尝试提交视图并收到 405 错误

Question

我正在尝试在用户配置文件中实施评论部分，但是当我尝试提交评论时，即使我在管理面板中创建评论时它仍会正常显示在配置文件中，但我仍然收到此 405 错误。如果你能帮忙的话。

提前致谢

代码：

型号

class Review(models.Model):
    user = models.ForeignKey(User, on_delete=models.CASCADE)
    expert = models.ForeignKey(Expert, on_delete=models.CASCADE)
    timestamp = models.DateTimeField(auto_now_add=True)
    content = models.TextField()

表格

class ReviewForm(forms.ModelForm):
    content = forms.CharField(widget=forms.Textarea(attrs={
    'rows':3,
    }))
    class Meta:
        model = Review
        fields = ('content',)

查看

class ExpertDetailView(DetailView):
    model = Expert

    def expert(self, *args, **kwargs):
        form = ReviewForm(self.request.POST)
        if form.is_valid():
            expert = self.get_object()
            review = form.instance
            review.user = self.request.user
            review.expert = expert
            review.save()
            print ('worked')

        print ('worked')

    def get_object(self, **kwargs):
        object = super().get_object(**kwargs)
        return object

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context.update({
            'form': ReviewForm()
        })
        return context

最后是模板

<h4>Leave a comment below</h4>
      <form method='POST'>
          {% csrf_token %}
          {{ form|crispy}}
          <br>
          <button class='btn btn-primary' type='submit'>review</button>
      </form>
      <hr />
      <h5>Comments</h5>
      {% for review in object.reviews %}
          <div>
              <p>{{ review.content }}
              <br />
              <small>{{ review.timestamp|timesince }} ago</small>
          </div>
          <hr />
      {% endfor %}

Answer 1

405 表示方法不被允许。这是有道理的，因为你没有写def post(request, *args, **kwargs)，而DetailView 默认只会写

话虽如此，自己实现所有逻辑可能不是一个好主意。您可以让ModelFormMixin 已经让您完成大部分工作：

from django.contrib.auth.mixins import LoginRequiredMixin
from django.views.generic.edit import ModelFormMixin

class ExpertDetailView(LoginRequiredMixin, ModelFormMixin, DetailView):
    model = Expert
    form_class = ReviewForm
    success_url = 'some-url'

    def post(self, request, *args, **kwargs):
        self.object = self.get_object()
        form = self.get_form()
        if form.is_valid():
            return self.form_valid(form)
        else:
            return self.form_invalid(form)

    def form_valid(self, form):
        review = form.instance
        review.user = self.request.user
        review.expert = self.object
        form.save()
        return super().form_valid(form)

注意：您可以将视图限制为基于类的视图，以向经过身份验证的用户提供 LoginRequiredMixin mixin [Django-doc].