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我怎样才能建立多个提交按钮Django的形式? (4)

我有一个电子邮件输入和两个提交按钮来订阅和取消订阅通讯:

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

我也有班级形式:

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

我必须写我自己的clean_email方法,并且我需要知道哪个按钮被submited。 但提交按钮的值不在self.cleaned_data字典中。 我可以得到其他按钮的值吗?


一个网址相同的看法! 像这样!

###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>

你也可以这样做,

 <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>


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

您可以在clean_email方法中使用self.data在验证之前访问POST数据。 它应该包含一个名为newsletter_subnewsletter_unsub按键,具体取决于按下哪个按钮。

# in the context of a django.forms form

def clean(self):
    if 'newsletter_sub' in self.data:
        # do subscribe
    elif 'newsletter_unsub' in self.data:
        # do unsubscribe

这是一个老问题,但我遇到了同样的问题,并找到了适用于我的解决方案:我写了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






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