如何删除答案（正文中的代码）？ [英] How can I delete the answers (code in body)?

问题描述

我正在创建一个实践问答网站，我创建了答案和问题模型并将它们链接在一起，但是我无法访问为删除答案模型而设置的模板，因此创建了 DeleteView 删除问题。以下是代码：

I am creating a Q&A website for practice, I created the answer and the question model and linked them together, however I can not access the template that I set for the deletion of the answer model, I created a DeleteView to delete the question. Here is the code:

views.py ：

class Politics_post_details(DeleteView):
    model = PoliticsPost
    context_object_name = 'politicsposts'
    pk_url_kwarg = 'qid'

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        # now you can get any additional information you want from other models
        question = get_object_or_404(PoliticsPost, pk=self.kwargs.get('qid'))
        context['answers'] = Answer.objects.filter(post=question).order_by('-date_posted')
        return context

class AnswerDelete(UserPassesTestMixin,DetailView):
    model = Answer
    success_url = reverse_lazy('Lisk home')
    pk_url_kwarg = 'aid'

    def test_func(self):
        answer = self.get_object()
        if self.request.user ==answer.author:
            return True
        return False

urls.py （不是root）：

path('politicspost/<int:qid>/createanswer/',views.CreateAnswer.as_view(template_name='lisk_templates/createanswer.html'),name = 'Answer'),
path('politicspost/<int:qid>/answer/<int:aid>/delete/',views.AnswerDelete.as_view(template_name = 'lisk_templates/answer_delete.html'),name='Answer_Delete'), 
path('politicspost/<int:qid>/',views.Politics_post_details.as_view(template_name='lisk_templates/politics_post_details.html'),

我创建了模板，但是只要尝试要访问它，它给我一个错误，如下所示：

I created the template but whenever I try to access it, it gives me an error as follows:

NoReverseMatch at /politicspost/29/
Reverse for 'Answer_Delete' with arguments '(36,)' not found. 1 pattern(s) tried: ['politicspost/(?P<qid>[0-9]+)/answer/(?P<aid>[0-9]+)/delete/$']

谢谢。

answer_delete.html：

answer_delete.html:

{%extends "lisk_templates/base.html"%}
{% block title %}
    Page title
{% endblock title %}

{% block body%}

<div class="feed" style="background-color:lightred;"><form method="POST">
    {% csrf_token %}
    <h3>Are you sure that you want to delete this answer: <br>
        {{ object.content }}</h3>
    <button id="signin" type="submit">Yes</button>  <a href="{% url 'politics_post_details' object.id %}" style="margin-left:10px;"> No</a>
    </form>
</div>
{% endblock body %}

推荐答案

您有很多问题。最大的一个是您已切换 DeleteView 和 DetailView （您的 DeleteView 是 DetailView ，反之亦然）。

You have a number of issues. The biggest one is that you have switched DeleteView and DetailView (your DeleteView is a DetailView and vice versa).

然后您应该将模板重命名为 answer_confirm_delete 或将 template_name_suffix 添加到您的 DeleteView 中。请参阅文档以获取更多详细信息：

And then you should either rename your template to answer_confirm_delete or add the template_name_suffix to your DeleteView. See the documentation for further details:

https://docs.djangoproject.com/en/3.0/ref/class-based-views/generic-editing/#django.views.generic。 edit.DeleteView

如果您使用Django的DeleteView，则无需在模板中指定url，它将为您完成所有工作。只要确保您在 urls.py 中正确指定了URL即可。解决这些问题，然后看看是否能解决问题。

If you use Django's DeleteView, you don't need to specify a url in the template, it will do all the work for you. Just make sure you specify the url correctly in your urls.py. Fix these issues and see if it works then.

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