ajaxResponseMixin

with google captcha

class AjaxResponseMixin(object):
    message_success = ''
    message_error = ''
    message_recaptcha = 'Не забывайте про капчу'

    def form_invalid(self, form):
        response = super(AjaxResponseMixin, self).form_invalid(form)
        if self.request.is_ajax():
            data = {
                'errors': form.errors,
                'status': 400,
                'message_error': self.message_error
            }
            errors = json.dumps(data, ensure_ascii=False)
            return JsonResponse(errors, status=400, safe=False)
        else:
            return response

    def form_valid(self, form):
        recaptcha_response = self.request.POST.get('g-recaptcha-response')
        data_request_captcha = {
            'secret': GOOGLE_RECAPTCHA_SECRET_KEY,
            'response': recaptcha_response
        }
        data_response_form = {
            'pk': self.object.pk,
            'message_success': self.message_success,
            'status': 200
        }
        request_captcha = requests.post('https://www.google.com/recaptcha/api/siteverify', data=data_request_captcha,
                                        verify=False)
        response_captcha = request_captcha.json()
        if response_captcha['success']:
            form.save(commit=True)
            data_response_form.update({
                'message_success': self.message_success,
                'status': 200,
            })
        else:
            data_response_form.update({
                'message_success': self.message_recaptcha,
                'status': 202,
            })

        response = super(AjaxResponseMixin, self).form_valid(form)
        if self.request.is_ajax():
            data_response = json.dumps(data_response_form, ensure_ascii=False)
            return JsonResponse(data_response, status=200, safe=False)
        else:
            return response