python - Django - 验证错误 "value must be an integer"

Question

我从旧项目(Django 1.7)中回收了一些代码在新的(Django 1.8)中使用它，所以每次我想登录时都会收到此错误

它在 Django 1.7 中运行良好

对于我的模型，我使用 AbstractBaseUser

models.py

class Student(AbstractBaseUser, models.Model):
    email = models.EmailField(max_length=50)
    user_id = models.CharField(max_length=8, null=False, editable=False, default=id_generator, primary_key=True)
    first_name = models.CharField(max_length=20)
    last_name = models.CharField(max_length=20)
    prom_code = models.CharField(max_length=8, null=False, default="")
    gender = (("M","Male"),("F","Female"),)
    gender = models.CharField(max_length=1, choices=gender, default="M", null=False)
    USERNAME_FIELD = 'email'

    @property
    def is_superuser(self):
        return False

    def has_perm(self, perm, obj=None):
        return False

    def has_module_perms(self, app_label):
        return False

    @property
    def is_staff(self):
        return False

    def save(self, **kwargs):
        if not self.user_id:
            self.user_id = id_generator()
            while Student.objects.filter(user_id = self.user_id).exists():
                self.user_id = id_generator()

        super(Student, self).save() 

我进行了自定义身份验证

auth_backend.py

from registration_app.models import Student
import md5    


class ClientAuthBackend(object):

    def authenticate(self, username=None, password=None):
        try:
            user = Student.objects.get(email=username)
            password_ver = md5.new(password).hexdigest()        
            if user.check_password(password_ver):
                return user
            else:
                print("Entre aqui")
                return None
        except Student.DoesNotExist:
            print("Entre aqui2")
            return None

    def get_user(self, user_id):
        try:
            user = Student.objects.get(user_id=user_id)
            if user is not None:
                return user
        except Student.DoesNotExist:
            return None

views.py

def user_login(request):
    args = {}
    form = LoginForm(request.POST)
    username = request.POST.get('email', '')
    password = request.POST.get('password', '')
    user = authenticate(username=username, password=password)

    if user is not None:
        print user.first_name + " ah iniciado session"
        login(request, user) #-----**Here is where i get the problem**-----
        return HttpResponseRedirect('/user/')
    else:
        print("El usuario no existe")

    args['form'] = form
    return render(request, 'user_student/login.html', args)

在我的命令提示符中，我实际上可以看到用户正在登录(它给我带来了用户的名称)

Answer 1

根据 Django 文档:

The Django admin is tightly coupled to the Django User object. The best way to deal with this is to create a Django User object for each user that exists for your backend (e.g., in your LDAP directory, your external SQL database, etc.) You can either write a script to do this in advance, or your authenticate method can do it the first time a user logs in.

https://docs.djangoproject.com/en/1.11/topics/auth/customizing/

发生的情况是您为用户设置了非数字 PK，而 Django 不喜欢这样。我也遇到了同样的问题。

如文档中所述，您应该为每个身份验证创建一个User(如果尚不存在)，并更改 ClientAuthBackend 中的 get_user 方法返回:

def get_user(self, user_id):
    try:
        return User.objects.get(pk=user_id)
    except User.DoesNotExist:
        return None

更改后，一切顺利。