Doctrine createQuery() / iterate() not able to handle IF stmt in SQL? - doctrine-orm

Question

$qb = $this->em->createQuery("
SELECT
label.value AS label,
'link' AS productLink,
descr.value AS description,
IF (a.is_new = 1, 'new', NULL) AS 'condition',
....
");
$results = $qb->iterate();
gives the error:
exception 'Doctrine\ORM\Query\QueryException' with message
[Syntax Error] line 0, col 514: Error:
Expected known function, got IF
in /var/www/xxx/library/Doctrine/ORM/Query/QueryException.php:42
When I put the SQL into phpMyAdmin it works,.. is this a bug in Doctrine2 ?
Stacktrace:
Stack trace:
#0 /var/www/xxx/library/Doctrine/ORM/Query/Parser.php(380): Doctrine\ORM\Query\QueryException::syntaxError('line 0, col 514...')
#1 /var/www/xxx/library/Doctrine/ORM/Query/Parser.php(3001): Doctrine\ORM\Query\Parser->syntaxError('known function', Array)
#2 /var/www/xxx/library/Doctrine/ORM/Query/Parser.php(2975): Doctrine\ORM\Query\Parser->CustomFunctionDeclaration()
#3 /var/www/xxx/library/Doctrine/ORM/Query/Parser.php(1907): Doctrine\ORM\Query\Parser->FunctionDeclaration()
#4 /var/www/xxx/library/Doctrine/ORM/Query/Parser.php(1048): Doctrine\ORM\Query\Parser->SelectExpression()
#5 /var/www/xxx/library/Doctrine/ORM/Query/Parser.php(758): Doctrine\ORM\Query\Parser->SelectClause()
#6 /var/www/xxx/library/Doctrine/ORM/Query/Parser.php(727): Doctrine\ORM\Query\Parser->SelectStatement()
#7 /var/www/xxx/library/Doctrine/ORM/Query/Parser.php(213): Doctrine\ORM\Query\Parser->QueryLanguage()
#8 /var/www/xxx/library/Doctrine/ORM/Query/Parser.php(288): Doctrine\ORM\Query\Parser->getAST()
#9 /var/www/xxx/library/Doctrine/ORM/Query.php(230): Doctrine\ORM\Query\Parser->parse()
#10 /var/www/xxx/library/Doctrine/ORM/Query.php(241): Doctrine\ORM\Query->_parse()
#11 /var/www/xxx/library/Doctrine/ORM/AbstractQuery.php(686): Doctrine\ORM\Query->_doExecute()
#12 /var/www/xxx/library/Doctrine/ORM/Query.php(525): Doctrine\ORM\AbstractQuery->iterate(Array, 1)

Answer 1

No, it's not a bug. Doctrine2 does not support IF statement - same functionality can be achieved by CASE statement:
$qb = $this->em->createQuery("
SELECT
label.value AS label,
'link' AS productLink,
descr.value AS description,
(CASE
WHEN (a.is_new = :val) THEN 'new'
ELSE NULL
END) AS condition,
....
")
->setParameter('val' , 1);
$results = $qb->iterate();