summation django queryset
from django.db.models import Sum
ItemPrice.objects.aggregate(Sum('price'))
# returns {'price__sum': 1000} for examplesummation django queryset
from django.db.models import Sum
ItemPrice.objects.aggregate(Sum('price'))
# returns {'price__sum': 1000} for exampledjango 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}]Copyright © 2021 Codeinu
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