Object vs array result - symfony

Question

In my search filter (FormBuilder) to return a list of filtering results, I have a form with a relation to an object (multiple checkbox). It doesn't work.
I think I have a problem in my repository to get an array vs object result.
<?php
namespace AdminBundle\Controller;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Bridge\Doctrine\Form\Type\EntityType;
use Symfony\Component\Form\Extension\Core\Type\EmailType;
use Symfony\Component\Form\Extension\Core\Type\SubmitType;
use Symfony\Component\Form\Extension\Core\Type\TextareaType;
use Symfony\Component\Form\Extension\Core\Type\TextType;
use Symfony\Component\Validator\Constraints as Assert;
use AdminBundle\Entity\Products;
use AdminBundle\Form\ProductsType;
class ProductsController extends Controller
{
/**
* #Route("/", name="homepage")
*/
public function indexAction(Request $request)
{
$form = $this->createFormBuilder()
->add('category', 'entity', array(
'class' => 'AdminBundle:Category',
'label' => false,
'choice_label' => 'name',
'required' => false,
'expanded' => true,
'placeholder' => 'Tous',
'multiple' => true
))
// ...
;
This is my repository:
<?php
namespace AdminBundle\Repository;
class ProductsRepository extends \Doctrine\ORM\EntityRepository
{
public function ListAll($data)
{
$query = $this->createQueryBuilder('a')->orderBy('a.updated','DESC');
// CATEGORY
if($data['category'] !== null)
{
$query
->innerJoin('a.category', 'cat')
->andWhere('cat.id = :catid')
->setParameter('catid', $data['category'])
;
/*
$query
->leftJoin('a.category', 'category')
->setParameter('category', $data['category'])
;
*/
}
// ...
}
}
This repository works for just a single select: multiple => false. When I set multiple => true, I get an SQL violation about object vs. array.
How can I deal with the repository for multiple checkboxes?

Answer 1

You must use ChoiceType instead of entityType
class CategoryRepository extends \Doctrine\ORM\EntityRepository
{
public function getForSearch()
{
$qb = $this->createQueryBuilder('category');
$qb->orderBy('category.name');
$query = $qb->getQuery();
$results = $query->getResult();
$categories = array();
foreach ($results as $category) {
$categories[$category->getName()] = $category->getId();
}
return $categories;
}
In form
$categories = $em->getRepository(Category::class)->getForSearch();
->add('categories', ChoiceType::class, array(
'choices' => $categories,
'required' => false,
'placeholder' => 'Select',
))
And in controller :
if ($search_form->isSubmitted() && $search_form->isValid()) {
$data = $search_form->getData();
$em->getRepository(Product::class)->ListAll($data);
I also think we can use a data transformer but I do not how to do that