[Solve] LUA : attempt to index global 'devicechanged' (a nil value)

[deennoo]

Hi there,

Got an error on my script and don't know how to solve, maybe someone can help me

1 - Situation :
Running Domoticz (Version: 3.5228) on a Syno + RFLink + RFXTRXE

2 - Goal :
Manage Milight Bulb or wall socket true wall switch with chacon module inside, i want to be able to turn on/off the device or group depending of his previous state who can be drive by a scene or a remote

I Don't care about ON or Off wall switch status, just want : when his status change, script check "esclave device" status and toggle it from On to OFF or OFF to ON

3 - Script :

This one have to drive a wall plug From IDK with a Chacon wall switch

Inter lum Salon : the wall switch
Lumiere Salon = the wall plug

Code: Select all

commandArray = {}
 if (devicechanged['Inter lum salon'])  then
     commandArray['Lumiere Salon']='Toggle'
 end
 return commandArray
 

4 - Current status :

For the Wall switch

Code: Select all

1297	Inter lum salon	On	2016-06-09 09:46:59	15

{
   "ActTime" : 1465469517,
   "ServerTime" : "2016-06-09 12:51:57",
   "Sunrise" : "06:17",
   "Sunset" : "21:45",
   "result" : [
      {
         "AddjMulti" : 1.0,
         "AddjMulti2" : 1.0,
         "AddjValue" : 0.0,
         "AddjValue2" : 0.0,
         "BatteryLevel" : 255,
         "CustomImage" : 0,
         "Data" : "On",
         "Description" : "",
         "Favorite" : 0,
         "HardwareID" : 11,
         "HardwareName" : "RFXTRXE",
         "HardwareType" : "RFXCOM - RFXtrx433 USB 433.92MHz Transceiver",
         "HardwareTypeVal" : 1,
         "HaveDimmer" : true,
         "HaveGroupCmd" : true,
         "HaveTimeout" : false,
         "ID" : "1145DC6",
         "Image" : "Light",
         "IsSubDevice" : false,
         "LastUpdate" : "2016-06-09 09:46:59",
         "Level" : 100,
         "LevelInt" : 15,
         "MaxDimLevel" : 15,
         "Name" : "Inter lum salon",
         "Notifications" : "false",
         "PlanID" : "1",
         "PlanIDs" : [ 1 ],
         "Protected" : false,
         "ShowNotifications" : true,
         "SignalLevel" : 7,
         "Status" : "On",
         "StrParam1" : "",
         "StrParam2" : "",
         "SubType" : "AC",
         "SwitchType" : "On/Off",
         "SwitchTypeVal" : 0,
         "Timers" : "false",
         "Type" : "Lighting 2",
         "TypeImg" : "lightbulb",
         "Unit" : 1,
         "Used" : 1,
         "UsedByCamera" : false,
         "XOffset" : "0",
         "YOffset" : "0",
         "idx" : "1297"
      }
   ],
   "status" : "OK",
   "title" : "Devices"
}

For the wall Plug

Code: Select all

105	Lumiere Salon	Off	2016-06-09 09:47:03	0

{
   "ActTime" : 1465469552,
   "ServerTime" : "2016-06-09 12:52:32",
   "Sunrise" : "06:17",
   "Sunset" : "21:45",
   "result" : [
      {
         "AddjMulti" : 1.0,
         "AddjMulti2" : 1.0,
         "AddjValue" : 0.0,
         "AddjValue2" : 0.0,
         "BatteryLevel" : 255,
         "CustomImage" : 110,
         "Data" : "Off",
         "Description" : "",
         "Favorite" : 1,
         "HardwareID" : 25,
         "HardwareName" : "RFLink Ser2net",
         "HardwareType" : "RFLink Gateway with LAN interface",
         "HardwareTypeVal" : 62,
         "HaveDimmer" : true,
         "HaveGroupCmd" : true,
         "HaveTimeout" : false,
         "ID" : "00000060",
         "Image" : "Lampadaire",
         "IsSubDevice" : false,
         "LastUpdate" : "2016-06-09 09:47:03",
         "Level" : 0,
         "LevelInt" : 0,
         "MaxDimLevel" : 100,
         "Name" : "Lumiere Salon",
         "Notifications" : "false",
         "PlanID" : "2",
         "PlanIDs" : [ 2, 11 ],
         "Protected" : false,
         "ShowNotifications" : true,
         "SignalLevel" : "-",
         "Status" : "Off",
         "StrParam1" : "",
         "StrParam2" : "",
         "SubType" : "ELRO AB400",
         "SwitchType" : "On/Off",
         "SwitchTypeVal" : 0,
         "Timers" : "true",
         "Type" : "Light/Switch",
         "TypeImg" : "lightbulb",
         "Unit" : 4,
         "Used" : 1,
         "UsedByCamera" : false,
         "XOffset" : "0",
         "YOffset" : "0",
         "idx" : "105"
      }
   ],
   "status" : "OK",
   "title" : "Devices"
}

5 - Error :

Code: Select all

2016-06-09 12:40:00.959 Error: EventSystem: in Lum salon: [string "commandArray = {} ..."]:2: attempt to index global 'devicechanged' (a nil value)

Your Help will be very appriciated to solve this.

[Raducanu]

I'm also new to LUA, but if i understand https://www.domoticz.com/wiki/Events correctly, you have to specify what changed...

Code: Select all

commandArray = {}
 if (devicechanged['Inter lum salon'] == 'On')  then
     commandArray['Lumiere Salon']='Toggle'
 end
 return commandArray

[Westcott]

Is it a 'time' script rather than a 'device' script?

[deennoo]

@Westcott t
That a device script i'm looking for a device status change (Chacon wall switch)

[deennoo]

@Raducanu

even if i try this :

Code: Select all

commandArray = {}
 if (devicechanged['Inter loisir'] == 'On')  then
     commandArray['Plafonnier Loisir']='Toggle'
 end
  if (devicechanged['Inter loisir'] == 'Off')  then
     commandArray['Plafonnier Loisir']='Toggle'
 end
 return commandArray

Log give this :

Code: Select all

2016-06-09 14:53:00.288 Error: EventSystem: in Lum Loisir: [string "commandArray = {} ..."]:2: attempt to index global 'devicechanged' (a nil value)

Both script works very well and as i'm leasy guy i will use the first, but i don't like thos red line on my log

[jvdz]

When you use the internal script editor make sure you do not have "All" but "Device" selected underneath LUA.

Jos

[deennoo]

When you use the internal script editor make sure you do not have "All" but "Device" selected underneath LUA.

Jos

that it !!!
thank you very much !

[sangve]

Oh, that's just lovely!
Thank you for helping me with the exact same thing! <3

[mbeefcake]

Helped me too Thanks!

[freijn]

Helped me , many thanks !

[Stefan]

helped me too bedankt

[rammstan]

When you use the internal script editor make sure you do not have "All" but "Device" selected underneath LUA.

Jos

That's it. thanks

[digdilem]

Another one this helped!

Really non-intuitive behaviour and not a very helpful error message, so glad for this help.

[Medzu]

Thnx!

[u01026366]

solved also for me

thanks !!!

[imautohuttraeger]

Helped me, too. Thx!