具有内联模型形式或表单集的基于django的类的视图
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_factoryinlineformset_factory(Bill, Item)
然后通过标准视图进行处理。
现在我在想,是否有一种方法可以使用基于类的视图(而不是用于管理界面)来实现相同的目的(意思是:使用内联代码来添加/编辑属于账单的项目)。
回答:
关键点是:
产生FormSet
内小号forms.py
使用inlineformset_factory
:
BookImageFormSet = inlineformset_factory(BookForm, BookImage, extra=2)BookPageFormSet = inlineformset_factory(BookForm, BookPage, extra=5)
FormSet
在的CreateView
类中返回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
用于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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