\Storage\NameTableStore::__construct	(	ILoadBalancer	$dbLoadBalancer,
		WANObjectCache	$cache,
		LoggerInterface	$logger,
			$table,
			$idField,
			$nameField,
		callable	$normalizationCallback = `null`,
			$dbDomain = `false`,
		callable	$insertCallback = `null`
	)

Parameters

ILoadBalancer	$dbLoadBalancer	A load balancer for acquiring database connections
WANObjectCache	$cache	A cache manager for caching data. This can be the local wiki's default instance even if $dbDomain refers to a different wiki, since makeGlobalKey() is used to constructed a key that allows cached names from the same database to be re-used between wikis. For example, enwiki and frwiki will use the same cache keys for names from the wikidatawiki database, regardless of the cache's default key space.
LoggerInterface	$logger
string	$table
string	$idField
string	$nameField
callable \| null	$normalizationCallback	Normalization to be applied to names before being saved or queried. This should be a callback that accepts and returns a single string.
bool \| string	$dbDomain	Database domain ID. Use false for the local database domain.
callable \| null	$insertCallback	Callback to change insert fields accordingly. This parameter was introduced in 1.32

Definition at line 85 of file NameTableStore.php.

References MediaWiki\Storage\NameTableStore\$cache, MediaWiki\Storage\NameTableStore\$idField, MediaWiki\Storage\NameTableStore\$insertCallback, MediaWiki\Storage\NameTableStore\$logger, MediaWiki\Storage\NameTableStore\$nameField, MediaWiki\Storage\NameTableStore\$normalizationCallback, and MediaWiki\Storage\NameTableStore\$table.

Member Function Documentation

◆ acquireId()

MediaWiki\Storage\NameTableStore::acquireId ( $name )

Acquire the id of the given name.

This creates a row in the table if it doesn't already exist.

Note: If called within an atomic section, there is a chance for the acquired ID to be lost on rollback. A best effort is made to re-insert the mapping in this case, and consistency of the cache with the database table is ensured by re-loading the map after a failed atomic section. However, there is no guarantee that an ID returned by this method is valid outside the transaction in which it was produced. This means that calling code should not retain the return value beyond the scope of a transaction, but rather call acquireId() again after the transaction is complete. In some rare cases, this may produce an ID different from the first call.

Parameters

string $name

Exceptions

NameTableAccessException

Returns: int

Definition at line 162 of file NameTableStore.php.

References MediaWiki\Storage\NameTableStore\$table, DB_MASTER, MediaWiki\Storage\NameTableStore\getCacheKey(), MediaWiki\Storage\NameTableStore\getDBConnection(), MediaWiki\Storage\NameTableStore\getTableFromCachesOrReplica(), MediaWiki\Storage\NameTableStore\normalizeName(), MediaWiki\Storage\NameTableStore\reloadMap(), and MediaWiki\Storage\NameTableStore\store().

◆ getCacheKey()

MediaWiki\Storage\NameTableStore::getCacheKey ( )

private

Gets the cache key for names.

The cache key is constructed based on the wiki ID passed to the constructor, and allows sharing of name tables cached for a specific database between wikis.

Returns: string

Definition at line 126 of file NameTableStore.php.

Referenced by MediaWiki\Storage\NameTableStore\acquireId(), MediaWiki\Storage\NameTableStore\getName(), MediaWiki\Storage\NameTableStore\getTableFromCachesOrReplica(), and MediaWiki\Storage\NameTableStore\reloadMap().

◆ getDBConnection()

MediaWiki\Storage\NameTableStore::getDBConnection	(	$index,
		$flags = `0`
	)

private

Parameters

int	$index	A database index, like DB_MASTER or DB_REPLICA
int	$flags	Database connection flags

Returns: IDatabase

Definition at line 114 of file NameTableStore.php.

Referenced by MediaWiki\Storage\NameTableStore\acquireId(), MediaWiki\Storage\NameTableStore\getName(), MediaWiki\Storage\NameTableStore\getTableFromCachesOrReplica(), MediaWiki\Storage\NameTableStore\reloadMap(), and MediaWiki\Storage\NameTableStore\store().

◆ getFieldsToStore()

MediaWiki\Storage\NameTableStore::getFieldsToStore	(	$name,
		$id = `null`
	)

private

Parameters

string	$name
int \| null	$id

Returns: array

Definition at line 514 of file NameTableStore.php.

References MediaWiki\Storage\NameTableStore\$idField, and MediaWiki\Storage\NameTableStore\$nameField.

Referenced by MediaWiki\Storage\NameTableStore\retryStore(), and MediaWiki\Storage\NameTableStore\store().

◆ getId()

MediaWiki\Storage\NameTableStore::getId ( $name )

Get the id of the given name.

If the name doesn't exist this will throw. This should be used in cases where we believe the name already exists or want to check for existence.

Parameters

string $name

Exceptions

NameTableAccessException The name does not exist

Returns: int Id

Definition at line 252 of file NameTableStore.php.

References MediaWiki\Storage\NameTableStore\$table, MediaWiki\Storage\NameTableStore\getTableFromCachesOrReplica(), MediaWiki\Storage\NameTableAccessException\newFromDetails(), and MediaWiki\Storage\NameTableStore\normalizeName().

◆ getMap()

MediaWiki\Storage\NameTableStore::getMap ( )

Get the whole table, in no particular order as a map of ids to names.

This method could be subject to DB or cache lag.

Returns: string[] keys are the name ids, values are the names themselves Example: [ 1 => 'foo', 3 => 'bar' ]

Definition at line 337 of file NameTableStore.php.

References MediaWiki\Storage\NameTableStore\getTableFromCachesOrReplica().

◆ getName()

MediaWiki\Storage\NameTableStore::getName ( $id )

Get the name of the given id.

If the id doesn't exist this will throw. This should be used in cases where we believe the id already exists.

Note: Calls to this method will result in a master select for non existing IDs.

Parameters

int $id

Exceptions

NameTableAccessException The id does not exist

Returns: string name

Definition at line 277 of file NameTableStore.php.

References $source, MediaWiki\Storage\NameTableStore\$table, DB_MASTER, DB_REPLICA, MediaWiki\Storage\NameTableStore\getCacheKey(), MediaWiki\Storage\NameTableStore\getDBConnection(), MediaWiki\Storage\NameTableStore\getTableFromCachesOrReplica(), MediaWiki\Storage\NameTableStore\loadTable(), and MediaWiki\Storage\NameTableAccessException\newFromDetails().

◆ getTableFromCachesOrReplica()

MediaWiki\Storage\NameTableStore::getTableFromCachesOrReplica ( )

private

Returns: string[]

Definition at line 344 of file NameTableStore.php.

References $dbr, MediaWiki\Storage\NameTableStore\$table, MediaWiki\Storage\NameTableStore\$tableCache, DB_REPLICA, MediaWiki\Storage\NameTableStore\getCacheKey(), MediaWiki\Storage\NameTableStore\getDBConnection(), and MediaWiki\Storage\NameTableStore\loadTable().

Referenced by MediaWiki\Storage\NameTableStore\acquireId(), MediaWiki\Storage\NameTableStore\getId(), MediaWiki\Storage\NameTableStore\getMap(), and MediaWiki\Storage\NameTableStore\getName().

◆ loadTable()

MediaWiki\Storage\NameTableStore::loadTable ( IDatabase $db )

private

Gets the table from the db.

Parameters

IDatabase $db

Returns: string[]

Definition at line 371 of file NameTableStore.php.

References Wikimedia\Rdbms\IDatabase\select().

Referenced by MediaWiki\Storage\NameTableStore\getName(), MediaWiki\Storage\NameTableStore\getTableFromCachesOrReplica(), and MediaWiki\Storage\NameTableStore\reloadMap().

◆ normalizeName()

MediaWiki\Storage\NameTableStore::normalizeName ( $name )

private

Parameters

string $name

Returns: string

Definition at line 138 of file NameTableStore.php.

Referenced by MediaWiki\Storage\NameTableStore\acquireId(), and MediaWiki\Storage\NameTableStore\getId().

◆ reloadMap()

MediaWiki\Storage\NameTableStore::reloadMap ( $connFlags = 0 )

Reloads the name table from the master database, and purges the WAN cache entry.

Note: This should only be called in situations where the local cache has been detected to be out of sync with the database. There should be no reason to call this method from outside the NameTabelStore during normal operation. This method may however be useful in unit tests.

Parameters

int $connFlags ILoadBalancer::CONN_XXX flags. Optional.

Returns: string[] The freshly reloaded name map

Definition at line 226 of file NameTableStore.php.

References MediaWiki\Storage\NameTableStore\$tableCache, DB_MASTER, MediaWiki\Storage\NameTableStore\getCacheKey(), MediaWiki\Storage\NameTableStore\getDBConnection(), and MediaWiki\Storage\NameTableStore\loadTable().

Referenced by MediaWiki\Storage\NameTableStore\acquireId(), and MediaWiki\Storage\NameTableStore\retryStore().

◆ retryStore()

MediaWiki\Storage\NameTableStore::retryStore	(	IDatabase	$dbw,
			$name,
			$id
	)

private

After the initial insertion got rolled back, this can be used to try the insertion again, and ensure a consistent state of the cache.

Parameters

IDatabase	$dbw
string	$name
int	$id

Definition at line 451 of file NameTableStore.php.

References Wikimedia\Rdbms\IDatabase\doAtomicSection(), MediaWiki\Storage\NameTableStore\getFieldsToStore(), Wikimedia\Rdbms\IDatabase\insert(), Wikimedia\Rdbms\IDatabase\onAtomicSectionCancel(), and MediaWiki\Storage\NameTableStore\reloadMap().

Referenced by MediaWiki\Storage\NameTableStore\store().

◆ store()

MediaWiki\Storage\NameTableStore::store ( $name )

private

Stores the given name in the DB, returning the ID when an insert occurs.

Parameters

string $name

Returns: int|null int if we know the ID, null if we don't

Definition at line 397 of file NameTableStore.php.

References DB_MASTER, MediaWiki\Storage\NameTableStore\getDBConnection(), MediaWiki\Storage\NameTableStore\getFieldsToStore(), and MediaWiki\Storage\NameTableStore\retryStore().

Referenced by MediaWiki\Storage\NameTableStore\acquireId().

Member Data Documentation

◆ $cache

WANObjectCache MediaWiki\Storage\NameTableStore::$cache

private

Definition at line 42 of file NameTableStore.php.

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

◆ $cacheTTL

int MediaWiki\Storage\NameTableStore::$cacheTTL

private

Definition at line 54 of file NameTableStore.php.

◆ $domain

bool string MediaWiki\Storage\NameTableStore::$domain = false

private

Definition at line 51 of file NameTableStore.php.

◆ $idField

string MediaWiki\Storage\NameTableStore::$idField

private

Definition at line 59 of file NameTableStore.php.

Referenced by MediaWiki\Storage\NameTableStore\__construct(), and MediaWiki\Storage\NameTableStore\getFieldsToStore().

◆ $insertCallback

null callable MediaWiki\Storage\NameTableStore::$insertCallback = null

private

Definition at line 65 of file NameTableStore.php.

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

◆ $loadBalancer

ILoadBalancer MediaWiki\Storage\NameTableStore::$loadBalancer

private

Definition at line 39 of file NameTableStore.php.

◆ $logger

LoggerInterface MediaWiki\Storage\NameTableStore::$logger

private

Definition at line 45 of file NameTableStore.php.

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

◆ $nameField

string MediaWiki\Storage\NameTableStore::$nameField

private

Definition at line 61 of file NameTableStore.php.

Referenced by MediaWiki\Storage\NameTableStore\__construct(), and MediaWiki\Storage\NameTableStore\getFieldsToStore().

◆ $normalizationCallback

null callable MediaWiki\Storage\NameTableStore::$normalizationCallback = null

private

Definition at line 63 of file NameTableStore.php.

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

◆ $table

string MediaWiki\Storage\NameTableStore::$table

private

Definition at line 57 of file NameTableStore.php.

Referenced by MediaWiki\Storage\NameTableStore\__construct(), MediaWiki\Storage\NameTableStore\acquireId(), MediaWiki\Storage\NameTableStore\getId(), MediaWiki\Storage\NameTableStore\getName(), and MediaWiki\Storage\NameTableStore\getTableFromCachesOrReplica().

◆ $tableCache

string [] MediaWiki\Storage\NameTableStore::$tableCache = null

private

Definition at line 48 of file NameTableStore.php.

Referenced by MediaWiki\Storage\NameTableStore\getTableFromCachesOrReplica(), and MediaWiki\Storage\NameTableStore\reloadMap().

The documentation for this class was generated from the following file:

includes/Storage/NameTableStore.php

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ __construct()

Member Function Documentation

◆ acquireId()

◆ getCacheKey()

◆ getDBConnection()

◆ getFieldsToStore()

◆ getId()

◆ getMap()

◆ getName()

◆ getTableFromCachesOrReplica()

◆ loadTable()

◆ normalizeName()

◆ reloadMap()

◆ retryStore()

◆ store()

Member Data Documentation

◆ $cache

◆ $cacheTTL

◆ $domain

◆ $idField

◆ $insertCallback

◆ $loadBalancer

◆ $logger

◆ $nameField

◆ $normalizationCallback

◆ $table

◆ $tableCache