Zend 3 onBootstrap get adapter - php

Question

I started using zend 3 a few months ago for a project and now I'm stuck.
I have a customized authentication (not using zend authentication module) which is working fine but I need to validate every time i access a redirected page.
Because on every page's url goes a token that is used to check in database, and I'm trying to do inside the function onBootStrap().
I learned to use factories, models, mappers and I'm currently using them in some controllers, but i can't find a way to achieve, at least if i could get the dbAdapter from the bootstrap event to use, it will be enough.
Any thoughts?

Answer 1

You can use lazy event for this job. here's you are a simple example.
public function onBootstrap(EventInterface $e)
{
/** #var \Interop\Container\ContainerInterface $container */
$container = $e->getApplication()->getserviceManager();
$events = $e->getApplication()->getEventManager();
$events->attach(MvcEvent::EVENT_ROUTE, new LazyListener([
'listener' => Listener::class,
'method' => 'onRoute'
], $container));
}
So you can check you auth on Listener class' "onRoute" method. If MvcEvent::ROUTE event is too early for you, you can use other MvcEvents too.
Hope this can solve your problem.

Answer 2

To get the adapter and use it in tablegateway
public function onBootstrap(EventInterface $event){
$container = $event->getApplication()->getServiceManager();
$dbAdapter = $container->get(AdapterInterface::class);
$resultSetPrototype = new ResultSet();
$resultSetPrototype->setArrayObjectPrototype(new TableObjectClass());
$tableGateway = new TableGateway("Table name", $dbAdapter, null, $resultSetPrototype);
$mapper = new TableObjectClassMapper($tableGateway);
//and use $mapper to get data from the table and store it as TableObjectClass
$data = $mapper->fetch()->current();
}