Joseph,
Yes, for a new Document, I want to assign to an existing Category.
The initial arguement works for a form class, which is what I first
had, but then modified to use the new ModelForm class. The ModelForm
class does not seem to accept an initial arguement.
On Dec 22, 5:25 pm, "Joseph Kocherhans" <[EMAIL PROTECTED]> wrote:
> On 12/22/07, Yatla <[EMAIL PROTECTED]> wrote:
>
>
>
>
>
>
>
> > I need to initialize a selection in a M2M field of the Document
> > ModelForm during the first GET of a form that creates a new Document -
> > classes and view as follows:
>
> > class DocumentForm(forms.ModelForm):
> > class Meta:
> > model = Document
>
> > class Document(models.Model):
> > .......
> > categories = models.ManyToManyField(Category)
>
> > view function:
> > def create(request, category_name, template='edit2.html', params={}):
> > category = get_object_or_404(Category, name=category_name)
> > new_doc = Document(author=request.user, pub_date=datetime.now())
> > if request.method == 'POST':
> > form = DocumentForm(request.POST, instance=new_doc)
> > if form.is_valid():
> > .....
> > else:
> > form = DocumentForm(instance=new_doc) # todo: figure out how
> > to initialize categories
> > params['form'] = form
> > return render_to_response(template, params,
> > RequestContext(request))
>
> Are you trying to assign all new docs to an existing Category object
> then? I think if you used the 'initial' argument in in the form
> constructor it would work. Something like:
>
> initial_data={'categories': [category.id]}
> form = DocumentForm(request.POST, initial=initial_data, instance=new_doc)
>
> Joseph- Hide quoted text -
>
> - Show quoted text -
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