添加子设备是判断只能添加一个智能按钮

Controller/SensorGateway/SubDeviceController.py

@@ -106,6 +106,10 @@ class GatewaySubDeviceView(View):
             if sub_device_qs.exists():
                 sub_device_qs.update(src_addr=src_addr)  # 更新短地址
                 return response.json(174)
+            if device_type == SENSOR_TYPE['smart_button']:
+                sub_device_qs = GatewaySubDevice.objects.filter(device_id=device_id, device_type=device_type)
+                if sub_device_qs.exists():
+                    return response.json(174)
 
             with transaction.atomic():
                 sub_device = GatewaySubDevice.objects.create(device_id=device_id, device_type=device_type,