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    A New Chapter for MagicMirror: The Community Takes the Lead
    Read the statement by Michael Teeuw here.

    read csv-data and put it in an array

    Scheduled Pinned Locked Moved Utilities
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    • PerlchampP Offline
      Perlchamp
      last edited by

      hallo sam :-)
      i have now this in my node_helper.js:

      var NodeHelper = require("node_helper");
      
      // add require of other javascripot components here
      // var xxx = require('yyy'); here
      const csv = require("csvtojson");
      const csvFilePath = this.path + 'birthdaylist.csv';
      
      
      module.exports = NodeHelper.create({
      
      	init(){
      		console.log("init module helper perlchamp");
      	},
      
      	start() {
      		console.log("Starting module helper: ${this.name}");
      		console.log("dieser Pfad: ${this.path}");
      		
      		csv()
      		.fromFile(csvFilePath)
      		.then((jsonObj)=>{
      			console.log(jsonObj);
      		})
      
      	},
      
      /*
      	stop(){
      		console.log(`Stopping module helper: ${this.name}`);
      	},
      */
      	// handle messages from our module// each notification indicates a different messages
      	// payload is a data structure that is different per message.. up to you to design this
      	socketNotificationReceived(notification, payload) {
      		console.log(this.name + " received a socket notification: " + notification + " - Payload: " + payload);
      		// if config message from module
      		if (notification === "CONFIG") {
      			// save payload config info
      			this.config=payload
      			// wait 15 seconds, send a message back to module
      			setTimeout(()=> { this.sendSocketNotification("message_from_helper"," this is a test_message")}, 15000)
      		}
      		else if(notification === "????2") {
      		}
      
      	},
      
      });
      

      terminal says:

      Unhandled rejection Error: File does not exist. Check to make sure the file path to your csv is correct.
          at /home/dirk/MagicMirror/node_modules/csvtojson/v2/Converter.js:81:37
          at suppressedCallback (fs.js:209:5)
          at FSReqCallback.oncomplete (fs.js:153:23)
      

      it’s from your SampleModule …

      1. how can i see the console.log statements in the browser, starting MM ?
      2. did i enter the code in the right place?
      3. if I enter the following into the terminal window:
        node console.log (‘path: $ {this.path}’)
        i got an error message:
        bash: Syntaxerror unexpected word `(’
        what am I doing wrong ?

      many thanks in advance

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

        @Perlchamp said in read csv-data and put it in an array:

        • how can i see the console.log statements in the browser, starting MM ?
          cannot see node_helper messages in browser, must look in the terminal window where u did npm start
          you can redirect those messages to a file
          npm start >somefile
          and then look at somefile live with editor

        • did i enter the code in the right place?
          const csvFilePath = this.path + ‘birthdaylist.csv’;
          u have this.path outside the NodeHelper.create, at that time ‘this’ does not exist
          ‘this’ means ‘instance of’, and u are outside the thing that creates the instance

        • if I enter the following into the terminal window:

        because u are not running in magic mirror , ‘this’ does not exist
        node console.log (‘path: $ {this.path}’)

        • i got an error message:
        • bash: Syntaxerror unexpected word `(’
          what am I doing wrong…
          bash would not see any ( unless u put it on the line with node

        node (something)
        that is a command to bash (the terminal window program, he has his own rules about parens, and other special characters (* means ALL filenames in this folder for example!)

        I never ever use $ in node_helper (or anywhere else)
        I would do this
        console.log (‘path: '+ this.path)

        Sam

        How to add modules

        learning how to use browser developers window for css changes

        1 Reply Last reply Reply Quote 0
        • PerlchampP Offline
          Perlchamp
          last edited by

          thank you. ok, i will test …

          only for your information:

          start() {
          		console.log(`Starting module helper: ${this.name}`);
          	},
          
          	stop(){
          		console.log(`Stopping module helper: ${this.name}`);
          	},
          

          this is from your SampleModule. i’m not here to reprimand you. it should only be information. so please do not misunderstand.

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

            @Perlchamp thanks… will fix… never copy from another without review!!

            Sam

            How to add modules

            learning how to use browser developers window for css changes

            S 1 Reply Last reply Reply Quote 0
            • PerlchampP Offline
              Perlchamp
              last edited by

              always my pleasure

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

                @Perlchamp fixed

                Sam

                How to add modules

                learning how to use browser developers window for css changes

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

                  if u redirect the output of npm start to a file, this is what you will see in the file

                  
                  > magicmirror@2.11.0 start /home/sam/MagicMirror
                  > DISPLAY="${DISPLAY:=:0}" ./node_modules/.bin/electron js/electron.js
                  
                  [2020-04-30 11:15:53.521] [LOG]    Starting MagicMirror: v2.11.0
                  [2020-04-30 11:15:53.524] [LOG]    Loading config ...
                  [2020-04-30 11:15:53.526] [LOG]    Loading module helpers ...
                  [2020-04-30 11:15:53.528] [LOG]    Initializing new module helper ...
                  [2020-04-30 11:15:53.528] [LOG]    Module helper loaded: MMM-Logging
                  [2020-04-30 11:15:53.529] [LOG]    No helper found for module: alert.
                  [2020-04-30 11:15:53.529] [LOG]    No helper found for module: clock.
                  [2020-04-30 11:15:53.663] [LOG]    Initializing new module helper ...
                  [2020-04-30 11:15:53.663] [LOG]    Module helper loaded: MyCovid19
                  [2020-04-30 11:15:53.784] [LOG]    Initializing new module helper ...
                  [2020-04-30 11:15:53.785] [LOG]    Module helper loaded: MMM-AlexaControl
                  [2020-04-30 11:15:53.786] [LOG]    handler helper in init
                  [2020-04-30 11:15:53.786] [LOG]    Module helper loaded: MMM-SleepWake
                  [2020-04-30 11:15:53.786] [LOG]    All module helpers loaded.
                  [2020-04-30 11:15:53.820] [LOG]    Starting server on port 8090 ... 
                  [2020-04-30 11:15:53.821] [INFO]   You're using a full whitelist configuration to allow for all IPs
                  [2020-04-30 11:15:53.823] [LOG]    Server started ...
                  [2020-04-30 11:15:53.823] [LOG]    Connecting socket for: MMM-Logging
                  [2020-04-30 11:15:53.824] [LOG]    Module helper started for MMM-Logging
                  [2020-04-30 11:15:53.824] [LOG]    Connecting socket for: MyCovid19
                  [2020-04-30 11:15:53.824] [LOG]    Starting node_helper for module: MyCovid19
                  [2020-04-30 11:15:53.824] [LOG]    path=/home/sam/MagicMirror/modules/MyCovid19
                  [2020-04-30 11:15:53.824] [LOG]    Connecting socket for: MMM-AlexaControl
                  [2020-04-30 11:15:53.824] [LOG]    MMM-AlexaControl helper, started...
                  [2020-04-30 11:15:53.824] [LOG]    Connecting socket for: MMM-SleepWake
                  [2020-04-30 11:15:53.825] [LOG]    handler helper in start
                  [2020-04-30 11:15:53.825] [LOG]    Sockets connected & modules started ...
                  [2020-04-30 11:15:53.906] [LOG]    Launching application.
                  [2020-04-30 11:15:53.928] [LOG]    setup for latent showing  // < --- from my module node_helper
                  [2020-04-30 11:15:54.487] [LOG]    requested file exists=modules/MyCovid19/states-rawdata-04-30-2020 sending back to module_13_MyCovid19_5731  // < --- from my module node_helper
                  [2020-04-30 11:15:54.490] [LOG]    requested file exists=modules/MyCovid19/countries-rawdata-04-30-2020 sending back to module_16_MyCovid19_7951  // < --- from my module node_helper
                  [2020-04-30 11:15:54.492] [LOG]    requested file exists=modules/MyCovid19/countries-rawdata-04-30-2020 sending back to module_14_MyCovid19_1721  // < --- from my module node_helper
                  [2020-04-30 11:15:54.493] [LOG]    requested file exists=modules/MyCovid19/countries-rawdata-04-30-2020 sending back to module_15_MyCovid19_91  // < --- from my module node_helper
                  [2020-04-30 11:15:54.498] [LOG]    requested file exists=modules/MyCovid19/countries-rawdata-04-30-2020 sending back to module_17_MyCovid19_2191  // < --- from my module node_helper
                  etc
                  

                  Sam

                  How to add modules

                  learning how to use browser developers window for css changes

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                  • PerlchampP Offline
                    Perlchamp
                    last edited by

                    ok, it’s slowly dawning on me, see little light at the end of the tunnel

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

                      @Perlchamp if u install the logging module I suggested, then it captures all the messages from the modulename.js in the browser and prints them to the terminal window log, which would be saved to the file as well.

                      Sam

                      How to add modules

                      learning how to use browser developers window for css changes

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

                        @sdetweil a node_helper has two built in functions (I have never useed init() or stop() for anything, but they are available)

                        start: when the helper is loaded
                        socketNotificationReceived, when the modulename.js sends a message to the helper

                        the helper has one useful function

                        sendSocketNotification , to send a message back to the modulename.js

                        everything else is all up to you

                        note that the modulename.js gets the config.js config:{} info for this module, NOT the node_helper… so if the node_helper needs to know (filenames, timings, ???) , the modulename.js has to send a message with the this.config info down to the helper, and the helper has to save it to use later

                        Sam

                        How to add modules

                        learning how to use browser developers window for css changes

                        1 Reply Last reply Reply Quote 0
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