symfony2 doctrine select IFNULL
doctrine, ifnull, query-builder, symfony
Solution
Use COALESCE instead of IFNULL like this
$fields = array('COALESCE(s2.id,s1.id) AS effectiveID','COALESCE(s2.status, s1.status) AS effectiveStatus', 'COALESCE(s2.user_id, s1.user_id) as effectiveUser','COALESCE(s2.likes_count, s1.likes_count) as effectiveLikesCount');
COALESCE return the first value not null in the list, so if A is null and B not null, then `COALESCE(A,B)` will return B.
Problem
Ok i have this code: ``` SELECT IFNULL(s2.id,s1.id) AS effectiveID, IFNULL(s2.status, s1.status) AS effectiveStatus, IFNULL(s2.user_id, s1.user_id) as effectiveUser, IFNULL(s2.likes_count, s1.likes_count) as effectiveLikesCount FROM statuses AS s1 LEFT JOIN statuses AS s2 ON s2.id = s1.shared_from_id WHERE s1.user_id = 4310 ORDER BY effectiveID DESC LIMIT 15 ``` And i need to rewrite it to querybuilder. Something like that? ``` $fields = array('IFNULL(s2.id,s1.id) AS effectiveID','IFNULL(s2.status, s1.status) AS effectiveStatus', 'IFNULL(s2.user_id, s1.user_id) as effectiveUser','IFNULL(s2.likes_count, s1.likes_count) as effectiveLikesCount'); $qb=$this->_em->createQueryBuilder() ->select($fields) ->from('WallBundle:Status','s1') ->addSelect('u') ->where('s1.user = :user') ->andWhere('s1.admin_status = false') ->andWhere('s1.typ_statusu != :group') ->setParameter('user', $user) ->setParameter('group', 'group') ->leftJoin('WallBundle:Status','s2', 'WITH', 's2.id=s1.shared_from_id') ->innerJoin('s1.user', 'u') ->orderBy('s1.time', 'DESC') ->setMaxResults(15); var_dump($query=$qb->getQuery()->getResult());die(); ``` This error is ``` [Syntax Error] line 0, col 7: Error: Expected known function, got 'IFNULL' ```