read csv-data and put it in an array

Perlchamp

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

I open browser from PC to the mirror URL and do it there
I debug from my PC, ssh connected to pi, or I run MM on my PC… and debug there

how ?

sdetweil

@Perlchamp on MagicMirror, in config, set address:“0.0.0.0”,
And ipWhitelist:[],

Then u can connect to the mm url from anywhere in your house/office.
http://ipaddress:port

Then f12 or ctrl-shift-i on the browser keyboard to open the developers window.

Perlchamp

ok thank.
if i want to test

    readCSV: fs.readFile('birthdaylist.csv', 'utf8', function (err, data) {
	var dataArray = data.split(/\r?\n/);
	Log.log(dataArray);

or

readList: function() {
	var JFile=require('jfile');
	var myF=new JFile("MMM-birthday.txt");
	myF.lines // ["first line","second line"]

i have to do this in node_helper right? and first i have to require them and of course to install them … something i forgot ?

sdetweil

@Perlchamp Log.log is ONLY in the browser, but fs. Is not usable in browser

U can test it w node to make sure it works. Then for mm it has to be in node_helper

Install library, so that you CAN require

Perlchamp

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 …

how can i see the console.log statements in the browser, starting MM ?
did i enter the code in the right place?
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

sdetweil

@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)

Perlchamp

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.

sdetweil

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

Perlchamp

always my pleasure

sdetweil

@Perlchamp fixed