Question

我需要获取正在尝试创建要存储在模型中的评论的用户的profile_id。我可以获取django中内置的User属性，但是当我尝试使用以下内容获取profile_id时，出现“ prof is not defined”错误。

views.py

    class ReviewCreateView(LoginRequiredMixin, CreateView):
      model = Review
      fields = ['rating', 'reviewtext']
      def get_context_data(self, **kwargs):
        context = super(ReviewCreateView, self).get_context_data(**kwargs)
        context['prof'] = Profile.objects.values_list('id', flat=True).filter(user_id=self.request.user.id)
        return context
      def form_valid(self, form):
        form.instance.product = self.request.GET.get('pk')
        form.instance.author = self.request.user
        form.instance.profile = prof
        return super().form_valid(form)

models.py

class Profile(models.Model):
    user = models.OneToOneField(User, on_delete = models.CASCADE)

class Review(models.Model):
    product = models.ForeignKey(Product, on_delete=models.CASCADE)
    profile = models.ForeignKey(Profile, on_delete=models.CASCADE)
    author = models.ForeignKey(User, on_delete=models.CASCADE)
    rating = models.PositiveSmallIntegerField(default=1, validators = [MinValueValidator(1), MaxValueValidator(5)])
    reviewtext = models.TextField()

class Product(models.Model):
    name = models.CharField(max_length=100)

Answer 1

个人资料通过外键链接到User，因此我可以在下面写这行，在我添加self.kwargs行之前，product_id也受到了空约束。

def form_valid(self, form, **kwargs):
    form.instance.product_id = self.kwargs['pk']
    form.instance.author = self.request.user
    form.instance.profile = self.request.user.profile
    return super().form_valid(form)

Django-form_valid（）变量未定义

1 个答案: