Abstract Class yii\base\Application
Inheritance | yii\base\Application » yii\base\Module » yii\di\ServiceLocator » yii\base\Component » yii\base\BaseObject |
---|---|
Implements | yii\base\Configurable |
Subclasses | yii\console\Application, yii\web\Application |
Available since version | 2.0 |
Source Code | https://github.com/yiisoft/yii2/blob/master/framework/base/Application.php |
Application is the base class for all application classes.
For more details and usage information on Application, see the guide article on applications.
Public Properties
Property | Type | Description | Defined By |
---|---|---|---|
$aliases | array | List of path aliases to be defined. | yii\base\Module |
$assetManager | yii\web\AssetManager | The asset manager application component. | yii\base\Application |
$authManager | yii\rbac\ManagerInterface|null | The auth manager application component or null if it's not configured. | yii\base\Application |
$basePath | string | The root directory of the application. | yii\base\Application |
$behaviors | yii\base\Behavior[] | List of behaviors attached to this component. | yii\base\Component |
$bootstrap | array | List of components that should be run during the application bootstrapping process. | yii\base\Application |
$cache | yii\caching\CacheInterface|null | The cache application component. | yii\base\Application |
$charset | string | The charset currently used for the application. | yii\base\Application |
$components | array | The list of the component definitions or the loaded component instances (ID => definition or instance). | yii\di\ServiceLocator |
$container | array | Values given in terms of name-value pairs. | yii\base\Application |
$controller | yii\base\Controller | The currently active controller instance | yii\base\Application |
$controllerMap | array | Mapping from controller ID to controller configurations. | yii\base\Module |
$controllerNamespace | string | The namespace that controller classes are located in. | yii\base\Application |
$controllerPath | string | The directory that contains the controller classes. | yii\base\Module |
$db | yii\db\Connection | The database connection. | yii\base\Application |
$defaultRoute | string | The default route of this module. | yii\base\Module |
$errorHandler | yii\web\ErrorHandler|yii\console\ErrorHandler | The error handler application component. | yii\base\Application |
$extensions | array|null | List of installed Yii extensions. | yii\base\Application |
$formatter | yii\i18n\Formatter | The formatter application component. | yii\base\Application |
$i18n | yii\i18n\I18N | The internationalization application component. | yii\base\Application |
$id | string | An ID that uniquely identifies this module among other modules which have the same parent. | yii\base\Module |
$language | string | The language that is meant to be used for end users. | yii\base\Application |
$layout | string|boolean | The layout that should be applied for views in this application. | yii\base\Application |
$layoutPath | string | The root directory of layout files. | yii\base\Module |
$loadedModules | array | List of loaded modules indexed by their class names. | yii\base\Application |
$log | yii\log\Dispatcher | The log dispatcher application component. | yii\base\Application |
$mailer | yii\mail\MailerInterface | The mailer application component. | yii\base\Application |
$module | yii\base\Module|null | The parent module of this module. | yii\base\Module |
$modules | array | The modules (indexed by their IDs). | yii\base\Module |
$name | string | The application name. | yii\base\Application |
$params | array | Custom module parameters (name => value). | yii\base\Module |
$request | yii\web\Request|yii\console\Request | The request component. | yii\base\Application |
$requestedAction | yii\base\Action|null | The requested Action. | yii\base\Application |
$requestedParams | array | The parameters supplied to the requested action. | yii\base\Application |
$requestedRoute | string | The requested route | yii\base\Application |
$response | yii\web\Response|yii\console\Response | The response component. | yii\base\Application |
$runtimePath | string | The directory that stores runtime files. | yii\base\Application |
$security | yii\base\Security | The security application component. | yii\base\Application |
$sourceLanguage | string | The language that the application is written in. | yii\base\Application |
$state | integer | The current application state during a request handling life cycle. | yii\base\Application |
$timeZone | string | The time zone used by this application. | yii\base\Application |
$uniqueId | string | The unique ID of the module. | yii\base\Application |
$urlManager | yii\web\UrlManager | The URL manager for this application. | yii\base\Application |
$vendorPath | string | The directory that stores vendor files. | yii\base\Application |
$version | string | The version of this module. | yii\base\Module |
$view | yii\base\View|yii\web\View | The view application component that is used to render various view files. | yii\base\Application |
$viewPath | string | The root directory of view files. | yii\base\Module |
Public Methods
Method | Description | Defined By |
---|---|---|
__call() | Calls the named method which is not a class method. | yii\base\Component |
__clone() | This method is called after the object is created by cloning an existing one. | yii\base\Component |
__construct() | Constructor. | yii\base\Application |
__get() | Getter magic method. | yii\di\ServiceLocator |
__isset() | Checks if a property value is null. | yii\di\ServiceLocator |
__set() | Sets the value of a component property. | yii\base\Component |
__unset() | Sets a component property to be null. | yii\base\Component |
afterAction() | This method is invoked right after an action within this module is executed. | yii\base\Module |
attachBehavior() | Attaches a behavior to this component. | yii\base\Component |
attachBehaviors() | Attaches a list of behaviors to the component. | yii\base\Component |
beforeAction() | This method is invoked right before an action within this module is executed. | yii\base\Module |
behaviors() | Returns a list of behaviors that this component should behave as. | yii\base\Component |
canGetProperty() | Returns a value indicating whether a property can be read. | yii\base\Component |
canSetProperty() | Returns a value indicating whether a property can be set. | yii\base\Component |
className() | Returns the fully qualified name of this class. | yii\base\BaseObject |
clear() | Removes the component from the locator. | yii\di\ServiceLocator |
coreComponents() | Returns the configuration of core application components. | yii\base\Application |
createController() | Creates a controller instance based on the given route. | yii\base\Module |
createControllerByID() | Creates a controller based on the given controller ID. | yii\base\Module |
detachBehavior() | Detaches a behavior from the component. | yii\base\Component |
detachBehaviors() | Detaches all behaviors from the component. | yii\base\Component |
end() | Terminates the application. | yii\base\Application |
ensureBehaviors() | Makes sure that the behaviors declared in behaviors() are attached to this component. | yii\base\Component |
get() | Returns the component instance with the specified ID. | yii\base\Module |
getAssetManager() | Returns the asset manager. | yii\base\Application |
getAuthManager() | Returns the auth manager for this application. | yii\base\Application |
getBasePath() | Returns the root directory of the module. | yii\base\Module |
getBehavior() | Returns the named behavior object. | yii\base\Component |
getBehaviors() | Returns all behaviors attached to this component. | yii\base\Component |
getCache() | Returns the cache component. | yii\base\Application |
getComponents() | Returns the list of the component definitions or the loaded component instances. | yii\di\ServiceLocator |
getControllerPath() | Returns the directory that contains the controller classes according to $controllerNamespace. | yii\base\Module |
getDb() | Returns the database connection component. | yii\base\Application |
getErrorHandler() | Returns the error handler component. | yii\base\Application |
getFormatter() | Returns the formatter component. | yii\base\Application |
getI18n() | Returns the internationalization (i18n) component. | yii\base\Application |
getInstance() | Returns the currently requested instance of this module class. | yii\base\Module |
getLayoutPath() | Returns the directory that contains layout view files for this module. | yii\base\Module |
getLog() | Returns the log dispatcher component. | yii\base\Application |
getMailer() | Returns the mailer component. | yii\base\Application |
getModule() | Retrieves the child module of the specified ID. | yii\base\Module |
getModules() | Returns the sub-modules in this module. | yii\base\Module |
getRequest() | Returns the request component. | yii\base\Application |
getResponse() | Returns the response component. | yii\base\Application |
getRuntimePath() | Returns the directory that stores runtime files. | yii\base\Application |
getSecurity() | Returns the security component. | yii\base\Application |
getTimeZone() | Returns the time zone used by this application. | yii\base\Application |
getUniqueId() | Returns an ID that uniquely identifies this module among all modules within the current application. | yii\base\Application |
getUrlManager() | Returns the URL manager for this application. | yii\base\Application |
getVendorPath() | Returns the directory that stores vendor files. | yii\base\Application |
getVersion() | Returns current module version. | yii\base\Module |
getView() | Returns the view object. | yii\base\Application |
getViewPath() | Returns the directory that contains the view files for this module. | yii\base\Module |
handleRequest() | Handles the specified request. | yii\base\Application |
has() | Returns a value indicating whether the locator has the specified component definition or has instantiated the component. | yii\base\Module |
hasEventHandlers() | Returns a value indicating whether there is any handler attached to the named event. | yii\base\Component |
hasMethod() | Returns a value indicating whether a method is defined. | yii\base\Component |
hasModule() | Checks whether the child module of the specified ID exists. | yii\base\Module |
hasProperty() | Returns a value indicating whether a property is defined for this component. | yii\base\Component |
init() | Initializes the module. | yii\base\Application |
off() | Detaches an existing event handler from this component. | yii\base\Component |
on() | Attaches an event handler to an event. | yii\base\Component |
preInit() | Pre-initializes the application. | yii\base\Application |
run() | Runs the application. | yii\base\Application |
runAction() | Runs a controller action specified by a route. | yii\base\Module |
set() | Registers a component definition with this locator. | yii\di\ServiceLocator |
setAliases() | Defines path aliases. | yii\base\Module |
setBasePath() | Sets the root directory of the application and the @app alias. | yii\base\Application |
setComponents() | Registers a set of component definitions in this locator. | yii\di\ServiceLocator |
setContainer() | Configures Yii::$container with the $config. | yii\base\Application |
setControllerPath() | Sets the directory that contains the controller classes. | yii\base\Module |
setInstance() | Sets the currently requested instance of this module class. | yii\base\Module |
setLayoutPath() | Sets the directory that contains the layout files. | yii\base\Module |
setModule() | Adds a sub-module to this module. | yii\base\Module |
setModules() | Registers sub-modules in the current module. | yii\base\Module |
setRuntimePath() | Sets the directory that stores runtime files. | yii\base\Application |
setTimeZone() | Sets the time zone used by this application. | yii\base\Application |
setVendorPath() | Sets the directory that stores vendor files. | yii\base\Application |
setVersion() | Sets current module version. | yii\base\Module |
setViewPath() | Sets the directory that contains the view files. | yii\base\Module |
trigger() | Triggers an event. | yii\base\Component |
Protected Methods
Method | Description | Defined By |
---|---|---|
bootstrap() | Initializes extensions and executes bootstrap components. | yii\base\Application |
defaultVersion() | Returns default module version. | yii\base\Module |
registerErrorHandler() | Registers the errorHandler component as a PHP error handler. | yii\base\Application |
Events
Event | Type | Description | Defined By |
---|---|---|---|
EVENT_AFTER_ACTION | yii\base\ActionEvent | An event raised after executing a controller action. | yii\base\Module |
EVENT_AFTER_REQUEST | yii\base\Event | An event raised after the application successfully handles a request (before the response is sent out). | yii\base\Application |
EVENT_BEFORE_ACTION | yii\base\ActionEvent | An event raised before executing a controller action. | yii\base\Module |
EVENT_BEFORE_REQUEST | yii\base\Event | An event raised before the application starts to handle a request. | yii\base\Application |
Constants
Constant | Value | Description | Defined By |
---|---|---|---|
STATE_AFTER_REQUEST | 4 | Application state used by $state: application is triggering EVENT_AFTER_REQUEST. . | yii\base\Application |
STATE_BEFORE_REQUEST | 2 | Application state used by $state: application is triggering EVENT_BEFORE_REQUEST. | yii\base\Application |
STATE_BEGIN | 0 | Application state used by $state: application just started. | yii\base\Application |
STATE_END | 6 | Application state used by $state: application has ended. | yii\base\Application |
STATE_HANDLING_REQUEST | 3 | Application state used by $state: application is handling the request. | yii\base\Application |
STATE_INIT | 1 | Application state used by $state: application is initializing. | yii\base\Application |
STATE_SENDING_RESPONSE | 5 | Application state used by $state: application is about to send response. | yii\base\Application |
Property Details
The asset manager application component.
The auth manager application component or null if it's not configured.
List of components that should be run during the application bootstrapping process.
Each component may be specified in one of the following formats:
- an application component ID as specified via $components.
- a module ID as specified via $modules.
- a class name.
- a configuration array.
- a Closure
During the bootstrapping process, each component will be instantiated. If the component class implements yii\base\BootstrapInterface, its bootstrap() method will be also be called.
The cache application component. Null if the component is not enabled.
The charset currently used for the application.
Values given in terms of name-value pairs.
The currently active controller instance
The namespace that controller classes are located in.
This namespace will be used to load controller classes by prepending it to the controller class name.
The default namespace is app\controllers
.
Please refer to the guide about class autoloading for more details.
The error handler application component.
List of installed Yii extensions. Each array element represents a single extension with the following structure:
[
'name' => 'extension name',
'version' => 'version number',
'bootstrap' => 'BootstrapClassName', // optional, may also be a configuration array
'alias' => [
'@alias1' => 'to/path1',
'@alias2' => 'to/path2',
],
]
The "bootstrap" class listed above will be instantiated during the application bootstrapping process. If the class implements yii\base\BootstrapInterface, its bootstrap() method will be also be called.
If not set explicitly in the application config, this property will be populated with the contents of
@vendor/yiisoft/extensions.php
.
The formatter application component.
The internationalization application component.
The language that is meant to be used for end users. It is recommended that you
use IETF language tags. For example, en
stands
for English, while en-US
stands for English (United States).
See also $sourceLanguage.
The layout that should be applied for views in this application. Defaults to 'main'. If this is false, layout will be disabled.
List of loaded modules indexed by their class names.
The log dispatcher application component.
The mailer application component.
The request component.
The requested Action. If null, it means the request cannot be resolved into an action.
The parameters supplied to the requested action.
The response component.
The directory that stores runtime files. Defaults to the "runtime" subdirectory under $basePath.
The security application component.
The language that the application is written in. This mainly refers to the language that the messages and view files are written in.
See also $language.
The current application state during a request handling life cycle. This property is managed by the application. Do not modify this property.
The URL manager for this application.
The directory that stores vendor files. Defaults to "vendor" directory under $basePath.
The view application component that is used to render various view files.
Method Details
Defined in: yii\base\Component::__call()
Calls the named method which is not a class method.
This method will check if any attached behavior has the named method and will execute it if available.
Do not call this method directly as it is a PHP magic method that will be implicitly called when an unknown method is being invoked.
public mixed __call ( $name, $params ) | ||
$name | string |
The method name |
$params | array |
Method parameters |
return | mixed |
The method return value |
---|---|---|
throws | yii\base\UnknownMethodException |
when calling unknown method |
public function __call($name, $params)
{
$this->ensureBehaviors();
foreach ($this->_behaviors as $object) {
if ($object->hasMethod($name)) {
return call_user_func_array([$object, $name], $params);
}
}
throw new UnknownMethodException('Calling unknown method: ' . get_class($this) . "::$name()");
}
Defined in: yii\base\Component::__clone()
This method is called after the object is created by cloning an existing one.
It removes all behaviors because they are attached to the old object.
public void __clone ( ) |
public function __clone()
{
$this->_events = [];
$this->_eventWildcards = [];
$this->_behaviors = null;
}
Constructor.
public void __construct ( $config = [] ) | ||
$config | array |
Name-value pairs that will be used to initialize the object properties. Note that the configuration must contain both $id and $basePath. |
throws | yii\base\InvalidConfigException |
---|
public function __construct($config = [])
{
Yii::$app = $this;
static::setInstance($this);
$this->state = self::STATE_BEGIN;
$this->preInit($config);
$this->registerErrorHandler($config);
Component::__construct($config);
}
Defined in: yii\di\ServiceLocator::__get()
Getter magic method.
This method is overridden to support accessing components like reading properties.
public mixed __get ( $name ) | ||
$name | string |
Component or property name |
return | mixed |
The named property value |
---|
public function __get($name)
{
if ($this->has($name)) {
return $this->get($name);
}
return parent::__get($name);
}
Defined in: yii\di\ServiceLocator::__isset()
Checks if a property value is null.
This method overrides the parent implementation by checking if the named component is loaded.
public boolean __isset ( $name ) | ||
$name | string |
The property name or the event name |
return | boolean |
Whether the property value is null |
---|
public function __isset($name)
{
if ($this->has($name)) {
return true;
}
return parent::__isset($name);
}
Defined in: yii\base\Component::__set()
Sets the value of a component property.
This method will check in the following order and act accordingly:
- a property defined by a setter: set the property value
- an event in the format of "on xyz": attach the handler to the event "xyz"
- a behavior in the format of "as xyz": attach the behavior named as "xyz"
- a property of a behavior: set the behavior property value
Do not call this method directly as it is a PHP magic method that
will be implicitly called when executing $component->property = $value;
.
See also __get().
public void __set ( $name, $value ) | ||
$name | string |
The property name or the event name |
$value | mixed |
The property value |
throws | yii\base\UnknownPropertyException |
if the property is not defined |
---|---|---|
throws | yii\base\InvalidCallException |
if the property is read-only. |
public function __set($name, $value)
{
$setter = 'set' . $name;
if (method_exists($this, $setter)) {
// set property
$this->$setter($value);
return;
} elseif (strncmp($name, 'on ', 3) === 0) {
// on event: attach event handler
$this->on(trim(substr($name, 3)), $value);
return;
} elseif (strncmp($name, 'as ', 3) === 0) {
// as behavior: attach behavior
$name = trim(substr($name, 3));
$this->attachBehavior($name, $value instanceof Behavior ? $value : Yii::createObject($value));
return;
}
// behavior property
$this->ensureBehaviors();
foreach ($this->_behaviors as $behavior) {
if ($behavior->canSetProperty($name)) {
$behavior->$name = $value;
return;
}
}
if (method_exists($this, 'get' . $name)) {
throw new InvalidCallException('Setting read-only property: ' . get_class($this) . '::' . $name);
}
throw new UnknownPropertyException('Setting unknown property: ' . get_class($this) . '::' . $name);
}
Defined in: yii\base\Component::__unset()
Sets a component property to be null.
This method will check in the following order and act accordingly:
- a property defined by a setter: set the property value to be null
- a property of a behavior: set the property value to be null
Do not call this method directly as it is a PHP magic method that
will be implicitly called when executing unset($component->property)
.
public void __unset ( $name ) | ||
$name | string |
The property name |
throws | yii\base\InvalidCallException |
if the property is read only. |
---|
public function __unset($name)
{
$setter = 'set' . $name;
if (method_exists($this, $setter)) {
$this->$setter(null);
return;
}
// behavior property
$this->ensureBehaviors();
foreach ($this->_behaviors as $behavior) {
if ($behavior->canSetProperty($name)) {
$behavior->$name = null;
return;
}
}
throw new InvalidCallException('Unsetting an unknown or read-only property: ' . get_class($this) . '::' . $name);
}
Defined in: yii\base\Module::afterAction()
This method is invoked right after an action within this module is executed.
The method will trigger the EVENT_AFTER_ACTION event. The return value of the method will be used as the action return value.
If you override this method, your code should look like the following:
public function afterAction($action, $result)
{
$result = parent::afterAction($action, $result);
// your custom code here
return $result;
}
public mixed afterAction ( $action, $result ) | ||
$action | yii\base\Action |
The action just executed. |
$result | mixed |
The action return result. |
return | mixed |
The processed action result. |
---|
public function afterAction($action, $result)
{
$event = new ActionEvent($action);
$event->result = $result;
$this->trigger(self::EVENT_AFTER_ACTION, $event);
return $event->result;
}
Defined in: yii\base\Component::attachBehavior()
Attaches a behavior to this component.
This method will create the behavior object based on the given configuration. After that, the behavior object will be attached to this component by calling the yii\base\Behavior::attach() method.
See also detachBehavior().
public yii\base\Behavior attachBehavior ( $name, $behavior ) | ||
$name | string |
The name of the behavior. |
$behavior | string|array|yii\base\Behavior |
The behavior configuration. This can be one of the following:
|
return | yii\base\Behavior |
The behavior object |
---|
public function attachBehavior($name, $behavior)
{
$this->ensureBehaviors();
return $this->attachBehaviorInternal($name, $behavior);
}
Defined in: yii\base\Component::attachBehaviors()
Attaches a list of behaviors to the component.
Each behavior is indexed by its name and should be a yii\base\Behavior object, a string specifying the behavior class, or an configuration array for creating the behavior.
See also attachBehavior().
public void attachBehaviors ( $behaviors ) | ||
$behaviors | array |
List of behaviors to be attached to the component |
public function attachBehaviors($behaviors)
{
$this->ensureBehaviors();
foreach ($behaviors as $name => $behavior) {
$this->attachBehaviorInternal($name, $behavior);
}
}
Defined in: yii\base\Module::beforeAction()
This method is invoked right before an action within this module is executed.
The method will trigger the EVENT_BEFORE_ACTION event. The return value of the method will determine whether the action should continue to run.
In case the action should not run, the request should be handled inside of the beforeAction
code
by either providing the necessary output or redirecting the request. Otherwise the response will be empty.
If you override this method, your code should look like the following:
public function beforeAction($action)
{
if (!parent::beforeAction($action)) {
return false;
}
// your custom code here
return true; // or false to not run the action
}
public boolean beforeAction ( $action ) | ||
$action | yii\base\Action |
The action to be executed. |
return | boolean |
Whether the action should continue to be executed. |
---|
public function beforeAction($action)
{
$event = new ActionEvent($action);
$this->trigger(self::EVENT_BEFORE_ACTION, $event);
return $event->isValid;
}
Defined in: yii\base\Component::behaviors()
Returns a list of behaviors that this component should behave as.
Child classes may override this method to specify the behaviors they want to behave as.
The return value of this method should be an array of behavior objects or configurations indexed by behavior names. A behavior configuration can be either a string specifying the behavior class or an array of the following structure:
'behaviorName' => [
'class' => 'BehaviorClass',
'property1' => 'value1',
'property2' => 'value2',
]
Note that a behavior class must extend from yii\base\Behavior. Behaviors can be attached using a name or anonymously. When a name is used as the array key, using this name, the behavior can later be retrieved using getBehavior() or be detached using detachBehavior(). Anonymous behaviors can not be retrieved or detached.
Behaviors declared in this method will be attached to the component automatically (on demand).
public array behaviors ( ) | ||
return | array |
The behavior configurations. |
---|
public function behaviors()
{
return [];
}
Initializes extensions and executes bootstrap components.
This method is called by init() after the application has been fully configured. If you override this method, make sure you also call the parent implementation.
protected void bootstrap ( ) |
protected function bootstrap()
{
if ($this->extensions === null) {
$file = Yii::getAlias('@vendor/yiisoft/extensions.php');
$this->extensions = is_file($file) ? include $file : [];
}
foreach ($this->extensions as $extension) {
if (!empty($extension['alias'])) {
foreach ($extension['alias'] as $name => $path) {
Yii::setAlias($name, $path);
}
}
if (isset($extension['bootstrap'])) {
$component = Yii::createObject($extension['bootstrap']);
if ($component instanceof BootstrapInterface) {
Yii::debug('Bootstrap with ' . get_class($component) . '::bootstrap()', __METHOD__);
$component->bootstrap($this);
} else {
Yii::debug('Bootstrap with ' . get_class($component), __METHOD__);
}
}
}
foreach ($this->bootstrap as $mixed) {
$component = null;
if ($mixed instanceof \Closure) {
Yii::debug('Bootstrap with Closure', __METHOD__);
if (!$component = call_user_func($mixed, $this)) {
continue;
}
} elseif (is_string($mixed)) {
if ($this->has($mixed)) {
$component = $this->get($mixed);
} elseif ($this->hasModule($mixed)) {
$component = $this->getModule($mixed);
} elseif (strpos($mixed, '\\') === false) {
throw new InvalidConfigException("Unknown bootstrapping component ID: $mixed");
}
}
if (!isset($component)) {
$component = Yii::createObject($mixed);
}
if ($component instanceof BootstrapInterface) {
Yii::debug('Bootstrap with ' . get_class($component) . '::bootstrap()', __METHOD__);
$component->bootstrap($this);
} else {
Yii::debug('Bootstrap with ' . get_class($component), __METHOD__);
}
}
}
Defined in: yii\base\Component::canGetProperty()
Returns a value indicating whether a property can be read.
A property can be read if:
- the class has a getter method associated with the specified name (in this case, property name is case-insensitive);
- the class has a member variable with the specified name (when
$checkVars
is true); - an attached behavior has a readable property of the given name (when
$checkBehaviors
is true).
See also canSetProperty().
public boolean canGetProperty ( $name, $checkVars = true, $checkBehaviors = true ) | ||
$name | string |
The property name |
$checkVars | boolean |
Whether to treat member variables as properties |
$checkBehaviors | boolean |
Whether to treat behaviors' properties as properties of this component |
return | boolean |
Whether the property can be read |
---|
public function canGetProperty($name, $checkVars = true, $checkBehaviors = true)
{
if (method_exists($this, 'get' . $name) || $checkVars && property_exists($this, $name)) {
return true;
} elseif ($checkBehaviors) {
$this->ensureBehaviors();
foreach ($this->_behaviors as $behavior) {
if ($behavior->canGetProperty($name, $checkVars)) {
return true;
}
}
}
return false;
}
Defined in: yii\base\Component::canSetProperty()
Returns a value indicating whether a property can be set.
A property can be written if:
- the class has a setter method associated with the specified name (in this case, property name is case-insensitive);
- the class has a member variable with the specified name (when
$checkVars
is true); - an attached behavior has a writable property of the given name (when
$checkBehaviors
is true).
See also canGetProperty().
public boolean canSetProperty ( $name, $checkVars = true, $checkBehaviors = true ) | ||
$name | string |
The property name |
$checkVars | boolean |
Whether to treat member variables as properties |
$checkBehaviors | boolean |
Whether to treat behaviors' properties as properties of this component |
return | boolean |
Whether the property can be written |
---|
public function canSetProperty($name, $checkVars = true, $checkBehaviors = true)
{
if (method_exists($this, 'set' . $name) || $checkVars && property_exists($this, $name)) {
return true;
} elseif ($checkBehaviors) {
$this->ensureBehaviors();
foreach ($this->_behaviors as $behavior) {
if ($behavior->canSetProperty($name, $checkVars)) {
return true;
}
}
}
return false;
}
::class
instead.
Defined in: yii\base\BaseObject::className()
Returns the fully qualified name of this class.
public static string className ( ) | ||
return | string |
The fully qualified name of this class. |
---|
public static function className()
{
return get_called_class();
}
Defined in: yii\di\ServiceLocator::clear()
Removes the component from the locator.
public void clear ( $id ) | ||
$id | string |
The component ID |
public function clear($id)
{
unset($this->_definitions[$id], $this->_components[$id]);
}
Returns the configuration of core application components.
See also set().
public array coreComponents ( ) |
public function coreComponents()
{
$components = [
'log' => ['class' => 'yii\log\Dispatcher'],
'view' => ['class' => 'yii\web\View'],
'formatter' => ['class' => 'yii\i18n\Formatter'],
'i18n' => ['class' => 'yii\i18n\I18N'],
'urlManager' => ['class' => 'yii\web\UrlManager'],
'assetManager' => ['class' => 'yii\web\AssetManager'],
'security' => ['class' => 'yii\base\Security'],
];
if (class_exists('yii\swiftmailer\Mailer')) {
$components['mailer'] = ['class' => 'yii\swiftmailer\Mailer'];
}
return $components;
}
Defined in: yii\base\Module::createController()
Creates a controller instance based on the given route.
The route should be relative to this module. The method implements the following algorithm to resolve the given route:
- If the route is empty, use $defaultRoute;
- If the first segment of the route is found in $controllerMap, create a controller based on the corresponding configuration found in $controllerMap;
- If the first segment of the route is a valid module ID as declared in $modules,
call the module's
createController()
with the rest part of the route; - The given route is in the format of
abc/def/xyz
. Try eitherabc\DefController
orabc\def\XyzController
class within the controller namespace.
If any of the above steps resolves into a controller, it is returned together with the rest
part of the route which will be treated as the action ID. Otherwise, false
will be returned.
public array|boolean createController ( $route ) | ||
$route | string |
The route consisting of module, controller and action IDs. |
return | array|boolean |
If the controller is created successfully, it will be returned together
with the requested action ID. Otherwise |
---|---|---|
throws | yii\base\InvalidConfigException |
if the controller class and its file do not match. |
public function createController($route)
{
if ($route === '') {
$route = $this->defaultRoute;
}
// double slashes or leading/ending slashes may cause substr problem
$route = trim($route, '/');
if (strpos($route, '//') !== false) {
return false;
}
if (strpos($route, '/') !== false) {
list($id, $route) = explode('/', $route, 2);
} else {
$id = $route;
$route = '';
}
// module and controller map take precedence
if (isset($this->controllerMap[$id])) {
$controller = Yii::createObject($this->controllerMap[$id], [$id, $this]);
return [$controller, $route];
}
$module = $this->getModule($id);
if ($module !== null) {
return $module->createController($route);
}
if (($pos = strrpos($route, '/')) !== false) {
$id .= '/' . substr($route, 0, $pos);
$route = substr($route, $pos + 1);
}
$controller = $this->createControllerByID($id);
if ($controller === null && $route !== '') {
$controller = $this->createControllerByID($id . '/' . $route);
$route = '';
}
return $controller === null ? false : [$controller, $route];
}
Defined in: yii\base\Module::createControllerByID()
Creates a controller based on the given controller ID.
The controller ID is relative to this module. The controller class should be namespaced under $controllerNamespace.
Note that this method does not check $modules or $controllerMap.
public yii\base\Controller|null createControllerByID ( $id ) | ||
$id | string |
The controller ID. |
return | yii\base\Controller|null |
The newly created controller instance, or |
---|---|---|
throws | yii\base\InvalidConfigException |
if the controller class and its file name do not match. This exception is only thrown when in debug mode. |
public function createControllerByID($id)
{
$pos = strrpos($id, '/');
if ($pos === false) {
$prefix = '';
$className = $id;
} else {
$prefix = substr($id, 0, $pos + 1);
$className = substr($id, $pos + 1);
}
if ($this->isIncorrectClassNameOrPrefix($className, $prefix)) {
return null;
}
$className = preg_replace_callback('%-([a-z0-9_])%i', function ($matches) {
return ucfirst($matches[1]);
}, ucfirst($className)) . 'Controller';
$className = ltrim($this->controllerNamespace . '\\' . str_replace('/', '\\', $prefix) . $className, '\\');
if (strpos($className, '-') !== false || !class_exists($className)) {
return null;
}
if (is_subclass_of($className, 'yii\base\Controller')) {
$controller = Yii::createObject($className, [$id, $this]);
return get_class($controller) === $className ? $controller : null;
} elseif (YII_DEBUG) {
throw new InvalidConfigException('Controller class must extend from \\yii\\base\\Controller.');
}
return null;
}
Defined in: yii\base\Module::defaultVersion()
Returns default module version.
Child class may override this method to provide more specific version detection.
protected string defaultVersion ( ) | ||
return | string |
The version of this module. |
---|
protected function defaultVersion()
{
if ($this->module === null) {
return '1.0';
}
return $this->module->getVersion();
}
Defined in: yii\base\Component::detachBehavior()
Detaches a behavior from the component.
The behavior's yii\base\Behavior::detach() method will be invoked.
public yii\base\Behavior|null detachBehavior ( $name ) | ||
$name | string |
The behavior's name. |
return | yii\base\Behavior|null |
The detached behavior. Null if the behavior does not exist. |
---|
public function detachBehavior($name)
{
$this->ensureBehaviors();
if (isset($this->_behaviors[$name])) {
$behavior = $this->_behaviors[$name];
unset($this->_behaviors[$name]);
$behavior->detach();
return $behavior;
}
return null;
}
Defined in: yii\base\Component::detachBehaviors()
Detaches all behaviors from the component.
public void detachBehaviors ( ) |
public function detachBehaviors()
{
$this->ensureBehaviors();
foreach ($this->_behaviors as $name => $behavior) {
$this->detachBehavior($name);
}
}
Terminates the application.
This method replaces the exit()
function by ensuring the application life cycle is completed
before terminating the application.
public void end ( $status = 0, $response = null ) | ||
$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 $response component will be used. |
throws | yii\base\ExitException |
if the application is in testing mode |
---|
public function end($status = 0, $response = null)
{
if ($this->state === self::STATE_BEFORE_REQUEST || $this->state === self::STATE_HANDLING_REQUEST) {
$this->state = self::STATE_AFTER_REQUEST;
$this->trigger(self::EVENT_AFTER_REQUEST);
}
if ($this->state !== self::STATE_SENDING_RESPONSE && $this->state !== self::STATE_END) {
$this->state = self::STATE_END;
$response = $response ?: $this->getResponse();
$response->send();
}
if (YII_ENV_TEST) {
throw new ExitException($status);
}
exit($status);
}
Defined in: yii\base\Component::ensureBehaviors()
Makes sure that the behaviors declared in behaviors() are attached to this component.
public void ensureBehaviors ( ) |
public function ensureBehaviors()
{
if ($this->_behaviors === null) {
$this->_behaviors = [];
foreach ($this->behaviors() as $name => $behavior) {
$this->attachBehaviorInternal($name, $behavior);
}
}
}
Defined in: yii\base\Module::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.
public object|null get ( $id, $throwException = true ) | ||
$id | string |
Component ID (e.g. |
$throwException | boolean |
Whether to throw an exception if |
return | object|null |
The component of the specified ID. If |
---|---|---|
throws | yii\base\InvalidConfigException |
if |
public function get($id, $throwException = true)
{
if (!isset($this->module)) {
return parent::get($id, $throwException);
}
$component = parent::get($id, false);
if ($component === null) {
$component = $this->module->get($id, $throwException);
}
return $component;
}
Returns the asset manager.
public yii\web\AssetManager getAssetManager ( ) | ||
return | yii\web\AssetManager |
The asset manager application component. |
---|
public function getAssetManager()
{
return $this->get('assetManager');
}
Returns the auth manager for this application.
public yii\rbac\ManagerInterface|null getAuthManager ( ) | ||
return | yii\rbac\ManagerInterface|null |
The auth manager application component or null if it's not configured. |
---|
public function getAuthManager()
{
return $this->get('authManager', false);
}
Defined in: yii\base\Module::getBasePath()
Returns the root directory of the module.
It defaults to the directory containing the module class file.
public string getBasePath ( ) | ||
return | string |
The root directory of the module. |
---|
public function getBasePath()
{
if ($this->_basePath === null) {
$class = new \ReflectionClass($this);
$this->_basePath = dirname($class->getFileName());
}
return $this->_basePath;
}
Defined in: yii\base\Component::getBehavior()
Returns the named behavior object.
public yii\base\Behavior|null getBehavior ( $name ) | ||
$name | string |
The behavior name |
return | yii\base\Behavior|null |
The behavior object, or null if the behavior does not exist |
---|
public function getBehavior($name)
{
$this->ensureBehaviors();
return isset($this->_behaviors[$name]) ? $this->_behaviors[$name] : null;
}
Defined in: yii\base\Component::getBehaviors()
Returns all behaviors attached to this component.
public yii\base\Behavior[] getBehaviors ( ) | ||
return | yii\base\Behavior[] |
List of behaviors attached to this component |
---|
public function getBehaviors()
{
$this->ensureBehaviors();
return $this->_behaviors;
}
Returns the cache component.
public yii\caching\CacheInterface|null getCache ( ) | ||
return | yii\caching\CacheInterface|null |
The cache application component. Null if the component is not enabled. |
---|
public function getCache()
{
return $this->get('cache', false);
}
Defined in: yii\di\ServiceLocator::getComponents()
Returns the list of the component definitions or the loaded component instances.
public array getComponents ( $returnDefinitions = true ) | ||
$returnDefinitions | boolean |
Whether to return component definitions instead of the loaded component instances. |
return | array |
The list of the component definitions or the loaded component instances (ID => definition or instance). |
---|
public function getComponents($returnDefinitions = true)
{
return $returnDefinitions ? $this->_definitions : $this->_components;
}
Defined in: yii\base\Module::getControllerPath()
Returns the directory that contains the controller classes according to $controllerNamespace.
Note that in order for this method to return a value, you must define an alias for the root namespace of $controllerNamespace.
public string getControllerPath ( ) | ||
return | string |
The directory that contains the controller classes. |
---|---|---|
throws | yii\base\InvalidArgumentException |
if there is no alias defined for the root namespace of $controllerNamespace. |
public function getControllerPath()
{
if ($this->_controllerPath === null) {
$this->_controllerPath = Yii::getAlias('@' . str_replace('\\', '/', $this->controllerNamespace));
}
return $this->_controllerPath;
}
Returns the database connection component.
public yii\db\Connection getDb ( ) | ||
return | yii\db\Connection |
The database connection. |
---|
public function getDb()
{
return $this->get('db');
}
Returns the error handler component.
public yii\web\ErrorHandler|yii\console\ErrorHandler getErrorHandler ( ) | ||
return | yii\web\ErrorHandler|yii\console\ErrorHandler |
The error handler application component. |
---|
public function getErrorHandler()
{
return $this->get('errorHandler');
}
Returns the formatter component.
public yii\i18n\Formatter getFormatter ( ) | ||
return | yii\i18n\Formatter |
The formatter application component. |
---|
public function getFormatter()
{
return $this->get('formatter');
}
Returns the internationalization (i18n) component.
public yii\i18n\I18N getI18n ( ) | ||
return | yii\i18n\I18N |
The internationalization application component. |
---|
public function getI18n()
{
return $this->get('i18n');
}
Defined in: yii\base\Module::getInstance()
Returns the currently requested instance of this module class.
If the module class is not currently requested, null
will be returned.
This method is provided so that you access the module instance from anywhere within the module.
public static static|null getInstance ( ) | ||
return | static|null |
The currently requested instance of this module class, or |
---|
public static function getInstance()
{
$class = get_called_class();
return isset(Yii::$app->loadedModules[$class]) ? Yii::$app->loadedModules[$class] : null;
}
Defined in: yii\base\Module::getLayoutPath()
Returns the directory that contains layout view files for this module.
public string getLayoutPath ( ) | ||
return | string |
The root directory of layout files. Defaults to "$viewPath/layouts". |
---|
public function getLayoutPath()
{
if ($this->_layoutPath === null) {
$this->_layoutPath = $this->getViewPath() . DIRECTORY_SEPARATOR . 'layouts';
}
return $this->_layoutPath;
}
Returns the log dispatcher component.
public yii\log\Dispatcher getLog ( ) | ||
return | yii\log\Dispatcher |
The log dispatcher application component. |
---|
public function getLog()
{
return $this->get('log');
}
Returns the mailer component.
public yii\mail\MailerInterface getMailer ( ) | ||
return | yii\mail\MailerInterface |
The mailer application component. |
---|---|---|
throws | yii\base\InvalidConfigException |
If this component is not configured. |
public function getMailer()
{
return $this->get('mailer');
}
Defined in: yii\base\Module::getModule()
Retrieves the child module of the specified ID.
This method supports retrieving both child modules and grand child modules.
See also hasModule().
public yii\base\Module|null getModule ( $id, $load = true ) | ||
$id | string |
Module ID (case-sensitive). To retrieve grand child modules,
use ID path relative to this module (e.g. |
$load | boolean |
Whether to load the module if it is not yet loaded. |
return | yii\base\Module|null |
The module instance, |
---|
public function getModule($id, $load = true)
{
if (($pos = strpos($id, '/')) !== false) {
// sub-module
$module = $this->getModule(substr($id, 0, $pos));
return $module === null ? null : $module->getModule(substr($id, $pos + 1), $load);
}
if (isset($this->_modules[$id])) {
if ($this->_modules[$id] instanceof self) {
return $this->_modules[$id];
} elseif ($load) {
Yii::debug("Loading module: $id", __METHOD__);
/* @var $module Module */
$module = Yii::createObject($this->_modules[$id], [$id, $this]);
$module::setInstance($module);
return $this->_modules[$id] = $module;
}
}
return null;
}
Defined in: yii\base\Module::getModules()
Returns the sub-modules in this module.
public array getModules ( $loadedOnly = false ) | ||
$loadedOnly | boolean |
Whether to return the loaded sub-modules only. If this is set |
return | array |
The modules (indexed by their IDs). |
---|
public function getModules($loadedOnly = false)
{
if ($loadedOnly) {
$modules = [];
foreach ($this->_modules as $module) {
if ($module instanceof self) {
$modules[] = $module;
}
}
return $modules;
}
return $this->_modules;
}
Returns the request component.
public yii\web\Request|yii\console\Request getRequest ( ) | ||
return | yii\web\Request|yii\console\Request |
The request component. |
---|
public function getRequest()
{
return $this->get('request');
}
Returns the response component.
public yii\web\Response|yii\console\Response getResponse ( ) | ||
return | yii\web\Response|yii\console\Response |
The response component. |
---|
public function getResponse()
{
return $this->get('response');
}
Returns the directory that stores runtime files.
public string getRuntimePath ( ) | ||
return | string |
The directory that stores runtime files. Defaults to the "runtime" subdirectory under $basePath. |
---|
public function getRuntimePath()
{
if ($this->_runtimePath === null) {
$this->setRuntimePath($this->getBasePath() . DIRECTORY_SEPARATOR . 'runtime');
}
return $this->_runtimePath;
}
Returns the security component.
public yii\base\Security getSecurity ( ) | ||
return | yii\base\Security |
The security application component. |
---|
public function getSecurity()
{
return $this->get('security');
}
Returns the time zone used by this application.
This is a simple wrapper of PHP function date_default_timezone_get(). If time zone is not configured in php.ini or application config, it will be set to UTC by default.
See also https://www.php.net/manual/en/function.date-default-timezone-get.php.
public string getTimeZone ( ) | ||
return | string |
The time zone used by this application. |
---|
public function getTimeZone()
{
return date_default_timezone_get();
}
Returns an ID that uniquely identifies this module among all modules within the current application.
Since this is an application instance, it will always return an empty string.
public string getUniqueId ( ) | ||
return | string |
The unique ID of the module. |
---|
public function getUniqueId()
{
return '';
}
Returns the URL manager for this application.
public yii\web\UrlManager getUrlManager ( ) | ||
return | yii\web\UrlManager |
The URL manager for this application. |
---|
public function getUrlManager()
{
return $this->get('urlManager');
}
Returns the directory that stores vendor files.
public string getVendorPath ( ) | ||
return | string |
The directory that stores vendor files. Defaults to "vendor" directory under $basePath. |
---|
public function getVendorPath()
{
if ($this->_vendorPath === null) {
$this->setVendorPath($this->getBasePath() . DIRECTORY_SEPARATOR . 'vendor');
}
return $this->_vendorPath;
}
Defined in: yii\base\Module::getVersion()
Returns current module version.
If version is not explicitly set, defaultVersion() method will be used to determine its value.
public string getVersion ( ) | ||
return | string |
The version of this module. |
---|
public function getVersion()
{
if ($this->_version === null) {
$this->_version = $this->defaultVersion();
} else {
if (!is_scalar($this->_version)) {
$this->_version = call_user_func($this->_version, $this);
}
}
return $this->_version;
}
Returns the view object.
public yii\base\View|yii\web\View getView ( ) | ||
return | yii\base\View|yii\web\View |
The view application component that is used to render various view files. |
---|
public function getView()
{
return $this->get('view');
}
Defined in: yii\base\Module::getViewPath()
Returns the directory that contains the view files for this module.
public string getViewPath ( ) | ||
return | string |
The root directory of view files. Defaults to "$basePath/views". |
---|
public function getViewPath()
{
if ($this->_viewPath === null) {
$this->_viewPath = $this->getBasePath() . DIRECTORY_SEPARATOR . 'views';
}
return $this->_viewPath;
}
Handles the specified request.
This method should return an instance of yii\base\Response or its child class which represents the handling result of the request.
public abstract yii\base\Response handleRequest ( $request ) | ||
$request | yii\base\Request |
The request to be handled |
return | yii\base\Response |
The resulting response |
---|
abstract public function handleRequest($request);
Defined in: yii\base\Module::has()
Returns a value indicating whether the locator has the specified component definition or has instantiated the component.
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.
This method may return different results depending on the value of $checkInstance
.
- If
$checkInstance
is false (default), the method will return a value indicating whether the locator has the specified component definition. - If
$checkInstance
is true, the method will return a value indicating whether the locator has instantiated the specified component.
public boolean has ( $id, $checkInstance = false ) | ||
$id | string |
Component ID (e.g. |
$checkInstance | boolean |
Whether the method should check if the component is shared and instantiated. |
return | boolean |
Whether the locator has the specified component definition or has instantiated the component. |
---|
public function has($id, $checkInstance = false)
{
return parent::has($id, $checkInstance) || (isset($this->module) && $this->module->has($id, $checkInstance));
}
Defined in: yii\base\Component::hasEventHandlers()
Returns a value indicating whether there is any handler attached to the named event.
public boolean hasEventHandlers ( $name ) | ||
$name | string |
The event name |
return | boolean |
Whether there is any handler attached to the event. |
---|
public function hasEventHandlers($name)
{
$this->ensureBehaviors();
if (!empty($this->_events[$name])) {
return true;
}
foreach ($this->_eventWildcards as $wildcard => $handlers) {
if (!empty($handlers) && StringHelper::matchWildcard($wildcard, $name)) {
return true;
}
}
return Event::hasHandlers($this, $name);
}
Defined in: yii\base\Component::hasMethod()
Returns a value indicating whether a method is defined.
A method is defined if:
- the class has a method with the specified name
- an attached behavior has a method with the given name (when
$checkBehaviors
is true).
public boolean hasMethod ( $name, $checkBehaviors = true ) | ||
$name | string |
The property name |
$checkBehaviors | boolean |
Whether to treat behaviors' methods as methods of this component |
return | boolean |
Whether the method is defined |
---|
public function hasMethod($name, $checkBehaviors = true)
{
if (method_exists($this, $name)) {
return true;
} elseif ($checkBehaviors) {
$this->ensureBehaviors();
foreach ($this->_behaviors as $behavior) {
if ($behavior->hasMethod($name)) {
return true;
}
}
}
return false;
}
Defined in: yii\base\Module::hasModule()
Checks whether the child module of the specified ID exists.
This method supports checking the existence of both child and grand child modules.
public boolean hasModule ( $id ) | ||
$id | string |
Module ID. For grand child modules, use ID path relative to this module (e.g. |
return | boolean |
Whether the named module exists. Both loaded and unloaded modules are considered. |
---|
public function hasModule($id)
{
if (($pos = strpos($id, '/')) !== false) {
// sub-module
$module = $this->getModule(substr($id, 0, $pos));
return $module === null ? false : $module->hasModule(substr($id, $pos + 1));
}
return isset($this->_modules[$id]);
}
Defined in: yii\base\Component::hasProperty()
Returns a value indicating whether a property is defined for this component.
A property is defined if:
- the class has a getter or setter method associated with the specified name (in this case, property name is case-insensitive);
- the class has a member variable with the specified name (when
$checkVars
is true); - an attached behavior has a property of the given name (when
$checkBehaviors
is true).
See also:
public boolean hasProperty ( $name, $checkVars = true, $checkBehaviors = true ) | ||
$name | string |
The property name |
$checkVars | boolean |
Whether to treat member variables as properties |
$checkBehaviors | boolean |
Whether to treat behaviors' properties as properties of this component |
return | boolean |
Whether the property is defined |
---|
public function hasProperty($name, $checkVars = true, $checkBehaviors = true)
{
return $this->canGetProperty($name, $checkVars, $checkBehaviors) || $this->canSetProperty($name, false, $checkBehaviors);
}
Initializes the module.
This method is called after the module is created and initialized with property values given in configuration. The default implementation will initialize $controllerNamespace if it is not set.
If you override this method, please make sure you call the parent implementation.
public void init ( ) |
public function init()
{
$this->state = self::STATE_INIT;
$this->bootstrap();
}
Defined in: yii\base\Component::off()
Detaches an existing event handler from this component.
This method is the opposite of on().
Note: in case wildcard pattern is passed for event name, only the handlers registered with this wildcard will be removed, while handlers registered with plain names matching this wildcard will remain.
See also on().
public boolean off ( $name, $handler = null ) | ||
$name | string |
Event name |
$handler | callable|null |
The event handler to be removed. If it is null, all handlers attached to the named event will be removed. |
return | boolean |
If a handler is found and detached |
---|
public function off($name, $handler = null)
{
$this->ensureBehaviors();
if (empty($this->_events[$name]) && empty($this->_eventWildcards[$name])) {
return false;
}
if ($handler === null) {
unset($this->_events[$name], $this->_eventWildcards[$name]);
return true;
}
$removed = false;
// plain event names
if (isset($this->_events[$name])) {
foreach ($this->_events[$name] as $i => $event) {
if ($event[0] === $handler) {
unset($this->_events[$name][$i]);
$removed = true;
}
}
if ($removed) {
$this->_events[$name] = array_values($this->_events[$name]);
return true;
}
}
// wildcard event names
if (isset($this->_eventWildcards[$name])) {
foreach ($this->_eventWildcards[$name] as $i => $event) {
if ($event[0] === $handler) {
unset($this->_eventWildcards[$name][$i]);
$removed = true;
}
}
if ($removed) {
$this->_eventWildcards[$name] = array_values($this->_eventWildcards[$name]);
// remove empty wildcards to save future redundant regex checks:
if (empty($this->_eventWildcards[$name])) {
unset($this->_eventWildcards[$name]);
}
}
}
return $removed;
}
Defined in: yii\base\Component::on()
Attaches an event handler to an event.
The event handler must be a valid PHP callback. The following are some examples:
function ($event) { ... } // anonymous function
[$object, 'handleClick'] // $object->handleClick()
['Page', 'handleClick'] // Page::handleClick()
'handleClick' // global function handleClick()
The event handler must be defined with the following signature,
function ($event)
where $event
is an yii\base\Event object which includes parameters associated with the event.
Since 2.0.14 you can specify event name as a wildcard pattern:
$component->on('event.group.*', function ($event) {
Yii::trace($event->name . ' is triggered.');
});
See also off().
public void on ( $name, $handler, $data = null, $append = true ) | ||
$name | string |
The event name |
$handler | callable |
The event handler |
$data | mixed |
The data to be passed to the event handler when the event is triggered. When the event handler is invoked, this data can be accessed via yii\base\Event::$data. |
$append | boolean |
Whether to append new event handler to the end of the existing handler list. If false, the new handler will be inserted at the beginning of the existing handler list. |
public function on($name, $handler, $data = null, $append = true)
{
$this->ensureBehaviors();
if (strpos($name, '*') !== false) {
if ($append || empty($this->_eventWildcards[$name])) {
$this->_eventWildcards[$name][] = [$handler, $data];
} else {
array_unshift($this->_eventWildcards[$name], [$handler, $data]);
}
return;
}
if ($append || empty($this->_events[$name])) {
$this->_events[$name][] = [$handler, $data];
} else {
array_unshift($this->_events[$name], [$handler, $data]);
}
}
Pre-initializes the application.
This method is called at the beginning of the application constructor. It initializes several important application properties. If you override this method, please make sure you call the parent implementation.
public void preInit ( &$config ) | ||
$config | array |
The application configuration |
throws | yii\base\InvalidConfigException |
---|
public function preInit(&$config)
{
if (!isset($config['id'])) {
throw new InvalidConfigException('The "id" configuration for the Application is required.');
}
if (isset($config['basePath'])) {
$this->setBasePath($config['basePath']);
unset($config['basePath']);
} else {
throw new InvalidConfigException('The "basePath" configuration for the Application is required.');
}
if (isset($config['vendorPath'])) {
$this->setVendorPath($config['vendorPath']);
unset($config['vendorPath']);
} else {
// set "@vendor"
$this->getVendorPath();
}
if (isset($config['runtimePath'])) {
$this->setRuntimePath($config['runtimePath']);
unset($config['runtimePath']);
} else {
// set "@runtime"
$this->getRuntimePath();
}
if (isset($config['timeZone'])) {
$this->setTimeZone($config['timeZone']);
unset($config['timeZone']);
} elseif (!ini_get('date.timezone')) {
$this->setTimeZone('UTC');
}
if (isset($config['container'])) {
$this->setContainer($config['container']);
unset($config['container']);
}
// merge core components with custom components
foreach ($this->coreComponents() as $id => $component) {
if (!isset($config['components'][$id])) {
$config['components'][$id] = $component;
} elseif (is_array($config['components'][$id]) && !isset($config['components'][$id]['class'])) {
$config['components'][$id]['class'] = $component['class'];
}
}
}
Registers the errorHandler component as a PHP error handler.
protected void registerErrorHandler ( &$config ) | ||
$config | array |
Application config |
protected function registerErrorHandler(&$config)
{
if (YII_ENABLE_ERROR_HANDLER) {
if (!isset($config['components']['errorHandler']['class'])) {
echo "Error: no errorHandler component is configured.\n";
exit(1);
}
$this->set('errorHandler', $config['components']['errorHandler']);
unset($config['components']['errorHandler']);
$this->getErrorHandler()->register();
}
}
Runs the application.
This is the main entrance of an application.
public integer run ( ) | ||
return | integer |
The exit status (0 means normal, non-zero values mean abnormal) |
---|
public function run()
{
try {
$this->state = self::STATE_BEFORE_REQUEST;
$this->trigger(self::EVENT_BEFORE_REQUEST);
$this->state = self::STATE_HANDLING_REQUEST;
$response = $this->handleRequest($this->getRequest());
$this->state = self::STATE_AFTER_REQUEST;
$this->trigger(self::EVENT_AFTER_REQUEST);
$this->state = self::STATE_SENDING_RESPONSE;
$response->send();
$this->state = self::STATE_END;
return $response->exitStatus;
} catch (ExitException $e) {
$this->end($e->statusCode, isset($response) ? $response : null);
return $e->statusCode;
}
}
Defined in: yii\base\Module::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 yii\base\Controller::runAction() to run the action with the given parameters. If the route is empty, the method will use $defaultRoute.
public mixed runAction ( $route, $params = [] ) | ||
$route | string |
The route that specifies the action. |
$params | array |
The parameters to be passed to the action |
return | mixed |
The result of the action. |
---|---|---|
throws | yii\base\InvalidRouteException |
if the requested route cannot be resolved into an action successfully. |
public function runAction($route, $params = [])
{
$parts = $this->createController($route);
if (is_array($parts)) {
/* @var $controller Controller */
list($controller, $actionID) = $parts;
$oldController = Yii::$app->controller;
Yii::$app->controller = $controller;
$result = $controller->runAction($actionID, $params);
if ($oldController !== null) {
Yii::$app->controller = $oldController;
}
return $result;
}
$id = $this->getUniqueId();
throw new InvalidRouteException('Unable to resolve the request "' . ($id === '' ? $route : $id . '/' . $route) . '".');
}
Defined in: yii\di\ServiceLocator::set()
Registers a component definition with this locator.
For example,
// a class name
$locator->set('cache', 'yii\caching\FileCache');
// a configuration array
$locator->set('db', [
'class' => 'yii\db\Connection',
'dsn' => 'mysql:host=127.0.0.1;dbname=demo',
'username' => 'root',
'password' => '',
'charset' => 'utf8',
]);
// an anonymous function
$locator->set('cache', function ($params) {
return new \yii\caching\FileCache;
});
// an instance
$locator->set('cache', new \yii\caching\FileCache);
If a component definition with the same ID already exists, it will be overwritten.
public void set ( $id, $definition ) | ||
$id | string |
Component ID (e.g. |
$definition | mixed |
The component definition to be registered with this locator. It can be one of the following:
|
throws | yii\base\InvalidConfigException |
if the definition is an invalid configuration array |
---|
public function set($id, $definition)
{
unset($this->_components[$id]);
if ($definition === null) {
unset($this->_definitions[$id]);
return;
}
if (is_object($definition) || is_callable($definition, true)) {
// an object, a class name, or a PHP callable
$this->_definitions[$id] = $definition;
} elseif (is_array($definition)) {
// a configuration array
if (isset($definition['__class'])) {
$this->_definitions[$id] = $definition;
$this->_definitions[$id]['class'] = $definition['__class'];
unset($this->_definitions[$id]['__class']);
} elseif (isset($definition['class'])) {
$this->_definitions[$id] = $definition;
} else {
throw new InvalidConfigException("The configuration for the \"$id\" component must contain a \"class\" element.");
}
} else {
throw new InvalidConfigException("Unexpected configuration type for the \"$id\" component: " . gettype($definition));
}
}
Defined in: yii\base\Module::setAliases()
Defines path aliases.
This method calls Yii::setAlias() to register the path aliases. This method is provided so that you can define path aliases when configuring a module.
public void setAliases ( $aliases ) | ||
$aliases | array |
List of path aliases to be defined. The array keys are alias names
(must start with
|
public function setAliases($aliases)
{
foreach ($aliases as $name => $alias) {
Yii::setAlias($name, $alias);
}
}
Sets the root directory of the application and the @app alias.
This method can only be invoked at the beginning of the constructor.
public void setBasePath ( $path ) | ||
$path | string |
The root directory of the application. |
throws | yii\base\InvalidArgumentException |
if the directory does not exist. |
---|
public function setBasePath($path)
{
parent::setBasePath($path);
Yii::setAlias('@app', $this->getBasePath());
}
Defined in: yii\di\ServiceLocator::setComponents()
Registers a set of component definitions in this locator.
This is the bulk version of set(). The parameter should be an array whose keys are component IDs and values the corresponding component definitions.
For more details on how to specify component IDs and definitions, please refer to set().
If a component definition with the same ID already exists, it will be overwritten.
The following is an example for registering two component definitions:
[
'db' => [
'class' => 'yii\db\Connection',
'dsn' => 'sqlite:path/to/file.db',
],
'cache' => [
'class' => 'yii\caching\DbCache',
'db' => 'db',
],
]
public void setComponents ( $components ) | ||
$components | array |
Component definitions or instances |
public function setComponents($components)
{
foreach ($components as $id => $component) {
$this->set($id, $component);
}
}
Configures Yii::$container with the $config.
public void setContainer ( $config ) | ||
$config | array |
Values given in terms of name-value pairs |
public function setContainer($config)
{
Yii::configure(Yii::$container, $config);
}
Defined in: yii\base\Module::setControllerPath()
Sets the directory that contains the controller classes.
public void setControllerPath ( $path ) | ||
$path | string |
The root directory that contains the controller classes. |
throws | yii\base\InvalidArgumentException |
if the directory is invalid. |
---|
public function setControllerPath($path)
{
$this->_controllerPath = Yii::getAlias($path);
}
Defined in: yii\base\Module::setInstance()
Sets the currently requested instance of this module class.
public static void setInstance ( $instance ) | ||
$instance | yii\base\Module|null |
The currently requested instance of this module class.
If it is |
public static function setInstance($instance)
{
if ($instance === null) {
unset(Yii::$app->loadedModules[get_called_class()]);
} else {
Yii::$app->loadedModules[get_class($instance)] = $instance;
}
}
Defined in: yii\base\Module::setLayoutPath()
Sets the directory that contains the layout files.
public void setLayoutPath ( $path ) | ||
$path | string |
The root directory or path alias of layout files. |
throws | yii\base\InvalidArgumentException |
if the directory is invalid |
---|
public function setLayoutPath($path)
{
$this->_layoutPath = Yii::getAlias($path);
}
Defined in: yii\base\Module::setModule()
Adds a sub-module to this module.
public void setModule ( $id, $module ) | ||
$id | string |
Module ID. |
$module | yii\base\Module|array|null |
The sub-module to be added to this module. This can be one of the following:
|
public function setModule($id, $module)
{
if ($module === null) {
unset($this->_modules[$id]);
} else {
$this->_modules[$id] = $module;
if ($module instanceof self) {
$module->module = $this;
}
}
}
Defined in: yii\base\Module::setModules()
Registers sub-modules in the current module.
Each sub-module should be specified as a name-value pair, where name refers to the ID of the module and value the module or a configuration array that can be used to create the module. In the latter case, Yii::createObject() will be used to create the module.
If a new sub-module has the same ID as an existing one, the existing one will be overwritten silently.
The following is an example for registering two sub-modules:
[
'comment' => [
'class' => 'app\modules\comment\CommentModule',
'db' => 'db',
],
'booking' => ['class' => 'app\modules\booking\BookingModule'],
]
public void setModules ( $modules ) | ||
$modules | array |
Modules (id => module configuration or instances). |
public function setModules($modules)
{
foreach ($modules as $id => $module) {
$this->_modules[$id] = $module;
if ($module instanceof self) {
$module->module = $this;
}
}
}
Sets the directory that stores runtime files.
public void setRuntimePath ( $path ) | ||
$path | string |
The directory that stores runtime files. |
public function setRuntimePath($path)
{
$this->_runtimePath = Yii::getAlias($path);
Yii::setAlias('@runtime', $this->_runtimePath);
}
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.
See also https://www.php.net/manual/en/function.date-default-timezone-set.php.
public void setTimeZone ( $value ) | ||
$value | string |
The time zone used by this application. |
public function setTimeZone($value)
{
date_default_timezone_set($value);
}
Sets the directory that stores vendor files.
public void setVendorPath ( $path ) | ||
$path | string |
The directory that stores vendor files. |
public function setVendorPath($path)
{
$this->_vendorPath = Yii::getAlias($path);
Yii::setAlias('@vendor', $this->_vendorPath);
Yii::setAlias('@bower', $this->_vendorPath . DIRECTORY_SEPARATOR . 'bower');
Yii::setAlias('@npm', $this->_vendorPath . DIRECTORY_SEPARATOR . 'npm');
}
Defined in: yii\base\Module::setVersion()
Sets current module version.
public void setVersion ( $version ) | ||
$version | string|callable|null |
The version of this module. Version can be specified as a PHP callback, which can accept module instance as an argument and should return the actual version. For example:
|
public function setVersion($version)
{
$this->_version = $version;
}
Defined in: yii\base\Module::setViewPath()
Sets the directory that contains the view files.
public void setViewPath ( $path ) | ||
$path | string |
The root directory of view files. |
throws | yii\base\InvalidArgumentException |
if the directory is invalid. |
---|
public function setViewPath($path)
{
$this->_viewPath = Yii::getAlias($path);
}
Defined in: yii\base\Component::trigger()
Triggers an event.
This method represents the happening of an event. It invokes all attached handlers for the event including class-level handlers.
public void trigger ( $name, yii\base\Event $event = null ) | ||
$name | string |
The event name |
$event | yii\base\Event|null |
The event instance. If not set, a default yii\base\Event object will be created. |
public function trigger($name, Event $event = null)
{
$this->ensureBehaviors();
$eventHandlers = [];
foreach ($this->_eventWildcards as $wildcard => $handlers) {
if (StringHelper::matchWildcard($wildcard, $name)) {
$eventHandlers[] = $handlers;
}
}
if (!empty($this->_events[$name])) {
$eventHandlers[] = $this->_events[$name];
}
if (!empty($eventHandlers)) {
$eventHandlers = call_user_func_array('array_merge', $eventHandlers);
if ($event === null) {
$event = new Event();
}
if ($event->sender === null) {
$event->sender = $this;
}
$event->handled = false;
$event->name = $name;
foreach ($eventHandlers as $handler) {
$event->data = $handler[1];
call_user_func($handler[0], $event);
// stop further handling if the event is handled
if ($event->handled) {
return;
}
}
}
// invoke class-level attached handlers
Event::trigger($this, $name, $event);
}
Event Details
An event raised after the application successfully handles a request (before the response is sent out).
An event raised before the application starts to handle a request.
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