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  • 【Django】如何按天 小时等查询统计?

    代码:

    from django.db import connection
            from django.db.models import Sum,Count
            #alarm_sum_group_items = models.FILE_PROTECT_ALARM.objects.filter(**condition).values('customer_id').annotate(alarm_sum=Sum('cmn_merge_count'))
            select = {'day': connection.ops.date_trunc_sql('day', 'cmn_alert_time')}
            alarm_sum_group_items = models.FILE_PROTECT_ALARM.objects.filter(**condition).extra(select=select).values('day').annotate(sum=Sum('cmn_merge_count'))
            #serializer = serializers.FILE_PROTECT_ALARM_Serializer(file_protect_alarm_list, many=True)
            #data = {}
            #data['items'] = serializer.data
            '''for item in data['items']:
                item['svc_profile_list'] = json.loads(item['svc_profile_list'])
                #item['info'] = json.loads(item['info'])'''
            #data['total'] = total
            for item in alarm_sum_group_items:
                item['day'] = time.mktime(item['day'].timetuple())
            return APIResponse(status=status_code.success, data=alarm_sum_group_items)

    推荐:

    http://www.360doc.com/content/14/0430/17/16044571_373542312.shtml

    http://stackoverflow.com/questions/8746014/django-group-by-date-day-month-year

    http://stackoverflow.com/questions/3543379/django-annotate-groupings-by-month

    参考资料:

    http://www.360doc.com/content/14/0430/17/16044571_373542312.shtml

    http://blog.csdn.net/shanliangliuxing/article/details/7927899

    http://www.thinksaas.cn/ask/question/23626/

    https://segmentfault.com/q/1010000003499386

    http://blog.csdn.net/pipisorry/article/details/47396311

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  • 原文地址:https://www.cnblogs.com/junneyang/p/5965058.html
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