I perform a simple query like this to fetch an association with episodes:
$query = $this->getEntityManager()
->createQuery('
SELECT p,e
FROM AcmeDemoBundle:Place p
LEFT JOIN p.episodes e
WHERE p.id = :id'
)
->setParameter('id',$id);
This is a simple asso:
/**
* #ORM\OneToMany(targetEntity="Episode", mappedBy="place")
*/
protected $episodes;
This works well. Now, I don't want to fetch episodes, but simply the place object (and nothing else):
$query = $this->getEntityManager()
->createQuery('
SELECT p
FROM AcmeDemoBundle:Place p
LEFT JOIN p.episodes e
WHERE p.id = :id'
)
->setParameter('id',$id);
This is still loading episodes by lazy-loading. Is there a way to avoid lazy-loading in that case?
Many thanks.
Like this:
$query = $this->getEntityManager()
->createQuery('
SELECT p
FROM AcmeDemoBundle:Place p
WHERE p.id = :id'
)
->setParameter('id',$id);
$query->setHint(Query::HINT_FORCE_PARTIAL_LOAD, true);
Related
How can I LEFT and add WHERE condition?
It doesn't read the where it brings all the ridedriver object?
SELECT p
FROM RideDriverEmployeeBundle:Ridedriver p
LEFT JOIN Chaya3niUserBundle:Bookings b WITH b.idridedriver = p.id
WHERE p.frequency IS NOT NULL
AND p.nbrplaces > 0
AND b.iduser != 2
OR b.iduser IS NULL
If I understand your question correctly it is probably an issue with your WHERE clause. Try using parantheses with the OR portion of the clause.
SELECT p
FROM RideDriverEmployeeBundle:Ridedriver p
LEFT JOIN Chaya3niUserBundle:Bookings b WITH b.idridedriver = p.id
WHERE p.frequency IS NOT NULL
AND p.nbrplaces > 0
AND (b.iduser != 2 OR b.iduser IS NULL)
To answer the question you asked in the comments..
i want to select all the driverrides except the one that the user already booked in
Sounds like you just do not want the other conditions you have in your WHERE clause.
SELECT p
FROM RideDriverEmployeeBundle:Ridedriver p
LEFT JOIN Chaya3niUserBundle:Bookings b WITH b.idridedriver = p.id
WHERE b.iduser IS NULL
By doing a LEFT JOIN and then only taking records that did not exist in the joined table with WHERE .. IS NULL, this is doing a LEFT OUTER JOIN.
In your case Ridedriver is Table A and Bookings is Table B, so this will return records in Ridedriver that do not join to anything in Bookings.
I have the following Named query on my spring-data repository:
#Query("FROM Pedido p JOIN FETCH p.status ps WHERE ps.status IN (?1) AND ps.id IN (SELECT MAX(ps2.id) FROM PedidoStatus ps2 GROUP BY ps2.pedido)")
I'm trying to achieve the same result using the Criteria API and spring-data Specifications, this is what I have so far:
public static Specification<Pedido> byUltimoStatus(final List<PedidoStatus.StatusPedido> ultimoStatus) {
return new Specification<Pedido>() {
public Predicate toPredicate(Root<Pedido> root, CriteriaQuery<?> query, CriteriaBuilder builder) {
Expression<PedidoStatus.StatusPedido> status = root.join("status").get("status");
Predicate predicateByStatus = status.in(ultimoStatus);
final Subquery<Long> subQuery = query.subquery(Long.class);
final Root<PedidoStatus> ps = subQuery.from(PedidoStatus.class);
Expression<Long> psId= ps.get("id");
Expression<Long> maxId = builder.max(psId);
subQuery.select(maxId);
subQuery.groupBy(ps.get("pedido").get("id"));
Predicate predicateByUltimoStatus = builder.in(root.join("status").get("id")).value(subQuery);
return builder.and(predicateByStatus, predicateByUltimoStatus);
}
};}
It's still not working, looks like there is an extra
INNERJOIN PedidoStatus
in the result query.
This is the result of the #Query:
select ... from Pedido pedido0_ inner join PedidoStatus status1_ on pedido0_.id=status1_.pedido where (status1_.status in (? , ?)) and (status1_.id in (select max(pedidostat2_.id) from PedidoStatus pedidostat2_ group by pedidostat2_.pedido))
And this is the result of the Criteria API:
select ... from Pedido pedido0_ inner join PedidoStatus status1_ on pedido0_.id=status1_.pedido inner join PedidoStatus status2_ on pedido0_.id=status2_.pedido where (pedido0_.id is not null) and status1_.status IN (?, ?) and (status2_.id in (select max(pedidostat3_.id) from PedidoStatus pedidostat3_ group by pedidostat3_.pedido))
Knowing that this is a very old question, it looks to me like the reason for the duplicate INNERJOIN in the query generated by a CriteriaQuery is that the code building the query, does actually invoke root.join("status") twice. The result of the first invocation should be saved into a local variable, so you can reuse it, instead of joining twice.
First you do:
Expression<PedidoStatus.StatusPedido> status = root.join("status").get("status");
And later you do:
Predicate predicateByUltimoStatus = builder.in(root.join("status").get("id")).value(subQuery);
I'm trying to do a simple select query with a subquery in the SELECT clause and have simply not found a way to do it. I've tried with both DQL and with the QueryBuilder, neither work. The code follows, please don't say I could just use a join, this is a simplified example just to illustrate the problem, I have legitimate use cases for subqueries.
// With QueryBuilder
$query = $qb->select(array('a',
'(SELECT at.addresstypeName
FROM e:Addresstype at
WHERE at.addresstypeId = a.addresstypeId
) AS addresstypeName'))
->from('e:Address', 'a')
->where('a.addressId = :addressId')
->setParameter('addressId', 1);
// With DQL
$dql = "SELECT a,
(SELECT at.addresstypeName
FROM e:Addresstype at
WHERE at.addresstypeId = a.addresstypeId
) AS addresstypeName
FROM e:Address a
WHERE a.addressId = :addressId";
$query = $em->createQuery($dql)->setParameter(':addressId', 1);
The following relationship is defined on the Address table:
/**
* #ORM\ManyToOne(targetEntity="Addresstype")
* #ORM\JoinColumns({
* #ORM\JoinColumn(name="addresstype_id", referencedColumnName="addresstype_id")
* })
*/
protected $addresstype;
In native SQL, the query would look like this:
SELECT
a.*,
(
SELECT at.addresstype_name
FROM addresstype at
WHERE at.addresstype_id = a.addresstype_id
) AS addresstype_name
FROM address a
WHERE a.address_id = 1
Any ideas?
$query = $qb->select('a')
->addSelect('(SELECT at.addresstypeName
FROM e:Addresstype at
WHERE at.addresstypeId = a.addresstypeId) AS addresstypeName'
)
->from('e:Address', 'a')
->where('a.addressId = :addressId')
->setParameter('addressId', 1);
For me subquery with doctrine works with this query :
$qb->select('e.field')
->addSelect('(SELECT count(mv.nm)
FROM Clt\Bundle\MyBundle\Entity\MV mv
LEFT JOIN Clt\Bundle\MyBundle\Entity\M ma WITH mv.nm=ma.nm
WHERE mv.ne=e.ne and ma.nm is null
) AS nm'
)
->from($this->_entityName, 'e')
->leftJoin('e.m', 'm')
->where($qb->expr()->eq('t.id'.$typeModule, $idElementModule));
Note that in the left join you must use WITH instead of ON...
I know this is an old question, but if you want, you could have used another query builder as your subquery:
$qb->select("a")
->addSelect("(" . $qb2->select("at.addresstypeName")
->from("e:Addresstype", "at")
->where("at.addresstypeId = a.addresstypeId")
->getDQL() . ") AS addresstypeName"
)
->from('e:Address', 'a')
->where('a.addressId = :addressId')
->setParameter('addressId', 1);
In my scenario what I needed was to look into a join and find an Id and use it as boolean, found 1 otherwise 0, then applying this to orderBy. DQL expressions worked only when combined with Where clause, which wasn't my case. So, a DQL subselect saved me.
Adapted more or less to your scenario, it would look like this:
// With QueryBuilder
// In AddressRepository
// Where one address may belong to several addressTypes
public function getWithType($addressType){
$qb = $this->createQueryBuilder('a1');
$qb->addSelect('a1.someField', 'a1.otherField')
$qb->addSelect(
'(SELECT at.addressTypeName
FROM App\Entity\Address a2
JOIN a2.addressType at
WHERE at.id = '.$addressType.' AND a2.id = a1.id
) AS addressTypeName')
//The rest part of the query
}
I trying to write a query (with subquery) but i don't know how set a limit in my subquery.
My query:
$query_ids = $this->getEntityManager()
->createQuery(
"SELECT e_.id
FROM MuzichCoreBundle:Element e_
WHERE [...]
GROUP BY e_.id")
->setMaxResults(5)
;
$query_select = "SELECT e
FROM MuzichCoreBundle:Element e
WHERE e.id IN (".$query_ids->getDql().")
ORDER BY e.created DESC, e.name DESC"
;
$query = $this->getEntityManager()
->createQuery($query_select)
->setParameters($params)
;
But ->setMaxResults(5) doesn't work. No 'LIMIT' in the SQL query. Can we do simple LIMIT with doctrine 2 ?
$query_ids = $this->getEntityManager()
->createQuery(
"SELECT e_.id
FROM MuzichCoreBundle:Element e_
WHERE [...]
GROUP BY e_.id")
->setMaxResults(5)
->setMaxResults($limit)
;
HERE in the second query the result of the first query should be passed ..
$query_select = "SELECT e
FROM MuzichCoreBundle:Element e
WHERE e.id IN (".$query_ids->getResult().")
ORDER BY e.created DESC, e.name DESC"
;
$query = $this->getEntityManager()
->createQuery($query_select)
->setParameters($params)
->setMaxResults($limit);
;
$resultCollection = $query->getResult();
I use Doctrine\ORM\Tools\Pagination\Paginator for this, and it works perfectly (doctrine 2.2).
$dql = "SELECT p, c FROM BlogPost p JOIN p.comments c";
$query = $entityManager->createQuery($dql)
->setFirstResult(0)
->setMaxResults(10);
$paginator = new Paginator($query, $fetchJoinCollection = true);
Your setMaxResults($limit) needs to be set on the object.
e.g.
$query_ids = $this->getEntityManager()
->createQuery(
"SELECT e_.id
FROM MuzichCoreBundle:Element e_
WHERE [...]
GROUP BY e_.id")
;
$query_ids->setMaxResults($limit);
$limit=5; // for exemple
$query = $this->getDoctrine()->getEntityManager()->createQuery(
'// your request')
->setMaxResults($limit);
$results = $query->getResult();
// Done
$qb = $this->getDoctrine()->getManager()->createQueryBuilder();
$qb->select('p') ->from('Pandora\UserBundle\Entity\PhoneNumber', 'p');
$qb->where('p.number = :number');
$qb->OrWhere('p.validatedNumber=:number');
$qb->setMaxResults(1);
$qb->setParameter('number',$postParams['From'] );
$result = $qb->getQuery()->getResult();
$data=$result[0];
I have a query
SELECT d.name, count(e.id) FROM department d LEFT OUTER JOIN employee e on e.department_id = d.id and e.salary > 5000
and how i can convert this to jpa
right now i have:
CriteriaQuery<Object[]> criteria = builder.createQuery(Object[].class);
Root<Department> root = criteria.from(Department.class);
Path<String> name = root.get("name");
Expression<Long> empCount = builder.count(root.get("employees").get("id"));
criteria.multiselect(name,empCount);
TypedQuery<Object[]> query = em.createQuery(criteria);
I simplified both examples by removing ordering and grouping
can anyone tell me how i can modifie my jpa code to get same reslults like from my sql query
thanks in advance
You're not far from the result. The problem is that, AFAIK, you can't add any restriction on the on clause, using JPA. So the query wil have to be rewritten as
SELECT d.name, count(e.id) FROM department d
LEFT OUTER JOIN employee e on e.department_id = d.id
where (e.id is null or e.salary > 5000)
Here is the equivalent of this query not tested):
CriteriaQuery<Object[]> criteria = builder.createQuery(Object[].class);
Root<Department> root = criteria.from(Department.class);
Path<String> name = root.get("name");
Join<Department, Employee> employee = root.join("employees", JoinType.LEFT);
Expression<Long> empCount = builder.count(employee.get("id"));
criteria.multiselect(name,empCount);
criteria.where(builder.or(builder.isNull(employee.get("id")),
builder.gt(employee.get("salary"), 5000)));
TypedQuery<Object[]> query = em.createQuery(criteria);