I got DQL like this:
$sql =$qb->select('login,id')
->from('Cusomter','c')
->where('c.login = :login')
->setParameter('login',$login);
$rs = $sql->getQuery()->getResult();
I want the result would return as object with 2 properties: Login,id.
Is there anyway i can do that? I tried CustomHydrator but it won't work out.
this is my CustomHydrator:
namespace Hydrator;
use Doctrine\ORM\Internal\Hydration\AbstractHydrator;
class CustomHydrator extends AbstractHydrator
{
protected function hydrateAllData()
{
return $this->_stmt->fetchAll(\PDO::FETCH_ASSOC);
}
}
Then i added $em->getConfiguration()->addCustomHydrationMode('CustomHydrator', 'Hydrator\CustomHydrator');
and run :$rs = $sql->getQuery()->getResult('CustomHydrator');
There are a few ways to go about this. If this is a query that you need to reuse, then Doctrine custom hydrators is perhaps the best approach. If not, you could simply cast the result to an object.
If you need a single result:
$sql =$qb->select('c.login, c.id')
->from('Cusomter','c')
->where('c.login = :login')
->setParameter('login', $login);
$rs = (object) $sql->getQuery()->getSingleResult();
If you need to return an array of objects (i.e. multiple result items), then you could just cast each result:
$sql =$qb->select('c.login, c.id')
->from('Cusomter','c')
->where('c.login = :login')
->setParameter('login', $login);
$rs_new = array_map(function ($value) {
return (object) $value;
}, $sql->getQuery()->getResult());
Better way to use Entity as result http://symfony.com/doc/current/doctrine.html#creating-an-entity-class
As I understand, you need just one result, so use next code inside repository:
$rs = $this->findOneBy(['login' => $login]);
Related
Hove to create custom Repository function who query by json field. I have params column in my database who look like this:
"params": {
"product": "stopper",
"itemIdentifier": ""
}
I want to query record by product value. In this case stopper term.
You can achieve this with a classic example :
In your repository :
For one result
public function findOneProduct($value): ?Params
{
return $this->createQueryBuilder('p')
->andWhere('p.product = :val')
->setParameter('val', $value)
->getQuery()
->getOneOrNullResult()
;
}
For multiple result
public function findParamsByProduct($value): ?Params
{
return $this->createQueryBuilder('p')
->andWhere('p.product = :val')
->setParameter('val', $value)
->orderBy(/*some field */)
->setMaxResults(/*if needed*/)
->getQuery()
->getResults()
;
}
In your controller:
$stoppers = $entityManager->getRepository(Params::class)->findParamsByProduct('stopper');
If I understood your question correctly, you have a table with a column named params. And inside this mysql column, you store JSON text.
And then you want to query that table and filter by looking into the JSON in your column.
This can be a bit tedious and was also highly discouraged in the past (prior to the JSON Type in Mysql 5.7.8).
Best practices would be to have a NoSQL DB such as MongoDB which is actual JSON stored in a collection(table).
Anyways, there is a solution for you.
Taking into account #AppyGG explained how to make a custom repository function.
First of all, we have to make a query using pure SQL.
It can be done two ways:
1.Return arrays containing your data.
$conn = $this->getEntityManager()->getConnection();
$sql = '
SELECT * FROM product p
WHERE p.price > :price
ORDER BY p.price ASC
';
$stmt = $conn->prepare($sql);
$stmt->execute(['price' => $price]);
// returns an array of arrays (i.e. a raw data set)
return $stmt->fetchAll();
2.Return hydrated Entities
use Doctrine\ORM\Query\ResultSetMappingBuilder;
$rsm = new ResultSetMappingBuilder($entityManager);
$rsm->addRootEntityFromClassMetadata('MyProject\Product', 'p');
$sql = '
SELECT * FROM product p
WHERE p.price > :price
ORDER BY p.price ASC
';
$nql = $this->_em->createNativeQuery( $sql, $rsm );
$nql->setParameter('price', $price);
//Return loaded entities
return $nql->getResult();
Now, knowing how to make make a MySQL query with doctrine, we want to select results filtered in JSON data.
I'm am referencing this beautiful stackoverflow which explains it all:
How to search JSON data in MySQL?
The easiest solution proposed in there requires at least MySQL 5.7.8
Your MySQL query would be as follow:
//With $entity->getParams() == '{"params": {"product":"stopper", "itemIdentifier":""}}'
$conn = $this->getEntityManager()->getConnection();
$sql = '
SELECT * FROM Entity e
WHERE JSON_EXTRACT(e.params, "$.params.product") = :product
';
//Or Like this if the column is of Type JSON in MySQL(Not doctrine, yes check MySQL).
$sql = '
SELECT * FROM Entity e
WHERE e.params->"$.params.product" = :product
';
$stmt = $conn->prepare($sql);
$statement->bindValue("product","stopper");
$stmt->execute();
return $statement->fetchAll();
Hope this helps!
P.S: Note that my example uses a column named 'params' with a Json containing also a named attribute 'params', this can be confusing. The intended purpose is to show how to do multiple level filtering.
I'm trying to create Doctrine SQLFilter. I need to filter for "deleted" field. But i want to make filter works with both (true and false) values too.
Something like this:
<?php
namespace Rem\CostsBundle\Doctrine;
use Doctrine\ORM\Mapping\ClassMetadata;
use Doctrine\ORM\Query\Filter\SQLFilter;
class ItemDeletedFilter extends SQLFilter
{
public function addFilterConstraint(ClassMetadata $targetEntity, $targetTableAlias)
{
if ($targetEntity->getReflectionClass()->name != 'Rem\CostsBundle\Entity\Item') {
return '';
}
$fdata = $this->getParameter('deleted');
$filter = '1<>1';
foreach ($fdata as $param) {
$filter .= sprintf('OR %s.deleted = %s', $targetTableAlias, $param);
}
return $filter;
}
}
But when I'm trying to set array of posible filter values in controller
$filters
->enable('costs_item_deleted')
->setParameter('deleted', [true, false]);
I get an error 500
Warning: PDO::quote() expects parameter 1 to be string, array given
This is clear situation. But, after all HOW to send array of params to my SQL filter?
UPD after Dmitry answer: This is not actualy what I wanted. Let say: what if I wanted to filter by few values of field? For records of 2015 and 2016 years for example... So i need to set some sort of array-of-years in ->setParameter. But it want only strings! And sends an error when i'm trying to set something else.
How do you solve this?
Or even more complicated example. What if I need to filter by relational field. In this case I need to set entity as param of filter. Or even ArrayCollection of entities!
For now I'm decide it like this: I json_encode array before set it to setParameter in controller. And then I json_decode it in Filter class. BUT! There in Filter class I need to make one more step. I need to remove single and doublequotes from json string. Because they was added by setParameter to escape string (thats why we love it )) ).
Code hacks like this we call "crutches" here in Russia. So I'd like to avoid of them and write more elegant code )
Make it IN instead of comparing.
foreach ($fdata as $param) {
$filter .= sprintf('OR %s.deleted IN (%s)', $targetTableAlias, param);
}
I have a entity with the next join:
class blogComment
{
....
/**
* #ORM\OneToMany(targetEntity="BlogComment", mappedBy="replyTo")
*/
protected $replies;
....
}
Now I get successfully all the replies. But I only want to get: where active = true
How to do that?
Oke if you guys recommend to get the comments by query in the controller how to build a nested array to get result like this:
For solving the part where you only want active replies there are a couple of options:
1) Use some custom DQL in a repository:
$dql = 'SELECT bc FROM BlogComment bc WHERE bc.replyTo = :id AND bc.active = :active';
$q = $em->createQuery($dql)
->setParameters(array('id' => $id, 'active' => true));
2) Using ArrayCollection::filter() in the getter:
public function getReplies()
{
return $this->replies
->filter(function ($reply) {
return $reply->isActive();
})
->toArray();
}
3) Using ArrayCollection::matching() (Collection Criteria API) in the getter:
use Doctrine\Common\Collections\Criteria;
// ...
public function getReplies()
{
$criteria = new Criteria::create()
->where(Criteria::expr()->eq('active', true));
return $this->replies
->matching($criteria)
->toArray();
}
4) Use Filters. These can add where clauses to queries regardless of where that query is generated. Please see the docs.
If you want to be able to fetch an entire set of replies, nested and all, in a single query, you need to implement some kind of "tree" of "nested set" functionality. I'd advise you to look at the Tree behavior of l3pp4rd/DoctrineExtensions.
http://doctrine-orm.readthedocs.org/en/latest/reference/dql-doctrine-query-language.html
Wherever you are obtaining your blog comments to display them (probably on a controller), you need to customise your query so that only the active replies are extracted. Something like:
$query = $em->createQuery('SELECT b FROM blogComment b JOIN b.replies r WHERE r.active = :active');
$query->setParameter('active', true);
$blogComments = $query->getResult();
EDIT:
For your new requirement of nested replies, you would need to specify a relationship between a comment entity and its parent comment.
I'm using Doctrine's QueryBuilder to build a query, and I want to get the total count of results from the query.
$repository = $em->getRepository('FooBundle:Foo');
$qb = $repository->createQueryBuilder('n')
->where('n.bar = :bar')
->setParameter('bar', $bar);
$query = $qb->getQuery();
//this doesn't work
$totalrows = $query->getResult()->count();
I just want to run a count on this query to get the total rows, but not return the actual results. (After this count query, I'm going to further modify the query with maxResults for pagination.)
Something like:
$qb = $entityManager->createQueryBuilder();
$qb->select('count(account.id)');
$qb->from('ZaysoCoreBundle:Account','account');
$count = $qb->getQuery()->getSingleScalarResult();
Some folks feel that expressions are somehow better than just using straight DQL. One even went so far as to edit a four year old answer. I rolled his edit back. Go figure.
Here is another way to format the query:
return $repository->createQueryBuilder('u')
->select('count(u.id)')
->getQuery()
->getSingleScalarResult();
It's better to move all logic of working with database to repositores.
So in controller you write
/* you can also inject "FooRepository $repository" using autowire */
$repository = $this->getDoctrine()->getRepository(Foo::class);
$count = $repository->count();
And in Repository/FooRepository.php
public function count()
{
$qb = $repository->createQueryBuilder('t');
return $qb
->select('count(t.id)')
->getQuery()
->getSingleScalarResult();
}
It's better to move $qb = ... to separate row in case you want to make complex expressions like
public function count()
{
$qb = $repository->createQueryBuilder('t');
return $qb
->select('count(t.id)')
->where($qb->expr()->isNotNull('t.fieldName'))
->andWhere($qb->expr()->orX(
$qb->expr()->in('t.fieldName2', 0),
$qb->expr()->isNull('t.fieldName2')
))
->getQuery()
->getSingleScalarResult();
}
Also think about caching your query result - http://symfony.com/doc/current/reference/configuration/doctrine.html#caching-drivers
public function count()
{
$qb = $repository->createQueryBuilder('t');
return $qb
->select('count(t.id)')
->getQuery()
->useQueryCache(true)
->useResultCache(true, 3600)
->getSingleScalarResult();
}
In some simple cases using EXTRA_LAZY entity relations is good
http://doctrine-orm.readthedocs.org/projects/doctrine-orm/en/latest/tutorials/extra-lazy-associations.html
If you need to count a more complex query, with groupBy, having etc... You can borrow from Doctrine\ORM\Tools\Pagination\Paginator:
$paginator = new \Doctrine\ORM\Tools\Pagination\Paginator($query);
$totalRows = count($paginator);
Since Doctrine 2.6 it is possible to use count() method directly from EntityRepository. For details see the link.
https://github.com/doctrine/doctrine2/blob/77e3e5c96c1beec7b28443c5b59145eeadbc0baf/lib/Doctrine/ORM/EntityRepository.php#L161
Example working with grouping, union and stuff.
Problem:
$qb = $em->createQueryBuilder()
->select('m.id', 'rm.id')
->from('Model', 'm')
->join('m.relatedModels', 'rm')
->groupBy('m.id');
For this to work possible solution is to use custom hydrator and this weird thing
called 'CUSTOM OUTPUT WALKER HINT':
class CountHydrator extends AbstractHydrator
{
const NAME = 'count_hydrator';
const FIELD = 'count';
/**
* {#inheritDoc}
*/
protected function hydrateAllData()
{
return (int)$this->_stmt->fetchColumn(0);
}
}
class CountSqlWalker extends SqlWalker
{
/**
* {#inheritDoc}
*/
public function walkSelectStatement(AST\SelectStatement $AST)
{
return sprintf("SELECT COUNT(*) AS %s FROM (%s) AS t", CountHydrator::FIELD, parent::walkSelectStatement($AST));
}
}
$doctrineConfig->addCustomHydrationMode(CountHydrator::NAME, CountHydrator::class);
// $qb from example above
$countQuery = clone $qb->getQuery();
// Doctrine bug ? Doesn't make a deep copy... (as of "doctrine/orm": "2.4.6")
$countQuery->setParameters($this->getQuery()->getParameters());
// set custom 'hint' stuff
$countQuery->setHint(Query::HINT_CUSTOM_OUTPUT_WALKER, CountSqlWalker::class);
$count = $countQuery->getResult(CountHydrator::NAME);
For people who are using only Doctrine DBAL and not the Doctrine ORM, they will not be able to access the getQuery() method because it doesn't exists. They need to do something like the following.
$qb = new QueryBuilder($conn);
$count = $qb->select("count(id)")->from($tableName)->execute()->fetchColumn(0);
To count items after some number of items (offset), $qb->setFirstResults() cannot be applied in this case, as it works not as a condition of query, but as an offset of query result for a range of items selected (i. e. setFirstResult cannot be used togather with COUNT at all). So to count items, which are left I simply did the following:
//in repository class:
$count = $qb->select('count(p.id)')
->from('Products', 'p')
->getQuery()
->getSingleScalarResult();
return $count;
//in controller class:
$count = $this->em->getRepository('RepositoryBundle')->...
return $count-$offset;
Anybody knows more clean way to do it?
Adding the following method to your repository should allow you to call $repo->getCourseCount() from your Controller.
/**
* #return array
*/
public function getCourseCount()
{
$qb = $this->getEntityManager()->createQueryBuilder();
$qb
->select('count(course.id)')
->from('CRMPicco\Component\Course\Model\Course', 'course')
;
$query = $qb->getQuery();
return $query->getSingleScalarResult();
}
You can also get the number of data by using the count function.
$query = $this->dm->createQueryBuilder('AppBundle:Items')
->field('isDeleted')->equals(false)
->getQuery()->count();
In my repository class i use:
public function getItemsByTag($tag)
{
$qb = $this->createQueryBuilder('c')
->select('c')
->where('c.tags LIKE %bipolar%')
->addOrderBy('c.id');
return $qb->getQuery()
->getResult();
}
But unfortunately this doesn't work.. Anybody knows how this can work? Or do I have to build a custom query without the QueryBuilder?
Thanks!
Searching based on a single parameter:
I think it should go:
public function getItemsByTag($tag)
{
$qb = $this->createQueryBuilder('c')
->select('c')
->where('c.tags LIKE :tag')
->addOrderBy('c.id')
->setParameter('tag', $tag);
return $qb->getQuery()->getResult();
}
But I think that it is discouraged to do a LIKE as part of a where using the query builder so you should do:
$qb = $this->createQueryBuilder('c');
$qb->select('c')
->where($qb->expr()->like('c.tags', '?1'))
->addOrderBy('c.id')
->setParameter(1, $tag);
return $qb->getQuery()->getResult();
Check out the docs for more information, there is an example of a like expression in the section entitled Helper Methods
I should also point out that I used a different convention in each example for passing a parameter into a query, the first used a named parameter :tag which is set by setParameter('tag', $value) the second is just a numbered parameter ?1, you could have just as easily have used a named parameter in the second example if you wished to as well.
Searching with an array of parameters:
You also asked about doing an array of likes. Here it is with an OR expression but if you wanted to search for all tags you could change it to an AND.
In order to make a "LIKE array" you just have to build up the expression on its own.
$qb = $this->createQueryBuilder('c');
$orExpr = $qb->expr()->orX();
for ($i = 0; $i < count($tags); $i++) {
$orExpr->add($qb->expr->like('c.tags', "?$i"));
// You may have to set params later in a loop after $orExpr has been
// added to the queryBuilder.
$qb->setParameter($i, $tags[$i]);
}
$qb->select('c')->where($orExpr)->addOrderBy('c.id');
return $qb->getQuery()->getResult();
If you don't want to substitute your query with variables but use a static string you have to put the string in apostrophes.
You have to use apostrophes instead of quotes! Otherwise the Doctrine2 Lexer will throw an Exception.
So in your case Mike you can use:
'c.tags LIKE \'%bipolar%\''
or
"c.tags like '%bipolar%'"
I don't know much about Symfony, but based on what I know about PHP and MySQL, I imagine you mean 'c.tags LIKE "%bipolar%"'. You likely need quotation marks around %bipolar%.
simply:
public function getItemsByTag($tag)
{
$qb = $this->createQueryBuilder('c')
->select('c')
->where( $qb->expr()->like('c.tags', ':tags') )
->addOrderBy('c.id');
$qb->setParameter('tags', '%' . $tag . '%' );
return $qb->getQuery()->getResult();
}