Basically I want to execute this mysql query with doctrine:
select distinct user_id from work_hour where project_id = ?;
But I don't know how I can do this with pretty Doctrine code. Is it possible to make it look like the following pseudo code or do I have to use the query builder?:
$project = new Project();
...
$entities = $em->getRepository('AppBundle:WorkHour')
->findByProject($project)->selectUser()->distinct();
Where $entities is an array of User objects
WorkHour and Project have a ManyToOne relation
WorkHour and User have a ManyToOne relation
You'll need to use a QueryBuilder for that, but that would still be quite a "pretty Doctrine code" and would still look quite like your pseudo-code.
Something like this should work:
$queryBuilder = $em->createQueryBuilder();
$query = queryBuilder
->select('u')
->distinct()
->from('AppBundle:User', 'u')
->join('AppBundle:WorkHour', 'wh')
->where('u.workHour = wh')
->andWhere('wh.project = :project')
->getQuery();
$query->setParameter(':project', $project);
$entities = $query->getResult();
public function findByProject($project)
{
$qb = $this->getEntityManager()->createQueryBuilder('User');
$qb
->select('User')
->from('Path\Bundle\Entity\User', 'User')
->join('Path\Bundle\Entity\WorkHour', 'wh',
'WITH', 'User.workHour = wh')
->where('wh.project = :project'))
->distinct()
->setParameter('project', $project)
;
$query = $qb->getQuery();
return $query->getResult();
}
If you have a complicated query you should do it in QueryBuilder, it'll be more efficient.
http://doctrine-orm.readthedocs.org/en/latest/reference/query-builder.html
If you have complicated queries you shouldn't do it directly into the controller, it shouldn't know this logic, you have to do it in the repository and call it from there
Related
I have for example two tables: Parent and Children. They have relations many-to-many between each other. Everything is working well, but I don't know how to use where clause in query builder for this.
My code:
$parent = $em->getRepository('AppBundle:Parent')->find(1);
$qb = $em->createQueryBuilder();
$qb->select('c, p')
->from('AppBundle:Children', 'c')
->leftJoin('c.parents', 'p')
->where('p.id = :parent')
->setParameter('parent', $parent)
;
$childrens = $qb->getQuery()->getResult();
This always return me null.
I know - I can use $parent->getChildrens(), but I would like use createQueryBuilder for AppBundle:Children.
How should the where clause look?
I'm kinda stuck on using the querybuilder to create a join query.
There is a table called "Person" and a table called "Vacancy". If a person is linked to the vacancy the person.id and vacancy.id is saved in a table called "Candidacy". So how do I get all the persons who are linke to vacancy.id 1?
So where do I have to initiate the AppBundle:Candidacy entity?
$entity = $em
->getRepository('AppBundle:Person')
->createQueryBuilder('p')
->join('p.id', 'c')
->where('c.vacancyId= 1')
->getQuery()
->getResult();
Thank you in advance.
Example in your repository :
public function getPersonVacancy($personId) {
$qb = $this->createQueryBuilder('p');
$qb->leftJoin('p.vacancy', 'v');
$qb->select('v.name', 'v.id');
$qb->where('p.id = :personId');
$qb->setParameter('personId', $personId);
return $qb ->getQuery()->getResult();
This is to give you an example it may not work with copy paste.
Also, all join methods are explained in doctrine documentation, feel free to read it http://docs.doctrine-project.org/projects/doctrine-orm/en/latest/reference/query-builder.html
Looks like you have many-to-many relation.
You should link your Person and Vacancy table through Candidacy to Person and then Vacancy to Candidacy.
small example: Entity User is attached to Engagement via UserEngagement table.
$qb = $this->_em->createQueryBuilder()
->select('u')
->from($this->_entityName, 'u')
->join('u.userEngagements', 'ue')
->join('ue.engagement', 'en')
...
I have a query which looks like below:
SELECT *
FROM mydb.users
left join mydb.job on
users.id = job.userid;
Now I am using doctrine orm in querying database but I am newbie here.
What I have done so far is below but it doesn't work as expected.
$em = $this->getEntityManager();
$qb = $em->createQueryBuilder();
$qb->select(array('a', 'c'))
->from('Admin\Entity\User', 'a')
->leftJoin('a.id', 'c');
$query = $qb->getQuery();
$results = $query->getResult();
return $results;
you do not need the from clause and array from clause select
$em = $this->getEntityManager();
$qb = $em->createQueryBuilder('u');
$qb->select('u', 'j')
->leftJoin('u.jobs', 'j')
$query = $qb->getQuery();
$results = $query->getResult();
return $results;
it is mandatory that your users entity contains a "one to many" jobs for the attribute.
trick to display the SQL output :
var_dump($qb->getQuery()->getSQL());
I have two entities which are connected through a 1:1 relationship, e.g: MyEntity.idRelatedEntity
I want to create a Doctrine query where I can retrieve data from MyEntity depending on a value from a certain column in RelatedEntity. Something like this (it doesn't work of course):
$entity = $em
->getRepository('MyBundle:RelatedEntity')
->createQueryBuilder('e')
->leftJoin('MyBundle:RelatedEntity', 'r')
->where('r.foo = 1')
->getQuery()
->getResult();
Any help would be much appreciated :)
$entity = $em
->getRepository('MyBundle:MyEntity')
->createQueryBuilder('e')
->join('e.idRelatedEntity', 'r')
->where('r.foo = 1')
->getQuery()
->getResult();
Also left join makes no sense here (because of where clause that will make it work like inner join)
Note that you should write this query in your MyEntityRepository
public function getMyEntityWithRelatedEntity($parameter)
{
$query = $this->createQueryBuilder('e')
->addSelect('r') // to make Doctrine actually use the join
->leftJoin('e.relatedEntity', 'r')
->where('r.foo = :parameter')
->setParameter('parameter', $parameter)
->getQuery();
return $query->getResult();
}
And then use it in your controller/service :
$manager = $this->getDoctrine()->getManager();
$results = $manager->getRepository(MyEntity::class)->getMyEntityWithRelatedEntity(1);
I'm using Doctrine 2.
I want to get all Entities of an entity class except for the one with id = 0.
I could use QueryBuilder like this:
// $em is EntityManager
$em->createQueryBuilder()
->select('c')
->from('Category', 'c')
->where('c.id <> 0')
->getQuery()
->getResult();
But looking at this code, it feels like too much for such a simple task.
I'm curious to know if there is any other simpler way in Doctrine for doing this.
Nop, that's how you should do it. You could omit query builder and pass entire DQL query:
$em->createQuery("SELECT c FROM Category c WHERE c.id != 0")->getResult();
It's not the better practice to pass the ID number, you might pass the Category object like this :
public function findAllExcept($category) {
$qb = $this->createQueryBuilder('Category');
$qb->add('select', 'c')
->add('from', 'Category c')
->add('where', 'c != :category')
->setParameter('category', $category);
return $qb->getQuery()->getResult();
}
For comparisons and conditions I recommend use Doctrine as well. It will save your time in case of switch between databases, for instance MySQL to PostgreSQL:
$this->createQueryBuilder()
->select('c')
->from('Category', 'c')
->where($qb->expr()->neq('c.id', '?1'))
->setParameter('1', $category)
->getQuery()
->getResult()