Domoticz

Posted: **Friday 25 November 2016 17:18**

Ciao,

I'm creating a LUA script file that includes all the common routine that can be used in the event scripting in lua without defining them all the times
The file script is named LibUtil.LUA and at the moment include Time difference (as per wiki) and a conversion from CSV to table
the file is called in each script as:

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libutil = loadfile "/home/pi/domoticz/scripts/lua/LIBUTIL.lua"()

than you can call different routines like

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libutil:timeDiff(s)

the time difference function has been changed a little to be considered... universal..
here's mine:

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function timeDiff(dName,dType)
    t1 = os.time()
    if dType == 'v' then 
        updTime = uservariables_lastupdate[dName]
    elseif dType == 'd' then
        updTime = otherdevices_lastupdate[dName]
    end 
    year = string.sub(updTime, 1, 4)
    month = string.sub(updTime, 6, 7)
    day = string.sub(updTime, 9, 10)
    hour = string.sub(updTime, 12, 13)
    minutes = string.sub(updTime, 15, 16)
    seconds = string.sub(updTime, 18, 19)
    
    t2 = os.time{year=year, month=month, day=day, hour=hour, min=minutes, sec=seconds}
    
    tDiff = os.difftime(t1,t2)
    return tDiff
end

the function has 2 arguments: device name and device type: V for a variable, D for a device
in this way I can test both cases with a single function

now I will defice and call this way:

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libutil = loadfile "/home/pi/domoticz/scripts/lua/LIBUTIL.lua"()
varName = 'MyVariable'
devName = 'MyDevice'
commandArray = {}
    secsDevice = libutil:timeDiff(devName,'d')
    secsVariable = libutil:timeDiff(varName,'v')
    
    print ( "Time difference for Device '..devName..': '..secsDevice..' - for Variable '..varName..': '..secsVariable)
return commandArray

...in case you add the function in each script it could even not need that, but if you willing to create a library.. it could be useful

Hope this could help someone
ciao
M

Domoticz

universal Time Difference Script

universal Time Difference Script