Python 如何在基于类的视图中使用上下文对象进行查询？

我试图理解基于类的视图，并且在变量方面有困难

class TeacherView(generic.DetailView):
    model = Teacher
    context_object_name = 'the_object'

    template_name = urls['Teacher_detail'] # I declared an array and called urls to store template paths

我想使用模板中要使用的教师变量进行查询。 例如：

并将此Homeworks数组传递给我的模板并使用

至少有人能告诉我具体检查什么吗？我对诸如get\u object、get\u context\u object等函数感到迷茫

---

提前感谢

您可以在视图中定义函数：

class TeacherView(generic.DetailView):
    model = Teacher
    context_object_name = 'the_object'
    template_name = urls['Teacher_detail']

    def homeworks(self):
        return Homeworks.objects.filter(Teacher=self.object)

---

您可以在视图中定义函数：

class TeacherView(generic.DetailView):
    model = Teacher
    context_object_name = 'the_object'
    template_name = urls['Teacher_detail']

    def homeworks(self):
        return Homeworks.objects.filter(Teacher=self.object)

您可以通过覆盖上下文数据将作业查询集传递给视图，如下所示

class TeacherView(generic.DetailView):
    model = Teacher
    context_object_name = 'the_object'
    template_name = urls['Teacher_detail']

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context["homeworks"] = Homeworks.objects.filter(Teacher=self.object)
        return context

您可以通过覆盖上下文数据将作业查询集传递给视图，如下所示

class TeacherView(generic.DetailView):
    model = Teacher
    context_object_name = 'the_object'
    template_name = urls['Teacher_detail']

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context["homeworks"] = Homeworks.objects.filter(Teacher=self.object)
        return context

{% for homework in homeworks %}
    {{ homework }}
{% endfor %}