Ako zapísať query po fetchAll()

Ahojte

Ako prepíšem toto:

$this->ptbfz_virtuemart_product_manufacturersRepository->findAll()->where(array("virtuemart_product_id" => $productKe->product_id))->fetch();

Na niečo takéto

$result = $this->ptbfz_virtuemart_product_manufacturersRepository->findAll()->fetchAll();

$result->where(array("virtuemart_product_id" => $productKe->product_id)); // toto samozrejme nefunguje ale ako to napisat spravne?

dakujem