If would like to access CustomUser's attributes directly from an student
instance you should use Multi-table Inheritance
<https://docs.djangoproject.com/en/2.2/topics/db/models/#multi-table-inheritance>
- a concrete model class that inherits from another, so `class
Student(CustomUser)`. But if you want to keep the relationship using
explict OneToOne like you did, maybe it's better to query on CustomUser
instead of Student model, like this:
```
user = CustomUser.objects.filter(
Q(identity_no=identity_no) |
Q(student__student_no=student_no)
).distinct()
```
It will bring CustomUser objects (wich have the `check_password` method)
instead of Student objects
Em segunda-feira, 8 de julho de 2019 01:21:39 UTC-3, laya escreveu:
>
> Yes Check_password attribute is in Django user model and when I write
> Customuser. Objects.filter() it errors that Student_no is not an attribute
> for User Django Model.
>
>
>
> Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for
> Windows 10
>
>
>
> *From: *Aldian Fazrihady <javascript:>
> *Sent: *Sunday, July 7, 2019 9:18 PM
> *To: *[email protected] <javascript:>
> *Subject: *Re: having problem in login rest API
>
>
>
> It is in user object instead of student object, right?
>
> Regards,
>
> Aldian Fazrihady
> http://aldianfazrihady.com
>
>
>
> On Mon, 8 Jul 2019, 11:12 laya, <[email protected] <javascript:>> wrote:
>
> Hi,
>
> Please help me in this part, I stuck in some days,
>
> My project is about a university system which professors and students can
> sign up and login. I use Custom User Django which inherits User Django
> Model. It should be mentioned that login is by identity number and
> Student-no and Professor-no.
>
> My codes are as follow:
>
> Models.py:
>
> class CustomUser(AbstractUser):
> USER_TYPE_CHOICES = ((1, 'student'),
> (2, 'professor'),)
> username = models.CharField(max_length=50, unique=True)
> user_type = models.PositiveSmallIntegerField(choices=USER_TYPE_CHOICES,
> null=True)
> first_name = models.CharField(max_length=50)
> last_name = models.CharField(max_length=100)
> identity_no = models.PositiveIntegerField(default=0)
> email = models.EmailField(max_length=300,
> validators=[RegexValidator
>
> (regex="^[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\.["r"a-zA-Z0-9-.]+$",
> message='please enter the correct
> format')],
> )
> date_joined = models.DateTimeField('date joined', default=timezone.now)
> is_active = models.BooleanField(default=True)
> is_admin = models.BooleanField(default=False)
> is_staff = models.BooleanField(default=False)
>
>
> class Student(models.Model):
> user = models.OneToOneField(CustomUser, on_delete=models.CASCADE)
> entry_year = models.PositiveIntegerField()
> student_no = models.PositiveIntegerField()
>
> def get_full_name(self):
> return self.user.first_name +" "+ self.user.last_name
>
> def __unicode__(self):
> return self.user.first_name +" "+ self.user.last_name
>
> def __str__(self):
> return self.user.first_name +" "+ self.user.last_name
>
>
>
> serializers.py:
>
>
>
> """STUDENT LOGIN"""
> class StudentLoginSerializer(serializers.ModelSerializer):
> user = CustomUserSerializerForLogin()
>
> class Meta:
> model = Student
> fields = [
> "user",
> "student_no", ]
>
> def validate(self, data): # validated_data
> user_data = data.pop('user', None)
> identity_no = user_data.get('identity_no')
> print("identity_no", identity_no)
> student_no = data.get("student_no")
> user = Student.objects.filter(
> Q(user__identity_no=identity_no) |
> Q(student_no=student_no)
> ).distinct()
> # user =
> user.exclude(user__identity_no__isnull=True).exclude(user__identity_no__iexact='')
> if user.exists() and user.count() == 1:
> user_obj = user.first()
> else:
> raise ValidationError("This username or student_no is not
> existed")
> if user_obj:
> if not user_obj.check_password(student_no): # Return a boolean
> of whether the raw_password was correct.
> raise ValidationError("Incorrect Credential please try again")
> return user_obj
>
> Views.py:
>
>
> class StudentLoginView(APIView):
> queryset = Student.objects.all()
> serializer_class = StudentLoginSerializer
> def post(self, request, *args, **kwargs):
> data = request.data
> serializer = StudentLoginSerializer(data=data)
> if serializer.is_valid(raise_exception=True):
> new_data = serializer.data
> return Response(new_data, status= HTTP_200_OK)
> return Response(serializer.errors, status=HTTP_400_BAD_REQUEST)
>
> Error:
>
> The error is about check_password attribute which is not existing in
> Student Object.
>
>
>
>
>
> Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for
> Windows 10
>
>
>
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