feat: 完善设备详情接口

apps/counter/api/mobile/serializers.py

@@ -7,6 +7,9 @@ from mosquito.models import DeviceInfo as MosquitoDeviceInfo
 class DeviceInfoMobileSerializer(serializers.ModelSerializer):
     device_name = serializers.SerializerMethodField()
     status = serializers.SerializerMethodField()
+    csq = serializers.SerializerMethodField()
+    count = serializers.SerializerMethodField()
+    vol = serializers.SerializerMethodField()
     coordinate = serializers.SerializerMethodField()
     location = serializers.SerializerMethodField()
 
@@ -16,6 +19,9 @@ class DeviceInfoMobileSerializer(serializers.ModelSerializer):
             'device_id',
             'device_name',
             'status',
+            'count',
+            'csq',
+            'vol',
             'coordinate',
             'location',
         ]
@@ -24,6 +30,7 @@ class DeviceInfoMobileSerializer(serializers.ModelSerializer):
         super().__init__(*args, **kwargs)
         self.latest = None
         self.cur_device = None
+        self.counter_device = None
 
     def get_device_name(self, obj) -> Optional[str]:
         qs = MosquitoDeviceInfo.objects.filter(device_id=obj.device_id)
@@ -47,3 +54,21 @@ class DeviceInfoMobileSerializer(serializers.ModelSerializer):
         if self.cur_device:
             return self.cur_device.location
         return None
+
+    def get_count(self, obj):
+        device = DeviceCount.objects.filter(
+            device_id=self.cur_device.device_id).order_by('-data_time').first()
+        if device:
+            self.counter_device = device
+            return device.count
+        return None
+
+    def get_csq(self, obj):
+        if self.counter_device:
+            return self.counter_device.csq
+        return None
+
+    def get_vol(self, obj):
+        if self.counter_device:
+            return self.counter_device.vol
+        return None