python - relaciones - tipos de formularios en django




¿Cómo puedo crear múltiples formularios de envío django? (4)

Tengo un formulario con una entrada para el correo electrónico y dos botones de envío para suscribirse y cancelar la suscripción al boletín informativo:

<form action="" method="post">
{{ form_newsletter }}
<input type="submit" name="newsletter_sub" value="Subscribe" />
<input type="submit" name="newsletter_unsub" value="Unsubscribe" />
</form>

También tengo forma de clase:

class NewsletterForm(forms.ModelForm):
    class Meta:
        model = Newsletter
        fields = ('email',)

Debo escribir mi propio método clean_email y necesito saber por qué botón se envió el formulario. Pero el valor de los botones de enviar no está en el diccionario self.cleaned_data . ¿Podría obtener valores de botones de lo contrario?


Ahora es una vieja pregunta, sin embargo, tuve el mismo problema y encontré una solución que funciona para mí: escribí MultiRedirectMixin.

from django.http import HttpResponseRedirect

class MultiRedirectMixin(object):
    """
    A mixin that supports submit-specific success redirection.
     Either specify one success_url, or provide dict with names of 
     submit actions given in template as keys
     Example: 
       In template:
         <input type="submit" name="create_new" value="Create"/>
         <input type="submit" name="delete" value="Delete"/>
       View:
         MyMultiSubmitView(MultiRedirectMixin, forms.FormView):
             success_urls = {"create_new": reverse_lazy('create'),
                               "delete": reverse_lazy('delete')}
    """
    success_urls = {}  

    def form_valid(self, form):
        """ Form is valid: Pick the url and redirect.
        """

        for name in self.success_urls:
            if name in form.data:
                self.success_url = self.success_urls[name]
                break

        return HttpResponseRedirect(self.get_success_url())

    def get_success_url(self):
        """
        Returns the supplied success URL.
        """
        if self.success_url:
            # Forcing possible reverse_lazy evaluation
            url = force_text(self.success_url)
        else:
            raise ImproperlyConfigured(
                _("No URL to redirect to. Provide a success_url."))
        return url

P.ej:

if 'newsletter_sub' in request.POST:
    # do subscribe
elif 'newsletter_unsub' in request.POST:
    # do unsubscribe

También puedes hacer esto,

 <form method='POST'>
    {{form1.as_p}}
    <button type="submit" name="btnform1">Save Changes</button>
    </form>
    <form method='POST'>
    {{form2.as_p}}
    <button type="submit" name="btnform2">Save Changes</button>
    </form>

CÓDIGO

if request.method=='POST' and 'btnform1' in request.POST:
    do something...
if request.method=='POST' and 'btnform2' in request.POST:
    do something...

una url a la misma vista! ¡al igual que!

###urls.py###
url(r'^$', views.landing.as_view(), name = 'landing'),

####views.py####
class landing(View):
    template_name = '/home.html'
    form_class1 = forms.pynamehere1
    form_class2 = forms.pynamehere2
        def get(self, request):
            form1 = self.form_class1(None)
            form2 = self.form_class2(None)
            return render(request, self.template_name, { 'register':form1, 'login':form2,})

         def post(self, request):
             if request.method=='POST' and 'htmlsubmitbutton1' in request.POST:
                    ## do what ever you want to do for first function ####
             if request.method=='POST' and 'htmlsubmitbutton2' in request.POST:
                     ## do what ever you want to do for second function ####
                    ## return def post###  
             return render(request, self.template_name, {'form':form,})


####/home.html####
#### form 1 ####
<form action="" method="POST" >
  {% csrf_token %}
  {{ register.as_p }}
<button type="submit" name="htmlsubmitbutton1">Login</button>
</form>
#### form 2 ####
<form action="" method="POST" >
  {% csrf_token %}
  {{ login.as_p }}
<button type="submit" name="htmlsubmitbutton2">Login</button>
</form>




submit