I'm trying to use doctrine and take the values ordered, but I cannot.
I try so:
$articlesB = $this
->getDoctrine()
->getManager()
->getRepository('theBundle:Article')
->findAll(array('date' => 'ASC'));
Do you know howw to take this values ordered by date? A column is named date and take all the dates. I want to have this orderer.
Thanks
Best regards
Use findBy instead of findAll with an empty array for the first argument (selection criteria) and your sorting array as the second argument.
$articlesB = $this
->getDoctrine()
->getManager()
->getRepository('theBundle:Article')
->findBy(array(),array('date' => 'ASC'));
In this case I looked at the actual source code. You would think that findAll() would work but nope. It never passes the sorting criteria on.
You'll need to create an ArticleRepostory and in it:
public function getOrderedArticles()
{
$return $this->getEntityManager()
->createQuery(
"SELECT a FROM theBundle:Article a "
. "ORDER BY a.date ASC"
);
}
so that your controller could do
$articlesB = $this
->getDoctrine()
->getManager()
->getRepository('theBundle:Article')
->getOrderedArticles();
Related
How can I rewrite this code in order to get last inserted record from the table?
$repository = $entityManager->getRepository('AdminBundle:MyTable');
$product = $repository->find($id);
I tried something like
$repository->findBy(array('id','DESC')->setMaxResults(1);
But it did not work for me.
You could get the latest record by using findBy() with order by, limit and offset parameters
$results = $repository->findBy(array(),array('id'=>'DESC'),1,0);
First argument is for filter criteria
Second argument takes order by criteria
Third argument is for limit
Fourth argument sets offset
Note it will return you the results set as array of objects so you can get single object from result as $results[0]
FindBy() Examples
Instead of hacking code where you want to use it, you can also create a repository method and call it when necessary.
/**
* Repository method for finding the newest inserted
* entry inside the database. Will return the latest
* entry when one is existent, otherwise will return
* null.
*
* #return MyTable|null
*/
public function findLastInserted()
{
return $this
->createQueryBuilder("e")
->orderBy("id", "DESC")
->setMaxResults(1)
->getQuery()
->getOneOrNullResult();
}
References:
https://symfony.com/doc/current/doctrine.html#querying-for-objects-the-repository
After looking for one I decided to try it myself, I think it was much less verbose:
$myRepository->findOneBy([], ['id' => 'DESC']);
Please try the below one
$repository = $entityManager->getRepository('AdminBundle:MyTable');
$repository->setMaxResults(1)->orderBy('id', 'DESC');
$results = $repository->getQuery()->getSingleResult();
Reference:
https://undebugable.wordpress.com/2016/01/27/symfony2-querybuilder-find-first-and-find-last-record-in-table/
You can add these functions to your repository:
public function getLastRow(): ?YourEntity
{
return $this->findOneBy([], ['id' => 'DESC']);
}
public function getLastId(): int
{
$lastRow = $this->getLastRow();
return $lastRow ? $lastRow->getId() : 0;
}
You can be collected by getting the id of the inserted object
$em->persist($entity);
$em->flush();
$entity->getId();
OR
$entitymanager->getRepository("entity")->findBy([],["id"=>desc])->getId();
I want to get one single value from entity.Can anyone help me here.
Here is my code.Please let me know what is missing here.
$query = $em->createQuery("SELECT e FROM AdminBundle:MailTemplates e WHERE e.keyword = '" .$keywordVal."'");
$query->execute();
$result = $query->getResult();
echo $result ->getId();
Here i want the 'id'.
This is noted in the documentation how you can do this.
So given you're code this will become:
$query = $em->createQuery("SELECT e.id FROM AdminBundle:MailTemplates e WHERE e.keyword = ?1");
$query->setParameter(1, $keywordVal);
$query->execute();
$result = $query->getResult(); // array of MailTemplates ids
Note: I also made use of setParameters instead of setting the value directly in the query.
In your controller:
$this->get('database_connection')->fetchColumn('select id from mail_templates where...');
That's much better for performance and much easier if you don't want to have a deal with query builder and other doctrine orm stuff.
Using the query builder you could do...
$queryBuilder = $em->createQueryBuilder('e');
$queryBuilder
->select('e.yourColumn')
// This will return just this column
// Alternatively you could omit any select to return the whole object
// that you could then use like $object->getYourColumn() if you so chose
->where($queryBuilder->expr()->eq('e.keyword', ':keyword'))
->setParameter('keyword', $keyword)
;
return $queryBuilder
->getQuery()
->getResult();
try this on loading Entities instead of creating own queries
Loading the entity with the Repository.
$rep = $this->getDoctrine()->getManager()->getRepository("Bundlename:Entity");
//find one by keyword -> single entity
$entity = $rep->findOneBy(array('keyword' => $keyword));
//find all by keyword - Array of entities
$result = $rep->findBy(array('keyword' => $keyword));
I have in my table "Artiste" one column "valideAdmin" who takes value 1 or 0.
I try to make a simple count to return the number of entries in my table where "valideAdmin" is to 1:
$repo = $this ->getDoctrine()
->getManager()
->getRepository('ProjectMainBundle:Artiste');
$qb = $repo->createQueryBuilder('valideAdmin');
$qb->select('COUNT(valideAdmin)');
$qb->where('valideAdmin=1');
$count = $qb->getQuery()->getSingleScalarResult();
return array(
'count' => $count
);
But it always "1" who's return...
Without where clause, I have the total count of the entries of the table, but valideAdmin can be 0 or 1. I only want the count number where valideAdmin=1
Thanks for help
createQueryBuilder()'s first parameter is the alias that you want your entity to take (ie.: a short name to be used to refer to your entity in the query).
What you need to do is set a proper alias for your entity (for example a for Artiste) and then COUNT() the instances of your entity where the property (not the column) valideAdmin is set to one:
$repo = $this ->getDoctrine()
->getManager()
->getRepository('ProjectMainBundle:Artiste');
$qb = $repo->createQueryBuilder('a');
$qb->select('COUNT(a)');
$qb->where('a.valideAdmin = :valideAdmin');
$qb->setParameter('valideAdmin', 1);
$count = $qb->getQuery()->getSingleScalarResult();
Remember that DQL runs queries on entities. The DQL your write is then translated into SQL to query the underlying data source after.
Also you can fetch all date then use of COUNT function in PHP
This method has an advantage.You do not have to use a complex query.
You have all the information with count columns
$repositoryArtiste = $this->getDoctrine()
->getRepository('ProjectMainBundle:Artiste');
$queryArtiste= $repositoryArtiste->createQueryBuilder('a')
->Where('a.valideAdmin = :valideAdmin')
->setParameter('valideAdmin',1)
->getQuery();
$Artiste = $queryArtiste->getResult();
var_dump(count($Artiste));
I'd need to use a "magic finder" findBy method using comparative criteria (not only exact criteria). In other words, I need to do something like this:
$result = $purchases_repository->findBy(array("prize" => ">200"));
so that I'd get all purchases where the prize is above 200.
The class Doctrine\ORM\EntityRepository implements Doctrine\Common\Collections\Selectable API.
The Selectable interface is very flexible and quite new, but it will allow you to handle comparisons and more complex criteria easily on both repositories and single collections of items, regardless if in ORM or ODM or completely separate problems.
This would be a comparison criteria as you just requested as in Doctrine ORM 2.3.2:
$criteria = new \Doctrine\Common\Collections\Criteria();
$criteria->where(\Doctrine\Common\Collections\Criteria::expr()->gt('prize', 200));
$result = $entityRepository->matching($criteria);
The major advantage in this API is that you are implementing some sort of strategy pattern here, and it works with repositories, collections, lazy collections and everywhere the Selectable API is implemented.
This allows you to get rid of dozens of special methods you wrote for your repositories (like findOneBySomethingWithParticularRule), and instead focus on writing your own criteria classes, each representing one of these particular filters.
This is an example using the Expr() Class - I needed this too some days ago and it took me some time to find out what is the exact syntax and way of usage:
/**
* fetches Products that are more expansive than the given price
*
* #param int $price
* #return array
*/
public function findProductsExpensiveThan($price)
{
$em = $this->getEntityManager();
$qb = $em->createQueryBuilder();
$q = $qb->select(array('p'))
->from('YourProductBundle:Product', 'p')
->where(
$qb->expr()->gt('p.price', $price)
)
->orderBy('p.price', 'DESC')
->getQuery();
return $q->getResult();
}
You have to use either DQL or the QueryBuilder. E.g. in your Purchase-EntityRepository you could do something like this:
$q = $this->createQueryBuilder('p')
->where('p.prize > :purchasePrize')
->setParameter('purchasePrize', 200)
->getQuery();
$q->getResult();
For even more complex scenarios take a look at the Expr() class.
$criteria = new \Doctrine\Common\Collections\Criteria();
$criteria->where($criteria->expr()->gt('id', 'id'))
->setMaxResults(1)
->orderBy(array("id" => $criteria::DESC));
$results = $articlesRepo->matching($criteria);
The Symfony documentation now explicitly shows how to do this:
$em = $this->getDoctrine()->getManager();
$query = $em->createQuery(
'SELECT p
FROM AppBundle:Product p
WHERE p.price > :price
ORDER BY p.price ASC'
)->setParameter('price', '19.99');
$products = $query->getResult();
From http://symfony.com/doc/2.8/book/doctrine.html#querying-for-objects-with-dql
I like to use such static methods:
$result = $purchases_repository->matching(
Criteria::create()->where(
Criteria::expr()->gt('prize', 200)
)
);
Of course, you can push logic when it is 1 condition, but when you have more conditions it is better to divide it into fragments, configure and pass it to the method:
$expr = Criteria::expr();
$criteria = Criteria::create();
$criteria->where($expr->gt('prize', 200));
$criteria->orderBy(['prize' => Criteria::DESC]);
$result = $purchases_repository->matching($criteria);
Copying the findBy query and modifying it to return your expected result is a good approach.
I am able to fetch my data from database by using this structure:
$user = $this->getDoctrine()
->getRepository('AcmeDemoBundle:Emails')
->find(8081);
When I do that, I am able to get my data like this:
$user->getColumnNameHere();
Basically I am able to use Entity Class.
But if I want to use QueryBuilder instead of find I am only getting associative arrays.
$product->createQueryBuilder('p')
->setMaxResults(1)
->where('p.idx = :idx')
->select('p.columnNameHere')
->setParameter('idx', 8081)
->orderBy('p.idx', 'DESC')
->getQuery();
$product = $query->getResult();
$product returnds as array. Is it possible to fetch it withj Entity Managaer Class? If yes, how?
I digg the documentation but it seems not possible or not exist in the doc or I'm just blind :)
Yes you can, usually using:
$repository
->createQueryBuilder('p')
->getQuery()
->execute()
;
This should return you an array of entities.
If you want to get a single entity result, use either getSingleResult or getOneOrNullResult:
$repository
->createQueryBuilder('p')
->getQuery()
->getOneOrNullResult()
;
Warning: These method can potentially throw NonUniqueResultException.
Edit: Ok, so the question was about partial objects: http://docs.doctrine-project.org/en/latest/reference/partial-objects.html
you can get an object instead of array by using "Partial Objects".
here is a tested example with DoctrineORM 2.2.2:
// create query builder
// $em is the EntityManager
$qb = $em->createQueryBuilder();
// specify the fields to fetch (unselected fields will have a null value)
$qb->select ('partial p.{id,pubDate,title,summary}')
->from ('Project\Entity\Post', 'p')
->where ('p.isActive = 1')
->orderBy ('p.pubDate', 'desc');
$q = $qb->getQuery();
$result = $q->getResult();
var_dump($result); // => object
If you wish to return an object from your original query:
$product->createQueryBuilder('p')
->setMaxResults(1)
->where('p.idx = :idx')
->select('p.columnNameHere')
->setParameter('idx', 8081)
->orderBy('p.idx', 'DESC')
->getQuery();
$product = $query->getResult();
Remove this line
->select('p.columnNameHere')
As soon as you use select, it will return an array...
getResult() method returns a collection (an array) of entities. Use getSingleResult() if you're going to fetch only one object.
EDIT:
Oh, I just noticed that you want to fetch a single field of a single object. Use getSingleScalarResult() as #Florian suggests.