Application

Type

Class

Namespace

craft\web

Inherits

craft\web\Application » yii\web\Application (opens new window) » yii\base\Application (opens new window) » yii\base\Module (opens new window) » yii\di\ServiceLocator (opens new window) » yii\base\Component (opens new window) » yii\base\BaseObject (opens new window)

Implements

yii\base\Configurable (opens new window)

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 (opens new window)

Public Properties

Property	Description
addresses	craft\services\Addresses – The addresses service
aliases (opens new window)	array (opens new window) – 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	craft\web\AssetManager – The asset manager component
assets	craft\services\Assets – The assets service
authManager (opens new window)	yii\rbac\ManagerInterface (opens new window), null (opens new window) – The auth manager application component or null if it's not configured.
basePath (opens new window)	string (opens new window) – The root directory of the application.
behaviors (opens new window)	yii\base\Behavior (opens new window) – List of behaviors attached to this component.
bootstrap (opens new window)	array (opens new window) – List of components that should be run during the application bootstrapping process (opens new window).
cache (opens new window)	yii\caching\CacheInterface (opens new window), null (opens new window) – The cache application component.
canTestEditions	boolean (opens new window) – Whether Craft is running on a domain that is eligible to test out the editions
canUpgradeEdition	boolean (opens new window) – Whether Craft is eligible to be upgraded to a different edition
catchAll (opens new window)	array (opens new window), null (opens new window) – The configuration specifying a controller action which should handle all user requests.
categories	craft\services\Categories – The categories service
charset (opens new window)	string (opens new window) – The charset currently used for the application.
components (opens new window)	array (opens new window) – 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 (opens new window)	array (opens new window) – Values given in terms of name-value pairs.
content	craft\services\Content – The content service
contentMigrator	craft\db\MigrationManager – The content migration manager
controller (opens new window)	yii\web\Controller (opens new window) – The currently active controller instance
controllerMap (opens new window)	array (opens new window) – Mapping from controller ID to controller configurations.
controllerNamespace (opens new window)	string (opens new window) – The namespace that controller classes are located in.
controllerPath (opens new window)	string (opens new window) – The directory that contains the controller classes.
dashboard	craft\services\Dashboard – The dashboard service
db	craft\db\Connection – The database connection component
defaultRoute (opens new window)	string (opens new window) – 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	integer (opens new window) – The active Craft edition
editionHandle	string (opens new window)
editionName	string (opens new window)
elementSources	craft\services\ElementSources – The element sources service
elements	craft\services\Elements – The elements service
entries	craft\services\Entries – The entries service
env	string (opens new window), null (opens new window) – The environment ID Craft is currently running in.
errorHandler (opens new window)	yii\web\ErrorHandler (opens new window) – The error handler application component.
extensions (opens new window)	array (opens new window), null (opens new window) – List of installed Yii extensions.
fields	craft\services\Fields – The fields service
formatter	craft\i18n\Formatter – The formatter 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 (opens new window) – Whether Craft is running with the wrong edition
homeUrl (opens new window)	string (opens new window) – The homepage URL.
i18n	craft\i18n\I18N – The internationalization (i18n) component
id (opens new window)	string (opens new window) – An ID that uniquely identifies this module among other modules which have the same parent (opens new window).
imageTransforms	craft\services\ImageTransforms – The image transforms service
images	craft\services\Images – The images service
info	craft\models\Info
installedSchemaVersion	string (opens new window) – The installed schema version
isInMaintenanceMode	boolean (opens new window) – Whether someone is currently performing a system update
isInitialized	boolean (opens new window) – Whether Craft is fully initialized
isInstalled	boolean (opens new window) – Whether Craft is installed
isLive	boolean (opens new window)
isMultiSite	boolean (opens new window) – Whether this site has multiple sites
isSystemLive	boolean (opens new window) – Whether the system is live
language (opens new window)	string (opens new window) – The language that is meant to be used for end users.
layout (opens new window)	string (opens new window), boolean (opens new window) – The layout that should be applied for views in this application.
layoutPath (opens new window)	string (opens new window) – The root directory of layout files.
licensedEdition	integer (opens new window), null (opens new window)
licensedEditionName	string (opens new window), null (opens new window)
loadedModules (opens new window)	array (opens new window) – List of loaded modules indexed by their class names.
locale	craft\i18n\Locale – The Locale object for the target language
log (opens new window)	yii\log\Dispatcher (opens new window) – The log dispatcher application component.
mailer	craft\mail\Mailer – The mailer component
matrix	craft\services\Matrix – The matrix service
migrator	craft\db\MigrationManager – The application’s migration manager
minVersionRequired	string (opens new window) – The minimum Craft build number required to update to this build.
module (opens new window)	yii\base\Module (opens new window), null (opens new window) – The parent module of this module.
modules (opens new window)	array (opens new window) – The modules (indexed by their IDs).
mutex	yii\mutex\Mutex (opens new window) – The application’s mutex service
name (opens new window)	string (opens new window) – The application name.
params (opens new window)	array (opens new window) – 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 (opens new window), craft\queue\QueueInterface – The job queue
relations	craft\services\Relations – The relations service
request	craft\web\Request – The request component
requestedAction (opens new window)	yii\base\Action (opens new window), null (opens new window) – The requested Action.
requestedParams (opens new window)	array (opens new window) – The parameters supplied to the requested action.
requestedRoute (opens new window)	string (opens new window) – 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 (opens new window)	string (opens new window) – The directory that stores runtime files.
schemaVersion	string (opens new window) – Craft’s schema version number.
search	craft\services\Search – The search service
sections	craft\services\Sections – The sections service
security	craft\services\Security – The security component
session	craft\web\Session – The session component
sites	craft\services\Sites – The sites service
sourceLanguage (opens new window)	string (opens new window) – The language that the application is written in.
state (opens new window)	integer (opens new window) – 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 (opens new window)
systemUid	string (opens new window), null (opens new window)
tags	craft\services\Tags – The tags service
targetLanguage	string (opens new window)
templateCaches	craft\services\TemplateCaches – The template caches service
timeZone (opens new window)	string (opens new window) – The time zone used by this application.
tokens	craft\services\Tokens – The tokens service
uniqueId (opens new window)	string (opens new window) – 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 (opens new window)	string (opens new window) – The directory that stores vendor files.
version (opens new window)	string (opens new window) – The version of this module.
view	craft\web\View – The view component
viewPath (opens new window)	string (opens new window) – The root directory of view files.
volumes	craft\services\Volumes – The volumes service
webpack	craft\services\Webpack – The webpack service
yiiVersion	string (opens new window)

request

Type

craft\web\Request

Default value

null

The request component

View source (opens new window)

response

Type

craft\web\Response

Default value

null

The response component

View source (opens new window)

session

Type

craft\web\Session

Default value

null

The session component

View source (opens new window)

urlManager

Type

craft\web\UrlManager

Default value

null

The URL manager for this application

View source (opens new window)

user

Type

craft\web\User

Default value

null

The user component

View source (opens new window)

Public Methods

Method	Description
__call() (opens new window)	Calls the named method which is not a class method.
__clone() (opens new window)	This method is called after the object is created by cloning an existing one.
__construct() (opens new window)	Constructor.
__get() (opens new window)	Getter magic method.
__isset() (opens new window)	Checks if a property value is null.
__set() (opens new window)	Sets the value of a component property.
__unset() (opens new window)	Sets a component property to be null.
afterAction() (opens new window)	This method is invoked right after an action within this module is executed.
attachBehavior() (opens new window)	Attaches a behavior to this component.
attachBehaviors() (opens new window)	Attaches a list of behaviors to the component.
beforeAction() (opens new window)	This method is invoked right before an action within this module is executed.
behaviors() (opens new window)	Returns a list of behaviors that this component should behave as.
bootstrap()	Initializes extensions and executes bootstrap components.
canGetProperty() (opens new window)	Returns a value indicating whether a property can be read.
canSetProperty() (opens new window)	Returns a value indicating whether a property can be set.
className() (opens new window)	Returns the fully qualified name of this class.
clear() (opens new window)	Removes the component from the locator.
coreComponents() (opens new window)	Returns the configuration of core application components.
createController() (opens new window)	Creates a controller instance based on the given route.
createControllerByID() (opens new window)	Creates a controller based on the given controller ID.
detachBehavior() (opens new window)	Detaches a behavior from the component.
detachBehaviors() (opens new window)	Detaches all behaviors from the component.
disableMaintenanceMode()	Disables Maintenance Mode.
enableMaintenanceMode()	Enables Maintenance Mode.
end()	Terminates the application.
ensureBehaviors() (opens new window)	Makes sure that the behaviors declared in behaviors() (opens new window) 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 component.
getAssets()	Returns the assets service.
getAuthManager() (opens new window)	Returns the auth manager for this application.
getBasePath() (opens new window)	Returns the root directory of the module.
getBehavior() (opens new window)	Returns the named behavior object.
getBehaviors() (opens new window)	Returns all behaviors attached to this component.
getCache() (opens new window)	Returns the cache component.
getCanTestEditions()	Returns whether Craft is running on a domain that is eligible to test out the editions.
getCanUpgradeEdition()	Returns whether Craft is eligible to be upgraded to a different edition.
getCategories()	Returns the categories service.
getComponents() (opens new window)	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.
getContent()	Returns the content service.
getContentMigrator()	Returns the content migration manager.
getControllerPath() (opens new window)	Returns the directory that contains the controller classes according to controllerNamespace (opens new window).
getDashboard()	Returns the dashboard service.
getDb()	Returns the database connection component.
getDeprecator()	Returns the deprecator service.
getDrafts()	Returns the drafts service.
getDumper()	Returns the variable dumper.
getEdition()	Returns the Craft edition.
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.
getErrorHandler() (opens new window)	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() (opens new window)
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() (opens new window)	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() (opens new window)	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() (opens new window)	Returns the log dispatcher component.
getMailer()	Returns the current mailer.
getMatrix()	Returns the matrix service.
getMigrator()	Returns the application’s migration manager.
getModule() (opens new window)	Retrieves the child module of the specified ID.
getModules() (opens new window)	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() (opens new window)	Returns the directory that stores runtime files.
getSearch()	Returns the search service.
getSections()	Returns the sections service.
getSecurity()	Returns the security component.
getSession()	Returns the session component.
getSites()	Returns the sites 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() (opens new window)	Returns the time zone used by this application.
getTokens()	Returns the tokens service.
getUniqueId() (opens new window)	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() (opens new window)	Returns the directory that stores vendor files.
getVersion() (opens new window)	Returns current module version.
getView()	Returns the view component.
getViewPath() (opens new window)	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() (opens new window)	Returns a value indicating whether the locator has the specified component definition or has instantiated the component.
hasEventHandlers() (opens new window)	Returns a value indicating whether there is any handler attached to the named event.
hasMethod() (opens new window)	Returns a value indicating whether a method is defined.
hasModule() (opens new window)	Checks whether the child module of the specified ID exists.
hasProperty() (opens new window)	Returns a value indicating whether a property is defined for this component.
init()	Initializes the application.
off() (opens new window)	Detaches an existing event handler from this component.
on() (opens new window)	Attaches an event handler to an event.
onInit()	Invokes a callback method when Craft is fully initialized.
preInit() (opens new window)	Pre-initializes the application.
requireEdition()	Requires that Craft is running an equal or better edition than what's passed in
run() (opens new window)	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() (opens new window)	Registers a component definition with this locator.
setAliases() (opens new window)	Defines path aliases.
setBasePath() (opens new window)	Sets the root directory of the application and the @app alias.
setComponents() (opens new window)	Registers a set of component definitions in this locator.
setContainer() (opens new window)	Configures Yii::$container with the $config.
setControllerPath() (opens new window)	Sets the directory that contains the controller classes.
setEdition()	Sets the Craft edition.
setHomeUrl() (opens new window)
setInstance() (opens new window)	Sets the currently requested instance of this module class.
setIsInstalled()	Sets Craft's record of whether it's installed
setLayoutPath() (opens new window)	Sets the directory that contains the layout files.
setModule() (opens new window)	Adds a sub-module to this module.
setModules() (opens new window)	Registers sub-modules in the current module.
setRuntimePath() (opens new window)	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() (opens new window)	Sets current module version.
setViewPath() (opens new window)	Sets the directory that contains the view files.
trigger() (opens new window)	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.

View source (opens new window)

end()

Terminates the application.

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

View source (opens new window)

Arguments

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

Throws

• yii\base\ExitException (opens new window)
  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 (opens new window)

Arguments

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

Returns

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

Throws

• yii\base\InvalidConfigException (opens new window)
  if $id refers to a nonexistent component ID

getRequest()

Returns the request component.

View source (opens new window)

Returns

craft\web\Request –

getResponse()

Returns the response component.

View source (opens new window)

Returns

craft\web\Response –

getSession()

Returns the session component.

View source (opens new window)

Returns

craft\web\Session –

getUrlManager()

Returns the URL manager for this application.

View source (opens new window)

Returns

craft\web\UrlManager –

getUser()

Returns the user component.

View source (opens new window)

Returns

craft\web\User –

handleRequest()

Handles the specified request.

View source (opens new window)

Arguments

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

Returns

yii\web\Response (opens new window) – The resulting response

Throws

• Throwable (opens new window)
  if reasons

init()

Initializes the application.

View source (opens new window)

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() (opens new window) to run the action with the given parameters. If the route is empty, the method will use defaultRoute (opens new window).

View source (opens new window)

Arguments

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

Returns

yii\web\Response (opens new window), null (opens new window) – The result of the action, normalized into a Response object

Throws

• yii\base\InvalidRouteException (opens new window)
  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 (opens new window) for available timezones.

View source (opens new window)

Arguments

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

Protected Methods

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

authenticate()

Since

3.5.0

Authenticates the request.

View source (opens new window)

Throws

• yii\web\UnauthorizedHttpException (opens new window)

debugBootstrap()

Bootstraps the Debug Toolbar if necessary.

View source (opens new window)

ensureResourcePathExists()

Ensures that the resources folder exists and is writable.

View source (opens new window)

Throws

• yii\base\ErrorException (opens new window)
• yii\base\InvalidConfigException (opens new window)
• yii\base\Exception (opens new window)

Constants

Constant	Description
STATE_AFTER_REQUEST	Application state used by state (opens new window): application is triggering EVENT_AFTER_REQUEST (opens new window).
STATE_BEFORE_REQUEST	Application state used by state (opens new window): application is triggering EVENT_BEFORE_REQUEST (opens new window).
STATE_BEGIN	Application state used by state (opens new window): application just started.
STATE_END	Application state used by state (opens new window): application has ended.
STATE_HANDLING_REQUEST	Application state used by state (opens new window): application is handling the request.
STATE_INIT	Application state used by state (opens new window): application is initializing.
STATE_SENDING_RESPONSE	Application state used by state (opens new window): 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 (opens new window)

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() {
    // ...
});