1👍
Probably you can use Coalesce
for this, for example:
from django.db.models import Value as V
from django.db.models.functions import Coalesce
def get_queryset(self):
date = datetime.date.today()
current_year = date.today().year
queryset = Subscription.objects.filter(created__year=current_year)\
.exclude(user__is_staff=True).values(
month=TruncMonth('created')
).annotate(
total_members=Coalesec(Count('created'), V(0))
).order_by('month')
return queryset
Source:stackexchange.com