Thank you for your reply.
Yes I have selected a user and folder.
I believe ManyToMany fields are always optional (hence many to many).
So my users and company fields are optional, but my folder field
isn't.
When I add a new Application in the Admin I do specify a folder and
users (if I don't I would at least get a 'Required field' error for
the folder field).
I've tested the method above (clean function) with another model that
has a manytomany field, and it does exactly the same thing, even when
I really do fill in the data. In fact, if I delibirately throw an
error and look in the debug info I can see the ManyToMany field data
being present in the POST data, just like I can when I do the same
thing with the above models.
Btw, I just noticed a typo in my Folder model description above,
that's not the issue as it's correct in my original model.
On Jul 14, 2:02 pm, Nuno Maltez <nuno.li...@gmail.com> wrote:
> Hi,
>
> Just a guess: have you actually selected a user and a folder when
> submitting the form? I think only valid field are present on the
> cleaned_data dict, and your users and folder fields are not optional
> (blank=True, null=True).
>
> hth,
> nuno
>
> On Tue, Jul 13, 2010 at 1:45 PM, Heleen <heleen...@gmail.com> wrote:
> > Hello,
>
> > I have the following classes:
> > class Application(models.Model):
> > users = models.ManyToManyField(User, through='Permission')
> > folder = models.ForeignKey(Folder)
>
> > class Folder(models.Model):
> > company = models.ManyToManyField(Compnay)
>
> > class UserProfile(models.Model):
> > user = models.OneToOneField(User, related_name='profile')
> > company = models.ManyToManyField(Company)
>
> > Now when I save application, I would like to check if the users do not
> > belong to the application's folder's companies.
> > I have posed this question before and someone came up with the
> > following sollution:
> > forms.py:
> > class ApplicationForm(ModelForm):
> > class Meta:
> > model = Application
>
> > def clean(self):
> > cleaned_data = self.cleaned_data
> > users = cleaned_data['users']
> > folder = cleaned_data['folder']
> > if
> > users.filter(profile__company__in=folder.company.all()).count() > 0:
> > raise forms.ValidationError('One of the users of this
> > Application works in one of the Folder companies!')
> > return cleaned_data
>
> > admin.py
> > class ApplicationAdmin(ModelAdmin):
> > form = ApplicationForm
>
> > This seems like right the way to go about this. The problem is that
> > neither the users nor folder fields are in the cleaned_data and I get
> > a keyerror when it hits the users = cleaned_data['users'] line.
>
> > I was hoping that someone here could explain to me why these
> > manytomany fields don't show up in cleaned_data and that someone could
> > possibly give me a sollution to my problem.
>
> > Thanks!
> > Heleen
>
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