Passing Variables Around

[Cato]

I really don’t understand what you are trying to do! It seems you are trying to put some code inside config.js?!?

[jeremytripp]

Yes, @Cato I was afraid I overcomplicated the question. I actually tried to simplify it later, but apparently there’s a time limit on editing. Let me try simplify.

Let’s say I want to take the Hello World module and base it’s text on a variable. That’s the simplest form.

So hypothetically, my config.js could look like:

var someVariable = "myString";
var config = { 
    modules: [
   {
        module: 'helloworld',
             position: 'top_bar',
             config: {
                 text: someVariable
             }
        }
    ]
}

Unfortunately, using a variable in place of an actual string of text seems to break the config file. Surely there must be a way!

[Cato]

Ok, I understand what you are trying to do. But I’m pretty sure it’s not possible to insert variables into the config file.

If you can’t access your MongoDB using a client side API, I would suggest adding a node_helper to your module and sending “notifications” between frontend (module) and backend (node_helper) asking for the information you need? You can do this in the start-part of the module if it is an one time thing.

If you haven’t, make sure to read and understand this documentation: https://github.com/MichMich/MagicMirror/tree/develop/modules

[plumcraft]

Hello,

I was trying to clean my config file and the following is working for me.
Let me know if it’s working for you.

---

/* Magic Mirror Config Sample
*

• By Michael Teeuw http://michaelteeuw.nl
• MIT Licensed.
  */

var stocks_list = “INDEXSTOXX:SX5E”;
var weather_api_key = “XXXXXXXX”;
var weather_pws = “XXXXXXXX”;
var hue_bridge_ip = “XXXXXXXX”;
var hue_user_id = “XXXXXXXX”;
var voice_code = “JARVIS”;

var alert = { module: ‘alert’ };

var stocks = { module: ‘mmm-stocks’, position: ‘top_bar’, config: { stocks: stocks_list, updateInterval: 37000 } };

var clock = { module: ‘clock’, position: ‘top_left’ };
var weather = { module: ‘MMM-WunderGround’, position: ‘top_left’, config: { apikey: weather_api_key , weather_pws ,hourly: ‘1’, alerttruncatestring: “french:” } };

var hue = { module: ‘MMM-Hue’, position: ‘top_right’, config: { bridgeip: hue_bridge_ip , userid: hue_user_id ,colour: false} };

var hide = { module: ‘mm-hide-all’, position: ‘bottom_right’ };

var voice = { module: ‘MMM-voice’, position: ‘bottom_bar’, config: { keyword: voice_code, microphone: 1, debug: true } };

var config = {
port: 8080,
language: ‘en’,
timeFormat: 24,
units: ‘metric’,
modules: [ clock, hue, stocks, voice, weather ]
};

/*************** DO NOT EDIT THE LINE BELOW ***************/
if (typeof module !== ‘undefined’) {module.exports = config;}

[Cato]

@jeremytripp

Is this what you really want:

var myName = "Cato";
var myModule = { module: 'MyModule', position: 'top_left', config: { name: myName }};
console.log(myModule);

Output:

{ module: 'MyModule',
  position: 'top_left',
  config: { name: 'Cato' } }

[jeremytripp]

Basically yes, that’s what I’m trying to do. Would that work, assuming I set it up as a new module according to the guidelines you sent earlier? (thank you by the way, that helped a lot).

Essentially I’m just trying to be able to pull data from my MongoDB (I will probably roll this into its own module – right now I’ve committed the sin of modifying app.js directly until I get my bearings). Then use the Mongo data to populate data in other modules (think Hello World, Compliments, etc.).

It sounds like I will need to create a second module that essentially takes my Mongo data and sends it in the form of a JSON object variable to other modules using sendNotification() and then have them update the DOM to reflect the change. I know there are some nuances, but for the sake of brevity, am I generalizing/thinking about it correctly?