from django.db.models import Q
import operator
qs = SomeModel.objects.all()
# use reduce
rules = []
for rule_key, rule_value in calculated_rules:
rules.append(Q(rule_key=rule_value))
if rules:
qs = qs.filter(reduce(operator.or_, rules))
# not use it
q_collect = None
for rule_key, rule_value in calculated_rules:
new_q = Q(rule_key=rule_value)
if q_collect is None:
q_collect = new_q
else:
q_collect = q_collect | new_q
if rules:
qs = qs.filter(q_collect)
вторник, 6 апреля 2010 г., 9:10:08 UTC+4 пользователь Daniel написал:
>
> Hi, I think that this must be super easy, but I'm kind of stumped.
>
> I have a list qObjects = [qObject1, qObject2, qObject3]
> What I'd like is to form this query: Sample.objects.filter(qObject1,
> qObject2, qObject3)
>
> How would I accomplish what I need? Thanks!
>
>
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