Malcolm,
Here is the traceback from line 41:
c:\python24\lib\site-packages\django\newforms\models.py in
save_instance
34. opts = instance.__class__._meta
35. if form.errors:
36. raise ValueError("The %s could not be changed because the data
didn't validate." % opts.object_name)
37. clean_data = form.clean_data
38. for f in opts.fields:
39. if not f.editable or isinstance(f, models.AutoField):
40. continue
41. setattr(instance, f.name, clean_data[f.name]) ...
42. if commit:
43. instance.save()
44. for f in opts.many_to_many:
45. setattr(instance, f.attname, clean_data[f.name])
46. # GOTCHA: If many-to-many data is given and commit=False, the
many-to
I'm not sure what version I'll have to check.
The reason for using the HoldingForm is to eliminate the display of
the FK (another long post of mine), not so much adding fields, but to
limit them.
BTW, thanks for a quick response, I see a plethora of responses from
you on almost every topic!
J
On May 21, 6:54 pm, Malcolm Tredinnick <[EMAIL PROTECTED]>
wrote:
> Hi John,
>
>
>
> On Mon, 2007-05-21 at 18:41 -0700, John M wrote:
> > i am getting a key error with the following:
>
> > sqlite3
>
> > class Holding(models.Model):
> > portfolio = models.ForeignKey(Portfolio, editable=False)
> > symbol = models.CharField(maxlength=10)
> > reason = models.CharField(maxlength=200, blank=True,
> > null=True)
> > shares = models.FloatField(max_digits=7, decimal_places=3,
> > blank=True)
>
> > class HoldingForm(forms.Form):
> > symbol = forms.CharField(max_length=10)
> > reason = forms.CharField(max_length=200)
> > aimtype = forms.ChoiceField(choices=AIMTYPE_CHOICES)
>
> > def update1(request, portid, holdid=None):
>
> > objportfolio = Portfolio.objects.get(pk=portid)
>
> > if holdid is None:
> > modelform = form_for_model(Holding, form=HoldingForm)
>
> I'm not 100% certain what you're trying to do with this line. Normally,
> you would only pass in the "form" attribute if you are overriding
> methods on the BaseForm class (or providing extra methods). You seem to
> be trying to provide some fields as well. What are you expecting to
> happen? (You could well be doing something brilliant; I just haven't
> seen this approach and I can't work out what it should do.)
>
>
>
> > form = modelform()
> > else:
> > instance = Holding.objects.get(id__exact=holdid)
> > modelform = form_for_instance(instance, form=HoldingForm)
> > form = modelform(instance.__dict__)
>
> > if request.POST:
> > form = modelform(request.POST)
> > if form.is_valid():
> > obj = form.save(commit=False)
> > obj.portfolio = objportfolio
> > obj.save()
> > return HttpResponseRedirect('/holding')
>
> > when i try to add a new holding, i get a keyerror:
> > Request Method: POST
> > Request URL: http://127.0.0.1:8000/holding/update1/2/
> > Exception Type: KeyError
> > Exception Value: 'shares'
> > Exception Location: c:\python24\lib\site-packages\django\newforms
> > \models.py in save_instance, line 41
>
> > any ideas?
>
> The code in newforms/models.py has shuffled around a bit lately, so what
> is line 41 in your case? What revision of the code are you using, while
> we're at it?
>
> Looking at what might be causing this leaves me confused because we seem
> to be checking that all the necessary pieces are in place before we try
> to access anything. So if you could fill in the above details (and give
> the full traceback -- see below), it might shine some more light on the
> problem.
>
> It's probably more useful, too, to post the full traceback, in cases
> like this. I can guess that the problem results from the
> form.save(commit=False) line in your code, but it would be nice to
> confirm that.
>
> A little bit further down the error screen is a link (although it may
> not look like a link) marked something like "show cut-and-paste
> version". Click on that and you'll get something you can paste into an
> email, showing the full traceback.
>
> Regards,
> Malcolm
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