Entities passed to the choice field must be managed

symfony

Solution

I have find out the reason, cause i make a instance of companyType in company for the form. Which means:

$cType=new CompanyType();
$company=new Company();
$company->getCompanyTypes()->add($cType);
$cForm=$this->createFrom(new CompanyForm(),$company);

This is the reason why it throw this exception. I should not initialize any companyType for the form. cause i need to choose it. Thanks for who try to help. Hope this can help somebody.

Problem

i search the answers from internet but i can not find a reason: i have a table company, a table companyType, so : ``` /** * Acme\UserBundle\Entity\Company * * @ORM\Table(name="company") * @ORM\Entity */ class Company { /** * @var integer $id * * @ORM\Column(name="id", type="integer", nullable=false) * @ORM\Id * @ORM\GeneratedValue(strategy="IDENTITY") */ private $id; /** * @var CompanyType * * @ORM\ManyToOne(targetEntity="CompanyType") * @ORM\JoinColumns({ * @ORM\JoinColumn(name="company_type_id", referencedColumnName="id") * }) */ private $companyType; ... ``` } ``` /** * Acme\UserBundle\Entity\CompanyType * * @ORM\Table(name="company_type") * @ORM\Entity */ class CompanyType { /** * @var integer $id * * @ORM\Column(name="id", type="integer", nullable=false) * @ORM\Id * @ORM\GeneratedValue(strategy="IDENTITY") */ private $id; /** * @var string $name * * @ORM\Column(name="name", type="string", length=45, nullable=true) */ private $name; .... public function __toString(){ return $this->name; } ``` } and then , in the formtype class: ``` class CompanyForm extends AbstractType { public function buildForm(FormBuilder $builder, array $options) { $builder ->add('name') ->add('siren') ->add('siret') ->add('tvaCommun') ->add('apeCode') ; $builder->add('activity','collection', array('type'=> new ActivityForm())); $builder->add('companyType','entity',array( 'class' => 'AcmeUserBundle:CompanyType', )); } ... } ``` when i trying to use the form: ``` {{ form_row(company.companyType) }} ``` in the view, i got the error message.

Original source