Django：精确查找的 QuerySet 值必须使用切片限制为一个结果

我正在开发一个项目，管理员可以将团队分配给经理。但它不起作用，我不知道它将如何工作。因为它会引发一个错误，指出“精确查找的 QuerySet 值必须使用切片限制为一个结果”。

这是我的 model.py

class manager(models.Model):
name = models.CharField(max_length= 500)
designation = models.CharField(max_length= 500)
user = models.ForeignKey(User,on_delete=models.CASCADE)
class Meta:
    permissions = [
        ("edit_task", "can edit the task"),
    ]

这是我的经理团队的views.py 文件

@login_required (login_url= 'have the url where it will go')
@permission_required('have the permission that is assigned by me')
def supervisor(request):
return render(request, 'manager/index-3.html')

def supervisor_team(request):
print(request.user.email)
email=request.user.email
obj= Create_Team.objects.filter(status='Accept', 
managers=manager.objects.filter(user__email=email))
return render(request, "manager/accept_team.html", {"object": obj})

这是我的模板

<div class="body table-responsive">
                        <table class="table table-hover">
                            <thead>
                                <tr>
                                    <th>S No.</th>
                                    <th>COMPANY NAME</th>
                                    <th>TEAM MEMBER</th>
                                    <th>EMAIL</th>
                                </tr>
                            </thead>
                            <tbody>

                                    {%for object in team%}
                                <tr>
                                        <form id="form_id" method="POST" action = "#">
                                            {% csrf_token %}

                                    <th scope="row"> {{ forloop.counter }}</th>
                                    <td>{{object.company_name}}</td>
                                    <td>{{object.team_member}}</td>
                                    <td>{{object.email}}</td>
                                    <td>
                                </tr>

                                {% endfor %}

                            </tbody>
                        </table>
                    </div>

I have no idea where i am wrong.

我认为这就是问题所在：

obj= Create_Team.objects.filter(status='Accept', 
managers=manager.objects.filter(user__email=email))

如果您想按一位经理进行过滤，则必须使用get代替filter:

obj= Create_Team.objects.filter(status='Accept', 
managers=manager.objects.get(user__email=email))

但如果您想按多个经理进行过滤，则需要使用__in:

obj= Create_Team.objects.filter(status='Accept', 
managers__in=manager.objects.filter(user__email=email))

还有你正在路过{"object": obj})到 template 但在 templare 中你试图迭代team。所以改一下就可以通过team多变的：

return render(request, "manager/accept_team.html", {"team": obj})