Class for setting up the MediaWiki database using Postgres. More...

Inheritance diagram for PostgresInstaller:

Collaboration diagram for PostgresInstaller:

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Public Member Functions
	commitChanges ()

	createTables ()
	Create database tables from scratch.

	getConnectForm ()
	Get HTML for a web form that configures this database.

	getConnection ()
	Connect to the database using the administrative user/password currently defined in the session.

	getGlobalDefaults ()
	Get a name=>value map of MW configuration globals for the default values.

	getLocalSettings ()
	Get the DBMS-specific options for LocalSettings.php generation.

	getName ()
	Return the internal name, e.g.

	getSettingsForm ()
	Get HTML for a web form that retrieves settings used for installation.

	isCompiled ()

	openConnection ()
	Open a connection to the database using the administrative user/password currently defined in the session, without any caching.

	openConnectionToAnyDB ( $user, $password)

	preInstall ()
	Allow DB installers a chance to make last-minute changes before installation occurs.

	preUpgrade ()
	Allow DB installers a chance to make checks before upgrade.

	setupDatabase ()
	Create the database and return a Status object indicating success or failure.

	setupPLpgSQL ()

	setupSchema ()

	setupUser ()

	submitConnectForm ()
	Set variables based on the request array, assuming it was submitted via the form returned by getConnectForm().

	submitSettingsForm ()
	Set variables based on the request array, assuming it was submitted via the form return by getSettingsForm().

Public Member Functions inherited from DatabaseInstaller
	__construct ( $parent)
	Construct and initialise parent.

	checkPrerequisites ()
	Checks for installation prerequisites other than those checked by isCompiled()

	createExtensionTables ()
	Create the tables for each extension the user enabled.

	doUpgrade ()
	Perform database upgrades.

	enableLB ()
	Set up LBFactory so that wfGetDB() etc.

	getCheckBox ( $var, $label, $attribs=[], $helpData="")
	Get a labelled checkbox to configure a local boolean variable.

	getGlobalNames ()
	Get an array of MW configuration globals that will be configured by this class.

	getInstallUserBox ()
	Get a standard install-user fieldset.

	getInternalDefaults ()
	Get a name=>value map of internal variables used during installation.

	getPasswordBox ( $var, $label, $attribs=[], $helpData="")
	Get a labelled password box to configure a local variable.

	getRadioSet ( $params)
	Get a set of labelled radio buttons.

	getReadableName ()
	Get the internationalised name for this DBMS.

	getSchemaPath ( $db)
	Return a path to the DBMS-specific schema file, otherwise default to tables.sql.

	getSchemaVars ()
	Override this to provide DBMS-specific schema variables, to be substituted into tables.sql and other schema files.

	getTextBox ( $var, $label, $attribs=[], $helpData="")
	Get a labelled text box to configure a local variable.

	getUpdateKeysPath ( $db)
	Return a path to the DBMS-specific update key file, otherwise default to update-keys.sql.

	getVar ( $var, $default=null)
	Get a variable, taking local defaults into account.

	getWebUserBox ( $noCreateMsg=false)
	Get a standard web-user fieldset.

	insertUpdateKeys ()
	Insert update keys into table to prevent running unneded updates.

	needsUpgrade ()
	Determine whether an existing installation of MediaWiki is present in the configured administrative connection.

	outputHandler ( $string)

	populateInterwikiTable ()
	Common function for databases that don't understand the MySQLish syntax of interwiki.sql.

	setupSchemaVars ()
	Set appropriate schema variables in the current database connection.

	setVar ( $name, $value)
	Convenience alias for $this->parent->setVar()

	setVarsFromRequest ( $varNames)
	Convenience function to set variables based on form data.

	submitInstallUserBox ()
	Submit a standard install user fieldset.

	submitWebUserBox ()
	Submit the form from getWebUserBox().

Public Attributes
	$maxRoleSearchDepth = 5

Public Attributes inherited from DatabaseInstaller
Database	$db = null
	The database connection.

WebInstaller	$parent
	The Installer object.

Static Public Attributes
static	$minimumVersion = '9.2'

Static Public Attributes inherited from DatabaseInstaller
static string	$minimumVersion
	Set by subclasses.

Protected Member Functions
	canCreateAccounts ()

	canCreateObjectsForWebUser ()
	Returns true if the install user is able to create objects owned by the web user, false otherwise.

	getInstallUserPermissions ()

	getPgConnection ( $type)
	Get a special type of connection.

	isRoleMember ( $conn, $targetMember, $group, $maxDepth)
	Recursive helper for canCreateObjectsForWebUser().

	isSuperUser ()

	openConnectionWithParams ( $user, $password, $dbName, $schema)
	Open a PG connection with given parameters.

	openPgConnection ( $type)
	Get a connection of a specific PostgreSQL-specific type.

Protected Attributes
	$globalNames

	$internalDefaults

	$pgConns = []

Protected Attributes inherited from DatabaseInstaller
array	$globalNames = []
	Array of MW configuration globals this class uses.

array	$internalDefaults = []
	Internal variables for installation.

Static Protected Attributes
static	$notMinimumVersionMessage = 'config-postgres-old'

Static Protected Attributes inherited from DatabaseInstaller
static string	$notMinimumVersionMessage
	Set by subclasses.

Additional Inherited Members
Static Public Member Functions inherited from DatabaseInstaller
static	meetsMinimumRequirement ( $serverVersion)
	Whether the provided version meets the necessary requirements for this type.

Static Protected Member Functions inherited from DatabaseInstaller
static	checkExtension ( $name)
	Convenience function.

Detailed Description

Class for setting up the MediaWiki database using Postgres.

Since: 1.17

Definition at line 35 of file PostgresInstaller.php.

Member Function Documentation

◆ canCreateAccounts()

PostgresInstaller::canCreateAccounts ( )

protected

Definition at line 311 of file PostgresInstaller.php.

References getInstallUserPermissions().

Referenced by getSettingsForm(), and submitSettingsForm().

◆ canCreateObjectsForWebUser()

PostgresInstaller::canCreateObjectsForWebUser ( )

protected

Returns true if the install user is able to create objects owned by the web user, false otherwise.

Returns: bool

Definition at line 407 of file PostgresInstaller.php.

References getPgConnection(), DatabaseInstaller\getVar(), isRoleMember(), and isSuperUser().

Referenced by submitSettingsForm().

◆ commitChanges()

PostgresInstaller::commitChanges ( )

Definition at line 533 of file PostgresInstaller.php.

◆ createTables()

PostgresInstaller::createTables ( )

Create database tables from scratch.

Returns: Status

Reimplemented from DatabaseInstaller.

Definition at line 597 of file PostgresInstaller.php.

References DatabaseInstaller\enableLB(), getConnection(), DatabaseInstaller\getSchemaPath(), and DatabaseInstaller\getVar().

◆ getConnectForm()

PostgresInstaller::getConnectForm ( )

Get HTML for a web form that configures this database.

Configuration at this time should be the minimum needed to connect and test whether install or upgrade is required.

If this is called, $this->parent can be assumed to be a WebInstaller.

Reimplemented from DatabaseInstaller.

Definition at line 64 of file PostgresInstaller.php.

References DatabaseInstaller\getInstallUserBox(), DatabaseInstaller\getTextBox(), and wfMessage().

◆ getConnection()

PostgresInstaller::getConnection ( )

Connect to the database using the administrative user/password currently defined in the session.

Returns a status object. On success, the status object will contain a Database object in its value member.

This will return a cached connection if one is available.

Returns: Status PhanUndeclaredMethod

Reimplemented from DatabaseInstaller.

Definition at line 140 of file PostgresInstaller.php.

References getPgConnection().

Referenced by createTables().

◆ getGlobalDefaults()

PostgresInstaller::getGlobalDefaults ( )

Get a name=>value map of MW configuration globals for the default values.

Returns: array

Reimplemented from DatabaseInstaller.

Definition at line 639 of file PostgresInstaller.php.

◆ getInstallUserPermissions()

PostgresInstaller::getInstallUserPermissions ( )

protected

Definition at line 294 of file PostgresInstaller.php.

References getPgConnection(), and DatabaseInstaller\getVar().

Referenced by canCreateAccounts(), and isSuperUser().

◆ getLocalSettings()

PostgresInstaller::getLocalSettings ( )

Get the DBMS-specific options for LocalSettings.php generation.

Returns: string

Reimplemented from DatabaseInstaller.

Definition at line 579 of file PostgresInstaller.php.

References DatabaseInstaller\getVar().

◆ getName()

PostgresInstaller::getName ( )

Return the internal name, e.g.

'mysql', or 'sqlite'.

Reimplemented from DatabaseInstaller.

Definition at line 56 of file PostgresInstaller.php.

◆ getPgConnection()

PostgresInstaller::getPgConnection ( $type )

protected

Get a special type of connection.

Parameters

string $type See openPgConnection() for details.

Returns: Status

Definition at line 186 of file PostgresInstaller.php.

References $type, DBO_TRX, and openPgConnection().

Referenced by canCreateObjectsForWebUser(), getConnection(), getInstallUserPermissions(), setupDatabase(), setupPLpgSQL(), setupSchema(), setupUser(), submitConnectForm(), and submitSettingsForm().

◆ getSettingsForm()

PostgresInstaller::getSettingsForm ( )

Get HTML for a web form that retrieves settings used for installation.

$this->parent can be assumed to be a WebInstaller. If the DB type has no settings beyond those already configured with getConnectForm(), this should return false.

Returns: bool

Reimplemented from DatabaseInstaller.

Definition at line 329 of file PostgresInstaller.php.

References $s, canCreateAccounts(), and DatabaseInstaller\getWebUserBox().

◆ isCompiled()

PostgresInstaller::isCompiled ( )

Returns: bool Returns true if the client library is compiled in.

Reimplemented from DatabaseInstaller.

Definition at line 60 of file PostgresInstaller.php.

References DatabaseInstaller\checkExtension().

◆ isRoleMember()

PostgresInstaller::isRoleMember	(	$conn,
		$targetMember,
		$group,
		$maxDepth
	)

protected

Recursive helper for canCreateObjectsForWebUser().

Parameters

Database	$conn
int	$targetMember	Role ID of the member to look for
int	$group	Role ID of the group to look for
int	$maxDepth	Maximum recursive search depth

Returns: bool

Definition at line 433 of file PostgresInstaller.php.

References $res, and isRoleMember().

Referenced by canCreateObjectsForWebUser(), and isRoleMember().

◆ isSuperUser()

PostgresInstaller::isSuperUser ( )

protected

Definition at line 320 of file PostgresInstaller.php.

References getInstallUserPermissions().

Referenced by canCreateObjectsForWebUser(), and setupUser().

◆ openConnection()

PostgresInstaller::openConnection ( )

Open a connection to the database using the administrative user/password currently defined in the session, without any caching.

Returns a status object. On success, the status object will contain a Database object in its value member.

Returns: Status

Reimplemented from DatabaseInstaller.

Definition at line 149 of file PostgresInstaller.php.

References openPgConnection().

◆ openConnectionToAnyDB()

PostgresInstaller::openConnectionToAnyDB	(	$user,
		$password
	)

Definition at line 259 of file PostgresInstaller.php.

References DatabaseInstaller\$db, and DatabaseInstaller\getVar().

Referenced by openPgConnection(), and submitSettingsForm().

◆ openConnectionWithParams()

PostgresInstaller::openConnectionWithParams	(	$user,
		$password,
		$dbName,
		$schema
	)

protected

Open a PG connection with given parameters.

Parameters

string	$user	User name
string	$password
string	$dbName	Database name
string	$schema	Database schema

Returns: Status

Definition at line 161 of file PostgresInstaller.php.

References DatabaseInstaller\$db, and DatabaseInstaller\getVar().

Referenced by openPgConnection().

◆ openPgConnection()

PostgresInstaller::openPgConnection ( $type )

protected

Get a connection of a specific PostgreSQL-specific type.

Connections of a given type are cached.

PostgreSQL lacks cross-database operations, so after the new database is created, you need to make a separate connection to connect to that database and add tables to it.

New tables are owned by the user that creates them, and MediaWiki's PostgreSQL support has always assumed that the table owner will be $wgDBuser. So before we create new tables, we either need to either connect as the other user or to execute a SET ROLE command. Using a separate connection for this allows us to avoid accidental cross-module dependencies.

Parameters

string

$type

The type of connection to get:

create-db: A connection for creating DBs, suitable for pre- installation.
create-schema: A connection to the new DB, for creating schemas and other similar objects in the new DB.
create-tables: A connection with a role suitable for creating tables.

Exceptions

MWException

Returns: Status On success, a connection object will be in the value member.

Definition at line 230 of file PostgresInstaller.php.

References $type, DatabaseInstaller\getVar(), openConnectionToAnyDB(), openConnectionWithParams(), and openPgConnection().

Referenced by getPgConnection(), openConnection(), and openPgConnection().

◆ preInstall()

PostgresInstaller::preInstall ( )

Allow DB installers a chance to make last-minute changes before installation occurs.

This happens before setupDatabase() or createTables() is called, but long after the constructor. Helpful for things like modifying setup steps :)

Reimplemented from DatabaseInstaller.

Definition at line 459 of file PostgresInstaller.php.

References DatabaseInstaller\getVar().

◆ preUpgrade()

PostgresInstaller::preUpgrade ( )

Allow DB installers a chance to make checks before upgrade.

Reimplemented from DatabaseInstaller.

Definition at line 588 of file PostgresInstaller.php.

References $wgDBpassword, $wgDBuser, and DatabaseInstaller\getVar().

◆ setupDatabase()

PostgresInstaller::setupDatabase ( )

Create the database and return a Status object indicating success or failure.

Returns: Status

Reimplemented from DatabaseInstaller.

Definition at line 485 of file PostgresInstaller.php.

References getPgConnection(), and DatabaseInstaller\getVar().

◆ setupPLpgSQL()

PostgresInstaller::setupPLpgSQL ( )

Definition at line 647 of file PostgresInstaller.php.

References getPgConnection(), and DatabaseInstaller\getVar().

◆ setupSchema()

PostgresInstaller::setupSchema ( )

Definition at line 504 of file PostgresInstaller.php.

References getPgConnection(), and DatabaseInstaller\getVar().

◆ setupUser()

PostgresInstaller::setupUser ( )

Definition at line 539 of file PostgresInstaller.php.

References getPgConnection(), DatabaseInstaller\getVar(), and isSuperUser().

◆ submitConnectForm()

PostgresInstaller::submitConnectForm ( )

Set variables based on the request array, assuming it was submitted via the form returned by getConnectForm().

Validate the connection settings by attempting to connect with them.

If this is called, $this->parent can be assumed to be a WebInstaller.

Returns: Status

Reimplemented from DatabaseInstaller.

Definition at line 90 of file PostgresInstaller.php.

References getPgConnection(), DatabaseInstaller\getVar(), DatabaseInstaller\setVar(), DatabaseInstaller\setVarsFromRequest(), and DatabaseInstaller\submitInstallUserBox().

◆ submitSettingsForm()

PostgresInstaller::submitSettingsForm ( )

Set variables based on the request array, assuming it was submitted via the form return by getSettingsForm().

Returns: Status

Reimplemented from DatabaseInstaller.

Definition at line 340 of file PostgresInstaller.php.

References canCreateAccounts(), canCreateObjectsForWebUser(), getPgConnection(), DatabaseInstaller\getVar(), openConnectionToAnyDB(), DatabaseInstaller\setVar(), and DatabaseInstaller\submitWebUserBox().

Member Data Documentation

◆ $globalNames

PostgresInstaller::$globalNames

protected

Initial value:

= [
        'wgDBserver',
        'wgDBport',
        'wgDBname',
        'wgDBuser',
        'wgDBpassword',
        'wgDBmwschema',
    ]

Definition at line 37 of file PostgresInstaller.php.

◆ $internalDefaults

PostgresInstaller::$internalDefaults

protected

Initial value:

= [
        '_InstallUser' => 'postgres',
    ]

Definition at line 46 of file PostgresInstaller.php.

◆ $maxRoleSearchDepth

PostgresInstaller::$maxRoleSearchDepth = 5

Definition at line 52 of file PostgresInstaller.php.

◆ $minimumVersion

PostgresInstaller::$minimumVersion = '9.2'

static

Definition at line 50 of file PostgresInstaller.php.

◆ $notMinimumVersionMessage

PostgresInstaller::$notMinimumVersionMessage = 'config-postgres-old'

staticprotected

Definition at line 51 of file PostgresInstaller.php.

◆ $pgConns

PostgresInstaller::$pgConns = []

protected

Definition at line 54 of file PostgresInstaller.php.

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

includes/installer/PostgresInstaller.php

Public Member Functions

Public Attributes

Static Public Attributes

Protected Member Functions

Protected Attributes

Static Protected Attributes

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ canCreateAccounts()

◆ canCreateObjectsForWebUser()

◆ commitChanges()

◆ createTables()

◆ getConnectForm()

◆ getConnection()

◆ getGlobalDefaults()

◆ getInstallUserPermissions()

◆ getLocalSettings()

◆ getName()

◆ getPgConnection()

◆ getSettingsForm()

◆ isCompiled()

◆ isRoleMember()

◆ isSuperUser()

◆ openConnection()

◆ openConnectionToAnyDB()

◆ openConnectionWithParams()

◆ openPgConnection()

◆ preInstall()

◆ preUpgrade()

◆ setupDatabase()

◆ setupPLpgSQL()

◆ setupSchema()

◆ setupUser()

◆ submitConnectForm()

◆ submitSettingsForm()

Member Data Documentation

◆ $globalNames

◆ $internalDefaults

◆ $maxRoleSearchDepth

◆ $minimumVersion

◆ $notMinimumVersionMessage

◆ $pgConns