check if qa variable exists and if not create it

[Jay Ess 6]

how do i create a new qa (self) variable fromw ithin a qa please?

[jgab 2,642]

api.post("/globalVariables",{name="myVar", value="ok",isEnum=false, readOnly=false})

4 minutes ago, jgab said:

api.post("/globalVariables",{name="myVar", value="ok",isEnum=false, readOnly=false})

Ah, you asked for a QA variable....

You don't need to create them - just self:setVariable("Test",55) will create test if it doesn't exist.

Edited January 7, 2022 by jgab

[jgab 2,642]

and unfortunately, with Fibaro's wisdom they let self:getVariable("test") return "" if the variable doesn't exists (but you get a warning in the console)

 

[SmartHomeEddy 1,005]

After:

 

var = self:getVariable("var")

 

I do:

 

if var == "" or var == nil then

  var = “1234”

  self:setVariable("var",var)

end

 

 

[Jay Ess 6]

when i run this in a qa i get this error: setup.lua:10: attempt to index a nil value (global 'self')

this is my function which i am trying to setup:

function setQAVariables()

    local CornerVariableName = "shabbosLightCorner"

    local DovidVariableName = "shabbosLightDovid"

    local RifkaVariableName = "shabbosLightRifka"

    local ShanaVariableName = "shabbosLightShana"

    local tb={CornerVariableName,DovidVariableName,RifkaVariableName,ShanaVariableName}

    for k,v in pairs(tb)do

        print(v)

        var = self:getVariable(v)

        if var == "" or var == nil then

            self:setVariable(v, "true")

        end

    end

end

what am i doing wrong?

[jgab 2,642]

You can only use self inside a 

function QuickApp:<name>(….) 

 ….

end

 

[Jay Ess 6]

thank you fixed

[Jay Ess 6]

if i have a function fn(a,p)

return a*p

end

 

i now want to set a qa variable how do i do that please?

i cant use self:setVariable as the function is not a QUickApp:function?

[jgab 2,642]

16 hours ago, Jay Ess said:

if i have a function fn(a,p)

return a*p

end

 

i now want to set a qa variable how do i do that please?

i cant use self:setVariable as the function is not a QUickApp:function?

 

Please login or register to see this code.

 

[Jay Ess 6]

sorry thought i had understood what you had written but i try it, i cant get it to work and throws me errors.

i am trying to get a qa variable.

Edited January 26, 2022 by Jay Ess

[Jay Ess 6]

is there a way of getting the last update of the qa variable?

[jgab 2,642]

17 minutes ago, Jay Ess said:

is there a way of getting the last update of the qa variable?

You mean when it was updated? Not really for an individual quickAppVariable.

You can get the last time any quickAppVariable was updated

Please login or register to see this code.

 

Edited February 1, 2022 by jgab

[Jay Ess 6]

local sLastUpdateTime = select(2,fibaro.get(self.id,'quickAppVariables')) this does the same with out having to define the _variable correct?