Doctrine Query Builder Length - symfony

Question

how to reproduce in query builder this
AND LENGTH( CONCAT_WS('', lsc.door_code, lsc.alarm_code, lsc.service_code, lsc.master_log) ) > 0"
I try like this
$orX = $qb->expr()->orX();
$orX
->add($qb->expr()->length('lsc.doorCode > 0'))
->add($qb->expr()->length('lsc.alarmCode > 0'))
->add($qb->expr()->length('lsc.serviceCode > 0'))
->add($qb->expr()->length('lsc.masterLog > 0'));
$qb->andWhere($orX);
have error:
[Syntax Error] line 0, col 549: Error: Expected Doctrine\ORM\Query\Lexer::T_CLOSE_PARENTHESIS, got '>'
and my query
SELECT
CONCAT(
IFNULL(location.name, ''),' (',IFNULL(location.streetAddress, ''),' ',IFNULL(location.staircase, ''),' ',IFNULL(location.flatNumber, ''),' ',IFNULL(location.postal, ''),' ',IFNULL(location.postOffice, ''),')') as address,
lsc.doorCode,
lsc.serviceCode,
lsc.alarmCode,
lsc.masterLog
FROM AppBundle:LocationServiceCompany lsc INNER JOIN lsc.location location WHERE lsc.serviceCompany = :sc AND (LENGTH(lsc.doorCode > 0) OR LENGTH(lsc.alarmCode > 0) OR LENGTH(lsc.serviceCode > 0) OR LENGTH(lsc.masterLog > 0))
how to use length ?

Answer 1

I came here because I had similar problem with using length in query builder.
I tried ($qb->expr()->length('lsc.doorCode > 0') as suggested above but it did not work. The SQL output of this is "LENGTH(lsc.doorCode > 0)" which throws an error.
My solution to this problem is:
$qb->expr()->gt($qb->expr()->length('lsc.doorCode'), 0)
which generates "LENGTH(lsc.doorCode) > 0" that is correct SQL syntax.

Answer 2

You have a typo here:
$orX = $qb->expr()->orX();
$orX
->add($qb->expr()->length('lsc.doorCode > 0')); <--
->add($qb->expr()->length('lsc.alarmCode > 0'))
->add($qb->expr()->length('lsc.serviceCode > 0'))
->add($qb->expr()->length('lsc.masterLog > 0'));
$qb->andWhere($orX);
remove the ; and get rid of the syntax error.
And for the concat length, you can try something like this:
$query->andWhere("LENGTH( CONCAT_WS('', lsc.door_code, lsc.alarm_code, lsc.service_code, lsc.master_log) ) > 0")
After the update
You can run native SQL queries with Doctrine like mentioned here:
http://docs.doctrine-project.org/projects/doctrine-orm/en/latest/reference/native-sql.html#the-nativequery-class
For reference:
<?php
use Doctrine\ORM\Query\ResultSetMapping;
$rsm = new ResultSetMapping();
// build rsm here
$query = $entityManager->createNativeQuery('SELECT id, name, discr FROM users WHERE name = ?', $rsm);
$query->setParameter(1, 'romanb');
$users = $query->getResult();
If your updated query works, this would be a way to make it work.