django group by
# If you mean to do aggregation you can use the aggregation features of the ORM:
from django.db.models import Count
Members.objects.values('designation').annotate(dcount=Count('designation'))
# This results in a query similar to:
SELECT designation, COUNT(designation) AS dcount
FROM members GROUP BY designation
#and the output would be of the form
[{'designation': 'Salesman', 'dcount': 2},
{'designation': 'Manager', 'dcount': 2}]sum values in django models and insert value in model field
# models.py
def total_amount_spent(self):
temp_values = [int(user.amount_spent) for user in ExtendedProfile.objects.all()]
return sum(temp_values)Copyright © 2021 Codeinu
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