如何将ng-model添加到Symfony表单类型复选框

use Symfony\Component\Form\Extension\Core\Type\CheckboxType;
use Symfony\Component\Form\FormBuilderInterface;

class YourFormType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder
            ->add('yourCheckboxField', CheckboxType::class, [
                'label' => 'Your Checkbox',
                'required' => false,
                'attr' => [
                    'ng-model' => 'yourModel',
                ],
            ]);
    }
}

{{ form_start(form) }}
{{ form_widget(form.yourCheckboxField) }}
{{ form_end(form) }}

app.controller('YourController', function($scope) {
    $scope.yourModel = false;
});