FactoryGirl\Provider\Doctrine\ORM\Repository::attemptQuery PHP Method

    private function attemptQuery($do, $fallback = null)
    {
        if (null === $fallback) {
            $fallback = function () {
            };
        }
        try {
            return $do();
        } catch (\Doctrine\ORM\NoResultException $e) {
            return $fallback($e);
        } catch (\Doctrine\ORM\NonUniqueResultException $e) {
            return $fallback($e);
        }
    }