how to return json encoded form errors in symfony

Question

I want to create a webservice to which I submit a form, and in case of errors, returns a JSON encoded list that tells me which field is wrong.

currently I only get a

Answer 1

This will do the trick. This static method runs recursively through the Symfony\Component\Form\FormErrorIterator delivered by calling $form->getErrors(true, false).

getErrors(true, false) as $formError) {
            if ($formError instanceof FormError) {
                $result[$formError->getOrigin()->getName()] = $formError->getMessage();
            } elseif ($formError instanceof FormErrorIterator) {
                $result[$formError->getForm()->getName()] = self::generateErrorsArrayFromForm($formError->getForm());
            }
        }
        return $result;
    }
}

Here is the result :

{
    "houseworkSection": "All the data of the housework section must be set since the section has been requested.",
    "foodSection": {
        "requested": {
            "requested": "This value is not valid."
        }
    }
}