Error handling dz read (zigbeefordomoticz#1819)

* do not store nor use Domoticz database for plugin db
* more resilient when reading Domoticz db

Classes/PluginConf.py

@@ -547,8 +547,8 @@ def _load_Settings(self):
     if is_domoticz_db_available(self):
         _domoticz_pluginConf = getConfigItem(Key="PluginConf")
         if "TimeStamp" in _domoticz_pluginConf:
-            dz_timestamp = _domoticz_pluginConf["TimeStamp"]
-            _domoticz_pluginConf = _domoticz_pluginConf["b64Settings"]
+            dz_timestamp = _domoticz_pluginConf.get("TimeStamp",0)
+            _domoticz_pluginConf = _domoticz_pluginConf.get("b64Settings",{})
             Domoticz.Log(
                 "Plugin data loaded where saved on %s"
                 % (time.strftime("%A, %Y-%m-%d %H:%M:%S", time.localtime(dz_timestamp)))

Modules/database.py

@@ -284,8 +284,8 @@ def _read_DeviceList_Domoticz(self):
     ListOfDevices_from_Domoticz = getConfigItem(Key="ListOfDevices", Attribute="Devices")
     time_stamp = 0
     if "TimeStamp" in ListOfDevices_from_Domoticz:
-        time_stamp = ListOfDevices_from_Domoticz["TimeStamp"]
-        ListOfDevices_from_Domoticz = ListOfDevices_from_Domoticz["Devices"]
+        time_stamp = ListOfDevices_from_Domoticz.get("TimeStamp",0)
+        ListOfDevices_from_Domoticz = ListOfDevices_from_Domoticz.get("Devices",{})
         self.log.logging(
             "Database",
             "Log",

plugin.py

@@ -402,6 +402,9 @@ def onStart(self):
             self.zigbee_communication, self.VersionNewFashion, self.DomoticzMajor, self.DomoticzMinor, Parameters["HomeFolder"], self.HardwareID
         )
 
+        self.pluginconf.pluginConf["useDomoticzDatabase"] = False 
+        self.pluginconf.pluginConf["storeDomoticzDatabase"] = False
+
         if self.internet_available is None:
             self.internet_available = is_internet_available()