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# 优化统计接口性能

This commit is contained in:
xianfuxing 2020-08-11 16:20:17 +08:00
parent f8945b4d78
commit 791a753162
1 changed files with 16 additions and 0 deletions
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16
apps/counter/api/views.py
View File

@ -97,6 +97,17 @@ class LatestStatisticAPIView(APIView, RoleMixin):
permission_classes = [IsAuthenticated]
def get(self, request, *args, **kwargs):
username = request.user.username
cur_month_count_key = 'cur_month_count_{}'.format(username)
daily_count_key = 'daily_count_{}'.format(username)
cur_month_count = cache.get(cur_month_count_key)
daily_count = cache.get(daily_count_key)
if cur_month_count and daily_count:
data = {'cur_month_count': cur_month_count, 'daily_count': daily_count}
return Response(data)
# no cache
devices = self.get_devices()
total_count_queryset = [DeviceCount.objects.filter(device_id=x['device_id'],
data_time=x['max_time']).order_by('-count')[0]
@ -122,6 +133,8 @@ class LatestStatisticAPIView(APIView, RoleMixin):
else:
cur_month_count = total_count
# set month cache
cache.set(cur_month_count_key, cur_month_count, 60 * 10)
midnight = tz.localize(datetime.combine(today, time(0, 0)), is_dst=None)
one_day_ago_queryset = [DeviceCount.objects.filter(device_id=x['device_id'], data_time=x['max_time']).order_by('-count')[0]
for x in DeviceCount.objects.filter(
@ -132,6 +145,9 @@ class LatestStatisticAPIView(APIView, RoleMixin):
else:
daily_count = 0
# set daily cache
cache.set(daily_count_key, daily_count, 60 * 10)
data = {'cur_month_count': cur_month_count, 'daily_count': daily_count}
return Response(data)