# Class yii\rest\ActiveController

Inheritance | yii\rest\ActiveController » yii\rest\Controller » yii\web\Controller » yii\base\Controller » yii\base\Component » yii\base\BaseObject
Implements | yii\base\Configurable, yii\base\ViewContextInterface
Available since version | 2.0
Source Code | https://github.com/yiisoft/yii2/blob/master/framework/rest/ActiveController.php

ActiveController implements a common set of actions for supporting RESTful access to ActiveRecord.

The class of the ActiveRecord should be specified via $modelClass, which must implement yii\db\ActiveRecordInterface. By default, the following actions are supported:

- `index`: list of models
- `view`: return the details of a model
- `create`: create a new model
- `update`: update an existing model
- `delete`: delete an existing model
- `options`: return the allowed HTTP methods

You may disable some of these actions by overriding actions() and unsetting the corresponding actions.

To add a new action, either override actions() by appending a new action class or write a new action method. Make sure you also override verbs() to properly declare what HTTP methods are allowed by the new action.

You should usually override checkAccess() to check whether the current user has the privilege to perform the specified action against the specified model.

For more details and usage information on ActiveController, see the guide article on rest controllers.

## Public Properties

Hide inherited properties

Property | Type | Description | Defined By
--- | --- | --- | ---
$action | yii\base\Action|null | The action that is currently being executed. | yii\base\Controller
$actionParams | array | The parameters bound to the current action. | yii\web\Controller
$behaviors | yii\base\Behavior[] | List of behaviors attached to this component. This property is read-only. | yii\base\Component
$createScenario | string | The scenario used for creating a model. | yii\rest\ActiveController
$defaultAction | string | The ID of the action that is used when the action ID is not specified in the request. | yii\base\Controller
$enableCsrfValidation | boolean | Whether to enable CSRF validation for the actions in this controller. | yii\rest\Controller
$id | string | The ID of this controller. | yii\base\Controller
$layout | null|string|false | The name of the layout to be applied to this controller's views. | yii\base\Controller
$modelClass | string | The model class name. | yii\rest\ActiveController
$module | yii\base\Module | The module that this controller belongs to. | yii\base\Controller
$modules | yii\base\Module[] | All ancestor modules that this controller is located within. This property is read-only. | yii\base\Controller
$request | yii\base\Request|array|string | The request. | yii\base\Controller
$response | yii\base\Response|array|string | The response. | yii\base\Controller
$route | string | The route (module ID, controller ID and action ID) of the current request. This property is read-only. | yii\base\Controller
$serializer | string|array | The configuration for creating the serializer that formats the response data. | yii\rest\Controller
$uniqueId | string | The controller ID that is prefixed with the module ID (if any). This property is read-only. | yii\base\Controller
$updateScenario | string | The scenario used for updating a model. | yii\rest\ActiveController
$view | yii\base\View|yii\web\View | The view object that can be used to render views or view files. | yii\base\Controller
$viewPath | string | The directory containing the view files for this controller. | yii\base\Controller

## Public Methods

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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() |  | yii\base\Controller
__get() | Returns the value of a component property. | yii\base\Component
__isset() | Checks if a property is set, i.e. defined and not null. | yii\base\Component
__set() | Sets the value of a component property. | yii\base\Component
__unset() | Sets a component property to be null. | yii\base\Component
actions() | Declares external actions for the controller. | yii\rest\ActiveController
afterAction() | This method is invoked right after an action is executed. | yii\rest\Controller
asJson() | Send data formatted as JSON. | yii\web\Controller
asXml() | Send data formatted as XML. | yii\web\Controller
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 is executed. | yii\base\Controller
behaviors() | Returns a list of behaviors that this component should behave as. | yii\rest\Controller
bindActionParams() | Binds the parameters to the action. | yii\base\Controller
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
checkAccess() | Checks the privilege of the current user. | yii\rest\ActiveController
className() | Returns the fully qualified name of this class. | yii\base\BaseObject
createAction() | Creates an action based on the given action ID. | yii\base\Controller
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
findLayoutFile() | Finds the applicable layout file. | yii\base\Controller
getBehavior() | Returns the named behavior object. | yii\base\Component
getBehaviors() | Returns all behaviors attached to this component. | yii\base\Component
getModules() | Returns all ancestor modules of this controller. | yii\base\Controller
getRoute() | Returns the route of the current request. | yii\base\Controller
getUniqueId() | Returns the unique ID of the controller. | yii\base\Controller
getView() | Returns the view object that can be used to render views or view files. | yii\base\Controller
getViewPath() | Returns the directory containing view files for this controller. | yii\base\Controller
goBack() | Redirects the browser to the last visited page. | yii\web\Controller
goHome() | Redirects the browser to the home page. | yii\web\Controller
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
hasProperty() | Returns a value indicating whether a property is defined for this component. | yii\base\Component
init() | Initializes the object. | yii\rest\ActiveController
off() | Detaches an existing event handler from this component. | yii\base\Component
on() | Attaches an event handler to an event. | yii\base\Component
redirect() | Redirects the browser to the specified URL. | yii\web\Controller
refresh() | Refreshes the current page. | yii\web\Controller
render() | Renders a view and applies layout if available. | yii\base\Controller
renderAjax() | Renders a view in response to an AJAX request. | yii\web\Controller
renderContent() | Renders a static string by applying a layout. | yii\base\Controller
renderFile() | Renders a view file. | yii\base\Controller
renderPartial() | Renders a view without applying layout. | yii\base\Controller
run() | Runs a request specified in terms of a route. | yii\base\Controller
runAction() | Runs an action within this controller with the specified action ID and parameters. | yii\base\Controller
setView() | Sets the view object to be used by this controller. | yii\base\Controller
setViewPath() | Sets the directory that contains the view files. | yii\base\Controller
trigger() | Triggers an event. | yii\base\Component

## Protected Methods

Hide inherited methods

Method | Description | Defined By
--- | --- | ---
bindInjectedParams() | Fills parameters based on types and names in action method signature. | yii\base\Controller
serializeData() | Serializes the specified data. | yii\rest\Controller
verbs() | Declares the allowed HTTP verbs. | yii\rest\ActiveController

## Events

Hide inherited events

Event | Type | Description | Defined By
--- | --- | --- | ---
EVENT_AFTER_ACTION | yii\base\ActionEvent | An event raised right after executing a controller action. | yii\base\Controller
EVENT_BEFORE_ACTION | yii\base\ActionEvent | An event raised right before executing a controller action. | yii\base\Controller

## Property Details

$createScenario public property

The scenario used for creating a model.

See also yii\base\Model::scenarios().

public string $createScenario = \yii\base\Model::SCENARIO_DEFAULT
$modelClass public property

The model class name. This property must be set.

public string $modelClass = null
$updateScenario public property

The scenario used for updating a model.

See also yii\base\Model::scenarios().

public string $updateScenario = \yii\base\Model::SCENARIO_DEFAULT

## Method Details

actions() public method

Declares external actions for the controller.

This method is meant to be overwritten to declare external actions for the controller. It should return an array, with array keys being action IDs, and array values the corresponding action class names or action configuration arrays. For example,

    return [
        'action1' => 'app\components\Action1',
        'action2' => [
            'class' => 'app\components\Action2',
            'property1' => 'value1',
            'property2' => 'value2',
        ],
    ];

Yii::createObject() will be used later to create the requested action using the configuration provided here.

public array actions ( )

checkAccess() public method

Checks the privilege of the current user.

This method should be overridden to check whether the current user has the privilege to run the specified action against the specified data model. If the user does not have access, a yii\web\ForbiddenHttpException should be thrown.

public void checkAccess ( $action, $model = null, $params = [] )
$action | string | The ID of the action to be executed
$model | object | The model to be accessed. If null, it means no specific model is being accessed.
$params | array | Additional parameters
throws | yii\web\ForbiddenHttpException | if the user does not have access

init() public method (available since version 2.0.36)

Initializes the object.

This method is invoked at the end of the constructor after the object is initialized with the given configuration.

public void init ( )

verbs() protected method

Declares the allowed HTTP verbs.

Please refer to yii\filters\VerbFilter::$actions on how to declare the allowed verbs.

protected array verbs ( )
return | array | The allowed HTTP verbs.