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    MagicMirror² v2.24.0 is available! For more information about this release, check out this topic.

    Use of array within all module files

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    • bdeelman
      bdeelman last edited by bdeelman

      Hi,

      I convert a CSV file to a JSON array at the node_helper.js file. This array (subscriptions) is needed at several functions at the mmm-sample.js file.

      The array is available at other functions within the node_helper.js I use this.subscriptions = (jsonObj); within the CSVtoJSON function and declare var subscriptions = []; at the top of nodehelper.js and also at the mmm-sample.js.

      How can I achieve this? Do I need the sendSocketNotification functionality to send data back and forth between the files?

      Any help is much appreciated.

      Regards,
      Bert

      S 1 Reply Last reply Reply Quote 1
      • S
        sdetweil @bdeelman last edited by sdetweil

        @bdeelman correct. the helper gets data, and sends it to the module to use

        I use the csvtojson library in my MyCovid19 module.

        Sam

        Create a working config
        How to add modules

        1 Reply Last reply Reply Quote 0
        • bdeelman
          bdeelman last edited by

          Hi Sam,

          I take a look at that code. I can read it. 😉 But can’t find the answer.

          This are my thougts. From start() I send

          this.sendSocketNotification('CONFIG', this.config);
          

          The this.config payload is needed at the node_helper.js at two places. One to figure out the csv file and do the MQTT stuff.

          CSVToJSON({ ignoreEmpty: true, trim: true })
          		.fromFile(CSVfile)
          		.then((jsonObj) => {
          			//console.log(jsonObj);
          			this.subscriptions = (jsonObj); //JSON.parse
          			this.setconfig(payload);
          		})
          

          I forward the this.config to the MQTT function. The array subscriptions is available there. At the MQTT function:

          self.sendSocketNotification('MQTT_PAYLOAD', {
          				topic: topic,
          				value: value,
          				subs: self.subscriptions
          				)};
          

          These payloads arrived within the function at the module file. But I can not use the payload outside of that specific function.

          I am not a programmer as you can see…just using reverse engineering and read a lot of configurations. I am almost there, I think.

          Regards,
          Bert

          S 2 Replies Last reply Reply Quote 0
          • S
            sdetweil @bdeelman last edited by

            @bdeelman you would save the config value in a variable usable by all routines in the source file.

            u do not need to save in the modulename.js, as it is provided as this.config

            Sam

            Create a working config
            How to add modules

            bdeelman 1 Reply Last reply Reply Quote 0
            • bdeelman
              bdeelman @sdetweil last edited by

              @sdetweil can you be more precise? I did not understand you.

              The subscriptions is the generate json array with all kind of information to build an element / divs etc. That array is build at node_helper.js and globally needed within modulename.js.

              As I understand the way of working well…?

              Regards,
              Bert

              1 Reply Last reply Reply Quote 0
              • S
                sdetweil @bdeelman last edited by

                @bdeelman said in Use of array within all module files:

                These payloads arrived within the function at the module file. But I can not use the payload outside of that specific function.

                so in the receiving function, store the payload value somewhere that other functions can use it

                this.subscriptions=payload

                similar for the config info in the node_helper

                Sam

                Create a working config
                How to add modules

                bdeelman 1 Reply Last reply Reply Quote 0
                • bdeelman
                  bdeelman @sdetweil last edited by

                  @sdetweil Thanks for your reply. Much appreciated!

                  I think I need another approach to get the result that I need. The subscriptions array is (must be) part of the this.config. So I add subscriptions: [];to the defaults: at the modulename.js

                  The thing now is add the generated JSON (csvtojson) to the this.config. 😃 and I can use this.config as a payload.

                  The array is something like this:

                  subscriptions = [{
                      topic: 'homey/light/keuken/dimmer-fibaro-1/onoff', // MQTT Topic name
                      label: 'Licht keuken',
                      type: 'device',
                      display: { left: 50, top: 50  },
                    },
                  {
                      topic: 'homey/sensor/washok/temp-hum-xiaomi-1/measure-temperature',
                      label: 'Washok Temp',
                      type: 'label',
                      display: { left: 265, top: 0, prefix: "", suffix: "°C", decimals: 0 },
                  }
                  
                  S 1 Reply Last reply Reply Quote 0
                  • S
                    sdetweil @bdeelman last edited by sdetweil

                    @bdeelman sorry I do not understand what you want

                    u can send anything with sendSocketNotification and you can store it anywhere, not just in this.config

                    Sam

                    Create a working config
                    How to add modules

                    bdeelman 1 Reply Last reply Reply Quote 0
                    • bdeelman
                      bdeelman @sdetweil last edited by bdeelman

                      @sdetweil I am sorry and lost. 😉

                      The sendSocketNotification from node_helper.js

                      self.sendSocketNotification('MQTT_PAYLOAD', {
                      				topic: topic,
                      				value: value,
                      				subs: self.subscriptions
                      				)};
                      

                      So if I understand correctly…I should add this.subscriptions = payload; at the receiving function socketNotificationReceived at modulename.js

                      socketNotificationReceived: function(notification, payload) {
                      	this.subscriptions = payload;
                        if (notification === 'MQTT_PAYLOAD') {
                      // 
                      //
                        }
                      },
                      

                      I did that but it is not working. The array is not available at other functions within modulename.js.

                      At the node_helper part it is working. this.subscriptions = (jsonObj);and I can use the array at other functions. with

                      var self = this;
                      var l = self.subscriptions.length; // as an example.
                      
                      S 1 Reply Last reply Reply Quote 0
                      • S
                        sdetweil @bdeelman last edited by

                        @bdeelman so, I would open the developers window., ctrl-shift-i on the pi MM window
                        select the sources tab, navigate the left nav modules/your module name, select the source file name modulename.js

                        scroll to the line for the socketNotificationReceived().
                        this.

                        and click the number at the left edge of that line, should turn blue

                        then hit f5 to refresh the page, and MM will reload and you should stop at the line…

                        move your mouse over the word ‘this’, and it should expand a box describing what this points to , which should be THIS modules instance data…

                        if not, then THAT is the problem…

                        Sam

                        Create a working config
                        How to add modules

                        1 Reply Last reply Reply Quote 0
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