我试图计算模型对象但它不工作

Question

我正在尝试使用 Django 计算模型对象，但它不起作用，它不显示任何内容，这是 HTML 代码，我尝试了 .all.count 和 .count 但两者都没有显示任何内容

<div class="card">
        <div> <h3>Followers: {{profiles.follower.all.count}}</h3> </div>
        <div> <h3>Followings: {{profiles.following.count}}</h3> </div>
</div>

这就是python配置文件功能代码

def profile(request, username):
    user = get_object_or_404(User, username=username)
    user_posts= post.objects.filter(user=user)
    profiles = Userprofile.objects.filter(user=user)
    context = {
        'user_posts':user_posts,
        'profiles': profiles
    }
    return render(request, "network/profile.html", context)

**我的模型**

class User(AbstractUser):
    pass

class post(models.Model):
    user = models.ForeignKey('User', on_delete=models.CASCADE, related_name='maker')
    text = models.CharField(max_length=255)
    date = models.DateTimeField(default=datetime.now())
    likes = models.ManyToManyField('User', blank=True)

class Userprofile(models.Model):
    user = models.ForeignKey('User', on_delete=models.CASCADE, related_name='profile')
    follower = models.ManyToManyField('User', blank=True, related_name='follower')
    following = models.ManyToManyField('User', blank=True, related_name='following')

Answer 1

在你的views.py中添加.first()：

def profile(request, username):
    ....
    user_posts= post.objects.filter(user=user).first()
    profiles = Userprofile.objects.filter(user=user).first()
    ......