Hi,
I'm using form_for_model & form_for_instance with my specific
BaseForm.
The problem is that depending on some value, I need to display form
with
values limited.
There's a model:
class SomeGroup(models.Model):
name = models.CharField(primary_key=True)
class Place(models.Model):
name = models.CharField()
display_for = models.ManyToManyField(SomeGroup)
class News(models.Model):
somegroup = models.ForeignKey(SomeGroup)
content = models.TextField()
For example if group name is "children" the form will display/validate
only values
for which display_for has an appropriate SomeGroup(name=children)
value.
I get gropu name from url.. so it's a variable in my view.
For example:
/children/news/add/ which means: Add a new news in children group,
when displaying
form display/validate only places available for Somegroup=children.
This can be modified by self.fields['place'].choices = [(p.id, p.name)
for p in Place.objects.filter(display_for__pk=somegroup)
I've read the:
http://groups.google.com/group/django-users/browse_frm/thread/79e4c8fda31388e3/66b7a638054d68bc?lnk=gst&q=base_fields&rnum=1#66b7a638054d68bc
but it doesn't work as I'm getting error that the form got multiple
value for somegropu key.
Here's what I'm doing:
NewsForm = form_for_instance(News, form=NewsOfferForm)
if request.method == "POST":
form = NewsForm(request.POST, somegroup=somegroup)
if form.is_valid()
....
else:
form = NewsForm(somegroup=somegroup) # this one works fine, the
problem appears on POST
My forms.py
------------------
class NewsBaseForm(BaseForm):
def __init__(self, somegroup, *args, **kwargs):
super(NewsBaseForm, self).__init__(*args, **kwargs)
self.fields['place'].choices = [(p.id, p.name) for p in
Place.objects.filter(display_for__pk=somegroup)]
It would be the best If I could use the "somegroup" variable name in
my url,
and If I could provide it to the form under the same name so the form
can use it.( I may set it in my view via
form.cleaned_data['somegroup'] as well.) Also I don't want to
display the "somegroup" selector in form (I know how to work out this
problem).
Can anyone please help?
Thanks,
Robert
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