在ZF2路由未找到异常时调度Controller的操作

Question

I want want dispatch another controller action when Zf2 raise route not found exception to display my custom page ( i dont want to display a custom error page). I am working on dynamic url from database in Zf2 which will occur only when route not found. i added a event in bootstrap function

$event->attach('route', array($this, 'loadConfiguration'), 2);

in loadConfiguration function i added to load

public function loadConfiguration(MvcEvent $e){
    $application   = $e->getApplication();
    $sm = $application->getServiceManager();
    $router = $sm->get('router');
    $request = $sm->get('request');
    $matchedRoute = $router->match($request);
if (null == $matchedRoute) { 
        $request_uri = $e->getRequest()->getrequestUri();
        $dbAdaptor = $e->getApplication()->getServiceManager()->get('Zend\Db\Adapter\Adapter');
        $url_table = new UrlMappingTable($dbAdaptor);
        $url_data = $url_table->find($request_uri);
        $controller = $url_data['controller'];
        $action = $url_data['action'];
        $id = $url_data['post_id'];
        $original_url = $url_data['original_url'];
        $alias = $sm->get('Application\Router\Alias');

            $alias->setNavigation($original_url);

        if(isset($url_data)){
        $url = $e->getRouter ()->assemble (array('controller' => $controller,
                                                     'action' => $action ,
                                                      'id' => $id,
                                              ), array (
                                            'name' => 'myurl'
                                            ) );
       }

 print 'no route match';
 }
}

after getting the controller and action i just want the dispatcher to forward this controller.

Answer 1

Just something not really answering your question:

I am working on dynamic url from database in Zf2 which will occur only when route not found.

There are two ways you can achieve this much more efficiently. If there aren't much routes, you can load them before the route event. For example, you query on bootstrap all your database routes and inject them into the route stack.

Another way is creating a "catch all" route which always will match after all routes failed. Then you don't have a "route not found" but your default route is matched. This will then look for a matching database record. If none found, you just return a 404 response.

In case #1, the controller mapped by your database route is directly dispatched. In the second case, you are in your "database controller" and want to dispatch your controller mapped by the database route, you use the forward plugin:

public function matchAction()
{
    // Fetch route from db here

    if (!$match) {
        $this->getResponse()->setStatusCode(404);
        return;
    }

    return $this->forward($match->getController, array(
        'action' => $match->getAction()
    ));
}