Re: How to concatenate a list of Q objects?

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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