Django: Can class-based views accept two forms at a time?

Here's a scaleable solution. My starting point was this gist,

https://gist.github.com/michelts/1029336

i've enhanced that solution so that multiple forms can be displayed, but either all or an individual can be submitted

https://gist.github.com/jamesbrobb/748c47f46b9bd224b07f

and this is an example usage

class SignupLoginView(MultiFormsView):
    template_name = 'public/my_login_signup_template.html'
    form_classes = {'login': LoginForm,
                    'signup': SignupForm}
    success_url = 'my/success/url'

    def get_login_initial(self):
        return {'email':'[email protected]'}

    def get_signup_initial(self):
        return {'email':'[email protected]'}

    def get_context_data(self, **kwargs):
        context = super(SignupLoginView, self).get_context_data(**kwargs)
        context.update({"some_context_value": 'blah blah blah',
                        "some_other_context_value": 'blah'})
        return context

    def login_form_valid(self, form):
        return form.login(self.request, redirect_url=self.get_success_url())

    def signup_form_valid(self, form):
        user = form.save(self.request)
        return form.signup(self.request, user, self.get_success_url())

and the template looks like this

<form class="login" method="POST" action="{% url 'my_view' %}">
    {% csrf_token %}
    {{ forms.login.as_p }}

    <button name='action' value='login' type="submit">Sign in</button>
</form>

<form class="signup" method="POST" action="{% url 'my_view' %}">
    {% csrf_token %}
    {{ forms.signup.as_p }}

    <button name='action' value='signup' type="submit">Sign up</button>
</form>

An important thing to note on the template are the submit buttons. They have to have their 'name' attribute set to 'action' and their 'value' attribute must match the name given to the form in the 'form_classes' dict. This is used to determine which individual form has been submitted.


By default, class-based views only support a single form per view. But there are other ways to accomplish what you need. But again, this cannot handle both forms at the same time. This will also work with most of the class-based views as well as regular forms.

views.py

class MyClassView(UpdateView):

    template_name = 'page.html'
    form_class = myform1
    second_form_class = myform2
    success_url = '/'

    def get_context_data(self, **kwargs):
        context = super(MyClassView, self).get_context_data(**kwargs)
        if 'form' not in context:
            context['form'] = self.form_class(request=self.request)
        if 'form2' not in context:
            context['form2'] = self.second_form_class(request=self.request)
        return context

    def get_object(self):
        return get_object_or_404(Model, pk=self.request.session['value_here'])

    def form_invalid(self, **kwargs):
        return self.render_to_response(self.get_context_data(**kwargs))

    def post(self, request, *args, **kwargs):
        self.object = self.get_object()
        if 'form' in request.POST:
            form_class = self.get_form_class()
            form_name = 'form'
        else:
            form_class = self.second_form_class
            form_name = 'form2'

        form = self.get_form(form_class)

        if form.is_valid():
            return self.form_valid(form)
        else:
            return self.form_invalid(**{form_name: form})

template

<form method="post">
    {% csrf_token %}
    .........
    <input type="submit" name="form" value="Submit" />
</form>

<form method="post">
    {% csrf_token %}
    .........
    <input type="submit" name="form2" value="Submit" />
</form>