Showing data related to a logged in user in Django - django

Question

I am building this simple system for a school, where students can log in to see their results at the end of every semester. I designed a model for exams with a manytomany relationship to a user. My problems is in my template am finding it hard to show a exams results related to a logged in user.
models.py
class StudentProfile(models.Model):
SEX_CHOICES = (
('Male', 'Male'),
('Female', 'Female')
)
user = models.OneToOneField(User, on_delete=models.CASCADE)
other_name = models.CharField(max_length=30, null=True, blank=True)
birth_of_date = models.DateField(null=True, blank=True)
birth_Of_admission = models.DateField(null=True, blank=True)
nationality = models.CharField(max_length=120)
phone_number = models.CharField(max_length=15, validators=[MinLengthValidator(10)])
gender = models.CharField(max_length=120, choices=SEX_CHOICES)
home_address = models.CharField(max_length=250, null=True, blank=True, )
passport_picture = models.ImageField(upload_to='passport_picture', null=True, blank=True,
help_text='Upload the passport picture here')
def __str__(self):
return "%s %s" % (self.user.first_name, self.user.last_name)
#receiver(post_save, sender=User)
def create_or_update_user_profile(sender, instance, created, **kwargs):
if created:
StudentProfile.objects.create(user=instance)
instance.studentprofile.save()
class Subject(models.Model):
subject_name = models.CharField(max_length=30, null=True, blank=True)
def __str__(self):
return self.subject_name
class Year(models.Model):
year = models.CharField(max_length=30, null=True, blank=True)
def __str__(self):
return self.year
class Exam(models.Model):
TERM_CHOICES = (
('First Term', 'First Term'),
('Second Term', 'Second Term'),
('Third Term', 'Third Term')
)
level = models.ForeignKey('Level', null=True, blank=True, on_delete=models.CASCADE)
student = models.ForeignKey(Year, null=True, blank=True, on_delete=models.CASCADE)
year = models.ForeignKey(Year, null=True, blank=True, on_delete=models.CASCADE)
subject = models.ForeignKey(Subject, null=True, blank=True, on_delete=models.CASCADE)
term = models.CharField(max_length=120, default="", choices=TERM_CHOICES)
mid_term_score = models.PositiveSmallIntegerField(help_text='the marks scored for mid term exams')
End_of_term_score = models.PositiveSmallIntegerField(help_text='the marks scored for end of term exams')
class_work_score = models.PositiveSmallIntegerField(help_text='the marks scored for class work')
def __str__(self):
return self.subject + "-" + self.term
views.py
class StudentView(LoginRequiredMixin, ListView):
model = Exam
template_name = 'student.html'
context_object_name = 'student'
def get_object(self):
return self.request.user.exam
What I am trying to do is to show logged in student only his results based on the exams he has taken and but is rather showing me all. Even those he has not taken.

Answer 1

you can retrive those exams by set_all look_up_relationship or manually can query on Exam model.
possible way can be like this
def get_object(self):
return self.request.user.exam_set.all()
Also you can try this
def get_object(self):
return Exam.objects.filter(student_id=self.request.user.id)
Edit
If i understand you properly now, then student's current level is an important factor of this Exam filtering. We should add that too than, otherwise all exam will appear. But from your Exam model structure, i haven't see any level entity associated with User model present. I am assuming term and level actually same thing ( most likely which are not )
def get_object(self):
return Exam.objects.filter(student_id=self.request.user.id, term = self.request.user.level )