Doctrine QueryBuilder HAVING expression

Question

OK, so I'm rewriting some code, using Doctrine ORM (2.5).

The old code creates a query that has something like this:

SELECT * FROM couples INNER JOIN individuals ON (couples.id = individuals.couple_id)
GROUP BY couples.id
HAVING SUM(individuals.date_of_birth <= '1976-01-01') > 0

I have no clue how to implement this best using the Doctrine QueryBuilder. This is a very simplified example, the real query is much longer and has a few HAVING clauses, all of which use SUM(some_condition) > 0 to ensure that only Couples that contain a matching Individual will be retrieved.

I can add having clauses in Doctrine using $queryBuilder->having() , but I cannot do so using the SUM() function. Any ideas?

Answer 1

Actually, there is nothing stopping you from using sum together with having :

$queryBuilder
    ->select('couple, individual')
    ...
    ->having('sum(individual.date_of_birth) > 0');

The sum() function of the query builder, actually takes in two arguments and returns a mathematical expression which is not what you're after.

When you use sum on a field like in the example above, that's actually the aggregating function.

Another thing to keep in mind in your case is that, according to the documentation , every having() call overrides all previously set having conditions. So if you want to use multiple of these, use andHaving and orHaving .

I hope this explains it.