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[SOLVED]LUA Boolean Logic Problem


jodohl

Question

I have a scene that is suppposed to check a variable called "Snow" at Monday through Friday at 5 am and 3 pm and weekends at 7 pm and 3 pm. If Snow = "Yes", a scene is activated, turning on my outdoors heating mats for 2 hours (and at the same time resetting Snow = "No"). My thinking is to limit the use of expensive snow melting electricity to max 2 + 2 = 4 hours / 24 hours

 

The problem with the code below is that the scene triggers with variable Snow = "Yes" also outside the stated hours. What is it I am not getting right here ? I thought the AND operator had hierarchial priority over OR and that the code below would turn on the heater if the variable Snow = "Yes" AND the time is 5 am or 3 pm on weekdays or 7 am and 3 pm in weekends. But it seem to trigger whenever the variable Snow = "Yes", also outside these hours.

 

Help will be highly appreciated! (Scene 51 is the scene actually turning on the heating mats for two hours):

 

Best regards

Jo

 

--[[
%% autostart
%% properties
%% weather
%% events
%% globals
Snow
--]]

local sourceTrigger = fibaro:getSourceTrigger();
function tempFunc()
local currentDate = os.date("*t");
local startSource = fibaro:getSourceTrigger();
if (
 ( ((currentDate.wday == 2 or currentDate.wday == 3 or currentDate.wday == 4 or currentDate.wday == 5 or currentDate.wday == 6) and string.format("%02d", currentDate.hour) .. ":" .. string.format("%02d", currentDate.min) == "05:00") )
and
 ( fibaro:getGlobalValue("Snow") == "Yes" )
or
 ( ((currentDate.wday == 1 or currentDate.wday == 2 or currentDate.wday == 3 or currentDate.wday == 4 or currentDate.wday == 5 or currentDate.wday == 6 or currentDate.wday == 7) and string.format("%02d", currentDate.hour) .. ":" .. string.format("%02d", currentDate.min) == "15:00") )
and
 ( fibaro:getGlobalValue("Snow") == "Yes" )
or
 ( ((currentDate.wday == 1 or currentDate.wday == 7) and string.format("%02d", currentDate.hour) .. ":" .. string.format("%02d", currentDate.min) == "07:00") )
and
 ( fibaro:getGlobalValue("Snow") == "Yes" )
)
then
    fibaro:setGlobal("Snow", "No");
    fibaro:startScene(51);
end

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5 answers to this question

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  • 0
7 godzin temu, jodohl napisał:

The problem with the code below is that the scene triggers with variable Snow = "Yes" also outside the stated hours.

 

--[[
%% autostart
%% properties
%% weather
%% events
%% globals
Snow
--]]

 

 

Hi @jodohl
Remove the Snow trigger variable from Your code.

BR

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  • 0
  • Inquirer
  • Hi!

     

    I do not understand your advice. Remove the Snow variable...? The wole point is to trigger the scene at certain times IF Snow = Yes. 

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    Hi, 

    this is Your triggers what You use to start the scene:

    --[[
    %% autostart
    %% properties
    %% weather
    %% events
    %% globals
    Snow
    --]]

    every time when those variables change the scene will run , your scene based on time events 2 times a day, so You don't need Snow here , %%weather also is no need. 

    Edited by domin12
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    • 0
  • Inquirer
  • Great! Thanks a lot !! 

    This is what happens when a lazy person like myself convert code from block scene to LUA and start modifying without bothering to learn things properly.

    I have struggled a lot with understanding what "The scene will run" really means. Does it mean:

     

    (1) Execute the IF test and do nothing if the IF conditions is not true

    (2) Execute the THEN statement, regardless whether the preceding IF condition is true or false

     

    I guess (2) is what happens. This is equivalent to saying that you do not "trigger" the IF test. The IF test is one way of triggering. Manual execution another. And a change in one of the trigger variables a third. Am i right ?

    Edited by jodohl
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    HI @jodohl

    I did not look at your scene how you use IF statement.

     

    In your case if condition is true then set variable Snow to NO, i think that this change of variable should be in scene No 51.

    i will change a little bit your scene and here You are:

     

    --[[
    %% autostart
    %% properties
    %% events
    %% globals
    --]]
    local sourceTrigger = fibaro:getSourceTrigger();
    function tempFunc()
    local currentDate = os.date("*t");
    local startSource = fibaro:getSourceTrigger();
    if (
     ( ((currentDate.wday == 2 or currentDate.wday == 3 or currentDate.wday == 4 or currentDate.wday == 5 or currentDate.wday == 6) and string.format("%02d", currentDate.hour) .. ":" .. string.format("%02d", currentDate.min) == "05:00") )
    and
     ( fibaro:getGlobalValue("Snow") == "Yes" )
    or
     ( ((currentDate.wday == 1 or currentDate.wday == 2 or currentDate.wday == 3 or currentDate.wday == 4 or currentDate.wday == 5 or currentDate.wday == 6 or currentDate.wday == 7) and string.format("%02d", currentDate.hour) .. ":" .. string.format("%02d", currentDate.min) == "15:00") )
    and
     ( fibaro:getGlobalValue("Snow") == "Yes" )
    or
     ( ((currentDate.wday == 1 or currentDate.wday == 7) and string.format("%02d", currentDate.hour) .. ":" .. string.format("%02d", currentDate.min) == "07:00") )
    and
     ( fibaro:getGlobalValue("Snow") == "Yes" )
    )
    then
            --fibaro:setGlobal("Snow", "No"); -- move to 51 scene or move to the bootm as is now
            fibaro:startScene(51);
            fibaro:sleep(5000)
            fibaro:setGlobal("Snow", "No");
        end
    setTimeout(tempFunc, 60*1000)
    end
    if (sourceTrigger["type"] == "autostart") then
    tempFunc()
    end

    Edited by domin12
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