Django - 基于类的视图问题如何在同一模板中结合 DetailView 和 ListView

Question

谁能告诉我如何将详细视图与列表视图结合并在同一个模板中显示信息，我会向你解释，我正在学习 Django，我正在尝试创建一个问答网络应用程序，我需要显示带有所有 awnsers 的问题，我需要在我的 detailview 中显示一个特定问题，显示在所有它 awsers 下方，比如 stackoverflow

#models.py
from django.db import models
from django.conf import settings
from django.contrib.auth.models import User


# Create your models here.
class Question(models.Model):

    # user = models.OneToOneField(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
    user = models.ForeignKey(User, on_delete=models.CASCADE, related_name="question", null=True)
    name = models.CharField(max_length=100)
    description = models.TextField(max_length=100)
    date = models.DateTimeField(auto_now_add=True)
    cant_resp = models.IntegerField(default=0)
    question_type = models.CharField(max_length=50, choices=QUESTION_TYPES_CHOICES)

    def __str__(self):
        return self.description




class Anwser(models.Model):

    # user = models.OneToOneField(settings.AUTH_USER_MODEL,on_delete=models.CASCADE)
    user = models.ForeignKey(User, on_delete=models.CASCADE, related_name="anwser", null=True)
    question = models.ForeignKey(Question, on_delete=models.CASCADE)
    text = models.TextField(max_length=400)
    date= models.DateTimeField(auto_now_add=True)

#and this are my views.py
from django.shortcuts import render, redirect
from django.urls import reverse, reverse_lazy
from django.contrib.auth.mixins import  LoginRequiredMixin
from django.views import generic

from .forms import QuestionForm, AnwserForm
from .models import Question

# Create your views here.

class QuestionListView(LoginRequiredMixin, generic.ListView):
    template_name = 'anwserquestions/question_list.html'
    context_object_name = 'questions'

    def get_queryset(self):

        return Question.objects.all()

def createquestion(response):
    if response.method == "POST":
        print("Its POST method")
        form = QuestionForm(response.POST)
        # user =response.user
        if form.is_valid():
            name = form.cleaned_data["name"]
            description=form.cleaned_data['description'],
            question_type=form.cleaned_data['question_type'],
            # date=form.cleaned_data['date'],
            t = Question(name=name, description=description, question_type=question_type, cant_resp=0)
            t.save()
            response.user.question.add(t)  # adds the to do list to the current logged in user

            # return HttpResponseRedirect("/%i" %t.id)
            return redirect('anwserquestions:question-list')

    else:
        form = QuestionForm()

    return render(response, "anwserquestions/question_create.html", {"form":form})

    
class QuestionDetailView(LoginRequiredMixin, generic.DetailView):
    model = Question
    template_name = 'anwserquestions/question_detail.html'
    context_object_name = 'question'

    def get_queryset(self):
        return Question.objects.all()


class QuestionDeleteView(LoginRequiredMixin, generic.DeleteView):
    template_name = 'anwserquestions/question_delete.html'
    context_object_name = 'question'
    success_url = reverse_lazy('anwserquestions:question-delete')

    # def get_queryset(self):

    #     return Question.objects.all()

Answer 1

您可以通过将其包含在视图上下文中来获取相关的answers，因此您的QuestionDetailView 变为

class QuestionDetailView(LoginRequiredMixin, generic.DetailView):
    model = Question
    template_name = 'anwserquestions/question_detail.html'
    context_object_name = 'question'

    def get_context_data(self, **kwargs):
        context = super(QuestionDetailView, self).get_context_data(**kwargs)
        context['answers'] = Answer.objects.filter(post=self.get_object())
        return context