Elcodi\Admin\CoreBundle\Controller\Abstracts\AbstractStatsController::getTotalsByInterval PHP Метод

    protected function getTotalsByInterval($entity, DateTime $from = null, DateTime $to = null)
    {
        $namespace = $this->container->getParameter($entity);
        $queryBuilder = $this->get('elcodi.provider.manager')->getManagerByEntityNamespace($namespace)->createQueryBuilder()->select('count(x.id)')->from($namespace, 'x');
        if (is_null($to)) {
            $to = new DateTime();
        }
        if (!is_null($from)) {
            $queryBuilder->andWhere('x.createdAt >= ?1')->andWhere('x.createdAt <= ?2')->setParameters([1 => $from, 2 => $to]);
        }
        return $queryBuilder->getQuery()->getSingleScalarResult();
    }