Domoticz

Looking to dramatically simplify my alarm system scripts, I am struggling to get a helper fuction to work:
I have multiple ways to switch on/off the alarm (keypad, geofence, ..) so want to create a global helper function that does this.
When I call the helper function, it complains about attempting to access a global domoticz (nil value). I find that I cannot access domoticz data nor call domoticz devices from a helper function.
Am I doing something wrong or is that by design?

hetest.lua
return {
active = true,
on = {
devices = { 'hetest' }
},
execute = function(domoticz, dev)
local results = domoticz.helpers.AlarmOn(domoticz.security)
local results = domoticz.helpers.AlarmOff(domoticz.security)
end
}

global_data.lua
return {
helpers = {
AlarmOn = function(state)
print('In AlarmOn: ' .. state)
domoticz.devices('Security Panel').armAway()
end,

AlarmOff = function(state)
print('In AlarmOff: ' .. state)
domoticz.devices('Security Panel').disarm()
end
}
}

Error:
2017-07-21 11:27:16.732 Error: dzVents: Error: An error occured when calling event handler hetest
2017-07-21 11:27:16.732 Error: dzVents: Error: /home/pi/domoticz/scripts/dzVents/scripts/global_data.lua:15: attempt to index global 'domoticz' (a nil value)

Talking to Danny, add domoticz as an argument to the helper and it works. Confirmed!

It should be convenient though if there was a way to access the domoticz object without adding it as an argument to all the helper functions...

Cheers!

Well, I don't like to create too many globals. It is a bad practise programming-wise. Globals may have undesired so-called side-effects that may be hard to debug. That's why you should always create your Lua variables as local in your code-blocks. If not they may interfere with other scripts as the value isn't cleared when other dzVents scripts will be executed.