Django form ValidationError

Question

我在視圖中有兩種形式。一個htlm格式包含form和formset，其他html格式只包含單一格式。

當我試圖提交燎形式（提醒），我收到此錯誤：

[u'ManagementForm data is missing or has been tampered with'] 

查看：

form_class = CreateEventForm 
    second_form_class = modelformset_factory(EventTime, form = EventTimeForm, extra=3, formset=EventTimeFormset) 
    third_form_class = Reminder 
    model = Event 
    template_name = 'eventAdmin.html' 
    def get_context_data(self, **kwargs): 
      context = super(EventAdminPage, self).get_context_data(**kwargs) 
      context['form'] = self.form_class(self.request.POST or None, prefix="form", instance = self.object) 
      context['formset'] = self.second_form_class(
       self.request.POST or None, 
       prefix="formset", 
       queryset=context['event_times']) 
      context['reminder_form'] = Reminder(self.request.POST or None) 
      return context 

     def post(self, request, **kwargs): 
      self.object = self.get_object() 
      event_times = EventTime.objects.filter(event = self.object).exclude(start_time = None) 
      if 'update_event_form' in request.POST: 
       form_class = self.get_form_class() 
       form = self.form_class(request.POST, prefix="form", instance=self.get_object()) 
       formset = self.second_form_class(request.POST, prefix="formset", queryset=event_times) 
       if form.is_valid() and formset.is_valid(): 
        event = form.save() 
        event_times = formset.save() 
        return HttpResponseRedirect('/event-admin-%s' %self.kwargs['event_id']) 
       else: 
        return self.render_to_response(
         self.get_context_data(form=form, formset=formset)) 
      if 'reminder_form' in request.POST: 
       form_class = self.second_form_class 
       form_name = 'Reminder' 
       form = form_class(request.POST) 
       if form.is_valid(): 
        form.save(commit=False) 
        message = form.cleaned_data.get('text') 
        return HttpResponseRedirect('/event-admin-%s' %self.kwargs['event_id']) 
       else: 
        return self.render_to_response(
         self.get_context_data(form=form)) 

形式的HTML即會引發錯誤：

<form method='POST' action=''><input type='hidden' name='csrfmiddlewaretoken' value='3uQyEn4m8bHpM7Jy6a8WKQz5A8Uf6RZF' /> 


<div id="div_id_text" class="form-group"> <label for="id_text" class="control-label requiredField"> 
       Text<span class="asteriskField">*</span> </label> <div class="controls "> <textarea class="textarea form-control" cols="40" id="id_text" maxlength="500" name="text" rows="10"> 
</textarea> </div> </div> 

      <input class="btn btn-primary" type="submit" name="reminder_form" value="Send" /> 
     </form> 

Answer 1

您需要在<form method='POST' action=''>之後加上這條線{{ form.management_form }}。這由Django用來管理表單集中的表單。

<form method='POST' action=''> 
    {{ form.management_form }} 
    <input type='hidden' name='csrfmiddlewaretoken' value='3uQyEn4m8bHpM7Jy6a8WKQz5A8Uf6RZF' /> 
    <div id="div_id_text" class="form-group"> 
    <label for="id_text" class="control-label requiredField"> 
     Text 
     <span class="asteriskField">*</span> 
    </label> <div class="controls "> 
    <textarea class="textarea form-control" cols="40" id="id_text" maxlength="500" name="text" rows="10"> 

    </textarea> 
    </div> 
    </div> 

    <input class="btn btn-primary" type="submit" name="reminder_form" value="Send" /> 
</form>