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Trying to update a part of json encoded table in a global variable


Question

Hi,

I have implemented @cag014 HomeTable to track the device ID's of my HC2

 

the table structure is like this 

 

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I can update the whole table but was wondering if it was possible to update a specific vale such as "scene.AlarmControl" in the example I posted above.

Any helpful code snippets gratefully accepted :-)

 

thanks

-f

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Yes, you can update any value at any code and then after an update  just restore the global variable - for example

fibaro:setGlobal("GlobalVar",json.encode(jTable) )

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  • 51 minutes ago, cag014 said:

    Yes, you can update any value at any code and then after an update  just restore the global variable - for example

    fibaro:setGlobal("GlobalVar",json.encode(jTable) )

     

    Thanks @cag014

    I think I didn't present what I'm trying to do very well.

    I just want to update just one value pair like the lux (id) in the kitchen to be 1235 to 5467 and I'm looking to do it through lua.

    I think I can read the whole table but I'm not sure how to find and update the single value before i save the gv again 

     

    If it's possible and you have more info on the lua or approach that would be great 

    Thx

    F

     

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    It's very simple as an example:

    -- set new ID for Light in office

    office.Light = 55 

    -- now restore the value

    fibaro:setGlobal("GlobalVar",json.encode(HomeTable) )

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    A bit tangential: do you use the variables panel? If you do... saving data via the panel messes with non-numerical data (like json). If you want to make the code more robust, please check if the json decode succeeds and if the table structure is valid. Just shout if you want me to elaborate.

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  • Thanks @cag014 / @petergebruers

     

    I have to admit I'm feeling a bit stupid with this one.. :cry:

    .. I'll start at the beginning and apologies if I'm repeating myself but I'm not sure what to do next.

     

    I'm using the Hometable idea to manage the device and scene ID's. I'm using a predefined variable for the table. I haven't been using the 'save' button for the reason peter stated .

     

     

     

     

    I have a very simple VD that I use to keep the table up to date. If I need to adjust the "data" I drop the new json into and vd and it updates the table.

    This is end of my VD..

     

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    the table gets updated and I use the last 3 lines as a crude way of verifying that the table didn't corrupted in the process.

     

    This method of updating the table (part manual and part programmable) is working very well for me.

     

    I have a new project where I want o keep track of some data for my sonos zones.

    I created a new predefined variable with the following structure

     

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    I've been trying to find a way to update parts of the table above through code alone.

     

    I'm assuming that this is possible (it must be ??) and this is my crude attempt to try and understand the syntax.

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    I create the table and then try and change one of the parameters and update that within the table and then read it back to see if it has changed.

     

    Again apologies for perhaps not articulating what I'm trying to do and thanks for helping..

    -frank

     

     

     

     

     

     

     

     

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    OK.... for example let's change the Sonos TTS_Vol based on your code

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    that's all. 

    Please pay attention that the parameter saving done by using jT table

     

     

    Edited by cag014
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  • 13 minutes ago, cag014 said:

    OK.... for example let's change the Sonos TTS_Vol based on your code

    Please login or register to see this code.

    Please login or register to see this code.

    that's all. 

    Please pay attention that the parameter saving done by using jT table

     

     

     

    Thanks @cag014

    that's exactly what I wanted ... much appreciated

     

    -frank

     

     

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