filter by queryset django code example

Example 1: and in django query filter

Blog.objects.filter(entry__headline__contains='Lennon', entry__pub_date__year=2008)

Example 2: django order by

class Meta:
        ordering = ('date',)

Example 3: django queryset exists

if some_queryset.exists():
    print("There is at least one object in some_queryset")

Example 4: django filter values with OR operator

Blog.objects.filter(pk__in=[1, 4, 7])