Symfony2. How to allow form to ignore extra fields? [duplicate]

Answer 1

In your Form Type:

    /**
     * @param OptionsResolver $resolver
     */
    public function configureOptions(OptionsResolver $resolver)
    {
        $resolver->setDefaults(array(
            'data_class' => 'AppBundle\Entity\YourEntity',
            'translation_domain' => strtolower('entity_translation_domain'),
            'allow_extra_fields' => true,
        ));
    }

The allow_extra_fields will enable your form to receive the extra data