Hello,
I may do something, what the formsets are not intended for.
I have forms which assort data of several different Models.
This is because of aggregating data in logical blocks in the UI.
Additionally I have some fields, which have to be filled dynamically.
There is as well the possibility for the user in the UI, to generate
new blocks of data (Javascript).
The thing goes as follow.
Having for each logical data group a form,because there can be
blocks from 1 to n, using a formset for each.
Because I have a bunch of different set of those blocks, I have
several formsets.
Example:
The form:
class F(forms.Form):
foo = forms.CharField(choices=())
bar = forms.ChoiceField(choices=())
def __init__(self,*args,**kwargs):
foo = None
bar = None
if kwargs.has_key('foo'):
foo = kwargs.pop('foo')
if kwargs.has_key('bar'):
bar = kwargs.pop('bar')
super(F,self).__init__(*args,**kwargs)
if foo and bar:
self.fields['foo'] = forms.ChoiceField(choices=foo)
self.fields['bar'] = forms.ChoiceField(choices=bar)
class BaseFS(formsets.BaseFormSet):
def __init__(self,*args,**kwargs):
if kwargs.has_key('foo'):
self.foo = kwargs.pop('foo')
if kwargs.has_key('bar'):
self.bar = kwargs.pop('bar')
super(BaseFS,self).__init__(*args,**kwargs)
def _construct_forms(self):
self.forms = []
for i in xrange(self.total_form_count()):
self.forms.append(self._construct_form(i,foo=self.foo,
bar=self.bar))
The view:
def newd(request):
foo = [ (x,x) for x in Foo.objects.all() ]
bar = [ (x,x) for x in Bar.objects.all() ]
NFS = formset_factory(F,formset=BaseFS)
OtherFS = formset_factory(OtherF,formset=BaseOtherFS)
if request.method == 'POST':
fs = NFS(request.POST,foo=foo,bar=bar)
ofs = OtherFS(request.POST,foo=foo,bar=bar)
if fs.is_valid():
# get the data,distribute to the right model
return HttpResponse("valid really")
else:
return render_to_response('error.html',{'fs' : fs,'ofs'
: ofs})
else:
fs = NFS(foo=foo,bar=bar)
ofs = OtherFS(foo=foo,bar=bar)
return render_to_response('newd.html',{'fs' : fs,'ofs' : ofs})
This seems generally to work.But now comes the twist.
May be there are other twists in (my) code, which I do not see.
But this is one is a detail.
In the template:
{{ fs.management_form }}
{{ ofs.management_form }}
which produces
<input type=hidden name=form-TOTAL_FORMS value=1
id=id_form-TOTAL_FORMS />
<input type=hidden name=form-INITIAL_FORMS value=0
id=id_form-INITIAL_FORMS />
<input type=hidden name=form-TOTAL_FORMS value=1
id=id_form-TOTAL_FORMS />
<input type=hidden name=form-INITIAL_FORMS value=0
id=id_form-INITIAL_FORMS />
So,regrettably, therefore I can't differentiate between the count of
different formset data, which I have to.
I can't even prefix the values of the id.
There is no idea of this in,e.g.
django.forms.formsets.BaseFormSet._management_form:
else:
form = ManagementForm(auto_id=self.auto_id,
prefix=self.prefix, initial={
TOTAL_FORM_COUNT: self.total_form_count(),
INITIAL_FORM_COUNT: self.initial_form_count(),
MAX_NUM_FORM_COUNT: self.max_num
})
I hope the structure of my setup and the problem is clear to
understand...
Maybe someone has some hints in any direction.
gfk
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