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Showing content from https://www.yiiframework.com/doc/api/2.0/yii-rest-activecontroller below:

ActiveController, yii\rest\ActiveController | API Documentation for Yii 2.0

Class yii\rest\ActiveController

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.

Property Details Method Details

Hide inherited methods

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 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 function __clone()
{
    $this->_events = [];
    $this->_eventWildcards = [];
    $this->_behaviors = null;
}

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

The ID of this controller.

$module yii\base\Module

The module that this controller belongs to.

$config array

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

                public function __construct($id, $module, $config = [])
{
    $this->id = $id;
    $this->module = $module;
    parent::__construct($config);
}

Defined in: yii\base\Component::__get()

Returns the value of a component property.

This method will check in the following order and act accordingly:

a property defined by a getter: return the getter result
a property of a behavior: return the behavior property value

Do not call this method directly as it is a PHP magic method that will be implicitly called when executing $value = $component->property;.

See also __set().

                public function __get($name)
{
    $getter = 'get' . $name;
    if (method_exists($this, $getter)) {
        
        return $this->$getter();
    }
    
    $this->ensureBehaviors();
    foreach ($this->_behaviors as $behavior) {
        if ($behavior->canGetProperty($name)) {
            return $behavior->$name;
        }
    }
    if (method_exists($this, 'set' . $name)) {
        throw new InvalidCallException('Getting write-only property: ' . get_class($this) . '::' . $name);
    }
    throw new UnknownPropertyException('Getting unknown property: ' . get_class($this) . '::' . $name);
}

Defined in: yii\base\Component::__isset()

Checks if a property is set, i.e. defined and not null.

This method will check in the following order and act accordingly:

a property defined by a setter: return whether the property is set
a property of a behavior: return whether the property is set
return false for non existing properties

Do not call this method directly as it is a PHP magic method that will be implicitly called when executing isset($component->property).

See also https://www.php.net/manual/en/function.isset.php.

                public function __isset($name)
{
    $getter = 'get' . $name;
    if (method_exists($this, $getter)) {
        return $this->$getter() !== null;
    }
    
    $this->ensureBehaviors();
    foreach ($this->_behaviors as $behavior) {
        if ($behavior->canGetProperty($name)) {
            return $behavior->$name !== null;
        }
    }
    return false;
}

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 function __set($name, $value)
{
    $setter = 'set' . $name;
    if (method_exists($this, $setter)) {
        
        $this->$setter($value);
        return;
    } elseif (strncmp($name, 'on ', 3) === 0) {
        
        $this->on(trim(substr($name, 3)), $value);
        return;
    } elseif (strncmp($name, 'as ', 3) === 0) {
        
        $name = trim(substr($name, 3));
        if ($value instanceof Behavior) {
            $this->attachBehavior($name, $value);
        } elseif ($value instanceof \Closure) {
            $this->attachBehavior($name, call_user_func($value));
        } elseif (isset($value['__class']) && is_subclass_of($value['__class'], Behavior::class)) {
            $this->attachBehavior($name, Yii::createObject($value));
        } elseif (!isset($value['__class']) && isset($value['class']) && is_subclass_of($value['class'], Behavior::class)) {
            $this->attachBehavior($name, Yii::createObject($value));
        } elseif (is_string($value) && is_subclass_of($value, Behavior::class, true)) {
            $this->attachBehavior($name, Yii::createObject($value));
        } else {
            throw new InvalidConfigException('Class is not of type ' . Behavior::class . ' or its subclasses');
        }
        return;
    }
    
    $this->ensureBehaviors();
    foreach ($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).

See also https://www.php.net/manual/en/function.unset.php.

                public function __unset($name)
{
    $setter = 'set' . $name;
    if (method_exists($this, $setter)) {
        $this->$setter(null);
        return;
    }
    
    $this->ensureBehaviors();
    foreach ($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);
}

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 function actions()
{
    return [
        'index' => [
            'class' => 'yii\rest\IndexAction',
            'modelClass' => $this->modelClass,
            'checkAccess' => [$this, 'checkAccess'],
        ],
        'view' => [
            'class' => 'yii\rest\ViewAction',
            'modelClass' => $this->modelClass,
            'checkAccess' => [$this, 'checkAccess'],
        ],
        'create' => [
            'class' => 'yii\rest\CreateAction',
            'modelClass' => $this->modelClass,
            'checkAccess' => [$this, 'checkAccess'],
            'scenario' => $this->createScenario,
        ],
        'update' => [
            'class' => 'yii\rest\UpdateAction',
            'modelClass' => $this->modelClass,
            'checkAccess' => [$this, 'checkAccess'],
            'scenario' => $this->updateScenario,
        ],
        'delete' => [
            'class' => 'yii\rest\DeleteAction',
            'modelClass' => $this->modelClass,
            'checkAccess' => [$this, 'checkAccess'],
        ],
        'options' => [
            'class' => 'yii\rest\OptionsAction',
        ],
    ];
}

Defined in: yii\rest\Controller::afterAction()

This method is invoked right after an action 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);
    
    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)
{
    $result = parent::afterAction($action, $result);
    return $this->serializeData($result);
}

                public function asJson($data)
{
    $this->response->format = Response::FORMAT_JSON;
    $this->response->data = $data;
    return $this->response;
}

                public function asXml($data)
{
    $this->response->format = Response::FORMAT_XML;
    $this->response->data = $data;
    return $this->response;
}

                public function attachBehavior($name, $behavior)
{
    $this->ensureBehaviors();
    return $this->attachBehaviorInternal($name, $behavior);
}

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\web\Controller::beforeAction()

This method is invoked right before an action 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;
    }

    

    return true; 
}

                public function beforeAction($action)
{
    if (parent::beforeAction($action)) {
        if ($this->enableCsrfValidation && Yii::$app->getErrorHandler()->exception === null && !$this->request->validateCsrfToken()) {
            throw new BadRequestHttpException(Yii::t('yii', 'Unable to verify your data submission.'));
        }
        return true;
    }
    return false;
}

Defined in: yii\rest\Controller::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 function behaviors()
{
    return [
        'contentNegotiator' => [
            'class' => ContentNegotiator::className(),
            'formats' => [
                'application/json' => Response::FORMAT_JSON,
                'application/xml' => Response::FORMAT_XML,
            ],
        ],
        'verbFilter' => [
            'class' => VerbFilter::className(),
            'actions' => $this->verbs(),
        ],
        'authenticator' => [
            'class' => CompositeAuth::className(),
        ],
        'rateLimiter' => [
            'class' => RateLimiter::className(),
        ],
    ];
}

Defined in: yii\web\Controller::bindActionParams()

Binds the parameters to the action.

This method is invoked by yii\base\Action when it begins to run with the given parameters. This method will check the parameter names that the action requires and return the provided parameters according to the requirement. If there is any missing parameter, an exception will be thrown.

                public function bindActionParams($action, $params)
{
    if ($action instanceof InlineAction) {
        $method = new \ReflectionMethod($this, $action->actionMethod);
    } else {
        $method = new \ReflectionMethod($action, 'run');
    }
    $args = [];
    $missing = [];
    $actionParams = [];
    $requestedParams = [];
    foreach ($method->getParameters() as $param) {
        $name = $param->getName();
        if (array_key_exists($name, $params)) {
            $isValid = true;
            $isArray = ($type = $param->getType()) instanceof \ReflectionNamedType && $type->getName() === 'array';
            if ($isArray) {
                $params[$name] = (array)$params[$name];
            } elseif (is_array($params[$name])) {
                $isValid = false;
            } elseif (
                PHP_VERSION_ID >= 70000
                && ($type = $param->getType()) !== null
                && method_exists($type, 'isBuiltin')
                && $type->isBuiltin()
                && ($params[$name] !== null || !$type->allowsNull())
            ) {
                $typeName = PHP_VERSION_ID >= 70100 ? $type->getName() : (string)$type;
                if ($params[$name] === '' && $type->allowsNull()) {
                    if ($typeName !== 'string') { 
                        $params[$name] = null;
                    }
                } else {
                    switch ($typeName) {
                        case 'int':
                            $params[$name] = filter_var($params[$name], FILTER_VALIDATE_INT, FILTER_NULL_ON_FAILURE);
                            break;
                        case 'float':
                            $params[$name] = filter_var($params[$name], FILTER_VALIDATE_FLOAT, FILTER_NULL_ON_FAILURE);
                            break;
                        case 'bool':
                            $params[$name] = filter_var($params[$name], FILTER_VALIDATE_BOOLEAN, FILTER_NULL_ON_FAILURE);
                            break;
                    }
                    if ($params[$name] === null) {
                        $isValid = false;
                    }
                }
            }
            if (!$isValid) {
                throw new BadRequestHttpException(
                    Yii::t('yii', 'Invalid data received for parameter "{param}".', ['param' => $name])
                );
            }
            $args[] = $actionParams[$name] = $params[$name];
            unset($params[$name]);
        } elseif (
            PHP_VERSION_ID >= 70100
            && ($type = $param->getType()) !== null
            && $type instanceof \ReflectionNamedType
            && !$type->isBuiltin()
        ) {
            try {
                $this->bindInjectedParams($type, $name, $args, $requestedParams);
            } catch (HttpException $e) {
                throw $e;
            } catch (Exception $e) {
                throw new ServerErrorHttpException($e->getMessage(), 0, $e);
            }
        } elseif ($param->isDefaultValueAvailable()) {
            $args[] = $actionParams[$name] = $param->getDefaultValue();
        } else {
            $missing[] = $name;
        }
    }
    if (!empty($missing)) {
        throw new BadRequestHttpException(
            Yii::t('yii', 'Missing required parameters: {params}', ['params' => implode(', ', $missing)])
        );
    }
    $this->actionParams = $actionParams;
    
    if (Yii::$app->requestedParams === null) {
        Yii::$app->requestedParams = array_merge($actionParams, $requestedParams);
    }
    return $args;
}

protected void bindInjectedParams ( ReflectionType $type, $name, &$args, &$requestedParams ) $type ReflectionType

The reflected type of the action parameter.

$name string

The name of the parameter.

$args array

The array of arguments for the action, this function may append items to it.

$requestedParams array

The array with requested params, this function may write specific keys to it.

throws yii\base\ErrorException

when we cannot load a required service.

throws yii\base\InvalidConfigException

Thrown when there is an error in the DI configuration.

throws yii\di\NotInstantiableException

Thrown when a definition cannot be resolved to a concrete class (for example an interface type hint) without a proper definition in the container.

                final protected function bindInjectedParams(\ReflectionType $type, $name, &$args, &$requestedParams)
{
    
    $typeName = $type->getName();
    if (($component = $this->module->get($name, false)) instanceof $typeName) {
        $args[] = $component;
        $requestedParams[$name] = 'Component: ' . get_class($component) . " \$$name";
    } elseif ($this->module->has($typeName) && ($service = $this->module->get($typeName)) instanceof $typeName) {
        $args[] = $service;
        $requestedParams[$name] = 'Module ' . get_class($this->module) . " DI: $typeName \$$name";
    } elseif (\Yii::$container->has($typeName) && ($service = \Yii::$container->get($typeName)) instanceof $typeName) {
        $args[] = $service;
        $requestedParams[$name] = "Container DI: $typeName \$$name";
    } elseif ($type->allowsNull()) {
        $args[] = null;
        $requestedParams[$name] = "Unavailable service: $name";
    } else {
        throw new Exception('Could not load required service: ' . $name);
    }
}

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;
}

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|null

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

                public function checkAccess($action, $model = null, $params = [])
{
}

Deprecated since 2.0.14. On PHP >=5.5, use ::class instead.

                public static function className()
{
    return get_called_class();
}

Defined in: yii\base\Controller::createAction()

Creates an action based on the given action ID.

The method first checks if the action ID has been declared in actions(). If so, it will use the configuration declared there to create the action object. If not, it will look for a controller method whose name is in the format of actionXyz where xyz is the action ID. If found, an yii\base\InlineAction representing that method will be created and returned.

                public function createAction($id)
{
    if ($id === '') {
        $id = $this->defaultAction;
    }
    $actionMap = $this->actions();
    if (isset($actionMap[$id])) {
        return Yii::createObject($actionMap[$id], [$id, $this]);
    }
    if (preg_match('/^(?:[a-z0-9_]+-)*[a-z0-9_]+$/', $id)) {
        $methodName = 'action' . str_replace(' ', '', ucwords(str_replace('-', ' ', $id)));
        if (method_exists($this, $methodName)) {
            $method = new \ReflectionMethod($this, $methodName);
            if ($method->isPublic() && $method->getName() === $methodName) {
                return new InlineAction($id, $this, $methodName);
            }
        }
    }
    return null;
}

                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;
}

                public function detachBehaviors()
{
    $this->ensureBehaviors();
    foreach ($this->_behaviors as $name => $behavior) {
        $this->detachBehavior($name);
    }
}

                public function ensureBehaviors()
{
    if ($this->_behaviors === null) {
        $this->_behaviors = [];
        foreach ($this->behaviors() as $name => $behavior) {
            $this->attachBehaviorInternal($name, $behavior);
        }
    }
}

                public function findLayoutFile($view)
{
    $module = $this->module;
    $layout = null;
    if (is_string($this->layout)) {
        $layout = $this->layout;
    } elseif ($this->layout === null) {
        while ($module !== null && $module->layout === null) {
            $module = $module->module;
        }
        if ($module !== null && is_string($module->layout)) {
            $layout = $module->layout;
        }
    }
    if ($layout === null) {
        return false;
    }
    if (strncmp($layout, '@', 1) === 0) {
        $file = Yii::getAlias($layout);
    } elseif (strncmp($layout, '/', 1) === 0) {
        $file = Yii::$app->getLayoutPath() . DIRECTORY_SEPARATOR . substr($layout, 1);
    } else {
        $file = $module->getLayoutPath() . DIRECTORY_SEPARATOR . $layout;
    }
    if (pathinfo($file, PATHINFO_EXTENSION) !== '') {
        return $file;
    }
    $path = $file . '.' . $view->defaultExtension;
    if ($view->defaultExtension !== 'php' && !is_file($path)) {
        $path = $file . '.php';
    }
    return $path;
}

                public function getBehavior($name)
{
    $this->ensureBehaviors();
    return isset($this->_behaviors[$name]) ? $this->_behaviors[$name] : null;
}

                public function getBehaviors()
{
    $this->ensureBehaviors();
    return $this->_behaviors;
}

Defined in: yii\base\Controller::getModules()

Returns all ancestor modules of this controller.

The first module in the array is the outermost one (i.e., the application instance), while the last is the innermost one.

                public function getModules()
{
    $modules = [$this->module];
    $module = $this->module;
    while ($module->module !== null) {
        array_unshift($modules, $module->module);
        $module = $module->module;
    }
    return $modules;
}

public string getRoute ( ) return string

The route (module ID, controller ID and action ID) of the current request.

                public function getRoute()
{
    return $this->action !== null ? $this->action->getUniqueId() : $this->getUniqueId();
}

                public function getUniqueId()
{
    return $this->module instanceof Application ? $this->id : $this->module->getUniqueId() . '/' . $this->id;
}

                public function getView()
{
    if ($this->_view === null) {
        $this->_view = Yii::$app->getView();
    }
    return $this->_view;
}

                public function getViewPath()
{
    if ($this->_viewPath === null) {
        $this->_viewPath = $this->module->getViewPath() . DIRECTORY_SEPARATOR . $this->id;
    }
    return $this->_viewPath;
}

                public function goBack($defaultUrl = null)
{
    return $this->response->redirect(Yii::$app->getUser()->getReturnUrl($defaultUrl));
}

                public function goHome()
{
    return $this->response->redirect(Yii::$app->getHomeUrl());
}

                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\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 object.

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

                public function init()
{
    parent::init();
    if ($this->modelClass === null) {
        throw new InvalidConfigException('The "modelClass" property must be set.');
    }
}

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;
    
    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;
        }
    }
    
    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]);
            
            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 ($event) { ... }         
[$object, 'handleClick']          
['Page', 'handleClick']           
'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]);
    }
}

public yii\web\Response redirect ( $url, $statusCode = 302 ) $url string|array

The URL to be redirected to. This can be in one of the following formats:

a string representing a URL (e.g. "https://example.com")
a string representing a URL alias (e.g. "@example.com")
an array in the format of [$route, ...name-value pairs...] (e.g. ['site/index', 'ref' => 1]) yii\helpers\Url::to() will be used to convert the array into a URL.

Any relative URL that starts with a single forward slash "/" will be converted into an absolute one by prepending it with the host info of the current request.

$statusCode integer

The HTTP status code. Defaults to 302. See https://tools.ietf.org/html/rfc2616#section-10 for details about HTTP status code

return yii\web\Response

The current response object

                public function redirect($url, $statusCode = 302)
{
    
    return $this->response->redirect(Url::to($url), $statusCode);
}

public yii\web\Response refresh ( $anchor = '' ) $anchor string

The anchor that should be appended to the redirection URL. Defaults to empty. Make sure the anchor starts with '#' if you want to specify it.

return yii\web\Response

The response object itself

                public function refresh($anchor = '')
{
    return $this->response->redirect($this->request->getUrl() . $anchor);
}

Defined in: yii\base\Controller::render()

Renders a view and applies layout if available.

The view to be rendered can be specified in one of the following formats:

path alias (e.g. "@app/views/site/index");
absolute path within application (e.g. "//site/index"): the view name starts with double slashes. The actual view file will be looked for under the view path of the application.
absolute path within module (e.g. "/site/index"): the view name starts with a single slash. The actual view file will be looked for under the view path of $module.
relative path (e.g. "index"): the actual view file will be looked for under $viewPath.

To determine which layout should be applied, the following two steps are conducted:

In the first step, it determines the layout name and the context module:

If $layout is specified as a string, use it as the layout name and $module as the context module;
If $layout is null, search through all ancestor modules of this controller and find the first module whose layout is not null. The layout and the corresponding module are used as the layout name and the context module, respectively. If such a module is not found or the corresponding layout is not a string, it will return false, meaning no applicable layout.

In the second step, it determines the actual layout file according to the previously found layout name and context module. The layout name can be:

a path alias (e.g. "@app/views/layouts/main");
an absolute path (e.g. "/main"): the layout name starts with a slash. The actual layout file will be looked for under the layout path of the application;
a relative path (e.g. "main"): the actual layout file will be looked for under the layout path of the context module.

If the layout name does not contain a file extension, it will use the default one .php.

public string render ( $view, $params = [] ) $view string

The view name.

$params array

The parameters (name-value pairs) that should be made available in the view. These parameters will not be available in the layout.

return string

The rendering result.

throws yii\base\InvalidArgumentException

if the view file or the layout file does not exist.

                public function render($view, $params = [])
{
    $content = $this->getView()->render($view, $params, $this);
    return $this->renderContent($content);
}

Defined in: yii\web\Controller::renderAjax()

Renders a view in response to an AJAX request.

This method is similar to renderPartial() except that it will inject into the rendering result with JS/CSS scripts and files which are registered with the view. For this reason, you should use this method instead of renderPartial() to render a view to respond to an AJAX request.

public string renderAjax ( $view, $params = [] ) $view string

The view name. Please refer to render() on how to specify a view name.

$params array

The parameters (name-value pairs) that should be made available in the view.

return string

The rendering result.

                public function renderAjax($view, $params = [])
{
    return $this->getView()->renderAjax($view, $params, $this);
}

public string renderContent ( $content ) $content string

The static string being rendered

return string

The rendering result of the layout with the given static string as the $content variable. If the layout is disabled, the string will be returned back.

                public function renderContent($content)
{
    $layoutFile = $this->findLayoutFile($this->getView());
    if ($layoutFile !== false) {
        return $this->getView()->renderFile($layoutFile, ['content' => $content], $this);
    }
    return $content;
}

                public function renderFile($file, $params = [])
{
    return $this->getView()->renderFile($file, $params, $this);
}

                public function renderPartial($view, $params = [])
{
    return $this->getView()->render($view, $params, $this);
}

Defined in: yii\base\Controller::run()

Runs a request specified in terms of a route.

The route can be either an ID of an action within this controller or a complete route consisting of module IDs, controller ID and action ID. If the route starts with a slash '/', the parsing of the route will start from the application; otherwise, it will start from the parent module of this controller.

See also runAction().

public mixed run ( $route, $params = [] ) $route string

The route to be handled, e.g., 'view', 'comment/view', '/admin/comment/view'.

$params array

The parameters to be passed to the action.

return mixed

The result of the action.

                public function run($route, $params = [])
{
    $pos = strpos($route, '/');
    if ($pos === false) {
        return $this->runAction($route, $params);
    } elseif ($pos > 0) {
        return $this->module->runAction($route, $params);
    }
    return Yii::$app->runAction(ltrim($route, '/'), $params);
}

public mixed runAction ( $id, $params = [] ) $id string

The ID of the action to be executed.

$params array

The parameters (name-value pairs) to be passed to the action.

return mixed

The result of the action.

throws yii\base\InvalidRouteException

if the requested action ID cannot be resolved into an action successfully.

                public function runAction($id, $params = [])
{
    $action = $this->createAction($id);
    if ($action === null) {
        throw new InvalidRouteException('Unable to resolve the request: ' . $this->getUniqueId() . '/' . $id);
    }
    Yii::debug('Route to run: ' . $action->getUniqueId(), __METHOD__);
    if (Yii::$app->requestedAction === null) {
        Yii::$app->requestedAction = $action;
    }
    $oldAction = $this->action;
    $this->action = $action;
    $modules = [];
    $runAction = true;
    
    foreach ($this->getModules() as $module) {
        if ($module->beforeAction($action)) {
            array_unshift($modules, $module);
        } else {
            $runAction = false;
            break;
        }
    }
    $result = null;
    if ($runAction && $this->beforeAction($action)) {
        
        $result = $action->runWithParams($params);
        $result = $this->afterAction($action, $result);
        
        foreach ($modules as $module) {
            
            $result = $module->afterAction($action, $result);
        }
    }
    if ($oldAction !== null) {
        $this->action = $oldAction;
    }
    return $result;
}

Defined in: yii\rest\Controller::serializeData()

Serializes the specified data.

The default implementation will create a serializer based on the configuration given by $serializer. It then uses the serializer to serialize the given data.

protected mixed serializeData ( $data ) $data mixed

The data to be serialized

return mixed

The serialized data.

                protected function serializeData($data)
{
    return Yii::createObject($this->serializer)->serialize($data);
}

                public function setView($view)
{
    $this->_view = $view;
}

                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 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);
            
            if ($event->handled) {
                return;
            }
        }
    }
    
    Event::trigger($this, $name, $event);
}

                protected function verbs()
{
    return [
        'index' => ['GET', 'HEAD'],
        'view' => ['GET', 'HEAD'],
        'create' => ['POST'],
        'update' => ['PUT', 'PATCH'],
        'delete' => ['DELETE'],
    ];
}

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