How to query NOT NULL with Doctrine?

Question

I have table Test:

Test:
id | name 
1  | aaa
2  | 
3  | ccc
4  | aaa
5  | 
6  | ffffd

I want result where name is NOT NULL:

a         


        

Answer 1

Try this:

$this->createQuery('u')
     ->where('name IS NOT NULL')
     ->execute();

which is standard SQL syntax. Doctrine doesn't convert Null values into proper sql.

Answer 2

Do it in Doctrine way, from query builder and Expr class.

 $qb = $entityManager->createQueryBuilder();
 $result = $qb->select('t')
        ->from('Test','t')
        ->where($qb->expr()->isNotNull('t.name'))
        ->groupBy('t.name')
        ->getQuery()
        ->getResult();

there are also distinct() function.