MMM-Domoticz Cannot read property '0' of undefined

[MisterT]

Hi everybody
I update my magic mirror from 2.6 to 2.8 and also npm to the latest version and now i have error on console (ctrl+ maj+i) with MMM-Domoticz:

domoticz.js:150 Uncaught TypeError: Cannot read property ‘0’ of undefined
at Class.processJson (domoticz.js:150)
at XMLHttpRequest.domoRequest.onreadystatechange (domoticz.js:128)

you see below the domoticz.js short program:

line 115: updateDomo: function() {
		var i = 0;
		for (var c in this.sensors) {
			//console.log("this is c: " + c);
			var sensor = this.sensors[c];
			var url = this.config.apiBase + ":" + this.config.apiPort + "/json.htm?type=devices&rid="  + sensor.idx;
			var self = this;

			var domoRequest = new XMLHttpRequest();
			domoRequest.open("GET", url, true);
			domoRequest.onreadystatechange = function() {
				if (this.readyState === 4) {
					if (this.status === 200) {
						line 128: self.processJson(JSON.parse(this.response));
						//console.log("Loaded data");
					} else {
						Log.error(self.name + ": Could not load data.");
						//console.log("Did not load data");
					}
				}
			};
			domoRequest.send();
			i++;
		}
	},

	processJson: function(data) {
		//console.log("****Parsing data: " + c + " " + data.result[0].Name);
		if (!data) {
			// Did not receive usable new data.
			// Maybe this needs a better check?
			return;
		}
		for (var c in this.sensors) {
			var sensor = this.sensors[c];
			line 150: if(sensor.idx == data.result[0].idx){
				this.sensors[c].sname = data.result[0].Name;
				this.sensors[c].status = data.result[0].Data;
				this.sensors[c].type = data.result[0].Type;
			}
		}

and also i have also a problem with console.log (to mm2.6 also) the error message is:

console.log is not a function.

I post this because i’m noob in js script. My intenet searching for this problem is a failure.

Can anyboby help me please?
thanls for next answers

[sdetweil]

@MisterT said in MMM-Domoticz Cannot read property '0' of undefined:

console.log is not a function.

in the module.js, logging is done with the Log function, not console…

so, change any console.log to Log.log

[sdetweil]

@MisterT said in MMM-Domoticz Cannot read property '0' of undefined:

  	var sensor = this.sensors[c];

this is not set correctly if called in the domoRequest.onreadystatechange = function() {}
u should be using self… ‘this’ is context sensitive, means ‘inside this function’

[MisterT]

@sdetweil said in MMM-Domoticz Cannot read property '0' of undefined:

this is not set correctly if called in the domoRequest.onreadystatechange = function() {}
u should be using self… ‘this’ is context sensitive, means ‘inside this function’

hi @sdetweil, i replace conole.log by Log.log and now i have error in the console

Could not load data.
refered to line 131.

Sorry but i don’t unerstand your last post about this and self. Can you show me the good syntax or do you need the entire program?

thanks for your help

[sdetweil]

@MisterT change this line

Log.error(self.name + ": Could not load data.");

to this

Log.error(self.name + ": Could not load data. request status="+this.status);

this will show the error return code on the api url request for the data

[MisterT]

hi @sdetweil , sorry for this late answer, i’m very busy at this moment

I applied your programe line and now, in the console i have:

:8080/modules/fabio/domoticz//domoticz.js:142 Uncaught TypeError: Cannot read property ‘0’ of undefined
at Class.processJson (:8080/modules/fabio/domoticz//domoticz.js:142)
at XMLHttpRequest.domoRequest.onreadystatechange (:8080/modules/fabio/domoticz//domoticz.js:128)

and this:

domoticz.js:142 Uncaught TypeError: Cannot read property ‘0’ of undefined
at Class.processJson (domoticz.js:142)
at XMLHttpRequest.domoRequest.onreadystatechange (domoticz.js:128)
processJson @ domoticz.js:142
domoRequest.onreadystatechange @ domoticz.js:128
XMLHttpRequest.send (async)
updateDomo @ domoticz.js:136
(anonymous) @ domoticz.js:170

and the js script below

/* global Module */

/* Magic Mirror
 * Module: Domoticz
 *
 * By Mathias Arvidsson
 */

Module.register("domoticz",{

	defaults: {
		units: config.units,
		updateInterval: 50,
		animationSpeed: 0,
		timeFormat: config.timeFormat,
		lang: config.language,

		initialLoadDelay: 0,
		retryDelay: 2500,

		apiBase: "http://1xx.1xx.x.xx", // IP domoticz 
		apiPort: "xxxx",				 // Port
		sensors: [
			{
				idx: "1",
				symbolon: "fa fa-user",
				symboloff: "fa fa-user-o",
				hiddenon: false,
				hiddenoff: false,
				customTitle: "",
			},
		],
	},

	firstEvent: false,
	getStyles: function() {
	    return ['font-awesome.css'];
	},
	// Define required scripts.
	getScripts: function() {
		return ["moment.js"];
	},



	// Define start sequence.
	start: function() {
		Log.info("Starting module: " + this.name);

		// Set locale.
		moment.locale(config.language);

		this.loaded = false;
		this.status1 = false;
		this.title = "Loading...";
		this.scheduleUpdate(this.config.initialLoadDelay);
		this.sensors = [];
		for (var c in this.config.sensors) {
			var sensor = this.config.sensors[c];
			var newSensor = {idx:sensor.idx, symbolon:sensor.symbolon, symboloff:sensor.symboloff, hiddenon:sensor.hiddenon, hiddenoff:sensor.hiddenoff, customTitle:sensor.customTitle, status:"", sname:"",type:""};
			Log.log(sensor.idx);
			this.sensors.push(newSensor);
		}
Log.log(this.sensors);
	},



	// Override dom generator.
	getDom: function() {
		var wrapper = document.createElement("div");

		if (!this.loaded) {
			wrapper.innerHTML = "Loading...";
			wrapper.className = "dimmed light small";
			return wrapper;
		}
		var tableWrap = document.createElement("table");
		tableWrap.className = "small";

		for (var c in this.sensors) {
			var sensor = this.sensors[c];
			if((sensor.status=="On" && sensor.hiddenon)||(sensor.status=="Off" && sensor.hiddenoff)) continue;
			var sensorWrapper = document.createElement("tr");
			sensorWrapper.className = "normal";

			var symbolTD = document.createElement('td');
			symbolTD.className = "symbol";
			var symbol = document.createElement('i');
			var symbolClass = sensor.symboloff
			if(sensor.status=="On") symbolClass = sensor.symbolon
			symbol.className = symbolClass;
			symbolTD.appendChild(symbol);
			sensorWrapper.appendChild(symbolTD);

			var titleTD = document.createElement('td');
			titleTD.className = "title bright";
			if(sensor.status=="Off") titleTD.className = "title light";
			titleTD.innerHTML = sensor.sname;
			if(typeof sensor.customTitle !== 'undefined') titleTD.innerHTML = sensor.customTitle;
			sensorWrapper.appendChild(titleTD);

			var statusTD = document.createElement('td');
			statusTD.className = "time light";
			statusTD.innerHTML = sensor.status;
			sensorWrapper.appendChild(statusTD);

			tableWrap.appendChild(sensorWrapper);
		}
		wrapper.appendChild(tableWrap);
		return wrapper;
	},


	updateDomo: function() {
		var i = 0;
		for (var c in this.sensors) {
			Log.log("this is c: " + c);
			var sensor = this.sensors[c];
			var url = this.config.apiBase + ":" + this.config.apiPort + "/json.htm?type=devices&rid="  + sensor.idx;
			var self = this;

			var domoRequest = new XMLHttpRequest();
			domoRequest.open("GET", url, true);
			domoRequest.onreadystatechange = function() {
				if (this.readyState === 4) {
					if (this.status === 200) {
						self.processJson(JSON.parse(this.response));
						Log.log("Loaded data");
					} else {
						Log.error(self.name + ": Could not load data. request status="+this.status);
						Log.log("Did not load data");
					}
				}
			};
			domoRequest.send();
			i++;
		}
	},

	processJson: function(data) {
		Log.log("****Parsing data: " + c + " " + data.result[0].Name);
		if (!data) {
			// Did not receive usable new data.
			// Maybe this needs a better check?
			return;
		}
		for (var c in this.sensors) {
			var sensor = this.sensors[c];
			if(sensor.idx == data.result[0].idx){
				this.sensors[c].sname = data.result[0].Name;
				this.sensors[c].status = data.result[0].Data;
				this.sensors[c].type = data.result[0].Type;
			}
		}
		
		this.loaded = true;
		this.updateDom(this.config.animationSpeed);
	},

	scheduleUpdate: function(delay) {
		Log.log("Updating..");
		var nextLoad = this.config.updateInterval;
		if (typeof delay !== "undefined" && delay >= 0) {
			nextLoad = delay;
		}

		var self = this;
		setInterval(function() {
			self.updateDomo();
		}, 500 );
	}
});

for your information, the module seems to work but i have this error.

Have you a solution?
thanks a lot

[sdetweil]

@MisterT could you email the module config (from config.js) to my email same userid as here on gmail…

[sdetweil]

@sdetweil there is also a newer module (2 months) same name from another user

https://github.com/SpoturDeal/MMM-Domoticz

this module (M-Arvidsson) hasn’t been updated in 3 yrs

[Nilnik]

@MisterT I have the same module domoticz (M.Arvidsson) and it works fine for me. I can seei n your domoticz.js that ievery row with log.log … , I have console.log. Maybe thats the problem.

[MisterT]

@sdetweil i send you a personal mail with my domoticz module and config.js.
Thanks for your help