# 完善首页统计api

apps/counter/api/serializers.py

@@ -1,4 +1,5 @@
-from django.utils import timezone
+import pytz
+from datetime import datetime, time
 from django.db.models import Sum
 from rest_framework import serializers
 from counter.models import DeviceCount, DeviceInfo
@@ -68,40 +69,3 @@ class DeviceInfoSerializer(serializers.ModelSerializer):
         if obj.last_offline_time:
             return obj.last_offline_time.strftime('%Y-%m-%d %H:%M:%S')
         return None
-
-
-class DeviceLogStatisticSerializer(serializers.ModelSerializer):
-    total_count = serializers.SerializerMethodField()
-    daily_count = serializers.SerializerMethodField()
-
-    class Meta:
-        model = DeviceCount
-        fields = [
-            'total_count',
-            'daily_count',
-        ]
-
-    def get_total_count(self, obj):
-        return obj.objects.aggregate(total=Sum('count'))['total']
-
-    def get_daily_count(self, obj):
-        today = timezone.datetime.now().date()
-        return obj.objects.filter(data_time__gt=today).aggregate(total=Sum('count'))['total']
-
-
-class DeviceInfoStatisticSerializer(serializers.ModelSerializer):
-    online_count = serializers.SerializerMethodField()
-    offline_count = serializers.SerializerMethodField()
-
-    class Meta:
-        model = DeviceInfo
-        fields = [
-            'online_count',
-            'offline_count'
-        ]
-
-    def get_online_count(self, obj):
-        return obj.objects.filter(online=1).count()['total']
-
-    def get_offline_count(self, obj):
-        return obj.objects.filter(online=0).count()['total']

apps/counter/api/urls.py

@@ -3,6 +3,7 @@ from .views import (
     DeviceLogListAPIView,
     DeviceInfoListAPIView,
     DeviceLogStatisticAPIView,
+    DeviceInfoStatisticAPIView
 )
 
 
@@ -11,4 +12,5 @@ urlpatterns = [
     path('logs/', DeviceLogListAPIView.as_view(), name='logs'),
     path('device/', DeviceInfoListAPIView.as_view(), name='device'),
     path('logs/statistic', DeviceLogStatisticAPIView.as_view(), name='logs-statistic'),
+    path('device/statistic', DeviceInfoStatisticAPIView.as_view(), name='device-statistic'),
 ]

apps/counter/api/views.py

@@ -1,3 +1,6 @@
+import pytz
+from datetime import datetime, time
+from django.db.models import Sum
 from rest_framework.generics import (
     ListAPIView,
     RetrieveAPIView,
@@ -12,8 +15,6 @@ from mosquito.api.pagination import PostLimitOffsetPagination, PostPageNumberPag
 from .serializers import (
     DeviceCountSerializer,
     DeviceInfoSerializer,
-    DeviceLogStatisticSerializer,
-    DeviceInfoStatisticSerializer
 )
 from ..models import DeviceCount, DeviceInfo
 
@@ -37,9 +38,24 @@ class DeviceInfoListAPIView(ListAPIView):
 
 
 class DeviceLogStatisticAPIView(APIView):
-    serializer_class = DeviceLogStatisticSerializer
     permission_classes = [IsAuthenticated]
 
     def get(self, request, *args, **kwargs):
-        serializer = self.serializer_class(DeviceCount)
+        tz = pytz.timezone("UTC")
-        return Response(serializer.data)
+        today = datetime.now(tz).date()
+        midnight = tz.localize(datetime.combine(today, time(0, 0)), is_dst=None)
+        total_count = DeviceCount.objects.aggregate(total=Sum('count'))['total']
+        daily_count = DeviceCount.objects.filter(
+            data_time__gt=midnight).aggregate(total=Sum('count'))['total']
+        data = {'total_count': total_count, 'daily_count': daily_count}
+        return Response(data)
+
+
+class DeviceInfoStatisticAPIView(APIView):
+    permission_classes = [IsAuthenticated]
+
+    def get(self, request, *args, **kwargs):
+        online_count = DeviceInfo.objects.filter(online=1).count()
+        offline_count = DeviceInfo.objects.filter(online=0).count()
+        data = {'online_count': online_count, 'offline_count': offline_count}
+        return Response(data)