Wizard to create django forms and recaptcha

Question

I did recaptcha integration using the following django snippet

settings.py RECAPTCHA_PUBLIC_KEY = '<your public key>' RECAPTCHA_PRIVATE_KEY = '<your private key>' #widgets.py from django import forms from django.utils.safestring import mark_safe from django.conf import settings from recaptcha import captcha class ReCaptcha(forms.widgets.Widget): recaptcha_challenge_name = 'recaptcha_challenge_field' recaptcha_response_name = 'recaptcha_response_field' def render(self, name, value, attrs=None): return mark_safe(u'%s' % captcha.displayhtml(settings.RECAPTCHA_PUBLIC_KEY)) def value_from_datadict(self, data, files, name): return [data.get(self.recaptcha_challenge_name, None), data.get(self.recaptcha_response_name, None)] #fields.py from django.conf import settings from django import forms from django.utils.encoding import smart_unicode from django.utils.translation import ugettext_lazy as _ from marcofucci_utils.widgets import ReCaptcha from recaptcha import captcha class ReCaptchaField(forms.CharField): default_error_messages = { 'captcha_invalid': _(u'Invalid captcha') } def __init__(self, *args, **kwargs): self.widget = ReCaptcha self.required = True super(ReCaptchaField, self).__init__(*args, **kwargs) def clean(self, values): super(ReCaptchaField, self).clean(values[1]) recaptcha_challenge_value = smart_unicode(values[0]) recaptcha_response_value = smart_unicode(values[1]) check_captcha = captcha.submit(recaptcha_challenge_value, recaptcha_response_value, settings.RECAPTCHA_PRIVATE_KEY, {}) if not check_captcha.is_valid: raise forms.util.ValidationError(self.error_messages['captcha_invalid']) return values[0] #forms.py class RegistrationForm(forms.Form): ... recaptcha = marcofucci_fields.ReCaptchaField() ... 

But I have the forms defined in the django form wizard, and it calls the clean method in the field twice, even if captcha is included in the last form.

As in the following:

  from registration.forms import RegistrationWizard,RegistrationForm,ProfileForm url(r'^register/$', RegistrationWizard([RegistrationForm,ProfileForm]), name='register_wizard'), 

How to get around this situation. What is the need to call clean twice in the last form?

Answer 1

If the form is attached, it will always be cleared when rendering (even if you do not call form.is_valid).

Answer 2

You might want to use this instead: django snippet 1644