Symfony 4 - KnpPaginator Bundle “service not found, even though it exists in app's container”

Question

I have been following tutorials, and all instructions show it\'s done the exact same way, but it doesn\'t seem to work in Symfony 4. Is there something I\'m overlooking or i

Answer 1

In my case i'm using symfony 4.3, I just injected the class to the methods as an argument and i'm done.

public function list(ProductManager $productManager)
{ 
   $products = $productManager->prepareProducts(); 
   return $products;
}

Answer 2

In my case I use AbstractController and as malcolm says, it is beter to inject the service directrly in your action, even so, I call a method several times and I think that overwrite getSubscribedServices is clener for my porpuse.

public static function getSubscribedServices(): array
{
    $services = parent::getSubscribedServices();
    $services['fos_elastica.manager'] = RepositoryManagerInterface::class;
    $services['knp_paginator'] = PaginatorInterface::class;

    return $services;
}

private function listHandler(Search $search, Request $request, int $page): Response
{
    //...
    $repository = $this->container->get('fos_elastica.manager')->getRepository(Foo::class);
    //...

}

Answer 3

As it says in the documentation. You must extend the base Controller class, or use dependency injection instead https://symfony.com/doc/current/service_container.html#service-parameters

Answer 4

You have to extend Controller instead of AbstractController class:

use Symfony\Bundle\FrameworkBundle\Controller\Controller;

class MyController extends Controller
{

    public function myAction()
    {
        $paginator  = $this->get('knp_paginator');

or better leave AbstractController and inject knp_paginator service into your action:

use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Knp\Component\Pager\PaginatorInterface;

class MyController extends AbstractController
{

    public function myAction(PaginatorInterface $paginator)
    {
        $paginator->paginate()...
    }