Variable number of inputs with Django forms possible?

Question

Is it possible to have a variable number of fields using django forms?

The specific application is this:

A user can upload as many pictures as they want on t

Answer 1

Yes, it's possible to create forms dynamically in Django. You can even mix and match dynamic fields with normal fields.

class EligibilityForm(forms.Form):
    def __init__(self, *args, **kwargs):
        super(EligibilityForm, self).__init__(*args, **kwargs)
        # dynamic fields here ...
        self.fields['plan_id'] = CharField()
    # normal fields here ...
    date_requested = DateField()

For a better elaboration of this technique, see James Bennett's article: So you want a dynamic form?

http://www.b-list.org/weblog/2008/nov/09/dynamic-forms/

Answer 2

Use either multiple forms (django.forms.Form not the tag)

class Foo(forms.Form):
    field = forms.Charfield()

forms = [Foo(prefix=i) for i in xrange(x)]

or add multiple fields to the form dynamically using self.fields.

class Bar(forms.Form):
    def __init__(self, fields, *args, **kwargs):
        super(Bar, self).__init__(*args, **kwargs)
        for i in xrange(fields):
            self.fields['my_field_%i' % i] = forms.Charfield()

Answer 3

If you run

python manage.py shell

and type:

from app.forms import PictureForm
p = PictureForm()
p.fields
type(p.fields)

you'll see that p.fields is a SortedDict. you just have to insert a new field. Something like

p.fields.insert(len(p.fields)-2, 'fieldname', Field())

In this case it would insert before the last field, a new field. You should now adapt to your code.

Other alternative is to make a for/while loop in your template and do the form in HTML, but django forms rock for some reason, right?