具有内联模型表单或表单集的基于 django 类的视图

2024-03-14

我有以下型号:

class Bill(models.Model):
    date = models.DateTimeField(_("Date of bill"),null=True,blank=True)

class Item(models.Model):
    name = models.CharField(_("Name"),max_length=100)
    price = models.FloatField(_("Price"))
    quantity = models.IntegerField(_("Quantity"))
    bill = models.ForeignKey("Bill",verbose_name=_("Bill"),
                             related_name="billitem")

我知道这是可能的:

from django.forms.models import inlineformset_factory
inlineformset_factory(Bill, Item)

然后通过标准视图对其进行处理。

现在我想知道,是否有一种方法可以实现相同的目的(意思是:使用内联来添加/编辑属于帐单的项目)基于类的视图(不适用于管理界面)。


要点是:

  1. 生成的FormSetforms.py using inlineformset_factory:

    BookImageFormSet = inlineformset_factory(BookForm, BookImage, extra=2)
    BookPageFormSet = inlineformset_factory(BookForm, BookPage, extra=5)
    
  2. 返回了FormSets 内CreateView上课于views.py:

    def get_context_data(self, **kwargs):
        context = super(BookCreateView, self).get_context_data(**kwargs)
        if self.request.POST:
            context['bookimage_form'] = BookImageFormSet(self.request.POST)
            context['bookpage_form'] = BookPageFormSet(self.request.POST)
        else:
            context['bookimage_form'] = BookImageFormSet()
            context['bookpage_form'] = BookPageFormSet()
        return context
    
  3. Used form_valid保存表单和表单集:

     def form_valid(self, form):
         context = self.get_context_data()
         bookimage_form = context['bookimage_formset']
         bookpage_form = context['bookpage_formset']
         if bookimage_form.is_valid() and bookpage_form.is_valid():
             self.object = form.save()
             bookimage_form.instance = self.object
             bookimage_form.save()
             bookpage_form.instance = self.object
             bookpage_form.save()
             return HttpResponseRedirect('thanks/')
         else:
             return self.render_to_response(self.get_context_data(form=form))
    
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