private function getCustomerGroupFromPrice(Price $price)
    {
        $repository = $this->entityManager->getRepository(GroupModel::class);

        if (null === $price->getCustomerGroupIdentifier()) {
            return $repository->findOneBy(['key' => 'EK']);
        }

        $identity = $this->identityService->findOneBy(
            [
                'objectIdentifier' => (string) $price->getCustomerGroupIdentifier(),
                'objectType' => CustomerGroup::TYPE,
                'adapterName' => ShopwareAdapter::NAME,
            ]
        );

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

        return $repository->find($identity->getAdapterIdentifier());
    }
private function getCustomerGroupFromPrice(Price $price)
    {
        $repository = $this->entityManager->getRepository(GroupModel::class);

        if (null === $price->getCustomerGroupIdentifier()) {
            return $repository->findOneBy(['key' => 'EK']);
        }

        $identity = $this->identityService->findOneBy(
            [
                'objectIdentifier' => (string) $price->getCustomerGroupIdentifier(),
                'objectType' => CustomerGroup::TYPE,
                'adapterName' => ShopwareAdapter::NAME,
            ]
        );

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

        return $repository->find($identity->getAdapterIdentifier());
    }
@param Price $price

@return null|GroupModel