Doctrine Query Builder Delete Statement

I am using Symfony2, i must use the Doctrine QueryBuilder ( http://docs.doctrine-project.org/en/latest/reference/query-builder.html ) The documentation does not have an example for the delete or update statement.

My entity is :

  object(stdClass)[417]
        public '__CLASS__' => string 'Les\DataBundle\Entity\News' (length=26)
        public 'id' => int 1
        public 'restoId' => int 1
        public 'category' => string 'dessert' (length=7)
        public 'text' => string 'jlkdjsalkdj sa' (length=14)
        public 'dateCreated' => string 'DateTime' (length=8)
        public 'dateModified' => null

I am trying to delete a row in the database, but i keep getting the error:

   [Semantical Error] line 0, col 7 near 'News WHERE n.id': Error: Class 'News' is not defined.

My query is :

   $newsID =2 ;
    $qd = $repository->createQueryBuilder('n');
    $qd->delete('n')
        ->where('n.id = :id')
        ->setParameter('id',$newsID);
    $query = $qd->getQuery();
    $result = $query->getResult();

And would the update statement have the same structure?

For the delete statement is different from the select, you don't specify the column name for the delete unlike select.

Corrected Code

  $qd = $repository->createQueryBuilder('n');
    $qd->delete()
        ->where('n.id = :id')
        ->setParameter('id',$newsID);
    $query = $qd->getQuery();
    $result = $query->getResult();

Another Format

    $query = $this->getDoctrine()->getManager()->createQuery('delete FROM LesDataBundle:News n where n.id = '.$newsID);
    $result = $query->getResult();

For the Update Statement it is :

    $qd = $repository->createQueryBuilder('n');
    $qd->delete()
    $qd->update()
        ->set('n.text' , ':text')
        ->where('n.id = :id')
        ->setParameters( array('id'=> $newsID, 'text' => 'Hello World') );
    $query = $qd->getQuery();
    $result = $query->getResult();