Query with EXISTS for Doctrine Symfony2

doctrine, query-builder, symfony

Solution

You either need to use two query builders:

$queryBuilder->expr()->exists($subQueryBuilder->getDql());

or use DQL directly:

$queryBuilder->expr()->exists('SELECT * 
    FROM r 
    WHERE r.t_id = t.id 
    AND r.status = 1'
);

You'll find more examples in the docs: http://www.doctrine-project.org/projects/doctrine-orm/en/current/reference/query-builder.html

Note: You have to set parameters in the main query, even though they're used in the exists (Thanks Vadim Ashikhman).

Problem

How can I implement the following query with Query Builder? ``` SELECT * FROM t WHERE t.status = 1 OR EXISTS(SELECT * FROM r WHERE r.t_id = t.id AND r.status = 1 ) ``` The part without exist check is easy, but is there a way to implement the `EXISTS`?

Original source