Joomla! API

Class constructor, overridden in descendant classes.

__construct(mixed properties = null) : mixed

inherited

since	1.7.0

Arguments

properties: mixedEither and associative array or another object to set the initial properties of the object.

Response

mixed

Magic method to convert the object to a string gracefully.

__toString() : string

inherited deprecated

since	1.7.0
deprecated	3.1.4 Classes should provide their own __toString() implementation.

Response

stringThe classname.

Installation abort method

abort(string msg = null, string type = null) : bool

since	3.1

Arguments

msg: stringAbort message from the installer
type: stringPackage type if defined

Response

boolTrue if successful

Cleans up discovered extensions if they're being installed some other way

cleanDiscoveredExtension(string type, string element, string folder = '', int client) : object

since	3.1

Arguments

type: stringThe type of extension (component, etc)
element: stringUnique element identifier (e.g. com_content)
folder: stringThe folder of the extension (plugins; e.g. system)
client: intThe client application (administrator or site)

Response

objectResult of query

Copyfiles

copyFiles(array files, bool overwrite = null) : bool

Copy files from source directory to the target directory

since	3.1

Arguments

files: arrayArray with filenames
overwrite: boolTrue if existing files can be replaced

Response

boolTrue on success

Copies the installation manifest file to the extension folder in the given client

copyManifest(int cid = 1) : bool

since	3.1

Arguments

cid: intWhere to copy the installfile [optional: defaults to 1 (admin)]

Response

boolTrue on success, False on error

Sets a default value if not already assigned

def(string property, mixed default = null) : mixed

inherited

since	1.7.0

Arguments

property: stringThe name of the property.
default: mixedThe default value.

Response

mixed

Extension discover method

discover() : \Joomla\CMS\Installer\InstallerExtension[]

Asks each adapter to find extensions

since	3.1

Response

\Joomla\CMS\Installer\InstallerExtension[]

Discovered package installation method

discover_install(int eid = null) : bool

since	3.1

Arguments

eid: intExtension ID

Response

boolTrue if successful

Compares two "files" entries to find deleted files/folders

findDeletedFiles(array oldFiles, array newFiles) : array

since	3.1

Arguments

oldFiles: arrayAn array of \SimpleXMLElement objects that are the old files
newFiles: arrayAn array of \SimpleXMLElement objects that are the new files

Response

arrayAn array with the delete files and folders in findDeletedFiles[files] and findDeletedFiles[folders] respectively

Tries to find the package manifest file

findManifest() : bool

since	3.1

Response

boolTrue on success, False on error

Generates a manifest cache

generateManifestCache() : string

since	3.1

Response

stringserialised manifest data

Returns a property of the object or the default value if the property is not set.

get(string property, mixed default = null) : mixed

inherited

since	1.7.0
see	CMSObject::getProperties()

Arguments

property: stringThe name of the property.
default: mixedThe default value.

Response

mixedThe value of the property.

Return an adapter.

getAdapter(string name, array options = array()) : static|bool

inherited

since	1.6

Arguments

name: stringName of adapter to return
options: arrayAdapter options

Response

static|boolAdapter of type 'name' or false

Gets a list of available install adapters.

getAdapters(array options = array(), array custom = array()) : string[]

since	3.4

Arguments

options: arrayAn array of options to inject into the adapter
custom: arrayArray of custom install adapters

Response

string[]An array of the class names of available install adapters.

Get the database connector object

getDbo() : \Joomla\Database\DatabaseDriver

inherited

since	1.6

Response

\Joomla\Database\DatabaseDriverDatabase connector object

Get the most recent error message.

getError(int i = null, bool toString = true) : string

inherited deprecated

since	1.7.0
deprecated	3.1.4 JError has been deprecated

Arguments

i: intOption error index.
toString: boolIndicates if Exception objects should return their error message.

Response

stringError message

Return all errors, if any.

getErrors() : array

inherited deprecated

since	1.7.0
deprecated	3.1.4 JError has been deprecated

Response

arrayArray of error messages.

Returns the global Installer object, only creating it if it doesn't already exist.

getInstance(string basepath = __DIR__, string classprefix = '\Joomla\CMS\Installer\Adapter', string adapterfolder = 'Adapter') : \Joomla\CMS\Installer\Installer

static

since	3.1

Arguments

basepath: stringBase Path of the adapters
classprefix: stringClass prefix of adapters
adapterfolder: stringName of folder to append to base path

Response

\Joomla\CMS\Installer\InstallerAn installer object

Get the installation manifest object

getManifest() : \SimpleXMLElement

since	3.1

Response

\SimpleXMLElementManifest object

Method to parse the parameters of an extension, build the JSON string for its default parameters, and return the JSON string.

getParams() : string

since	3.1
note	This method must always return a JSON compliant string

Response

stringJSON string of parameter values

Get an installer path by name

getPath(string name, string default = null) : string

since	3.1

Arguments

name: stringPath name
default: stringDefault value

Response

stringPath

Returns an associative array of object properties.

getProperties(bool public = true) : array

inherited

since	1.7.0
see	CMSObject::get()

Arguments

public: boolIf true, returns only the public properties.

Response

array

Get the redirect location

getRedirectUrl() : string

since	3.1

Response

stringRedirect location (or null)

Package installation method

install(string path = null) : bool

since	3.1

Arguments

path: stringPath to package source folder

Response

boolTrue if successful

Is the XML file a valid Joomla installation manifest file.

isManifest(string file) : \SimpleXMLElement|null

since	3.1

Arguments

file: stringAn xmlfile path to check

Response

\SimpleXMLElement|nullA \SimpleXMLElement, or null if the file failed to parse

Get the allow overwrite switch

isOverwrite() : bool

since	3.1

Response

boolAllow overwrite switch

Get whether this installer is uninstalling extensions which are part of a package

isPackageUninstall() : bool

since	3.7.0

Response

bool

Get the upgrade switch

isUpgrade() : bool

since	3.1

Response

bool

Method to load an adapter instance

loadAdapter(string adapter, array options = array()) : \Joomla\CMS\Installer\InstallerAdapter

since	3.4
throws	`\InvalidArgumentException`

Arguments

adapter: stringAdapter name
options: arrayAdapter options

Response

\Joomla\CMS\Installer\InstallerAdapter

Loads all adapters.

loadAllAdapters(array options = array()) : void

inherited

since	1.6

Arguments

options: arrayAdapter options

Loads an MD5SUMS file into an associative array

loadMD5Sum(string filename) : array

since	3.1

Arguments

filename: stringFilename to load

Response

arrayAssociative array with filenames as the index and the MD5 as the value

Method to parse through a files element of the installation manifest and take appropriate action.

parseFiles(\SimpleXMLElement element, int cid, array oldFiles = null, array oldMD5 = null) : bool

since	3.1

Arguments

element: \SimpleXMLElementThe XML node to process
cid: intApplication ID of application to install to
oldFiles: arrayList of old files (SimpleXMLElement's)
oldMD5: arrayList of old MD5 sums (indexed by filename with value as MD5)

Response

boolTrue on success

Method to parse through a languages element of the installation manifest and take appropriate action.

parseLanguages(\SimpleXMLElement element, int cid) : bool

since	3.1

Arguments

element: \SimpleXMLElementThe XML node to process
cid: intApplication ID of application to install to

Response

boolTrue on success

Method to parse through a media element of the installation manifest and take appropriate action.

parseMedia(\SimpleXMLElement element, int cid) : bool

since	3.1

Arguments

element: \SimpleXMLElementThe XML node to process
cid: intApplication ID of application to install to

Response

boolTrue on success

Backward compatible method to parse through a queries element of the installation manifest file and take appropriate action.

parseQueries(\SimpleXMLElement element) : mixed

since	3.1

Arguments

element: \SimpleXMLElementThe XML node to process

Response

mixedNumber of queries processed or False on error

Method to process the updates for an item

parseSchemaUpdates(\SimpleXMLElement schema, int eid) : bool|int

since	3.1

Arguments

schema: \SimpleXMLElementThe XML node to process
eid: intExtension Identifier

Response

bool|intNumber of SQL updates executed; false on failure.

Method to extract the name of a discreet installation sql file from the installation manifest file.

parseSQLFiles(object element) : mixed

since	3.1

Arguments

element: objectThe XML node to process

Response

mixedNumber of queries processed or False on error

Parse a XML install manifest file.

parseXMLInstallFile(string path) : array

static

XML Root tag should be 'install' except for languages which use meta file.

since	3.0.0

Arguments

path: stringFull path to XML file.

Response

arrayXML metadata.

Pushes a step onto the installer stack for rolling back steps

pushStep(array step) : void

since	3.1

Arguments

step: arrayInstaller step

Refreshes the manifest cache stored in #__extensions

refreshManifestCache(int eid) : bool

since	3.1

Arguments

eid: intExtension ID

Response

bool

Method to parse through a files element of the installation manifest and remove the files that were installed

removeFiles(object element, int cid) : bool

since	3.1

Arguments

element: objectThe XML node to process
cid: intApplication ID of application to remove from

Response

boolTrue on success

Modifies a property of the object, creating it if it does not already exist.

set(string property, mixed value = null) : mixed

inherited

since	1.7.0

Arguments

property: stringThe name of the property.
value: mixedThe value of the property to set.

Response

mixedPrevious value of the property.

Set an adapter by name

setAdapter(string name, object &adapter = null, array options = array()) : bool

inherited

since	1.6

Arguments

name: stringAdapter name
adapter: objectAdapter object
options: arrayAdapter options

Response

boolTrue if successful

Add an error message.

setError(string error) : void

inherited deprecated

since	1.7.0
deprecated	3.1.4 JError has been deprecated

Arguments

error: stringError message.

Set the allow overwrite switch

setOverwrite(bool state = false) : bool

since	3.1

Arguments

state: boolOverwrite switch state

Response

boolTrue it state is set, false if it is not

Set whether this installer is uninstalling extensions which are part of a package

setPackageUninstall(bool uninstall) : void

since	3.7.0

Arguments

uninstall: boolTrue if a package triggered the uninstall, false otherwise

Sets an installer path by name

setPath(string name, string value) : void

since	3.1

Arguments

name: stringPath name
value: stringPath

Set the object properties based on a named array/hash.

setProperties(mixed properties) : bool

inherited

since	1.7.0
see	CMSObject::set()

Arguments

properties: mixedEither an associative array or another object.

Response

bool

Set the redirect location

setRedirectUrl(string newurl) : void

since	3.1

Arguments

newurl: stringNew redirect location

Set the schema version for an extension by looking at its latest update

setSchemaVersion(\SimpleXMLElement schema, int eid) : void

since	3.1

Arguments

schema: \SimpleXMLElementSchema Tag
eid: intExtension ID

Set the upgrade switch

setUpgrade(bool state = false) : bool

since	3.1

Arguments

state: boolUpgrade switch state

Response

boolTrue if upgrade, false otherwise

Prepare for installation: this method sets the installation directory, finds and checks the installation file and verifies the installation type.

setupInstall(string route = 'install', bool returnAdapter = false) : bool|\Joomla\CMS\Installer\InstallerAdapter

since	3.1

Arguments

route: stringThe install route being followed
returnAdapter: boolFlag to return the instantiated adapter

Response

bool|\Joomla\CMS\Installer\InstallerAdapterInstallerAdapter object if explicitly requested otherwise boolean

Splits a string of multiple queries into an array of individual queries.

splitSql(string|null sql) : array

static

This is different than DatabaseDriver::splitSql. It supports the special CAN FAIL comment marker which indicates that a SQL statement could fail without raising an error during the installation.

since	4.2.0

Arguments

sql: string|nullInput SQL string with which to split into individual queries.

Response

array

Package uninstallation method

uninstall(string type, mixed identifier) : bool

since	3.1

Arguments

type: stringPackage type
identifier: mixedPackage identifier for adapter

Response

boolTrue if successful

Package update method

update(string path = null) : bool

since	3.1

Arguments

path: stringPath to package source folder

Response

boolTrue if successful

Update the schema table with the latest version

updateSchemaTable(int eid, string version, bool update = false) : void

since	4.2.0

Arguments

eid: intExtension ID.
version: stringLatest schema version ID.
update: boolShould I run an update against an existing record or insert a new one?

A comment marker to indicate that an update SQL query may fail without triggering an update error.

Value	'/ CAN FAIL /'
since	4.2.0

The length of the CAN_FAIL_MARKER string

Value	16
since	4.2.0

Array of paths needed by the installer

since	3.1

Type(s)

array

True if package is an upgrade

since	3.1

Type(s)

bool

The manifest trigger class

since	3.1

Type(s)

object

True if existing files can be overwritten

since	3.0.0

Type(s)

bool

Stack of installation steps

Used for installation rollback

since	3.1

Type(s)

array

Extension Table Entry

since	3.1

Type(s)

Extension

The output from the install/uninstall scripts

since	3.1

Type(s)

string

The installation manifest XML object

since	3.1

Type(s)

object

The extension message that appears

since	3.1

Type(s)

string

The redirect URL if this extension (can be null if no redirect)

since	3.1

Type(s)

string

Flag if the uninstall process was triggered by uninstalling a package

since	3.7.0

Type(s)

bool

Backup extra_query during update_sites rebuild

since	3.9.26

Type(s)

string

JInstaller instances container.

static

since	3.4

Type(s)

Installer[]

Associative array of adapters

inherited

since	1.6

Type(s)

static[]

Adapter Folder

inherited

since	1.6

Type(s)

string

Adapter Class Prefix

inherited

since	1.6

Type(s)

string

Base Path for the adapter instance

inherited

since	1.6

Type(s)

string

Database Connector Object

inherited

since	1.6

Type(s)

\Joomla\Database\DatabaseDriver

An array of error messages or Exception objects.

inherited deprecated

since	1.7.0
deprecated	3.1.4 JError has been deprecated

Type(s)

array

Installer

Methods

__construct

Arguments

Response

__toString

Response

abort

Arguments

Response

cleanDiscoveredExtension

Arguments

Response

copyFiles

Arguments

Response

copyManifest

Arguments

Response

def

Arguments

Response

discover

Response

discover_install

Arguments

Response

findDeletedFiles

Arguments

Response

findManifest

Response

generateManifestCache

Response

get

Arguments

Response

getAdapter

Arguments

Response

getAdapters

Arguments

Response

getDbo

Response

getError

Arguments

Response

getErrors

Response

getInstance

Arguments

Response

getManifest

Response

getParams

Response

getPath

Arguments

Response

getProperties

Arguments

Response

getRedirectUrl

Response

install

Arguments

Response

isManifest

Arguments

Response

isOverwrite

Response

isPackageUninstall

Response

isUpgrade

Response

loadAdapter

Arguments

Response