Disable backend validation for choice field in Symfony 2 Type

Question

Is it possible to disable backend (server-side) validation for the specified field?

Wnen Im trying to send form with dynamicly loaded options I get error \"ERROR: T

Answer 1

Add this inside buildForm method in your form type class so that you can validate an input field value rather a choice from a select field value;

$builder->addEventListener(
    FormEvents::PRE_SUBMIT,

    function (FormEvent $event) {
        $form = $event->getForm();

        if ($form->has('field')) {
            $form->remove('field');
            $form->add(
                'field', 
                'text', 
                ['required' => false]
            )
        }
    }
);