pass in queryset as filter django
users = UserClasses.objects.filter(class_id=data['class_id'])
user_details = User.objects.filter(id__in=users.values_list('id', flat=True))pass in queryset as filter django
users = UserClasses.objects.filter(class_id=data['class_id'])
user_details = User.objects.filter(id__in=users.values_list('id', flat=True))django queryset exists
if some_queryset.exists():
print("There is at least one object in some_queryset")django queryset count
# Returns the total number of entries in the database.
count = Entry.objects.count()
# Returns the number of entries whose headline contains 'Lennon'
count = Entry.objects.filter(headline__contains='Lennon').count()get queryset
from myapp.models import Purchase
from myapp.serializers import PurchaseSerializer
from rest_framework import generics
class PurchaseList(generics.ListAPIView):
serializer_class = PurchaseSerializer
def get_queryset(self):
"""
This view should return a list of all the purchases
for the currently authenticated user.
"""
user = self.request.user
return Purchase.objects.filter(purchaser=user)Copyright © 2021 Codeinu
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