Django 2.1 DeleteView只有所有者可以删除或重做

Question

我在做一个练习，里面有一份小报纸，我只允许文章创建者删除它，否则，重定向到“主页”页面。但是，那没用，我只能提高Http404。在

在视图.py公司名称：

class ArticleDeleteView(LoginRequiredMixin, DeleteView):
    model = Article
    template_name = 'article_delete.html'
    success_url = reverse_lazy('article_list')

    def get_object(self, queryset=None):
        """ Hook to ensure object is owned by request.user """
        obj = super(ArticleDeleteView, self).get_object()
        if not obj.author == self.request.user:
            print(redirect('home'))
            raise Http404
        return obj

我试着：

^{pr2}$

不是“raise Http404”，而是Django抛出以下错误：

'HttpResponseRedirect' object has no attribute 'delete'

解决这种行为的方法是什么？为什么会发生这种情况？在

谢谢你的帮助！！在

---

编辑：（跟随@SK。Fazlee Rabby评论，那篇文章让我走上了正确的道路）

这真是太好了！谢谢，SK。法兹利·拉比

def dispatch(self, request, *args, **kwargs):
    """ Making sure that only authors can delete Articles """
    obj = self.get_object()
    if obj.author != self.request.user:
        messages.error(request, 'Document not deleted.')
        return redirect('article_list')
    messages.success(request, 'Document deleted.')
    return super(ArticleDeleteView, self).dispatch(request, *args, **kwargs)

Answer 1

首先 如果你需要改变删除对象的行为，你应该覆盖delete方法而不是get_object，get_object只是为了得到这个对象（如果你提出404 django处理这个错误并返回http404）

你应该这样写代码：

class ArticleDeleteView(LoginRequiredMixin, DeleteView):
    model = Article
    template_name = 'article_delete.html'
    success_url = reverse_lazy('article_list')

    def delete(self, request, *args, **kwargs):
        """
        Call the delete() method on the fetched object and then redirect to the
        success URL.
        """
        self.object = self.get_object()
        success_url = self.get_success_url()
        if self.object.author == self.request.user:
            return redirect('confirm_deleting', ) # Also add id of Article

        return redirect('home')


class ConfirmingArticleDeleteView(LoginRequiredMixin, DeleteView):
    model = Article
    template_name = 'article_delete.html' # need change
    success_url = reverse_lazy('article_list')

    def delete(self, request, *args, **kwargs):
        """
        Call the delete() method on the fetched object and then redirect to the
        success URL.
        """
        self.object = self.get_object()
        success_url = self.get_success_url()
        if self.object.author == self.request.user:
            self.object.delete()
            return redirect('home')

        return redirect('home')