статус с резервуара теперь берется из бд сайта

logs_service/services.py

@@ -14,7 +14,7 @@ class MbClearHistoryService(Thread):
 
     def run(self):
         while True:
-            self.model.objects.filter(dt__lt=(timezone.now() - timezone.timedelta(days=60))).delete()
+            self.model.objects.filter(dt__lt=(datetime.now() - timedelta(days=60))).delete()
             time.sleep(10)
 
 
@@ -79,21 +79,10 @@ class MbService(Thread):
             else:
                 last_query = datetime.now()
 
-    def to_json(self):
-        return {}
-
 
 class MbTankService(MbService):
     def __init__(self, **kwargs):
         super().__init__(**kwargs)
-        self.registers = {}
-        # {
-        #     'last_update': None,  # последнее обновление, unix time
-        #     'level': None,  # текущее показание, пересчитанное в %
-        #     'radar': None,  # текущее показание с радара
-        #     'status': None,  # статусный регистр
-        #     'last_radar_values': []  # последние показания за 15 минут
-        # }
 
         self._curr_state = None
         # {
@@ -102,23 +91,8 @@ class MbTankService(MbService):
         #      "radar": int
         # }
 
-        # для фильтрации уровня, чтобы его в бд писать
-        self.level_filter = []
-
-    def _update_last_radar_values(self):
-        res = [[item.dt.timestamp(), item.radar_raw]
-               for item in MbTankRecord.objects.filter(dt__gt=(datetime.now() - timedelta(minutes=15))).order_by('-dt')]
-        self.registers['last_radar_values'] = res
-
     def _init_state(self):
-        self.last_save = MbTankRecord.objects.order_by('-dt').first()
-        print(f"Initializing MbTankService: last_save={self.last_save}")
-        if self.last_save is not None:
-            self.registers['last_update'] = self.last_save.dt
-            self.registers['level'] = self.last_save.level
-            self.registers['radar'] = self.last_save.radar_raw
-            self.registers['status'] = self.last_save.status
-            self._update_last_radar_values()
+        pass
 
     def _push_current_state(self):
         record = MbTankRecord(radar_raw=self._curr_state['radar'],
@@ -137,14 +111,10 @@ class MbTankService(MbService):
             "status": values[5],
             "radar": (values[1] << 16) | values[2]
         }
-        self.registers['last_update'] = datetime.now()
 
     def _check_need_save(self):
         return True
 
-    def to_json(self):
-        return self.registers
-
 
 class MbPumpService(MbService):
     _config = {