bug #10544: create new resource on update if not found

[dimaip]

Resolves: https://github.com/Sylius/Sylius/issues/10544

[vvasiloi]

It should probably be conditional, since it's only for PUT requests, the PATCH should return 404 if the resource does not exists.

        if ($request->isMethod(Request::METHOD_PUT)) {
            $resource = $this->findOrCreate($configuration);            
        } else {
            $resource = $this->findOr404($configuration);
        }

[vvasiloi]

This has to be added before

https://github.com/Sylius/SyliusResourceBundle/blob/master/src/Bundle/Controller/ResourceUpdateHandler.php#L41

        if (!$manager->contains($resource)) {
            $manager->persist($resource);
        }

Otherwise new resources won't be created.

[dimaip]

Ah, I was just wondering why it didn't update anything. Will test.

[dimaip]

Duh, I just realised I haven't updated this PR. Feel free to take over or I'll try to find the time to finish it later, after the project launch.