Question

Actually I have a Project entity with a one-to-many relation on ProjectsWorkgroups entity which have a many-to-one relation on Workgroup entity. I would like to display many radio buttons and to be able to assign a Workgroup to the project.

I try that, without success

public function buildForm(FormBuilder $builder, array $options)
{
    $builder->add('name');
    $builder->add('color');
    $builder->add('workgroups', 'entity', array(
        'class' => 'MyBundle:Workgroup',
        'property' => 'name',
        'multiple' => true
    ));
}

What’s wrong?

Thanks in advance.

Answer 1

if you want a radio buttons you must change property multiple to false and expanded to true
like this:

$builder->add('workgroups', 'entity', array(
    'class' => 'MyBundle:Workgroup',
    'property' => 'name',
    'multiple' => false,
    'expanded' => true
 ));

for more details:
Select tag, Checkboxes or Radio Buttons