src/EventListener/RequestPostInitializeListener.php
public function initializeRequest(GenericEvent $event)
    {
        $request = null;
        if (null !== $this->requestStack) {
            $request = $this->requestStack->getCurrentRequest();
        }

        if (null === $request) {
            return;
        }

        $request->attributes->set('easyadmin', [
            'entity' => $entity = $event->getArgument('entity'),
            'view' => $request->query->get('action', 'list'),
            'item' => ($id = $request->query->get('id')) ? $this->findCurrentItem($entity, $id) : null,
        ]);
    }
public function initializeRequest(GenericEvent $event)
    {
        $request = null;
        if (null !== $this->requestStack) {
            $request = $this->requestStack->getCurrentRequest();
        }

        if (null === $request) {
            return;
        }

        $request->attributes->set('easyadmin', [
            'entity' => $entity = $event->getArgument('entity'),
            'view' => $request->query->get('action', 'list'),
            'item' => ($id = $request->query->get('id')) ? $this->findCurrentItem($entity, $id) : null,
        ]);
    }
Adds to the request some attributes with useful information, such as the
current entity and the selected item, if any.

@param GenericEvent $event