Building a formset dynamically

Posted by vorpyg on Stack Overflow See other posts from Stack Overflow or by vorpyg
Published on 2010-06-07T11:47:30Z Indexed on 2010/06/07 11:52 UTC
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I initially wrote code to build a form dynamically, based on data from the DB, similar to what I described in my previous SO post.

As SO user Daniel Roseman points out, he would use a formset for this, and now I've come to the realization that he must be completely right. :)

My approach works, basically, but I can't seem to get validation across the entire form to be working properly (I believe it's possible, but it's getting quite complex, and there has to be a smarter way of doing it => Formsets!).

So now my question is: How can I build a formset dynamically? Not in an AJAX way, I want each form's label to be populated with an FK value (team) from the DB.

As I have a need for passing parameters to the form, I've used this technique from a previous SO post.

With the former approach, my view code is (form code in previous link):

def render_form(request):
  teams = Team.objects.filter(game=game)
  form_collection = [] 
  for team in teams:
            f = SuggestionForm(request.POST or None, team=team, user=request.user)
            form_collection.append(f)

Now I want to do something like:

def render_form(request):
  teams = Team.objects.filter(game=game)
  from django.utils.functional import curry
  from django.forms.formsets import formset_factory

  formset = formset_factory(SuggestionForm)
  for team in teams:
      formset.form.append(staticmethod(curry(SuggestionForm, request.POST or None, team=team, user=request.user)))

But the append bit doesn't work. What's the proper way of doing this?

Thanks!

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