Newscoop\GimmeBundle\Form\Type\SnippetTemplateType::buildForm PHP Method

    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $defaultRequired = true;
        $constraints = array(new NotBlank());
        if ($this->patch) {
            $defaultRequired = false;
            $constraints = array();
        }
        $builder->add('fields', 'collection', array('type' => new SnippetTemplateFieldType(array('patch' => $this->patch)), 'required' => $defaultRequired, 'constraints' => $constraints, 'allow_add' => true));
        $builder->add('name', 'text', array('required' => $defaultRequired, 'constraints' => $constraints));
        $builder->add('templateCode', 'textarea', array('required' => $defaultRequired, 'constraints' => $constraints));
        $builder->add('controller', 'text', array('required' => false));
        $builder->add('enabled', 'checkbox', array('required' => false));
        $builder->add('favourite', 'checkbox', array('required' => false));
        $builder->add('iconInactive', 'textarea', array('required' => false));
        $builder->add('iconActive', 'textarea', array('required' => false));
        $callback = function (FormEvent $event) {
            if (null === $event->getData()) {
                // check if the Form's field is empty
                if (is_bool($event->getForm()->getData())) {
                    // check if it's a boolean
                    if ($event->getForm()->getData()) {
                        $event->setData('1');
                    } else {
                        $event->setData('0');
                    }
                } else {
                    // set the data back
                    $event->setData($event->getForm()->getData());
                }
            }
        };
        $builder->get('name')->addEventListener(FormEvents::PRE_SUBMIT, $callback);
        $builder->get('templateCode')->addEventListener(FormEvents::PRE_SUBMIT, $callback);
        $builder->get('controller')->addEventListener(FormEvents::PRE_SUBMIT, $callback);
        $builder->get('enabled')->addEventListener(FormEvents::PRE_SUBMIT, $callback);
        $builder->get('favourite')->addEventListener(FormEvents::PRE_SUBMIT, $callback);
        $builder->get('iconInactive')->addEventListener(FormEvents::PRE_SUBMIT, $callback);
        $builder->get('iconActive')->addEventListener(FormEvents::PRE_SUBMIT, $callback);
    }