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A Django class based "list and form" view
"""
This generic view displays a list of objects and a simple ModelForm to add a new
object to the list.
Just subclass this view and override the attributes and methods that you need. You
will probably need to override at least 'model', 'form_class' and 'success_url'.
See the documentation of the used mixins and ProcessFormView in
https://docs.djangoproject.com/en/1.4/ref/class-based-views/
"""
from django.views.generic.list import MultipleObjectMixin, MultipleObjectTemplateResponseMixin
from django.views.generic.edit import ModelFormMixin, ProcessFormView
class ListAppendView(MultipleObjectMixin,
MultipleObjectTemplateResponseMixin,
ModelFormMixin,
ProcessFormView):
""" A View that displays a list of objects and a form to create a new object.
The View processes this form. """
template_name_suffix = '_append'
allow_empty = True
def get(self, request, *args, **kwargs):
self.object_list = self.get_queryset()
allow_empty = self.get_allow_empty()
if not allow_empty and len(self.object_list) == 0:
raise Http404(_(u"Empty list and '%(class_name)s.allow_empty' is False.")
% {'class_name': self.__class__.__name__})
self.object = None
form_class = self.get_form_class()
form = self.get_form(form_class)
context = self.get_context_data(object_list=self.object_list, form=form)
return self.render_to_response(context)
def post(self, request, *args, **kwargs):
self.object = None
return super(ListAppendView, self).post(request, *args, **kwargs)
def form_invalid(self, form):
self.object_list = self.get_queryset()
return self.render_to_response(self.get_context_data(object_list=self.object_list, form=form))
@mightyCelu
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mightyCelu commented Jul 9, 2017

wouldn't it be better to delegate the form_invalid call to get?

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