Question

我按照以下方式设置了我的课程：

class InspectionGroup(models.Model):
   group = models.CharField(max_length=50)

class InspectionItem(models.Model):
   group = models.ForeignKey(InspectionGroup)
   item = models.CharField(max_length=50)

class InspectionQuestion(models.Model):
   item = models.ForeignKey(InspectionItem)
   question = models.CharField(max_length=200)
   question_pass = models.BooleanField()

class InspectionResult(models.Model):
   question = models.ForeignKey(InspectionQuestion)
   vehicle = models.ForeignKey(Vehicle)
   result = models.BooleanField()
   submitted_by = models.ForeignKey(User, editable=False)
   date_time_submitted = models.DateTimeField(default=datetime.today,
                            editable=False)

我想要做的是让用户选择一个检查组，然后从该组中向他们呈现该组下的所有问题，其项目标题用于在模板中进行分组。然后他们会回答问题并发布结果。

我的问题是这样做了。我已经开始使用一些代码了，但它似乎不对。

forms.py
QuestionFormSet = inlineformset_factory(InspectionItem, InspectionQuestion, 
            form=QuestionForm, extra=0, can_delete=False)
class BaseInspectionFormset(BaseInlineFormSet):
    def add_fields(self, form, index):
        # allow the super class to create the fields as usual
        super(BaseInspectionFormset, self).add_fields(form, index)

        # created the nested formset
        try:
            instance = self.get_queryset()[index]
            pk_value = instance.pk
        except IndexError:
            instance=None
        pk_value = hash(form.prefix)

        # store the formset in the .nested property
        form.nested = [QuestionFormSet (instance = instance, 
                        prefix = 'INSPECTIONQUESTIONS_%s' % pk_value)]
InspectionFormset = inlineformset_factory(InspectionGroup, InspectionItem, 
          formset=BaseInspectionFormset, extra=0, can_delete=False)


view.py
def vehicle_inspection(request, stock_number, id):
vehicle = get_object_or_404(Vehicle, stock_number=stock_number)
group = get_object_or_404(InspectionGroup, pk=id)

if request.method == 'POST':
    formset = InspectionFormset(request.POST, instance=group)

    if formset.is_valid():
        results = formset.save_all()

        return HttpResponseRedirect(reverse('inspectionRecord', 
                  kwargs={'stock_number': stock_number}))
else:
    formset = InspectionFormset(instance=group)


return render_to_response('vehicles-inspection-form.html', {
       'formset': formset})

有人可以确认这个想法是否有用，或者我需要做些什么来获得我想要的功能？目前我收到此错误：

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

更新1 我已设法通过此链接from readthedocs

解决上述错误

但是，现在，由于模板只显示提交按钮，因此表单似乎是空的。

<form action="." method="POST" id="inspection_form">
    {% csrf_token %}
    <div id="form">
        {{ formset.management_form }}
        {% for form in formset.forms %}
            {{ form }}
            {% if form.nested %}
                {% for formset in form.nested %}
                    {{ formset.as_table }}
                {% endfor %}
            {% endif %}
         {% endfor %}
     </div>
     <div class="form_buttons">
         <button type="submit" name="confirm" id="confirm">
             <span>Submit</span>
         </button>
     </div>
 </form>

现在可能出现什么问题？

Answer 1

文档似乎有答案：https://docs.djangoproject.com/en/dev/topics/forms/formsets/#understanding-the-managementform

编辑：for form in formset代替formset.forms？

和{{ form.as_table }}代替{{ form }}。

Django内联formset设置

1 个答案: