Question

我创建了带有类别，子类别和子子类别的模型。我有很多问题使其无法正常工作。我的models.py：

class School(models.Model):
    school_name = models.CharField(max_length = 100)
    slug = AutoSlugField(populate_from = 'school_name', unique = True)
...      
class Department(models.Model):
    department_name = models.CharField(max_length = 100)
    slug = AutoSlugField(populate_from = 'department_name', unique = True)
    school = models.ForeignKey(School, on_delete = models.CASCADE)
...
class Professor(models.Model):
    Professor_name = models.CharField(max_length = 100)
    slug = models.SlugField()
    department = models.ForeignKey(Department, on_delete = models.CASCADE)
...

我的views.py：

def department_list(request, category_slug):
    category = get_object_or_404(School, slug = category_slug)
    schools = School.objects.filter(school_name = category)
    departments = Department.objects.filter(school = category)
    context = {'schools':schools, 'departments': departments}
    return render(request, 'main/department_list.html', context)    

def professor_list(request, category_slug, department_slug):
    category = get_object_or_404(School, slug = category_slug)
    subcategory = get_object_or_404(Department, slug = department_slug)
    schools = School.objects.filter(school_name = category)
    departments = Department.objects.filter(school = category)
    Professors = Professor.objects.filter(department = subcategory)
    context = {'Professors ': Professors}
    return render(request, 'main/Professor_list.html', context)

class DepartmentCreateView(CreateView):
    model = Department
    fields = ['department_name']

    def get_context_data(self, **kwargs):
        school = get_object_or_404(School, pk=self.kwargs['school_id'])
        kwargs['school'] = school
        return super().get_context_data(**kwargs)

    def form_valid(self, form):
        school = get_object_or_404(School, pk=self.kwargs['school_id'])
        form.instance.school = school
        return super().form_valid(form)

我的urls.py

urlpatterns = [
    path('<category_slug>/', views.department_list, name = 'departments'),
    path('<category_slug>/<department_slug>/', views.professor_list, name = 
         'Professors'),
    path('<category_slug>/new/', DepartmentCreateView.as_view(), name = 
         'department-create'),
]

我的department_list视图有效，但是Professor_list和DepartmentCreateView似乎永远失败。我尝试到处寻找，但似乎无法弄清原因。有人可以给我建议吗？预先谢谢你！

Django：为类别/外键中的对象设置视图，URL和模板

0 个答案: