Django 2.1 - DeleteView - 只有所有者可以删除或重定向

Question

我正在做一个包含一份小报纸的练习，我只想允许文章创建者删除它，否则，重定向到“主页”页面。但是，这不起作用，我只能提高 Http404。

views.py：

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

我尝试过：

return redirect('home') 

不是“raise Http404”，而是 Django 抛出这个错误：

'HttpResponseRedirect' object has no attribute 'delete'

解决这种行为的方法是什么？为什么会这样？

感谢您的帮助！！

---

编辑：（在@SK.Fazlee Rabby 评论之后，该帖子让我走上了正确的道路）

这很好用！谢谢，SK。法兹里拉比

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 如果您需要更改删除对象的行为，您应该覆盖删除方法而不是 get_object，get_object 只是为了获取对象（如果您引发 404 django 处理此错误并返回 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')