Zf2 changing layout - php

Question

I am trying to change the layout based on my routes, here what I have done until now:
<?php namespace Application\Listener;
use Zend\EventManager\AbstractListenerAggregate;
use Zend\EventManager\EventManagerInterface;
use Zend\Mvc\MvcEvent;
use Zend\View\Model\ModelInterface as Model;
class LayoutListener extends AbstractListenerAggregate
{
/**
* Attach one or more listeners
* Implementors may add an optional $priority argument; the EventManager
* implementation will pass this to the aggregate.
* #param EventManagerInterface $events
* #return void
*/
public function attach(EventManagerInterface $events)
{
$sharedEvents = $events->getSharedManager();
$this->listeners[] = $sharedEvents->attach(
'Zend\Mvc\Controller\AbstractController',
MvcEvent::EVENT_DISPATCH,
array($this, 'handleLayouts'),
-99);
}
public function handleLayouts(MvcEvent $event)
{
$viewModel = $event->getViewModel();
if (!$viewModel instanceof Model) {
return;
}
$routeMatch = $event->getRouteMatch();
$resolver = $event->getApplication()
->getServiceManager()
->get('Zend\View\Resolver\TemplatePathStack');
if ('Application\Controller\Index' !== $routeMatch->getParam('controller')) {
return;
}
switch ($routeMatch->getParam('action')) {
case 'index':
$template = 'layout/layout';
break;
case 'home':
$template = 'layout/home';
break;
default:
$template = null;
break;
}
/**
*
* Don't know why, but to set a template must use $event->getViewModel()
* and for terminal must use $event->getResult(), otherwise it won't works
*
*/
// if template is resolvable, use it, otherwise go terminal
if ($template && $resolver->resolve($template)) {
$viewModel->setTemplate($template);
} else {
if ($event->getResult() instanceof Model) {
$event->getResult()->setTerminal(true);
$viewModel->setTerminal(true);
}
}
}
}
Module.php
public function onBootstrap(MvcEvent $e)
{
$translator = $e->getApplication()->getServiceManager()->get('translator');
$translator->setLocale(\Locale::acceptFromHttp($_SERVER['HTTP_ACCEPT_LANGUAGE']))
->setFallbackLocale('en_US');
$eventManager = $e->getApplication()->getEventManager();
$eventManager->attachAggregate(new LayoutListener());
$moduleRouteListener = new ModuleRouteListener();
$moduleRouteListener->attach($eventManager);
}
There is one thing I don't get, if I want to change the layout, I must use
$event->getViewModel()->setTemplate($template);
otherwise it won't work, and if I want to set the viewModel terminal, I must use
$event->getResult()->setTerminal(true);
otherwise it won't work, can someone explain me why ?
What I'm trying to achieve it's the following: I have one template for index/ that initialize an iFrame loading the content of any other route, so in the index layout I have set up the menu and any other pages don't need to have a layout, as the index/ one is used.
Now I want a subpage having a custom layout (custom display) so, based on the route, I set a new layout to the viewmodel.

Answer 1

You can add child-views to your view-model (if you are in a Controller) - if you make an own controller for your subview (or subpage):
$view = new ViewModel(array(
// parameters
));
$view->addChild($this->forward()->dispatch('SubpageController', array(
'action' => 'index',
)), 'contentOfSubpage');
return $view;
in the template, you can access the contents of the SubpageController like this:
<?php echo $contentOfSubpage; ?>
at least, thats how you can combine multiple controllers, therefore different layouts