i have a layout used by all my views and i need to assign a variable from a controller to this layout , if i use this method on a controller it doesn't work :
public function indexAction()
{
return new ViewModel( array(
'testvar' => 'bla',
));
}
anyone can help me ?
thanks
There are three ways to achieve this in ZF2 (in your controller):
First:
$this->layout()->someVariableName = 'Some value for the variable';
Second:
$this->layout()->setVariable('someVariableName', 'Some value for the variable');
Third:
$this->layout()->setVariables(array(
'someVariableName' => 'Some value for the variable',
'anotherVariable' => 'Some value for another variable',
);
echo $someVariableName;.Rob Allen has posted a great article about how to access view variables in another view model (e.g.: layout)
Basically the following code, placed inside your layout.phtml, will match your needs:
<?php
$children = $this->viewModel()->getCurrent()->getChildren();
$child = $children[0];
?>
<!-- some HTML -->
<?php echo $this->escape($child->myvar);?>
Have you tried:
$this->layout()->testvar = 'bla';
Using the layout controller plugin you can retrieve the ViewModel object that is used in layout.phtml.
Because ZF2 ViewModel is tree structure, the layout actually is the root node of ViewModel, the ViewModel in your controller will be add as a child node of layout.
You could access layout ViewModel by access MvcEvent, try this in your controller:
public function indexAction()
{
$events = $this->getServiceLocator()->get('Application')->getEventManager();
$events->attach(MvcEvent::EVENT_RENDER, array($this, 'setVariableToLayout'), 100);
}
public function setVariableToLayout($event)
{
$viewModel = $this->getEvent()->getViewModel();
$viewModel->setVariables(array(
'testvar' => 'bla',
));
}
See the add View Variable section below
add it in your module.php file.
You can also do this using view helper.
/**
* Remember to keep the init() method as lightweight as possible
*
* @param \Zend\ModuleManager\ModuleManager $moduleManager
*/
public function init(ModuleManager $moduleManager)
{
$events = $moduleManager->getEventManager();
$events->attach('loadModules.post', array($this, 'modulesLoaded'));
$events->attach('onBootstrap', array($this, 'bootstrap'));
$sharedEvents = $events->getSharedManager();
$sharedEvents->attach(__NAMESPACE__, 'bootstrap', array($this, 'bootstrap'), 100);
$sharedEvents->attach(__NAMESPACE__, 'bootstrap', array($this, 'initializeView'), 100);
$sharedEvents->attach(__NAMESPACE__, 'dispatch', array($this, 'addViewVariables'), 201);
}
/**
*
* @param \Zend\Mvc\MvcEvent $e
*/
public function loadConfiguration(MvcEvent $e)
{
$e->getApplication()->getServiceManager()
->get('ControllerPluginManager')->get('AclPlugin')
->checkAcl($e); //Auth/src/Auth/Controller/AclPlugin
}
/**
*
* @param \Zend\EventManager\EventInterface $e
*/
public function bootstrap(Event $e) {
$eventManager = $e->getParam('application')->getEventManager();
//$app->getEventManager()->attach('dispatch', array($this, 'checkAcl'), 100);
}
/**
* pass variables to layout
*
* @param \Zend\EventManager\EventInterface $e
*/
public function addViewVariables(Event $e)
{
$route = $e->getRouteMatch();
$viewModel = $e->getViewModel();
$variables = $viewModel->getVariables();
if (false === isset($variables['controller'])) {
$viewModel->setVariable('controller', $route->getParam('controller'));
}
if (false === isset($variables['action'])) {
$viewModel->setVariable('action', $route->getParam('action'));
}
$viewModel->setVariable('module', strtolower(__NAMESPACE__));
}
/**
*
* @param \Zend\Mvc\MvcEvent $e
*/
public function initializeView(Event $e)
{
}
and in your layout you can simply access those variables using their name such as $module, $action, $controller according to above example
If you want to pass values to your layout globally then you can refer this : https://stackoverflow.com/a/21455737/2190889
