109 lines
4.9 KiB
Python
109 lines
4.9 KiB
Python
# Create your tasks here
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from __future__ import absolute_import, unicode_literals
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from apps.utils.tasks import CustomTask
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from celery import shared_task
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from apps.utils.sql import DbConnection
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from server.settings import get_sysconfig
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from django.core.cache import cache
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from apps.enm.models import MpLog, Mpoint, MpointStat
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import datetime
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from django.db.models import Sum
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def get_current_and_previous_time():
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now = datetime.datetime.now()
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pre = now - datetime.timedelta(hours=1)
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return now, pre
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def get_current_and_previous_hour():
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now = datetime.datetime.now()
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current_hour = now.hour
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current_date = now.date()
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current_start_time = datetime.datetime.combine(current_date, datetime.time(current_hour, 0, 0))
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current_end_time = datetime.datetime.combine(current_date, datetime.time(current_hour, 59, 59))
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current_time_range = (current_start_time, current_end_time)
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previous_hour = current_hour - 1 if current_hour > 0 else 23
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previous_date = current_date if previous_hour < current_hour else current_date - datetime.timedelta(days=1)
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previous_start_time = datetime.datetime.combine(previous_date, datetime.time(previous_hour, 0, 0))
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previous_end_time = datetime.datetime.combine(previous_date, datetime.time(previous_hour, 59, 59))
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previous_time_range = (previous_start_time, previous_end_time)
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return current_time_range, previous_time_range
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@shared_task(base=CustomTask)
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def get_tag_val():
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config = get_sysconfig()
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with DbConnection(config['enm']['db_host'], config['enm']['db_user'], config['enm']['db_password'], config['enm']['db_database']) as cursor:
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last_tag_id = cache.get('last_tag_id')
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if last_tag_id is None:
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mr = MpLog.objects.all().order_by('-tag_update', 'tag_id').first()
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if mr is None:
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last_tag_id = 0
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else:
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last_tag_id = mr.tag_id
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cache.set('last_tag_id', last_tag_id)
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cursor.execute("select id, val, tag_code, update_time from tag_value where id > %s order by id", (last_tag_id))
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results = cursor.fetchall() # 获取数据后保存至本地
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for row in results:
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mr_one = MpLog()
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mr_one.tag_id, mr_one.tag_val, mr_one.tag_code, mr_one.tag_update = row
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mr_one.mpoint, _ = Mpoint.objects.get_or_create(code=mr_one.tag_code, defaults={'name': mr_one.tag_code, 'code': mr_one.tag_code, 'unit': 'unknown'})
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mr_one.save()
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@shared_task(base=CustomTask)
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def cal_mpointstat_hour(mpointId: str, year: int, month: int, day: int, hour: int):
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"""
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计算某一测点, 某一时间点某一小时的统计值
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"""
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mpoint = Mpoint.objects.get(id=mpointId)
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if mpoint.cate == 'elec': # 是否是电能
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params = {'mpoint': mpoint, 'type': 'hour'}
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params['year'], params['month'], params['day'], params['hour'] = year, month, day, hour
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mrs = MpLog.objects.filter(
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mpoint=mpoint,
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tag_update__year=params['year'],
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tag_update__month=params['month'],
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tag_update__day=params['day'],
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tag_update__hour= params['hour']).order_by('tag_update')
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val = 0
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if mrs.exists():
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val = mrs.last() - mrs.first()
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ms, _ = MpointStat.objects.get_or_create(**params, defaults=params)
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ms.val = val
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ms.save()
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# 更新更高级别的值
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sum_dict_day = MpointStat.objects.filter(type='hour', mpoint=mpoint, year=year, month=month, day=day).aggregate(sum=Sum('val'))
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params_day = {'type':'day', 'mpoint': mpoint, 'year': year, 'month': month, 'day': day}
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ms_day, _ = MpointStat.objects.get_or_create(**params_day, defaults=params_day)
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ms_day.val = sum_dict_day['sum']
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ms_day.save()
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sum_dict_month = MpointStat.objects.filter(type='hour', mpoint=mpoint, year=year, month=month).aggregate(sum=Sum('val'))
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params_month = {'type':'month', 'mpoint': mpoint, 'year': year, 'month': month}
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ms_month, _ = MpointStat.objects.get_or_create(**params_month, defaults=params_month)
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ms_month.val = sum_dict_month['sum']
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ms_month.save()
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sum_dict_year = MpointStat.objects.filter(type='hour', mpoint=mpoint, year=year).aggregate(sum=Sum('val'))
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params_year = {'type':'year', 'mpoint': mpoint, 'year': year}
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ms_year, _ = MpointStat.objects.get_or_create(**params_year, defaults=params_year)
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ms_year.val = sum_dict_year['sum']
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ms_year.save()
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@shared_task(base=CustomTask)
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def cal_mpointstats(is_now=1):
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"""
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计算所有测点的统计值，默认当前小时
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"""
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now, pre = get_current_and_previous_time()
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if is_now:
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for mpoint in Mpoint.objects.all():
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cal_mpointstat_hour.delay(mpoint.id, now.year, now.moth, now.day, now.hour)
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else:
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for mpoint in Mpoint.objects.all():
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cal_mpointstat_hour.delay(mpoint.id, pre.year, pre.month, pre.day, pre.hour)
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