How to set a class attribute to a Symfony2 form input

Question

How can I set the HTML class attribute to a form using the FormBuilder in Symfony2 ?

S

Answer 1

You can add it in the options of your form class:

public function configureOptions(OptionsResolver $resolver)
{
    $resolver->setDefaults(array(
        'data_class' => 'AppBundle\Entity\MyEntity',
        'attr' => array(
            'class' => 'form-horizontal'
        )
    ));
}