public function search($keyword)
    {
        $query = 'SELECT v
FROM VelvelZDFBundle:Video v
WHERE v.title LIKE  :keyword
OR v.subtitle LIKE  :keyword
OR v.description LIKE  :keyword
ORDER BY
CASE WHEN v.title LIKE  :keyword
AND v.subtitle LIKE :keyword
AND v.description LIKE :keyword
THEN 0
WHEN v.title LIKE  :keyword
AND v.subtitle LIKE :keyword
THEN 1
WHEN v.title LIKE  :keyword
AND v.description LIKE :keyword
THEN 2
WHEN v.subtitle LIKE :keyword
AND v.description LIKE :keyword
THEN 3
WHEN v.title LIKE :keyword
THEN 4
WHEN v.subtitle LIKE :keyword
THEN 5
WHEN v.description LIKE :keyword
THEN 6
END ASC , id DESC';

        return $this->em->createQuery($query)->setParameter('keyword', '%' . $keyword . '%')->getResult();
    }