Virtual device Using globals

[Jamie mccrostie 82]

Between mouth fulls of xmas turkey, can someone help me with how this should be done correctly.

I'm trying to compare multiple defined globals to turn a device on or off in VD main loop .

Also can we use not equal  .... if fibaro:getGlobal("PresentState") not equal to "Holiday" if so what key for the little squiggle character before the = sign for not equal?

Thanks Jamie

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[RH_Dreambox 189]

Quote

Also can we use not equal  .... if fibaro:getGlobal("PresentState") not equal to "Holiday" if so what key for the little squiggle character before the = sign for not equal?

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[petergebruers 1,268]

Are you on a MAC? It's alt-n for tilde "~", but it's a dead key, so you either type = or space after that.

[Jamie mccrostie 82]

5 hours ago, petergebruers said:

Are you on a MAC? It's alt-n for tilde "~", but it's a dead key, so you either type = or space after that.

Thanks, what about a windows PC?

[Jamie mccrostie 82]

8 hours ago, petergebruers said:

Are you on a MAC? It's alt-n for tilde "~", but it's a dead key, so you either type = or space after that.

Thanks, what about a windows PC?

 

Edited December 25, 2017 by Jamie mccrostie

[Jamie mccrostie 82]

8 hours ago, petergebruers said:

Are you on a MAC? It's alt-n for tilde "~", but it's a dead key, so you either type = or space after that.

 

My question relates to this. I have one defined global with three possible settings holiday, away and home. How do I write a argument where "Away" and "Home" are both true results.  I was thinking not equal was the easiest way to do this

ie  fibaro:getGlobal("PresentState") not = "Holiday".

How else can i do this?

Thanks

Edited December 25, 2017 by Jamie mccrostie

[petergebruers 1,268]

17 hours ago, Jamie mccrostie said:

Thanks, what about a windows PC?

If you do not have a key for that, but you have a numeric keypad, you can type ALT (hold) then in succession 0 1 2 6

 

17 hours ago, Jamie mccrostie said:

I have one defined global with three possible settings holiday, away and home.

 

There's probably a lot to tell about this seemingly simple question.

 

You can see each comparison as boolean (only returning true or false). So you stack them with "and" and "or" - maybe use "not" or "~=".

 

One boolean logic rule can make your code easier to read. If you say

 

not(A and B)

 

This can be written as

(not A) or (not B)

 

However! You are dealing with a global variable. If we assume Presentstate has a fixed number of predefined values, you can write rules either way. If you add a value, things might break.

 

Assume PresentState can only contain "Home" and "Away". Then (variable == "Away") equates to (variable ~= "Home"). But what happens if you add "Sleeping"? They are no longer equivalent...

[Jamie mccrostie 82]

5 hours ago, petergebruers said:

If you do not have a key for that, but you have a numeric keypad, you can type ALT (hold) then in succession 0 1 2 6

 

 

There's probably a lot to tell about this seemingly simple question.

 

You can see each comparison as boolean (only returning true or false). So you stack them with "and" and "or" - maybe use "not" or "~=".

 

One boolean logic rule can make your code easier to read. If you say

 

not(A and B)

 

This can be written as

(not A) or (not B)

 

However! You are dealing with a global variable. If we assume Presentstate has a fixed number of predefined values, you can write rules either way. If you add a value, things might break.

 

Assume PresentState can only contain "Home" and "Away". Then (variable == "Away") equates to (variable ~= "Home"). But what happens if you add "Sleeping"? They are no longer equivalent...

Thanks, I chickened out and toggled another global off holiday.

A seeming simple heating VD has taught me plenty including the value of not switching devices within the VD, Zwave Traffic with looping.

Heating scene triggered by VD this mornings task.