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CAction

Package system.web.actions
Inheritance abstract class CAction » CComponent
Implements IAction
Subclasses CCaptchaAction, CInlineAction, CViewAction, CWebServiceAction
Since 1.0
Source Code framework/web/actions/CAction.php
CAction is the base class for all controller action classes.

CAction provides a way to divide a complex controller into smaller actions in separate class files.

Derived classes must implement run() which is invoked by controller when the action is requested.

An action instance can access its controller via controller property.

Public Properties

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PropertyTypeDescriptionDefined By
controller CController the controller who owns this action. CAction
id string id of this action CAction

Public Methods

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MethodDescriptionDefined By
__call() Calls the named method which is not a class method. CComponent
__construct() Constructor. CAction
__get() Returns a property value, an event handler list or a behavior based on its name. CComponent
__isset() Checks if a property value is null. CComponent
__set() Sets value of a component property. CComponent
__unset() Sets a component property to be null. CComponent
asa() Returns the named behavior object. CComponent
attachBehavior() Attaches a behavior to this component. CComponent
attachBehaviors() Attaches a list of behaviors to the component. CComponent
attachEventHandler() Attaches an event handler to an event. CComponent
canGetProperty() Determines whether a property can be read. CComponent
canSetProperty() Determines whether a property can be set. CComponent
detachBehavior() Detaches a behavior from the component. CComponent
detachBehaviors() Detaches all behaviors from the component. CComponent
detachEventHandler() Detaches an existing event handler. CComponent
disableBehavior() Disables an attached behavior. CComponent
disableBehaviors() Disables all behaviors attached to this component. CComponent
enableBehavior() Enables an attached behavior. CComponent
enableBehaviors() Enables all behaviors attached to this component. CComponent
evaluateExpression() Evaluates a PHP expression or callback under the context of this component. CComponent
getController() Returns the controller who owns this action. CAction
getEventHandlers() Returns the list of attached event handlers for an event. CComponent
getId() Returns id of this action CAction
hasEvent() Determines whether an event is defined. CComponent
hasEventHandler() Checks whether the named event has attached handlers. CComponent
hasProperty() Determines whether a property is defined. CComponent
raiseEvent() Raises an event. CComponent
runWithParams() Runs the action with the supplied request parameters. CAction

Protected Methods

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MethodDescriptionDefined By
runWithParamsInternal() Executes a method of an object with the supplied named parameters. CAction

Property Details

controller property read-only
public CController getController()

the controller who owns this action.

id property read-only
public string getId()

id of this action

Method Details

__construct() method
public void __construct(CController $controller, string $id)
$controller CController the controller who owns this action.
$id string id of the action.
Source Code: framework/web/actions/CAction.php#41 (show)
public function __construct($controller,$id)
{
    $this->_controller=$controller;
    $this->_id=$id;
}

Constructor.

getController() method
public CController getController()
{return} CController the controller who owns this action.
Source Code: framework/web/actions/CAction.php#50 (show)
public function getController()
{
    return $this->_controller;
}

getId() method
public string getId()
{return} string id of this action
Source Code: framework/web/actions/CAction.php#58 (show)
public function getId()
{
    return $this->_id;
}

runWithParams() method (available since v1.1.7)
public boolean runWithParams(array $params)
$params array the request parameters (name=>value)
{return} boolean whether the request parameters are valid
Source Code: framework/web/actions/CAction.php#70 (show)
public function runWithParams($params)
{
    $method=new ReflectionMethod($this, 'run');
    if($method->getNumberOfParameters()>0)
        return $this->runWithParamsInternal($this, $method, $params);

    $this->run();
    return true;
}

Runs the action with the supplied request parameters. This method is internally called by CController::runAction().

runWithParamsInternal() method (available since v1.1.7)
protected boolean runWithParamsInternal(mixed $object, ReflectionMethod $method, array $params)
$object mixed the object whose method is to be executed
$method ReflectionMethod the method reflection
$params array the named parameters
{return} boolean whether the named parameters are valid
Source Code: framework/web/actions/CAction.php#89 (show)
protected function runWithParamsInternal($object, $method, $params)
{
    $ps=array();
    foreach($method->getParameters() as $i=>$param)
    {
        $name=$param->getName();
        if(isset($params[$name]))
        {
            if(version_compare(PHP_VERSION,'8.0','>='))
                $isArray=($type=$param->getType()) instanceof \ReflectionNamedType && $type->getName()==='array';
            else
                $isArray=$param->isArray();

            if($isArray)
                $ps[]=is_array($params[$name]) ? $params[$name] : array($params[$name]);
            elseif(!is_array($params[$name]))
                $ps[]=$params[$name];
            else
                return false;
        }
        elseif($param->isDefaultValueAvailable())
            $ps[]=$param->getDefaultValue();
        else
            return false;
    }
    $method->invokeArgs($object,$ps);
    return true;
}

Executes a method of an object with the supplied named parameters. This method is internally used.