django обновление моделей из views.py

Question

How can I update the models from this updateprofile function in views.py

views.py

def updateProfile(request):
    name = request.POST['name']
    email = request.POST['email']
    standard = request.POST['standard']
    phone = request.POST['phone']
    obj, created = Student.objects.update_or_create(name=User.username,
    defaults={'email': email, 'standard':standard, 'phone':phone},
)
    if created:
        messages.info(request, 'Your details are Created!', extra_tags='Congratulations!')
    else:
        messages.info(request, 'Your details are updated!', extra_tags='Congratulations!')
    return redirect('/profile')

models.py

class Student(models.Model):
    name = models.CharField(max_length=45, null=False, unique=True)
    standard = models.IntegerField(null=True)
    phone = models.IntegerField(null=True)
    address = models.CharField(max_length=100, null=True)
    email = models.EmailField(unique=True)
    password = models.CharField(max_length=20, null=True)
    def __str__(self):
        return f"{self.name} class={self.standard} rollno={self.id}"

Я получаю 500 ошибок каждый раз, когда пытаюсь обновить модель студента .... Пожалуйста, помогите я в этой проблеме