Django - Select only specific rows from a query - django

Question

I've started to learn django and as my first project I am trying to create a catalog.
I created 3 tables
Students
Catalog
Link table between those 2
This is how my models.py looks like:
class Catalog(models.Model):
Class = models.CharField(max_length =30)
def __str__(self):
return str(self.Class)
class StudentiAn4(models.Model):
Username = models.ForeignKey(User)
FirstName = models.CharField(max_length=50)
LastName = models.CharField(max_length=50)
Group = models.CharField(max_length=4)
def __str__(self):
return str(self.Username) + ' ' + self.FirstName +' ' + self.LastName
class CatalogStudenti(models.Model):
catalog = models.ForeignKey(Catalog)
student = models.ForeignKey(StudentiAn4)
grade = models.IntegerField()
def __str__(self):
return str(self.catalog) +' ' + str(self.student)
In views :
def studenti(request):
query = CatalogStudenti.objects.all()
return render(request, 'users/Studenti.html',{'query': query})
As a logged in user(Username: 123, FirstName: test1, LastName: test1_LN), I would like to see only grades assigned to me, not all grades.
Can you please tell me how can I filter the output so that I see only the grades assigned to me?
Current output:
123 test1 test1_LN - SEP 5
234 test2 test2_LN - ASC 4
123 test1 test1_LN - AACEP 6
Desired Output:
123 test1 test1_LN - SEP 5
123 test1 test1_LN - AACEP 6

Answer 1

Change the queryset in the view funtion to filter by the user field from student:
query = CatalogStudenti.objects.filter('student__Username'=request.user)