Doctrine query builder - nested queries, AS keyword, select functions - symfony

SELECT t1.field1 AS foo, (SELECT ABS(SUM(amount)) FROM table2 t2) FROM table1;
How can I convert this query into symfony 2 doctrine query builder?
$results = $this->getEntityManager()->createQueryBuilder()
->select(...)
//...

$results = $this->getEntityManager()->createQueryBuilder()
->select('t1.field1')
->addSelect('abs(sum(amount)) t2')
->from('BundleName:Entity', 't1)
->leftJoin('t1.field', 'another')
->getQuery()->getResult();
Maybe this works, I found a similar problem and a solution here:
Select Subquery with COUNT() in Doctrine DQL
Or if it not works, you can create two queries for the problem, and you use the first query's result in the second query.

Related

Query builder "addSelect" affects "addOrderBy"

I have Symfony 4 width Doctrine, two entities/tables with relation Fixture (one) - Picture (many). Both tables has column with name "order".
I am loading (eagerly) all fixtures and its pictures. I am trying to sort query result only by root entity.
It's working as expected when not using "addSelect" function.
$qb = $repository->createQueryBuilder('fixture');
$qb->innerJoin('fixture.pictures', 'pictures');
$qb->addOrderBy('fixture.order', 'ASC');
The result is:
SELECT f0_.name AS name_0, f0_.color AS color_1, f0_.`order` AS order_2, f0_.id AS id_3, f0_.valid_from AS valid_from_4, f0_.valid_to AS valid_to_5, f0_.disabled AS disabled_6 FROM fixture f0_ INNER JOIN fixture_picture f1_ ON f0_.id = f1_.fixture_id ORDER BY f0_.`order` ASC
But when I change it to
$qb = $repository->createQueryBuilder('fixture');
$qb->innerJoin('fixture.pictures', 'pictures');
$qb->addSelect('pictures'); //eager loading
$qb->addOrderBy('fixture.order', 'ASC');
I am getting:
SELECT f0_.name AS name_0, f0_.color AS color_1, f0_.`order` AS order_2, f0_.id AS id_3, f0_.valid_from AS valid_from_4, f0_.valid_to AS valid_to_5, f0_.disabled AS disabled_6, f1_.id AS id_7, f1_.`order` AS order_8, f1_.file_name AS file_name_9, f1_.file_path AS file_path_10, f1_.fixture_id AS fixture_id_11 FROM fixture f0_ INNER JOIN fixture_picture f1_ ON f0_.id = f1_.fixture_id ORDER BY f0_.`order` ASC, f1_.`order` ASC
I am really not sure why is there "f1_.order ASC". I also tried it with
$qb->addOrderBy('pictures.order', 'ASC');
and for this case it's working (it's sorted only by pictures).
TL;DR;
When using "$qb->addSelect('pictures');" in query builder, extra order by ", f1_.order ASC" is added in SQL query even only root entity should be sorted. It's working when "addSelect" is not used or when query is sorted by joined table 'pictures.order'
#ehymel was right. I had #ORM\OrderBy annotation used in Entity "Fixture" and forgot about it.

Doctrine Native query inside query builder join

I am working on a query on Doctrine 2 (with Symfony 2.8)
I have this query giving me relevant info:
$qb = $this->createQueryBuilder('ea');
$qb->join('ea.entity_b', 'eb')
->join('ea.entity_c', 'ec')
->join('ec.entity_d', 'ed')
->join('MainBundle:Entity_E', 'ee','WITH', 'ee.column1 = ea.id')
->join('MainBundle:Entity_F', 'ef', 'WITH', 'ea.column1 = ef.id');
Now, I need to add extra info to that query, but it comes from a native SQL, something like this:
SELECT * FROM DS ORDER BY id DESC LIMIT 1
And make sure that the id of the result from the native query is equal to ef.id
I hope I made any sense.
Thanks
Do you know DQL ?
Similar to SQL but adapted for Doctrine.
http://docs.doctrine-project.org/projects/doctrine-orm/en/latest/reference/dql-doctrine-query-language.html
You can then do queries like :
<?php
$query = $em->createQuery("SELECT u FROM User u JOIN u.address a WHERE a.city = 'Berlin'");
$users = $query->getResult();

Convert SQL into Doctrine 2 QueryBuilder

I need help to convert a valid SQL query into createQueryBuilder. The problem I have is I don't know how to LEFT JOIN on a SELECT in the createQueryBuilder.
SELECT username, count(c.user_owner_id) as num_contact, a_g.name as
group_name
FROM `oro_user` as u
INNER JOIN `oro_user_access_group` as u_g on u.id=u_g.user_id
INNER JOIN `oro_access_group` as a_g on u_g.group_id=a_g.id
LEFT JOIN
(SELECT cc.user_owner_id
FROM `orocrm_contact` as cc
INNER JOIN`orocrm_contact_to_contact_grp` as cc_g on cc_g.contact_id=cc.id
INNER JOIN `orocrm_contact_group`
as c_g on cc_g.contact_group_id=c_g.id
WHERE c_g.label='New One' and cc.semester_contacted='2017A')
as c on u.id=c.user_owner_id
WHERE a_g.name='Full-timer' and u.enabled = 1 and u.gender='male'
GROUP BY u.id
ORDER BY num_contact
I have two queries below, I want user to LEFT JOIN the results from contact
$user = $this->em->getRepository('OroUserBundle:User')->createQueryBuilder('u')
->select('u.username')
->innerJoin('u.groups','g')
->andWhere('g.name = :group')
->setParameter('group', 'Full-timer')
->getQuery();
$contacts = $this->em->getRepository('OroContactBundle:Contact')->createQueryBuilder('c')
->select('c')
->innerJoin('c.groups','g')
->andWhere('g.label = :group')
->andWhere('c.semester_contacted = :sem')
->setParameter('group', 'New One')
->setParameter('sem', '2017A')
->setMaxResults(1)
->getQuery();
This is a pretty complex queries and since the ORM QueryBuilder works closer to your entities than the database I'm not sure if you can just "dump" the DQL into a ->join(). The good news with the DBAL QueryBuilder that works:
$dbalQueryBuilder
->from('user_table as u')
...
->join('u', '('.$otherDbalQueryBuilder->getSQL().')', 'c')
This is from memory so it might be a little different, but something like that.
With that you can get all the fields you require, but you won't get any entities. Luckily Doctrine provides ways to build entities from Native SQL using ResultSetMapping.
$userWithContacts = $entityManager->createNativeQuery(
$dbalQueryBuilder->getSQL(),
$yourResultSetMapping
);
I know this is will require more code and is probably not as nice as just using the ORM QueryBuilder, but I find it oftentimes to be the best way to deal with existing queries that need to be ported to ORM somehow.

How to use a query builder object inside an IN clause of another query builder object

I need to create a query builder expression that use an IN statement where I want to put another query create by querybuilder too. In DQL, the query that i can get is:
SELECT u
FROM BundleUsuarioBundle:Usuario u
WHERE u.id IN (
SELECT u2.id
FROM BundleTramiteBundle:ExamenTeorico et
JOIN et.usuarioHabilitacion u2
WHERE u2.centro = :centro
) ORDER BY u.apellido ASC, u.nombre ASC
but i dont use that because I need put that in 'query_builder' option of an entity field of a form. So, i need a QB but I dont know how I can nest querybuilder expressions. I actually have the two queries in QueryBuilder format but separated:
$qb = $this->em->createQueryBuilder();
$qb
->select('usuario_habilitacion.id')
->from('BundleTramiteBundle:ExamenTeorico', 'examen_teorico')
->join('examen_teorico.usuarioHabilitacion', 'usuario_habilitacion');
$user = $this->getUser();
if ( !$this->esTipoASPV($user) ) {
$centro = $this->getCentro();
$qb
->andWhere($qb->expr()->eq('usuario_habilitacion.centro', ':centro'))
->setParameter(':centro', $centro->getId());
}
and:
$er
->createQueryBuilder('u')
->where($qb->expr()->in('u.id', ___???___ ))
->addOrderBy("u.apellido", "ASC")
->addOrderBy("u.nombre", "ASC");
You can get the result of your sub-query inside the first query but calling getDQL() and placing it inside a where clause in your first query. Make sure you select the id in the sub-query.
Example:
$qb->andWhere($qb->expr()->in('u.id', $er->getDQL()))

Doctrine ManyToMany Query

I have a Product Entity which has a ManyToMany relationship with a Taxon Entity. I want to find all the products that belong to the intersection of all Taxons. For instance I want to find all products that belong to taxons with IDs 1 and 2.
Products
{1,2,3}
Taxons
{1,2,3,4,5}
ProductsToTaxons
{{p1,t1},{p1,t2}, {p2,t2}}
I want to retrieve the following set ONLY when querying products for taxons 1 and 2:
Product
{1}
which is from {{p1,t1}, {p1,t2}}
Okay, So here is the DQL that i tried... but it doesn't work?
SELECT p FROM SRCProductBundle:Product p
JOIN p.taxons t
WHERE t.id = 1 AND t.id = 2
(P.S. I would also do this with QueryBuilder with as well)
EDIT
To clarify, here is the SQL that I would like to translate into DQL/QueryBuilder.
select p.id
from product p
where exists (select product_id
from product_to_taxon
where taxon_id = 1
and product_id = p.id)
and exists (select product_id
from product_to_taxon
where taxon_id = 4
and product_id = p.id);
You can use the MEMBER OF statement to achieve this although in my experience it hasn't produced very performant results with a ManyToMany relationship:
In DQL:
SELECT p FROM SRCProductBundle:Product p
WHERE 1 MEMBER OF p.taxons OR 2 MEMBER OF p.taxons
Or with Query builder
$this->createQueryBuilder('p')
->where(':taxon_ids MEMBER OF p.taxons')
->setParameter('taxon_ids', $taxonIdsArray)
->getQuery()
->getResult();
This will create SQL similar to the example provided although in my experience it still had a join in the EXISTS subqueries. Perhaps future versions of Doctrine can address this.
I think you want something like this:
$qb = $this
->createQueryBuilder('p')
->select('p.id')
;
$qb
->leftJoin('p.taxons', 'taxon1', Join::WITH, 'taxon1.id = :taxonId1')
->setParameter('taxonId1', 1)
->andWhere($qb->expr()->isNotNull('taxon1'))
->leftJoin('p.taxons', 'taxon2', Join::WITH, 'taxon2.id = :taxonId2')
->setParameter('taxonId2', 2)
->andWhere($qb->expr()->isNotNull('taxon2'))
;
Which is equivalent to the SQL:
SELECT p.id
FROM products p
LEFT JOIN taxons t1 ON (p.id = t1.product_id AND t1.id = 1)
LEFT JOIN taxons t2 ON (p.id = t2.product_id AND t2.id = 2)
WHERE t1.id IS NOT NULL
AND t2.id IS NOT NULL
;
Your DQL has wrong logic. You can't have a taxon with both id=1 and id=4. You could do it like this:
SELECT p FROM SRCProductBundle:Product p
JOIN p.taxons t
WHERE t.id = 1 OR t.id = 4
But I would prefer this way:
SELECT p FROM SRCProductBundle:Product p
JOIN p.taxons t
WHERE t.id IN (1, 4)
Using query builder that would look something like this, assuming you're in EntityRepository class:
$this->createQueryBuilder('p')
->join('p.taxons', 't')
->where('t.id IN :taxon_ids')
->setParameter('taxon_ids', $taxonIdsArray)
->getQuery()
->getResult();
For lack of a clean way to do this with DQL, and after a considerable amount of research, I resorted to doing this in Native SQL. Doctrine allows Native SQL via the EntityManager with createNativeQuery().
So in short, I utilized this ability and constructed the SQL query included in my question as a string and then passed it to the createNativeQuery() function.
This does appear to have some drawbacks as it appears I will be unable to use the KnpPaginatorBundle with it... So I might end up just filtering the results in PHP rather than SQL, which I'm hesitant to do as I think there are performance drawbacks.

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