Django admin query sum quantity for each type for each request.user - django

Question

the issue is that i have 3 users levels
1-superuser
2-jihawi
3-mahali,
I would like to separate the veiw from the "Quantite" function by request.user
models.py
class typestock(models.Model):
Type = models.CharField(max_length=50, blank=True, null=True)
def __str__(self):
return self.Type
class stock(models.Model):
Jihawi = models.ForeignKey(User, on_delete=models.CASCADE, related_name="stockjihawi", editable=True, blank=True, null=True)
Mahali = models.ForeignKey(User, on_delete=models.CASCADE, related_name="stockmahali", editable=True, blank=True, null=True)
Date = models.DateField(blank=True, null=True)
TypeStock = models.ForeignKey(typestock, on_delete=models.CASCADE, editable=True, blank=True, null=True)
Quantite = models.IntegerField()
def save(self, *args, **kwargs):
super(stock, self).save(*args, **kwargs)
return self.TypeStock
admin.py
class TypeStockAdmin(nested_admin.NestedModelAdmin, ImportExportModelAdmin):
inlines = [InlineStock]
list_display = ('Type', 'Quantite')
list_display_links = ('Type',)
list_filter = ('Type',)
search_fields = ('Type',)
def Quantite(self, obj):
result = stock.objects.filter(TypeStock_id=obj).aggregate(Sum("Quantite"))
return result["Quantite__sum"]
Quantite.short_description = "Quantité"
how to add this code in the Quantite function:
if request.user.is_superuser:
stock.objects.filter(StockType_id=obj).aggregate(Sum("Quantity"))
###must view all quantity from stock models###
elif request.user.is_jihawi:
stock.objects.filter(TypeStock_id=obj).aggregate(Sum("Quantity"))
###how to add filter Jihawi=request.user (Jihawi from stock models)###
elif request.user.is_mahali:
stock.objects.filter(StockType_id=obj).aggregate(Sum("Quantity"))
###how to add filter Mahali=request.user (Mahali from stock models)###