Question

在models.py中，我有以下模型：

class Project(models.Model):
    project_name = models.CharField(max_length=255, unique=True, blank=False)
    def __str__(self):
        return str(self.project_name)


class Profile(models.Model):
    user = models.OneToOneField(User, on_delete=models.CASCADE)
    role = models.CharField(choices=ROLE_CHOICES, max_length=255, default='Agent')
    town = models.CharField(max_length=100)
    project = models.ManyToManyField(Project)
    def __str__(self):
        return str('Advanced user informations')

class News(models.Model):
    title = models.CharField(max_length=255, blank=False)
    content = HTMLField()
    author = models.ForeignKey(User, on_delete=models.CASCADE)
    project = models.ForeignKey(Project, on_delete=models.CASCADE)

在我的views.py中，我有：

def news(request):
    news_list = News.objects.all().order_by('-id')
    paginator = Paginator(news_list, 5) 
    page = request.GET.get('page')
    news = paginator.get_page(page)
    return render(request, 'news.html', {'news': news})

现在我想实现用户只能看到他参与的项目的新闻。

类似的东西：

News.objects.filter(News with a project that the User is linked to)

但我不确定什么是解决这个问题的有效方法。也许有人有小费？

Answer 1

这应该这样做：

News.objects.filter(project__profile_set__user=request.user)

Answer 2

这个怎么样，

News.objects.filter(project__in=request.user.profile.project.all())

Django从另一个模型过滤

2 个答案: