formset in form_class

[scha...@gmail.com]

Hi All,
in a view deriving from UpdateView the form_class attribute gets assigned with a formset.
the View then overrides the get_form function.

class RLFormView(LoginRequiredMixin, StaffuserRequiredMixin, UpdateView):
    template_name = 'abc/layout.html'
    form_class = LayoutFormSet
    fields = '__all__'
....
    def get_form(self, form_class=None):
        if self.request.POST:
            return form_class(self.request.POST)
        else:
            initial = [{'param': 'a',
                        'choosen': 'value'}]
            return form_class(initial=initial)

I'm just wondering if this is a nice way of using the formset? Normally a form is assigned to form_class.

Thanks for hints
Schaf

[scha...@gmail.com]

Hi All,
problem solved.
The problem was the default value None for the form_class parameter at get_form.
It works when changing:

def get_form(self, form_class=None):


to:

def get_form(self, form_class=LayoutFormSet):


Cheers
Schaf

[Melvyn Sopacua]

On Tuesday 31 January 2017 08:55:15 scha...@gmail.com wrote:

 

> class RLFormView(LoginRequiredMixin, StaffuserRequiredMixin,

> UpdateView): template_name = 'abc/layout.html'

> form_class = LayoutFormSet

> fields = '__all__'

> ....

 

The easy fix (and proper way to support the declarative pattern):

> def get_form(self, form_class=None):

form_class = form_class or self.form_class

> if self.request.POST:

> return form_class(self.request.POST)

> else:

> initial = [{'param': 'a',

> 'choosen': 'value'}]

> return form_class(initial=initial)

 

--

Melvyn Sopacua