django - 我们如何从单个 django orm 查询中获取多个值？

Question

class Test(ModelBase):
     team = models.IntegerField(null=True)



id    created_at                           team
 1     2018-02-14 10:33:46.307214+05:30    1
 2     2018-02-24 10:41:40.307681+05:30    1
 3     2018-03-14 12:00:02.748088+05:30    1
 4     2018-03-12 18:05:33.598297+05:30    3
 5     2018-03-12 18:04:00.694774+05:30    3
 6     2018-04-14 11:24:48.554993+05:30    3
 7     2018-04-14 11:42:27.442441+05:30    3
 8     2018-05-11 15:53:21.528813+05:30    3
 9     2018-05-08 15:49:58.684201+05:30    3

我们如何从单个查询中获得当月 & team = 3 计数，上个月 & team = 3 计数？

Answer 1

您可以使用 Q object允许使用 OR 条件执行查询:

current_month = datetime.datetime.now().month
first_day_of_current_month = datetime.datetime.now().replace(day=1)
last_month = (first_day_of_current_month - datetime.timedelta(days=1)).month

Test.objects.filter(Q(created_at__month=current_month, team=3)|Q(created_at__month=last_month, team=3))