Symfony的。 按实体ID计算实体属性的行数

I have an article entity. Article has property views. Views table looks like

id | article_id | ip

unique(article_id, ip)

Now I do the following, i modify findAll method in ArticleRepository. Is it a right way or i can do it in article entity?

Thx for any help.

/**
 * Class ArticleRepository
 *
 * @package FrontendBundle\Entity
 */
class ArticleRepository extends EntityRepository
{
    /**
     * @return array
     */
    public function findAll()
    {
        if ($all = parent::findAll()) {
            foreach ($all as $article) {
                $article->setViews($this->getViews($article->getId()));
            }
        }

        return $all;
    }
    /**
     * Add view to article.
     *
     * @param int    $id Article id.
     * @param string $ip User clients ip
     */
    public function addView($id, $ip)
    {
        try
        {
            $this->_em->getConnection()->insert('articles_views', [
                'article_id' => $id,
                'ip'         => $ip
            ]);
        }
        catch(UniqueConstraintViolationException  $e)
        {
            // do nothing
        }
    }

    /**
     * Return views for article.
     * @param int $id
     *
     * @return mixed
     * @throws NonUniqueResultException If the query result is not unique.
     * @throws NoResultException        If the query returned no result.
     */
    public function getViews($id)
    {
        // here is custom sql query to get count rows from articles_views
    }

$qb = $this->createQueryBuilder('t');
return $qb
    ->select('count(t.views)')
    ->getQuery()
    ->getSingleScalarResult();