Hi, Use items() instead of iteritems().
Collin On Thursday, January 22, 2015 at 11:31:23 AM UTC-5, Frankline wrote: > > Hi all, > I am having a problem saving a Django form using the *FormWizard > <https://docs.djangoproject.com/en/1.7/ref/contrib/formtools/form-wizard/>* > while using *Django 1.7* and *Python 3.4*. Below is my code: > > *models.py* > > ...class Advert(models.Model): > ... # Some irelevant code removed for brevity > owner = models.ForeignKey(settings.AUTH_USER_MODEL, db_index=True, > blank=False, null=False) > title = models.CharField(_("Title"), max_length=120) > description = models.TextField(_("Description"), default='') > category = models.ForeignKey(AdCategory, db_index=True, > related_name='ad_category', verbose_name=_('Category')) > status = models.IntegerField(choices=ADVERT_STATES, default=0) > adtype = models.IntegerField(choices=ADTYPES, default=1) > price = models.DecimalField(_('Price'), max_digits=12, decimal_places=2, > blank=True, default=0, > help_text=_('Price'), > validators=[MinValueValidator(0)]) > ...class AdvertImage(models.Model): > > def generate_new_filename(instance, filename): > IMAGE_UPLOAD_DIR = "advert_images" > old_fname, extension = os.path.splitext(filename) > return '%s/%s%s' % (IMAGE_UPLOAD_DIR, uuid.uuid4().hex, extension) > > advert = models.ForeignKey(Advert, related_name='images') > image = models.ImageField(upload_to=generate_new_filename, null=True, > blank=True) > > > *forms.py* > > from django.forms.models import inlineformset_factoryfrom django import > formsfrom django.forms import ModelForm, RadioSelect, TextInput > from .models import Advert, AdvertImage > > class AdvertCategoryForm(ModelForm): > > class Meta: > model = Advert > fields = ('category',) > > class AdvertDetailsForm(ModelForm): > > class Meta: > model = Advert > fields = ('title', 'description', 'location', 'adtype', 'price') > > class AdvertImageForm(ModelForm): > > class Meta: > model = AdvertImage > fields = ('image',) > > AdvertImageFormset = inlineformset_factory(Advert, AdvertImage, > fields=('image',), can_delete=False, extra=3, max_num=3) > > > FORMS = [("ad_category", AdvertCategoryForm), > ("ad_details", AdvertDetailsForm), > ("ad_images", AdvertImageFormset)] > > TEMPLATES = {"ad_category": "adverts/advert_category_step.html", > "ad_details": "adverts/advert_details_step.html", > "ad_images": "adverts/advert_images_step.html"} > > > *views.py* > > ...class AdvertWizard(LoginRequiredMixin, SessionWizardView): > > form_list = FORMS > file_storage = > FileSystemStorage(location=os.path.join(settings.MEDIA_ROOT)) > > def get_template_names(self): > return [TEMPLATES[self.steps.current]] > > ... > > def done(self, form_list, **kwargs): > advert = Advert() > """for form in form_list: for field, value in > form.cleaned_data.iteritems(): setattr(advert, field, value)""" > > form_dict = {} > for form in form_list: > form_dict.update(form.cleaned_data) > > advert.owner = self.request.user > advert.save() > redirect(advert) > > > The problem occurs in the done method while saving the form: > > ValueError at /ads/new > > dictionary update sequence element #0 has length 3; 2 is required > > Request Method:POSTRequest URL:http://localhost:8000/ads/newDjango > Version:1.7.1Exception Type:ValueErrorException Value: > > dictionary update sequence element #0 has length 3; 2 is required > > Exception > Location:/home/frank/Projects/python/django/pet_store/src/petstore/apps/adverts/views.py > > in done, line 147Python Executable: > /home/frank/.virtualenvs/petstore/bin/pythonPython Version:3.4.0 > > - > > /home/frank/Projects/python/django/pet_store/src/petstore/apps/adverts/views.py > in done > 1. > > form_dict.update(form.cleaned_data) > > ... > ▶ Local vars <http://localhost:8000/ads/new#> > > However, when I replace the following code: > > form_dict = {} > for form in form_list: > form_dict.update(form.cleaned_data) > > with this one > > for form in form_list: > for field, value in form.cleaned_data.iteritems(): > setattr(advert, field, value) > > I now get the following error: > > AttributeError at /ads/new > > 'dict' object has no attribute 'iteritems' > > Request Method:POSTRequest URL:http://localhost:8000/ads/newDjango > Version:1.7.1Exception Type:AttributeErrorException Value: > > 'dict' object has no attribute 'iteritems' > > Exception > Location:/home/frank/Projects/python/django/pet_store/src/petstore/apps/adverts/views.py > > in done, line 140Python Executable: > /home/frank/.virtualenvs/petstore/bin/pythonPython Version:3.4.0Python > Path: > > ['/home/frank/Projects/python/django/pet_store/src/petstore', > '/home/frank/.virtualenvs/petstore/lib/python3.4', > '/home/frank/.virtualenvs/petstore/lib/python3.4/plat-x86_64-linux-gnu', > '/home/frank/.virtualenvs/petstore/lib/python3.4/lib-dynload', > '/usr/lib/python3.4', > '/usr/lib/python3.4/plat-x86_64-linux-gnu', > '/home/frank/.virtualenvs/petstore/lib/python3.4/site-packages' > > Server time:Thu, 22 Jan 2015 19:25:22 +0300 > > Probably this has to do with the images that have been added through > inlineformset, and the lack of iteritems method in Python 3.4. > > How can I fix this to be able to save the object along with the images > through Django's FormWizard? > > Thanks > > P.S.: Apologies for the long post. > > -- You received this message because you are subscribed to the Google Groups "Django users" group. 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