How to get controller and action name in zf2

问题:

in zf1, we can get controller and action name using

$controller = $this->getRequest()->getControllerName();
$action = $this->getRequest()->getActionName();

How we can achieve this in zf2?

UPDATE: I tried to get them using

echo $this->getEvent()->getRouteMatch()->getParam('action', 'NA');
echo $this->getEvent()->getRouteMatch()->getParam('controller', 'NA');

But I am getting error

Fatal error: Call to a member function getParam() on a non-object

I like to get them in __construct() method;

Ideally I would like to check if there is no Action is defined it will execute noaction() method. I would check using php method method_exists.

回答1:

Even simpler:

$controllerName =$this->params('controller');
$actionName = $this->params('action');

回答2:

you can't access these variables in controller __construct() method, but you can access them in dispatch method and onDispatch method.

but if you would like to check whether action exist or not, in zf2 there is already a built in function for that notFoundAction as below

 public function notFoundAction()
{
    parent::notFoundAction();
    $response = $this->getResponse();
    $response->setStatusCode(200);
    $response->setContent("Action not found");
    return $response;   
} 

but if you still like to do it manually you can do this using dispatch methods as follow

namespace Mynamespace\Controller;

use Zend\Mvc\Controller\AbstractActionController;

use Zend\Stdlib\RequestInterface as Request;
use Zend\Stdlib\ResponseInterface as Response;
use Zend\Mvc\MvcEvent;

class IndexController extends AbstractActionController 
{

    public function __construct()
    {


    }        

      public function notFoundAction()
    {
        parent::notFoundAction();
        $response = $this->getResponse();
        $response->setStatusCode(200);
        $response->setContent("Action not found");
        return $response;   
    }

    public function dispatch(Request $request, Response $response = null)
    {
        /*
         * any customize code here
         */

        return parent::dispatch($request, $response);
    }
    public function onDispatch(MvcEvent $e)
    {
        $action = $this->params('action');
        //alertnatively 
        //$routeMatch = $e->getRouteMatch();
        //$action = $routeMatch->getParam('action', 'not-found');

        if(!method_exists(__Class__, $action."Action")){
           $this->noaction();
        }

        return parent::onDispatch($e);
    }
    public function noaction()
    {        
        echo 'action does not exits';   
    }
}   

回答3:

You will get module , controller and action name like this in Zf2 inside your controller...

$controllerClass = get_class($this);
$moduleNamespace = substr($controllerClass, 0, strpos($controllerClass, '\\'));
$tmp = substr($controllerClass, strrpos($controllerClass, '\\')+1 );
$controllerName = str_replace('Controller', "", $tmp);

//set 'variable' into layout...
$this->layout()->currentModuleName      = strtolower($moduleNamespace);
$this->layout()->currentControllerName  = strtolower($controllerName);
$this->layout()->currentActionName      = $this->params('action');

回答4:

$controllerName = strtolower(Zend_Controller_Front::getInstance()->getRequest()->getControllerName());