ZF2 - Set cookie in dispatch listener - php

Question

I would like to set a cookie in a listener, if the query parameter "source" is set. I tried the following but the cookie does not exist.
How can I set the cookie correct?
class DispatchListener extends AbstractListenerAggregate {
public function attach(EventManagerInterface $eventManager) {
$this->listeners[] = $eventManager->getSharedManager()->attach(
'Zend\Stdlib\DispatchableInterface',
MvcEvent::EVENT_DISPATCH,
array($this, 'setCookie'),
-80
);
}
/**
* #var \Zend\Stdlib\RequestInterface
*/
protected $request;
/**
* #param \Zend\Stdlib\RequestInterface $request
*/
public function __construct(RequestInterface $request) {
$this->request = $request;
}
public function setCookie(EventInterface $event) {
if ($source = $this->request->getQuery('source')) {
$this->request->setCookies([
'source' => $source
]);
}
}
}
--------------------------------- UPDATE -----------------------------------
class Module implements ConfigProviderInterface, BootstrapListenerInterface {
public function onBootstrap(EventInterface $event) {
$target = $event->getTarget();
$serviceManager = $target->getServiceManager();
$eventManager = $target->getEventManager();
$eventManager->attach($serviceManager->get('Application\Listener\Dispatch'));
}
}

Answer 1

Seems like there are a few issues with your code, which we can rule out first.
You haven't provided code for how you are attaching your listener
Not sure why you are setting the cookie on the request, do you want to do this on the response?
Attaching the event listener:
public function onBootstrap(MvcEvent $e)
{
$eventManager = $e->getApplication()->getEventManager();
$app = $e->getApplication();
$em = $app->getEventManager();
// Attach event to attach listener after routing when query will be populated
$em->attach(MvcEvent::EVENT_ROUTE, function($e) use ($eventManager) {
$request = $e->getRequest();
// attach our listener
$eventManager->attach(new DispatchListener($request));
});
}
Updated setCookie method:
public function setCookie(EventInterface $event) {
if ($source = $this->request->getQuery('source')) {
$this->request->setCookies([
'source' => $source
]);
$request = $this->request;
$cookieData = $request->getCookie('someCookie', 'default');
var_dump($cookieData);
}
}
The var_dump prints the following:
object(Zend\Http\Header\Cookie)[274]
protected 'encodeValue' => boolean true
private 'storage' (ArrayObject) =>
array (size=1)
'source' => string 'test' (length=4)

Answer 2

Do you want a cookie in your request object or do you want to create a cookie for the response. You probably want to create a cookie and set it on the response object.
Check for example this answer.
public function setCookie(EventInterface $event) {
if ($source = $this->request->getQuery('source')) {
$cookie = new \Zend\Http\Header\SetCookie('source', $source);
$headers = $this->getResponse()->getHeaders();
$headers->addHeader($cookie);
}
}