Application

Type

Class

Namespace

craft\web

Inherits

craft\web\Application » yii\web\Application » yii\base\Application » yii\base\Module » yii\di\ServiceLocator » yii\base\Component » yii\base\BaseObject

Implements

yii\base\Configurable

Uses traits

craft\base\ApplicationTrait

Since

3.0.0

Craft Web Application class

An instance of the Web Application class is globally accessible to web requests in Craft via \Craft::$app.

View source

Public Properties

Property	Description
addresses	craft\services\Addresses – The addresses service
aliases	array – List of path aliases to be defined.
announcements	craft\services\Announcements – The announcements service
api	craft\services\Api – The API service
assetIndexer	craft\services\AssetIndexer – The asset indexer service
assetManager	yii\web\AssetManager – The asset manager application component.
assets	craft\services\Assets – The assets service
auth	craft\services\Auth – The user authentication service
authManager	yii\rbac\ManagerInterface, null – The auth manager application component or null if it's not configured.
basePath	string – The root directory of the application.
behaviors	yii\base\Behavior – List of behaviors attached to this component.
bootstrap	array – List of components that should be run during the application bootstrapping process.
cache	yii\caching\CacheInterface, null – The cache application component.
canTestEditions	boolean – Whether Craft is running on a domain that is eligible to test out the editions
canUpgradeEdition	boolean – Whether Craft is eligible to be upgraded to a different edition
catchAll	array, null – The configuration specifying a controller action which should handle all user requests.
categories	craft\services\Categories – The categories service
charset	string – The charset currently used for the application.
components	array – The list of the component definitions or the loaded component instances (ID => definition or instance).
composer	craft\services\Composer – The Composer service
conditions	craft\services\Conditions – The conditions service
config	craft\services\Config – The config service
container	array – Values given in terms of name-value pairs.
contentMigrator	craft\db\MigrationManager – The content migration manager
controller	yii\web\Controller – The currently active controller instance
controllerMap	array – Mapping from controller ID to controller configurations.
controllerNamespace	string – The namespace that controller classes are located in.
controllerPath	string – The directory that contains the controller classes.
dashboard	craft\services\Dashboard – The dashboard service
db	yii\db\Connection – The database connection.
db2	craft\db\Connection – The database connection component used for mutex locks and element bulk op records
defaultRoute	string – The default route of this application.
deprecator	craft\services\Deprecator – The deprecator service
drafts	craft\services\Drafts – The drafts service
dumper	\Symfony\Component\VarDumper\Dumper\AbstractDumper
edition	\craft\enums\CmsEdition – The installed Craft CMS edition.
editionHandle	string
editionName	string
elementSources	craft\services\ElementSources – The element sources service
elements	craft\services\Elements – The elements service
entries	craft\services\Entries – The entries service
env	string, null – The environment ID Craft is currently running in.
envId	string
errorHandler	yii\web\ErrorHandler – The error handler application component.
extensions	array, null – List of installed Yii extensions.
fields	craft\services\Fields – The fields service
formatter	yii\i18n\Formatter – The formatter application component.
formattingLocale	craft\i18n\Locale – The Locale object that should be used to define the formatter
fs	craft\services\Fs – The filesystems service
gc	craft\services\Gc – The garbage collection service
globals	craft\services\Globals – The globals service
gql	craft\services\Gql – The GraphQl service
hasWrongEdition	boolean – Whether Craft is running with the wrong edition
homeUrl	string – The homepage URL.
i18n	yii\i18n\I18N – The internationalization application component.
id	string – An ID that uniquely identifies this module among other modules which have the same parent.
imageTransforms	craft\services\ImageTransforms – The image transforms service
images	craft\services\Images – The images service
info	craft\models\Info
installedSchemaVersion	string – The installed schema version
isInMaintenanceMode	boolean – Whether someone is currently performing a system update
isInitialized	boolean – Whether Craft is fully initialized
isInstalled	boolean – Whether Craft is installed
isLive	boolean
isMultiSite	boolean – Whether this site has multiple sites
isSystemLive	boolean – Whether the system is live
language	string – The language that is meant to be used for end users.
layout	string, boolean – The layout that should be applied for views in this application.
layoutPath	string – The root directory of layout files.
licensedEdition	\craft\enums\CmsEdition, null
licensedEditionName	string, null
loadedModules	array – List of loaded modules indexed by their class names.
locale	craft\i18n\Locale – The Locale object for the target language
log	yii\log\Dispatcher – The log dispatcher application component.
mailer	yii\mail\MailerInterface – The mailer application component.
migrator	craft\db\MigrationManager – The application’s migration manager
minVersionRequired	string – The minimum Craft build number required to update to this build.
module	yii\base\Module, null – The parent module of this module.
modules	array – The modules (indexed by their IDs).
mutex	yii\mutex\Mutex – The application’s mutex service
name	string – The application name.
params	array – Custom module parameters (name => value).
path	craft\services\Path – The path service
pluginStore	craft\services\PluginStore – The plugin store service
plugins	craft\services\Plugins – The plugins service
projectConfig	craft\services\ProjectConfig – The project config service
queue	yii\queue\Queue, craft\queue\QueueInterface – The job queue
relations	craft\services\Relations – The relations service (deprecated)
request	craft\web\Request – The request component
requestedAction	yii\base\Action, null – The requested Action.
requestedParams	array – The parameters supplied to the requested action.
requestedRoute	string – The requested route
response	craft\web\Response – The response component
revisions	craft\services\Revisions – The revisions service
routes	craft\services\Routes – The routes service
runtimePath	string – The directory that stores runtime files.
schemaVersion	string – Craft’s schema version number.
search	craft\services\Search – The search service
security	yii\base\Security – The security application component.
session	craft\web\Session – The session component
sites	craft\services\Sites – The sites service
sourceLanguage	string – The language that the application is written in.
sso	craft\services\Sso – The SSO service
state	integer – The current application state during a request handling life cycle.
structures	craft\services\Structures – The structures service
systemMessages	craft\services\SystemMessages – The system email messages service
systemName	string
systemUid	string, null
tags	craft\services\Tags – The tags service
targetLanguage	string
templateCaches	craft\services\TemplateCaches – The template caches service
timeZone	string – The time zone used by this application.
tokens	craft\services\Tokens – The tokens service
uniqueId	string – The unique ID of the module.
updates	craft\services\Updates – The updates service
urlManager	craft\web\UrlManager – The URL manager for this application
user	craft\web\User – The user component
userGroups	craft\services\UserGroups – The user groups service
userPermissions	craft\services\UserPermissions – The user permissions service
users	craft\services\Users – The users service
utilities	craft\services\Utilities – The utilities service
vendorPath	string – The directory that stores vendor files.
version	string – The version of this module.
view	yii\base\View, yii\web\View – The view application component that is used to render various view files.
viewPath	string – The root directory of view files.
volumes	craft\services\Volumes – The volumes service
webpack	craft\services\Webpack – The webpack service
yiiVersion	string

request

Type

craft\web\Request

Default value

null

The request component

View source

response

Type

craft\web\Response

Default value

null

The response component

View source

session

Type

craft\web\Session

Default value

null

The session component

View source

urlManager

Type

craft\web\UrlManager

Default value

null

The URL manager for this application

View source

user

Type

craft\web\User

Default value

null

The user component

View source

Public Methods

Method	Description
__call()	Calls the named method which is not a class method.
__clone()	This method is called after the object is created by cloning an existing one.
__construct()	Constructor.
__get()	Getter magic method.
__isset()	Checks if a property value is null.
__set()	Sets the value of a component property.
__unset()	Sets a component property to be null.
afterAction()	This method is invoked right after an action within this module is executed.
attachBehavior()	Attaches a behavior to this component.
attachBehaviors()	Attaches a list of behaviors to the component.
beforeAction()	This method is invoked right before an action within this module is executed.
behaviors()	Returns a list of behaviors that this component should behave as.
bootstrap()	Initializes extensions and executes bootstrap components.
canGetProperty()	Returns a value indicating whether a property can be read.
canSetProperty()	Returns a value indicating whether a property can be set.
className()	Returns the fully qualified name of this class.
clear()	Removes the component from the locator.
coreComponents()	Returns the configuration of core application components.
createController()	Creates a controller instance based on the given route.
createControllerByID()	Creates a controller based on the given controller ID.
detachBehavior()	Detaches a behavior from the component.
detachBehaviors()	Detaches all behaviors from the component.
disableMaintenanceMode()	Disables Maintenance Mode.
enableMaintenanceMode()	Enables Maintenance Mode.
end()	Terminates the application.
ensureBehaviors()	Makes sure that the behaviors declared in behaviors() are attached to this component.
get()	Returns the component instance with the specified ID.
getAddresses()	Returns the addresses service.
getAnnouncements()	Returns the announcements service.
getApi()	Returns the API service.
getAssetIndexer()	Returns the asset indexing service.
getAssetManager()	Returns the asset manager.
getAssets()	Returns the assets service.
getAuth()	Returns the user authentication service.
getAuthManager()	Returns the auth manager for this application.
getBasePath()	Returns the root directory of the module.
getBehavior()	Returns the named behavior object.
getBehaviors()	Returns all behaviors attached to this component.
getCache()	Returns the cache component.
getCanUpgradeEdition()	Returns whether Craft is eligible to be upgraded to a different edition.
getCategories()	Returns the categories service.
getComponents()	Returns the list of the component definitions or the loaded component instances.
getComposer()	Returns the Composer service.
getConditions()	Returns the conditions service.
getConfig()	Returns the config service.
getContentMigrator()	Returns the content migration manager.
getControllerPath()	Returns the directory that contains the controller classes according to controllerNamespace.
getDashboard()	Returns the dashboard service.
getDb()	Returns the database connection component.
getDb2()	Returns the database connection used for mutex locks and element bulk op records.
getDeprecator()	Returns the deprecator service.
getDrafts()	Returns the drafts service.
getDumper()	Returns the variable dumper.
getEdition()	Returns the installed Craft CMS edition’s ID.
getEditionHandle()	Returns the handle of the Craft edition.
getEditionName()	Returns the name of the Craft edition.
getElementSources()	Returns the element indexes service.
getElements()	Returns the elements service.
getEntries()	Returns the entries service.
getEnvId()	Returns the application ID combined with the environment name.
getErrorHandler()	Returns the error handler component.
getFields()	Returns the fields service.
getFormatter()	Returns the formatter component.
getFormattingLocale()	Returns the locale that should be used to define the formatter.
getFs()	Returns the filesystems service.
getGc()	Returns the garbage collection service.
getGlobals()	Returns the globals service.
getGql()	Returns the GraphQL service.
getHasWrongEdition()	Returns whether Craft is running with the wrong edition.
getHomeUrl()
getI18n()	Returns the internationalization (i18n) component.
getImageTransforms()	Returns the image transforms service.
getImages()	Returns the images service.
getInfo()	Returns the info model, or just a particular attribute.
getInstalledSchemaVersion()	Returns the installed schema version.
getInstance()	Returns the currently requested instance of this module class.
getIsInMaintenanceMode()	Returns whether someone is currently performing a system update.
getIsInitialized()	Returns whether Craft has been fully initialized.
getIsInstalled()	Returns whether Craft is installed.
getIsLive()	Returns whether the system is currently live.
getIsMultiSite()	Returns whether this Craft install has multiple sites.
getLayoutPath()	Returns the directory that contains layout view files for this module.
getLicensedEdition()	Returns the edition Craft is actually licensed to run in.
getLicensedEditionName()	Returns the name of the edition Craft is actually licensed to run in.
getLocale()	Returns a Locale object for the target language.
getLog()	Returns the log dispatcher component.
getMailer()	Returns the mailer component.
getMigrator()	Returns the application’s migration manager.
getModule()	Retrieves the child module of the specified ID.
getModules()	Returns the sub-modules in this module.
getMutex()	Returns the application’s mutex service.
getPath()	Returns the path service.
getPluginStore()	Returns the plugin store service.
getPlugins()	Returns the plugins service.
getProjectConfig()	Returns the system config service.
getQueue()	Returns the queue service.
getRelations()	Returns the relations service.
getRequest()	Returns the request component.
getResponse()	Returns the response component.
getRevisions()	Returns the revisions service.
getRoutes()	Returns the routes service.
getRuntimePath()	Returns the directory that stores runtime files.
getSearch()	Returns the search service.
getSecurity()	Returns the security component.
getSession()	Returns the session component.
getSites()	Returns the sites service.
getSso()	Returns the SSO service.
getStructures()	Returns the structures service.
getSystemMessages()	Returns the system email messages service.
getSystemName()	Returns the system name.
getSystemUid()	Returns the system's UID.
getTags()	Returns the tags service.
getTargetLanguage()	Returns the target app language.
getTemplateCaches()	Returns the template cache service.
getTimeZone()	Returns the time zone used by this application.
getTokens()	Returns the tokens service.
getUniqueId()	Returns an ID that uniquely identifies this module among all modules within the current application.
getUpdates()	Returns the updates service.
getUrlManager()	Returns the URL manager for this application.
getUser()	Returns the user component.
getUserGroups()	Returns the user groups service.
getUserPermissions()	Returns the user permissions service.
getUsers()	Returns the users service.
getUtilities()	Returns the utilities service.
getVendorPath()	Returns the directory that stores vendor files.
getVersion()	Returns current module version.
getView()	Returns the view object.
getViewPath()	Returns the directory that contains the view files for this module.
getVolumes()	Returns the volumes service.
getWebpack()	Returns the webpack service.
getYiiVersion()	Returns the Yii framework version.
handleRequest()	Handles the specified request.
has()	Returns a value indicating whether the locator has the specified component definition or has instantiated the component.
hasEventHandlers()	Returns a value indicating whether there is any handler attached to the named event.
hasMethod()	Returns a value indicating whether a method is defined.
hasModule()	Checks whether the child module of the specified ID exists.
hasProperty()	Returns a value indicating whether a property is defined for this component.
init()	Initializes the application.
off()	Detaches an existing event handler from this component.
on()	Attaches an event handler to an event.
onAfterRequest()	Invokes a callback function at the end of the request.
onInit()	Invokes a callback function when Craft is fully initialized.
preInit()	Pre-initializes the application.
requireEdition()	Requires that Craft is running an equal or better edition than what's passed in
run()	Runs the application.
runAction()	Runs a controller action specified by a route.
saveInfo()	Updates the info row.
saveInfoAfterRequest()	Updates the info row at the end of the request.
set()	Registers a component definition with this locator.
setAliases()	Defines path aliases.
setBasePath()	Sets the root directory of the application and the @app alias.
setComponents()	Registers a set of component definitions in this locator.
setContainer()	Configures Yii::$container with the $config.
setControllerPath()	Sets the directory that contains the controller classes.
setEdition()	Sets the installed Craft CMS edition.
setHomeUrl()
setInstance()	Sets the currently requested instance of this module class.
setIsInstalled()	Sets Craft's record of whether it's installed
setLayoutPath()	Sets the directory that contains the layout files.
setModule()	Adds a sub-module to this module.
setModules()	Registers sub-modules in the current module.
setRuntimePath()	Sets the directory that stores runtime files.
setTimeZone()	Sets the time zone used by this application.
setVendorPath()	Sets the directory that stores vendor files.
setVersion()	Sets current module version.
setViewPath()	Sets the directory that contains the view files.
trigger()	Triggers an event.
updateTargetLanguage()	Sets the target application language.

bootstrap()

Initializes extensions and executes bootstrap components.

This method is called by init() after the application has been fully configured. If you override this method, make sure you also call the parent implementation.

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end()

Terminates the application.

This method replaces the exit() function by ensuring the application life cycle is completed before terminating the application.

View source

Arguments

• $status (integer) – The exit status (value 0 means normal exit while other values mean abnormal exit).
• $response (yii\base\Response, null) – The response to be sent. If not set, the default application response component will be used.

Throws

• yii\base\ExitException
  if the application is in testing mode

get()

Returns the component instance with the specified ID.

Since version 2.0.13, if a component isn't defined in the module, it will be looked up in the parent module. The parent module may be the application.

View source

Arguments

• $id (string) – Component ID (e.g. db).
• $throwException (boolean) – Whether to throw an exception if $id is not registered with the locator before.

Returns

object, null – The component of the specified ID. If $throwException is false and $id is not registered before, null will be returned.

Throws

• yii\base\InvalidConfigException
  if $id refers to a nonexistent component ID

getRequest()

Returns the request component.

View source

Returns

craft\web\Request –

getResponse()

Returns the response component.

View source

Returns

craft\web\Response –

getSession()

Returns the session component.

View source

Returns

craft\web\Session –

getUrlManager()

Returns the URL manager for this application.

View source

Returns

craft\web\UrlManager –

getUser()

Returns the user component.

View source

Returns

craft\web\User –

handleRequest()

Handles the specified request.

View source

Arguments

• $request (craft\web\Request) – The request to be handled
• $skipSpecialHandling (boolean) – Whether to skip the special case request handling stuff and go straight to the normal routing logic

Returns

yii\web\Response – The resulting response

Throws

• Throwable
  if reasons

init()

Initializes the application.

View source

runAction()

Runs a controller action specified by a route.

This method parses the specified route and creates the corresponding child module(s), controller and action instances. It then calls craft\web\Controller::runAction() to run the action with the given parameters. If the route is empty, the method will use defaultRoute.

View source

Arguments

• $route (string) – The route that specifies the action.
• $params (array) – The parameters to be passed to the action

Returns

yii\web\Response, null – The result of the action, normalized into a Response object

Throws

• yii\base\InvalidRouteException
  if the requested route cannot be resolved into an action successfully.

setTimeZone()

Sets the time zone used by this application.

This is a simple wrapper of PHP function date_default_timezone_set(). Refer to the php manual for available timezones.

View source

Arguments

• $value (string) – The time zone used by this application.

Protected Methods

Method	Description
authenticate()	Authenticates the request.
debugBootstrap()	Bootstraps the Debug Toolbar if necessary.
defaultVersion()	Returns default module version.
ensureResourcePathExists()	Ensures that the resources folder exists and is writable.
registerErrorHandler()	Registers the errorHandler component as a PHP error handler.

authenticate()

Since

3.5.0

Authenticates the request.

View source

Throws

• yii\web\UnauthorizedHttpException

debugBootstrap()

Bootstraps the Debug Toolbar if necessary.

View source

ensureResourcePathExists()

Ensures that the resources folder exists and is writable.

View source

Throws

• yii\base\ErrorException
• yii\base\InvalidConfigException
• yii\base\Exception

Constants

Constant	Description
STATE_AFTER_REQUEST	Application state used by state: application is triggering EVENT_AFTER_REQUEST.
STATE_BEFORE_REQUEST	Application state used by state: application is triggering EVENT_BEFORE_REQUEST.
STATE_BEGIN	Application state used by state: application just started.
STATE_END	Application state used by state: application has ended.
STATE_HANDLING_REQUEST	Application state used by state: application is handling the request.
STATE_INIT	Application state used by state: application is initializing.
STATE_SENDING_RESPONSE	Application state used by state: application is about to send response.

Events

EVENT_AFTER_EDITION_CHANGE

Type

craft\events\EditionChangeEvent

The event that is triggered after the edition changes

---

EVENT_INIT

Type

yii\base\Event

The event that is triggered after the application has been fully initialized

---

Example

php

use craft\web\Application;

Craft::$app->on(Application::EVENT_INIT, function() {
    // ...
});