Symfony 3 - Forms - Persist Entity - Choices are NULL

Question

I'm new to Symfony and cannot easily find Symfony 3 answers to my question.

Problem : I have a basic form setup which populates select boxes with basic id+name Entity values (Country, Company, Partner, etc.)

All the select boxes are correctly populated from the DB. However when I try saving the populated form, all the "choices" are returned as null.

Question : What am i missing to make sure the selected values in the selectboxes are sent through to the INSERT statement ?

Note : I have looked at the Form documentation but that didn't seem to cover this scenario.

Form :

Result on Submit :

Controller excerpt :

/**
 * @Route("/opportunity/add", name="add_opportunity")
 */
public function addAction(Request $request)
{
    $em = $this->getDoctrine()->getManager();

    $opportunity = new Opportunity();
    $form = $this->createForm(OpportunityType::class, $opportunity);

    $form->handleRequest($request);
    if ($form->isSubmitted() && $form->isValid()) {

        $em->persist($opportunity);
        $em->flush();

        return $this->redirectToRoute('/opportunity/add');
    }

    return $this->render(
        'opportunity/add-opportunity.html.twig',
        array('form' => $form->createView())
    );
}

Build Form from OpportunityType :

public function buildForm(FormBuilderInterface $builder, array $options)
{
    $builder
        ->add('name', TextType::class)

        ->add('countries', EntityType::class, array(
            'class' => 'AppBundle:Country',
            'choice_label' => 'name'
        ))

        ->add('partners', EntityType::class, array(
            'class' => 'AppBundle:Partner',
            'choice_label' => 'name'
        ))

        ->add('companies', EntityType::class, array(
            'class' => 'AppBundle:Company',
            'choice_label' => 'name'
        ))

        ->add('users', EntityType::class, array(
            'class' => 'AppBundle:User',
            'choice_label' => 'name'
        ))

        ->add('stages', EntityType::class, array(
            'class' => 'AppBundle:Stage',
            'choice_label' => 'name'
        ))

        ->add('stage_changed_date', DateType::class)
        ->add('target_close_date', DateType::class)
        ->add('contract_value', TextType::class)

    ;
}

Form twig :

{% block body %}
<div style="max-width: 600px; margin-top:100px; padding:15px; margin-left:auto; margin-right:auto;" class="card">
{{ form_start(form) }}
    <div class="form-header purple darken-4">
        <h3><i class="fa"></i>Add Opportunity</h3>
    </div>
    {{ form_row(form.name) }}
    {{ form_row(form.countries) }}
    {{ form_row(form.partners) }}
    {{ form_row(form.companies) }}
    {{ form_row(form.users) }}
    {{ form_row(form.stages) }}
    {{ form_row(form.stage_changed_date) }}
    {{ form_row(form.target_close_date) }}
    {{ form_row(form.contract_value) }}

    <button class="btn btn-raised btn-primary" type="submit">ADD</button>
{{ form_end(form) }}
</div>

{% endblock %}

Answer 1

Resolved, and probably not the best solution, but something which may be helpful to others.

I ended up just assigning the values as needed on the Opportunity object after Form submission before db persistence :

$form->handleRequest($request);
if ($form->isSubmitted() && $form->isValid()) {

    // Get selected values for dropdowns
    $opportunity->setPartnerId($opportunity->getPartners()->getId());
    $opportunity->setCountryId($opportunity->getCountries()->getId());
    $opportunity->setCompanyId($opportunity->getCompanies()->getId());
    $opportunity->setUserId($opportunity->getUsers()->getId());
    $opportunity->setStageId($opportunity->getStages()->getId());

    $em->persist($opportunity);
    $em->flush();

    return $this->redirectToRoute('add_opportunity');
}