DatabaseUpdater Class Reference

Class for handling database updates. More...

Inheritance diagram for DatabaseUpdater:

Collaboration diagram for DatabaseUpdater:

List of all members.

Public Member Functions
	addExtensionField ($tableName, $columnName, $sqlPath)
	addExtensionIndex ($tableName, $indexName, $sqlPath)
	addExtensionTable ($tableName, $sqlPath)
	Convenience wrapper for addExtensionUpdate() when adding a new table (which is the most common usage of updaters in an extension)
	addExtensionUpdate (Array $update)
	Add a new update coming from an extension.
	addPostDatabaseUpdateMaintenance ($class)
	Add a maintenance script to be run after the database updates are complete.
	doUpdates ($what=array( 'core', 'extensions', 'purge', 'stats'))
	Do all the updates.
	dropExtensionField ($tableName, $columnName, $sqlPath)
	dropExtensionTable ($tableName, $sqlPath)
	dropTable ($table, $patch=false, $fullpath=false)
	If the specified table exists, drop it, or execute the patch if one is provided.
	getDB ()
	Get a database connection to run updates.
	getPostDatabaseUpdateMaintenance ()
	insertUpdateRow ($key, $val=null)
	Helper function: Add a key to the updatelog table Obviously, only use this for updates that occur after the updatelog table was created!
	modifyField ($table, $field, $patch, $fullpath=false)
	Modify an existing field.
	output ($str)
	Output some text.
	tableExists ($tableName)
	updateRowExists ($key)
	Helper function: check if the given key is present in the updatelog table.
Static Public Member Functions
static	newForDB (&$db, $shared=false, $maintenance=null)
Protected Member Functions
	__construct (DatabaseBase &$db, $shared, Maintenance $maintenance=null)
	Constructor.
	addField ($table, $field, $patch, $fullpath=false)
	Add a new field to an existing table.
	addIndex ($table, $index, $patch, $fullpath=false)
	Add a new index to an existing table.
	addTable ($name, $patch, $fullpath=false)
	Add a new table to the database.
	applyPatch ($path, $isFullPath=false, $msg=null)
	Applies a SQL patch.
	canUseNewUpdatelog ()
	Updatelog was changed in 1.17 to have a ul_value column so we can record more information about what kind of updates we've done (that's what this class does).
	checkStats ()
	Check the site_stats table is not properly populated.
	doActiveUsersInit ()
	Sets the number of active users in the site_stats table.
	doCollationUpdate ()
	Update CategoryLinks collation.
	doLogSearchPopulation ()
	Migrate log params to new table and index for searching.
	doLogUsertextPopulation ()
	Populates the log_user_text field in the logging table.
	doMigrateUserOptions ()
	Migrates user options from the user table blob to user_properties.
	doUpdateTranscacheField ()
	Updates the timestamps in the transcache table.
	dropField ($table, $field, $patch, $fullpath=false)
	Drop a field from an existing table.
	dropIndex ($table, $index, $patch, $fullpath=false)
	Drop an index from an existing table.
	getCoreUpdateList ()
	Get an array of updates to perform on the database.
	getExtensionUpdates ()
	Get the list of extension-defined updates.
	getOldGlobalUpdates ()
	Before 1.17, we used to handle updates via stuff like $wgExtNewTables/Fields/Indexes.
	purgeCache ()
	Purge the objectcache table.
	rebuildLocalisationCache ()
	Rebuilds the localisation cache.
	setAppliedUpdates ($version, $updates=array())
Protected Attributes
DatabaseBase	$db
	Handle to the database subclass.
array	$extensionUpdates = array()
	List of extension-provided database updates.
	$postDatabaseUpdateMaintenance
	$shared = false
array	$updates = array()
	Array of updates to perform on the database.
Private Member Functions
	initOldGlobals ()
	Initialize all of the old globals.
	loadExtensions ()
	Loads LocalSettings.php, if needed, and initialises everything needed for LoadExtensionSchemaUpdates hook.
	runUpdates (array $updates, $passSelf)
	Helper function for doUpdates()

---

Detailed Description

Class for handling database updates.

Roughly based off of updaters.inc, with a few improvements :)

Since:

1.17

Definition at line 33 of file DatabaseUpdater.php.

---

Constructor & Destructor Documentation

DatabaseUpdater::__construct	(	DatabaseBase &$	db,
		$	shared,
		Maintenance $	maintenance = null
	)		[protected]

Constructor.

Parameters:

$db	DatabaseBase object to perform updates on
$shared	bool Whether to perform updates on shared tables
$maintenance	Maintenance Maintenance object which created us

Definition at line 69 of file DatabaseUpdater.php.

---

Member Function Documentation

DatabaseUpdater::addExtensionField	(	$	tableName,
		$	columnName,
		$	sqlPath
	)

Since:

1.19

Parameters:

$tableName	string
$columnName	string
$sqlPath	string

Definition at line 213 of file DatabaseUpdater.php.

DatabaseUpdater::addExtensionIndex	(	$	tableName,
		$	indexName,
		$	sqlPath
	)

Since:

1.19

Parameters:

$tableName	string
$indexName	string
$sqlPath	string

Definition at line 201 of file DatabaseUpdater.php.

DatabaseUpdater::addExtensionTable	(	$	tableName,
		$	sqlPath
	)

Convenience wrapper for addExtensionUpdate() when adding a new table (which is the most common usage of updaters in an extension)

Since:

1.18

Parameters:

$tableName	String Name of table to create
$sqlPath	String Full path to the schema file

Definition at line 190 of file DatabaseUpdater.php.

DatabaseUpdater::addExtensionUpdate

(

Array $

update

)

Add a new update coming from an extension.

This should be called by extensions while executing the LoadExtensionSchemaUpdates hook.

Since:

1.17

Parameters:

$update

Array: the update to run. Format is the following: first item is the callback function, it also can be a simple string with the name of a function in this class, following elements are parameters to the function. Note that callback functions will receive this object as first parameter.

Definition at line 177 of file DatabaseUpdater.php.

DatabaseUpdater::addField	(	$	table,
		$	field,
		$	patch,
		$	fullpath = false
	)		[protected]

Add a new field to an existing table.

Parameters:

$table	String Name of the table to modify
$field	String Name of the new field
$patch	String Path to the patch file
$fullpath	Boolean Whether to treat $patch path as a relative or not

Definition at line 500 of file DatabaseUpdater.php.

DatabaseUpdater::addIndex	(	$	table,
		$	index,
		$	patch,
		$	fullpath = false
	)		[protected]

Add a new index to an existing table.

Parameters:

$table	String Name of the table to modify
$index	String Name of the new index
$patch	String Path to the patch file
$fullpath	Boolean Whether to treat $patch path as a relative or not

Definition at line 517 of file DatabaseUpdater.php.

DatabaseUpdater::addPostDatabaseUpdateMaintenance

(

$

class

)

Add a maintenance script to be run after the database updates are complete.

Since:

1.19

Parameters:

$class

string Name of a Maintenance subclass

Definition at line 258 of file DatabaseUpdater.php.

DatabaseUpdater::addTable	(	$	name,
		$	patch,
		$	fullpath = false
	)		[protected]

Add a new table to the database.

Parameters:

$name	String Name of the new table
$patch	String Path to the patch file
$fullpath	Boolean Whether to treat $patch path as a relative or not

Definition at line 485 of file DatabaseUpdater.php.

DatabaseUpdater::applyPatch	(	$	path,
		$	isFullPath = false,
		$	msg = null
	)		[protected]

Applies a SQL patch.

Parameters:

$path	String Path to the patch file
$isFullPath	Boolean Whether to treat $path as a relative or not
$msg	String Description of the patch

Definition at line 465 of file DatabaseUpdater.php.

Referenced by PostgresUpdater\addInterwikiType(), PostgresUpdater\addPgExtIndex(), MysqlUpdater\checkBin(), PostgresUpdater\checkIwlPrefix(), PostgresUpdater\checkPageDeletedTrigger(), PostgresUpdater\checkRevUserFkey(), PostgresUpdater\convertArchive2(), MysqlUpdater\doBacklinkingIndicesUpdate(), MysqlUpdater\doCategorylinksIndicesUpdate(), MysqlUpdater\doClFieldsUpdate(), MysqlUpdater\doFilearchiveIndicesUpdate(), MysqlUpdater\doFixAncientImagelinks(), MysqlUpdater\doIndexUpdate(), MysqlUpdater\doInterwikiUpdate(), MysqlUpdater\doLangLinksLengthUpdate(), MysqlUpdater\doMaybeProfilingMemoryUpdate(), MysqlUpdater\doPagelinksUpdate(), OracleUpdater\doRemoveNotNullEmptyDefaults2(), MysqlUpdater\doRestrictionsUpdate(), MysqlUpdater\doTemplatelinksUpdate(), MysqlUpdater\doUniquePlTlIl(), MysqlUpdater\doUpdateMimeMinorField(), MysqlUpdater\doUserGroupsUpdate(), MysqlUpdater\doUserNewTalkTimestampNotNull(), MysqlUpdater\doUserUniqueUpdate(), MysqlUpdater\doWatchlistNull(), MysqlUpdater\renameEuWikiId(), PostgresUpdater\renameTable(), SqliteUpdater\sqliteInitialIndexes(), SqliteUpdater\sqliteSetupSearchindex(), and PostgresUpdater\tsearchFixes().

DatabaseUpdater::canUseNewUpdatelog

(

)

[protected]

Updatelog was changed in 1.17 to have a ul_value column so we can record more information about what kind of updates we've done (that's what this class does).

Pre-1.17 wikis won't have this column, and really old wikis might not even have updatelog at all

Returns:

boolean

Definition at line 394 of file DatabaseUpdater.php.

DatabaseUpdater::checkStats

(

)

[protected]

Check the site_stats table is not properly populated.

Definition at line 621 of file DatabaseUpdater.php.

DatabaseUpdater::doActiveUsersInit

(

)

[protected]

Sets the number of active users in the site_stats table.

Definition at line 640 of file DatabaseUpdater.php.

DatabaseUpdater::doCollationUpdate

(

)

[protected]

Update CategoryLinks collation.

Definition at line 702 of file DatabaseUpdater.php.

DatabaseUpdater::doLogSearchPopulation

(

)

[protected]

Migrate log params to new table and index for searching.

Definition at line 674 of file DatabaseUpdater.php.

DatabaseUpdater::doLogUsertextPopulation

(

)

[protected]

Populates the log_user_text field in the logging table.

Definition at line 658 of file DatabaseUpdater.php.

DatabaseUpdater::doMigrateUserOptions

(

)

[protected]

Migrates user options from the user table blob to user_properties.

Definition at line 723 of file DatabaseUpdater.php.

DatabaseUpdater::doUpdates

(

$

what = array( 'core', 'extensions', 'purge', 'stats' )

)

Do all the updates.

Parameters:

$what

Array: what updates to perform

Reimplemented in OracleUpdater.

Definition at line 285 of file DatabaseUpdater.php.

DatabaseUpdater::doUpdateTranscacheField

(

)

[protected]

Updates the timestamps in the transcache table.

Definition at line 690 of file DatabaseUpdater.php.

DatabaseUpdater::dropExtensionField	(	$	tableName,
		$	columnName,
		$	sqlPath
	)

Since:

1.20

Parameters:

$tableName	string
$columnName	string
$sqlPath	string

Definition at line 225 of file DatabaseUpdater.php.

DatabaseUpdater::dropExtensionTable	(	$	tableName,
		$	sqlPath
	)

Since:

1.20

Parameters:

$tableName	string
$sqlPath	string

Definition at line 236 of file DatabaseUpdater.php.

DatabaseUpdater::dropField	(	$	table,
		$	field,
		$	patch,
		$	fullpath = false
	)		[protected]

Drop a field from an existing table.

Parameters:

$table	String Name of the table to modify
$field	String Name of the old field
$patch	String Path to the patch file
$fullpath	Boolean Whether to treat $patch path as a relative or not

Definition at line 533 of file DatabaseUpdater.php.

DatabaseUpdater::dropIndex	(	$	table,
		$	index,
		$	patch,
		$	fullpath = false
	)		[protected]

Drop an index from an existing table.

Parameters:

$table	String: Name of the table to modify
$index	String: Name of the old index
$patch	String: Path to the patch file
$fullpath	Boolean: Whether to treat $patch path as a relative or not

Reimplemented in PostgresUpdater.

Definition at line 549 of file DatabaseUpdater.php.

DatabaseUpdater::dropTable	(	$	table,
		$	patch = false,
		$	fullpath = false
	)

If the specified table exists, drop it, or execute the patch if one is provided.

Public

Since:

1.20

Parameters:

$table	string
$patch	string|false
$fullpath	bool

Definition at line 567 of file DatabaseUpdater.php.

DatabaseUpdater::getCoreUpdateList

(

)

[abstract, protected]

Get an array of updates to perform on the database.

Should return a multi-dimensional array. The main key is the MediaWiki version (1.12, 1.13...) with the values being arrays of updates, identical to how updaters.inc did it (for now)

Returns:

Array

Reimplemented in PostgresUpdater, OracleUpdater, Ibm_db2Updater, MysqlUpdater, and SqliteUpdater.

DatabaseUpdater::getDB

(

)

Get a database connection to run updates.

Returns:

DatabaseBase

Definition at line 143 of file DatabaseUpdater.php.

DatabaseUpdater::getExtensionUpdates

(

)

[protected]

Get the list of extension-defined updates.

Returns:

Array

Definition at line 267 of file DatabaseUpdater.php.

DatabaseUpdater::getOldGlobalUpdates

(

)

[protected]

Before 1.17, we used to handle updates via stuff like $wgExtNewTables/Fields/Indexes.

This is nasty :) We refactored a lot of this in 1.17 but we want to remain back-compatible for a while. So load up these old global-based things into our update list.

Returns:

array

Reimplemented in PostgresUpdater.

Definition at line 407 of file DatabaseUpdater.php.

DatabaseUpdater::getPostDatabaseUpdateMaintenance

(

)

Since:

1.17

Returns:

array

Definition at line 276 of file DatabaseUpdater.php.

DatabaseUpdater::initOldGlobals

(

)

[private]

Initialize all of the old globals.

One day this should all become something much nicer

Definition at line 88 of file DatabaseUpdater.php.

DatabaseUpdater::insertUpdateRow	(	$	key,
		$	val = null
	)

Helper function: Add a key to the updatelog table Obviously, only use this for updates that occur after the updatelog table was created!

Parameters:

$key	String Name of key to insert
$val	String [optional] value to insert along with the key

Definition at line 376 of file DatabaseUpdater.php.

DatabaseUpdater::loadExtensions

(

)

[private]

Loads LocalSettings.php, if needed, and initialises everything needed for LoadExtensionSchemaUpdates hook.

Definition at line 105 of file DatabaseUpdater.php.

DatabaseUpdater::modifyField	(	$	table,
		$	field,
		$	patch,
		$	fullpath = false
	)

Modify an existing field.

Parameters:

$table	String: name of the table to which the field belongs
$field	String: name of the field to modify
$patch	String: path to the patch file
$fullpath	Boolean: whether to treat $patch path as a relative or not

Definition at line 593 of file DatabaseUpdater.php.

static DatabaseUpdater::newForDB	(	&$	db,
		$	shared = false,
		$	maintenance = null
	)		[static]

Exceptions:

MWException

Parameters:

DatabaseBase	$db
bool	$shared
null	$maintenance

Returns:

DatabaseUpdater

Definition at line 128 of file DatabaseUpdater.php.

Referenced by DatabaseSqliteTest\prepareDB().

DatabaseUpdater::output

(

$

str

)

Output some text.

If we're running from web, escape the text first.

Parameters:

$str	String: Text to output

Definition at line 152 of file DatabaseUpdater.php.

Referenced by PostgresUpdater\addPgExtIndex(), PostgresUpdater\addPgField(), PostgresUpdater\addPgIndex(), PostgresUpdater\addSequence(), PostgresUpdater\changeField(), PostgresUpdater\changeFkeyDeferrable(), PostgresUpdater\changeNullableField(), MysqlUpdater\checkBin(), PostgresUpdater\checkIndex(), PostgresUpdater\checkOiDeleted(), PostgresUpdater\checkOiNameConstraint(), PostgresUpdater\checkPageDeletedTrigger(), PostgresUpdater\checkRevUserFkey(), PostgresUpdater\convertArchive2(), MysqlUpdater\doCategoryPopulation(), MysqlUpdater\doClFieldsUpdate(), MysqlUpdater\doFixAncientImagelinks(), MysqlUpdater\doIndexUpdate(), MysqlUpdater\doInterwikiUpdate(), MysqlUpdater\doLangLinksLengthUpdate(), MysqlUpdater\doMaybeProfilingMemoryUpdate(), MysqlUpdater\doNamespaceSize(), MysqlUpdater\doPagelinksUpdate(), MysqlUpdater\doPageRandomUpdate(), MysqlUpdater\doPopulateParentId(), MysqlUpdater\doRestrictionsUpdate(), MysqlUpdater\doSchemaRestructuring(), MysqlUpdater\doTemplatelinksUpdate(), MysqlUpdater\doUniquePlTlIl(), MysqlUpdater\doUpdateMimeMinorField(), MysqlUpdater\doUserGroupsUpdate(), MysqlUpdater\doUserNewTalkTimestampNotNull(), MysqlUpdater\doUserUniqueUpdate(), MysqlUpdater\doWatchlistNull(), MysqlUpdater\doWatchlistUpdate(), PostgresUpdater\dropIndex(), MysqlUpdater\indexHasField(), MysqlUpdater\renameEuWikiId(), PostgresUpdater\renameIndex(), PostgresUpdater\renameSequence(), PostgresUpdater\renameTable(), PostgresUpdater\setDefault(), SqliteUpdater\sqliteInitialIndexes(), and SqliteUpdater\sqliteSetupSearchindex().

DatabaseUpdater::purgeCache

(

)

[protected]

Purge the objectcache table.

Reimplemented in OracleUpdater.

Definition at line 610 of file DatabaseUpdater.php.

DatabaseUpdater::rebuildLocalisationCache

(

)

[protected]

Rebuilds the localisation cache.

Definition at line 732 of file DatabaseUpdater.php.

DatabaseUpdater::runUpdates	(	array $	updates,
		$	passSelf
	)		[private]

Helper function for doUpdates()

Parameters:

$updates	Array of updates to run
$passSelf	Boolean: whether to pass this object we calling external functions

Definition at line 321 of file DatabaseUpdater.php.

DatabaseUpdater::setAppliedUpdates	(	$	version,
		$	updates = array()
	)		[protected]

Parameters:

$version
$updates	array

Definition at line 339 of file DatabaseUpdater.php.

DatabaseUpdater::tableExists

(

$

tableName

)

Since:

1.20

Parameters:

$tableName

string

Returns:

bool

Definition at line 247 of file DatabaseUpdater.php.

DatabaseUpdater::updateRowExists

(

$

key

)

Helper function: check if the given key is present in the updatelog table.

Obviously, only use this for updates that occur after the updatelog table was created!

Parameters:

$key	String Name of the key to check for

Returns:

bool

Definition at line 359 of file DatabaseUpdater.php.

Referenced by MysqlUpdater\doCategoryPopulation(), MysqlUpdater\doClFieldsUpdate(), MysqlUpdater\doPopulateParentId(), MysqlUpdater\doUpdateMimeMinorField(), SqliteUpdater\sqliteInitialIndexes(), and SqliteUpdater\sqliteSetupSearchindex().

---

Member Data Documentation

DatabaseBase DatabaseUpdater::$db [protected]

Handle to the database subclass.

Reimplemented in OracleUpdater, and PostgresUpdater.

Definition at line 50 of file DatabaseUpdater.php.

array DatabaseUpdater::$extensionUpdates = array() [protected]

List of extension-provided database updates.

Definition at line 44 of file DatabaseUpdater.php.

DatabaseUpdater::$postDatabaseUpdateMaintenance [protected]

Initial value:

 array(
                'DeleteDefaultMessages',
                'PopulateRevisionLength',
                'PopulateRevisionSha1',
                'PopulateImageSha1',
                'FixExtLinksProtocolRelative',
        )

Definition at line 54 of file DatabaseUpdater.php.

DatabaseUpdater::$shared = false [protected]

Definition at line 52 of file DatabaseUpdater.php.

array DatabaseUpdater::$updates = array() [protected]

Array of updates to perform on the database.

Definition at line 39 of file DatabaseUpdater.php.

Referenced by PostgresUpdater\getOldGlobalUpdates().

---

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

• includes/installer/DatabaseUpdater.php