Class yii\base\Action

Inheritanceyii\base\Action » yii\base\Component » yii\base\BaseObject
Implementsyii\base\Configurable
Subclassesyii\authclient\AuthAction, yii\base\InlineAction, yii\captcha\CaptchaAction, yii\debug\actions\db\ExplainAction, yii\elasticsearch\DebugAction, yii\gii\console\GenerateAction, yii\httpclient\debug\RequestExecuteAction, yii\mongodb\debug\ExplainAction, yii\rest\Action, yii\rest\CreateAction, yii\rest\DeleteAction, yii\rest\IndexAction, yii\rest\OptionsAction, yii\rest\UpdateAction, yii\rest\ViewAction, yii\web\ErrorAction, yii\web\ViewAction
Available since version2.0
Source Code https://github.com/yiisoft/yii2/blob/master/framework/base/Action.php

Action is the base class for all controller action classes.

Action provides a way to reuse action method code. An action method in an Action class can be used in multiple controllers or in different projects.

Derived classes must implement a method named run(). This method will be invoked by the controller when the action is requested. The run() method can have parameters which will be filled up with user input values automatically according to their names. For example, if the run() method is declared as follows:

public function run($id, $type = 'book') { ... }

And the parameters provided for the action are: ['id' => 1]. Then the run() method will be invoked as run(1) automatically.

For more details and usage information on Action, see the guide article on actions.

Public Properties

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PropertyTypeDescriptionDefined By
$controller yii\base\Controller|yii\web\Controller|yii\console\Controller The controller that owns this action yii\base\Action
$id string ID of the action yii\base\Action

Public Methods

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MethodDescriptionDefined By
__call() Calls the named method which is not a class method. yii\base\BaseObject
__clone() This method is called after the object is created by cloning an existing one. yii\base\Component
__construct() Constructor. yii\base\Action
__get() Returns the value of an object property. yii\base\BaseObject
__isset() Checks if a property is set, i.e. defined and not null. yii\base\BaseObject
__set() Sets value of an object property. yii\base\BaseObject
__unset() Sets an object property to null. yii\base\BaseObject
attachBehavior() Attaches a behavior to this component. yii\base\Component
attachBehaviors() Attaches a list of behaviors to the component. yii\base\Component
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\BaseObject
canSetProperty() Returns a value indicating whether a property can be set. yii\base\BaseObject
className() Returns the fully qualified name of this class. yii\base\BaseObject
detachBehavior() Detaches a behavior from the component. yii\base\Component
detachBehaviors() Detaches all behaviors from the component. yii\base\Component
ensureBehaviors() Makes sure that the behaviors declared in behaviors() are attached to this component. yii\base\Component
getBehavior() Returns the named behavior object. yii\base\Component
getBehaviors() Returns all behaviors attached to this component. yii\base\Component
getUniqueId() Returns the unique ID of this action among the whole application. yii\base\Action
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\BaseObject
hasProperty() Returns a value indicating whether a property is defined. yii\base\BaseObject
init() Initializes the object. yii\base\BaseObject
off() Detaches an existing event handler from this component. yii\base\Component
on() Attaches an event handler to an event. yii\base\Component
runWithParams() Runs this action with the specified parameters. yii\base\Action
trigger() Triggers an event. yii\base\Component

Protected Methods

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MethodDescriptionDefined By
afterRun() This method is called right after run() is executed. yii\base\Action
beforeRun() This method is called right before run() is executed. yii\base\Action

Property Details

$controller public property

The controller that owns this action

$id public property

ID of the action

public string $id null

Method Details

__construct() public method

Constructor.

public void __construct ( $id, $controller, $config = [] )
$id string

The ID of this action

$controller yii\base\Controller

The controller that owns this action

$config array

Name-value pairs that will be used to initialize the object properties

afterRun() protected method

This method is called right after run() is executed.

You may override this method to do post-processing work for the action run.

protected void afterRun ( )
beforeRun() protected method

This method is called right before run() is executed.

You may override this method to do preparation work for the action run. If the method returns false, it will cancel the action.

protected boolean beforeRun ( )
return boolean

Whether to run the action.

getUniqueId() public method

Returns the unique ID of this action among the whole application.

public string getUniqueId ( )
return string

The unique ID of this action among the whole application.

runWithParams() public method

Runs this action with the specified parameters.

This method is mainly invoked by the controller.

public mixed runWithParams ( $params )
$params array

The parameters to be bound to the action's run() method.

return mixed

The result of the action

throws yii\base\InvalidConfigException

if the action class does not have a run() method