How to update from subquery with query builder? - postgresql

Question

I'm using Symfony 5, Doctrine, and PostgreSQL.
In some Transaction Repository I'm trying to run the code below:
$queryBuilder = $this->em->createQueryBuilder('tr');
$queryBuilder2 = $this->em->createQueryBuilder('t');
$queryBuilder2->select('t.id', 't.status')
->where(
$queryBuilder->expr()->isNotNull('t.timeoutAt'),
$queryBuilder->expr()->lt('t.timeoutAt', ':timeoutAt'),
$queryBuilder->expr()->in('t.status', ':status')
)->setParameters([
'timeoutAt' => Carbon::now(TimezoneEnum::UTC),
'status' => ['pending', 'done'],
])->getDQL();
$queryBuilder->update()
->set(
't.status',
'CASE WHEN t.status = :statusPending THEN :statusDone ELSE :statusInProgress END'
)
->set('tr.updatedAt', ':updatedAt')
->from($queryBuilder2->getDQL(), 't')
->where('t.id = tr.id')
->setParameters([
'updatedAt' => Carbon::now(TimezoneEnum::UTC),
'statusPending' => 'pending',
'statusDone' => 'done',
'statusInProgress' => 'progress',
]);
After calling $queryBuilder->getQuery()->getResult(); I got an error:
Doctrine\ORM\Query\QueryException : [Syntax Error] line 0, col 37: Error: Expected Doctrine\ORM\Query\Lexer::T_SET, got ','
If to remove ->from($queryBuilder2->getDQL(), 't') error will be fixed, but I need this FROM.
Also $queryBuilder2->getQuery()->getResult() working perfect;
How to correctly put sql of $querybuilder2 to FROM part?

Answer 1

this should be what you want
it will update the status and the updatedAt, for only 'pending' and 'done' transations
the getSingleScalarResult() will let you know how much transactions got updated,
change it as you need
return $this->getEntityManager()
->createQueryBuilder()
->update(Transaction::class, 't')
->set('t.status', 'CASE WHEN t.status = :statusPending THEN :statusDone ELSE :statusInProgress END')
->set('t.updatedAt', ':updatedAt')
->where('t.status IN (:statuses)')
->andWhere('t.timeoutAt is NOT NULL')
->andWhere('t.timeoutAt < :timeoutAt')
->setParameter('statuses', ['pending', 'done'])
->setParameter('updatedAt', Carbon::now(TimezoneEnum::UTC))
->setParameter('statusPending','pending')
->setParameter('statusDone', 'done')
->setParameter('statusInProgress', 'progress')
->setParameter('timeoutAt', Carbon::now(TimezoneEnum::UTC))
->getQuery()
->getSingleScalarResult();