Thanks Alex. That works great. Just wondering: It seems like this causes the form to be bound, which causes it to render all its errors. I can set .is_bound to False manually to get around this, is this what I should be doing?
On Jun 3, 5:15 pm, Alex Gaynor <alex.gay...@gmail.com> wrote: > On Wed, Jun 3, 2009 at 5:12 PM, justind <justin.don...@gmail.com> wrote: > > > Hello, > > > I'm using the following to provide a select box with filtered choices: > > > class AssetForm(ModelForm): > > """Asset form takes a project id. It only allows workstreams > > attached to > > this project name.""" > > workstreams = forms.ModelChoiceField(Workstream, None) > > def __init__(self, *args, **kwargs): > > super(AssetForm, self).__init__(*args, **kwargs) > > if self.instance: > > self.fields['workstreams'].queryset = > > Workstream.objects.filter(project__id=args[0]) > > self.fields['workstreams'].widget.choices = > > self.base_fields['workstreams'].choices > > > I instantiate it > > > f = AssetForm(1) # 1 is the number of a project, which I filter with. > > > It seems to work, and I can poke around at the fields and choices. > > > but when I try to render it: > > > f.as_p() > > > I get: > > > Traceback (most recent call last): > > File "<console>", line 1, in <module> > > File "django\django\forms\forms.py", line 191, in as_p > > return self._html_output(u'<p>%(label)s %(field)s%(help_text)s</ > > p>', u'%s', > > '</p>', u' %s', True) > > File "django\django\forms\forms.py", line 139, in _html_output > > top_errors = self.non_field_errors() # Errors that should be > > displayed above > > all fields. > > File "django\django\forms\forms.py", line 199, in non_field_errors > > return self.errors.get(NON_FIELD_ERRORS, self.error_class()) > > File "django\djang > > o\forms\forms.py", line 111, in _get_errors > > self.full_clean() > > File "django\django\forms\forms.py", line 218, in full_clean > > value = field.widget.value_from_datadict(self.data, self.files, > > self.add_pre > > fix(name)) > > File "django\django\forms\widgets.py", line 170, in > > value_from_datadict > > return data.get(name, None) > > AttributeError: 'int' object has no attribute 'get' > > > Any ideas? > > > Thanks, > > Justin > > You need to remove the 1 from args before instantiating the Form, so > something like: > > def __init__(self, *args, **kwargs): > id = args[0] > args = args[1:] > etc... > > Otherwise django thinks 1 is the first argument which is supposed to be the > data dictionary.. > > Alex > -- > "I disapprove of what you say, but I will defend to the death your right to > say it." --Voltaire > "The people's good is the highest law."--Cicero --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-users@googlegroups.com To unsubscribe from this group, send email to django-users+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/django-users?hl=en -~----------~----~----~----~------~----~------~--~---
