Django - DetailView和模板

Question

因此，我的问题是，我有一个详细的视图，它从我的数据库中显示一个特定的帖子。然后，我使用get_context_data从不同的模型获取db值；但是，它在我的模板中输出了一些奇怪的东西。

我可以在模板中更改什么，以便它列出其他模型中的每个正确的db值？

models.py

class Projects(models.Model):
    user = models.ForeignKey(User)
    slug = models.SlugField()
    project_title = models.CharField(max_length=30)
    project_shortdesc = models.CharField(max_length=248)
    project_desc = models.TextField()

    def save(self):
        super(Projects, self).save()
        date = datetime.date.today()
        self.slug = '%i%i%i%s' % (
                date.year, date.month, date.day, slugify(self.project_title)
            )
        super(Projects, self).save()


class ProjectsToDo(models.Model):
    project_tododate = models.DateField()
    project_tododesc = models.TextField(max_length = 500)
    project_id = models.ManyToManyField(Projects)

views.py

class ProjectDetail(generic.DetailView):
    model = Projects
    context_object_name = 'indprojects'
    template_name = 'projectpage.html'

    def get_context_data(self, *args, **kwargs):
        context = super(ProjectDetail, self).get_context_data(*args, **kwargs)
        context['todolist'] = ProjectsToDo.objects.order_by('project_tododate')
        context['todoform'] = ProjectToDoForm()
        context['form'] = ProjectForm(instance=Projects.objects.get(slug=self.kwargs['slug']))
        return context

    def get_queryset(self):
        return Projects.objects.filter(user=self.request.user)

    @method_decorator(login_required)
    def dispatch(self, request, *args, **kwargs):
        return super(ProjectDetail, self).dispatch(request, *args, **kwargs)

模板

 {{todolist}}

这是来自模板的输出：[<ProjectsToDo: ProjectsToDo object>, <ProjectsToDo: ProjectsToDo object>] --我尝试过{{todolist.project_tododesc}}，两者都没有输出任何数据。我不太清楚该如何解决这个问题，任何帮助都将不胜感激。

Answer 1

我认为问题在于，如果在类__str__()中使用Python3(或者Python2.x中的__unicode__() )，则没有定义ProjectsToDo方法。

当您试图打印一个模型实例时，所发生的是Django将查看__str__()来决定显示什么。

__str__()