Merge branch 'develop' into 'master'

Develop

See merge request !40

coffee_scale/templates/coffee.html

@@ -9,7 +9,7 @@
 <meta http-equiv="expires" content="Tue, 01 Jan 1980 1:00:00 GMT" />
 <meta http-equiv="pragma" content="no-cache" />
 <meta name="viewport" content="width=device-width, initial-scale=1">
-<script type="text/javascript" src="https://code.jquery.com/jquery-2.1.4.min.js"></script>
+<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
 <style>
 body {
   background-color: white;
@@ -140,7 +140,6 @@ var brewtext = "";
 
 $(document).ready(function(){
  $('#text').bind("DOMSubtreeModified", resize);
- fetchdata();
  updateTime();
  setInterval(updateTime,1000);
  formatBrewTime();
@@ -151,27 +150,31 @@ $(window).resize(resize);
 
 var defaultBackoffTime = 1000;
 var modified = 0;
-function fetchdata(hxr, status){
+
+
+
+function fetchdata(data, status){
   var backoffTime = defaultBackoffTime;
   modified = 1;
-  if(typeof status !== 'undefined'){
-    if(status == "success"){
+  if (typeof status !== 'undefined'){
+    if (status == "success"){
       backoffTime = defaultBackoffTime;
-      parseData(hxr.responseText);
+      parseData(data);
     }
-    else if(status == "error"){
+    else if (status == "error"){
       backoffTime *= 2;
       modified = 0
-      setTimeout(fetchdata, backoffTime);
       handleError();
       return;
     }
   }
-  setTimeout(function() {
-    $.ajax({cache: false, ifModified: modified, url: '/coffee/cups', complete: fetchdata, timeout:120000});
-  }, 2000);
 }
 
+$.getJSON("/coffee/cups", fetchdata);
+setInterval(function() {
+  $.getJSON("/coffee/cups", fetchdata);
+}, 2000);
+
 function formatBrewTime(){
   if(!brewtext && lastBrew instanceof Date){
     var now = new Date();
@@ -189,8 +192,7 @@ function handleError(){
   setData("?",0,0,Number.MAX_VALUE,Number.MAX_VALUE);
 }
 
-function parseData(string) {
-  var data = JSON.parse(string);
+function parseData(data) {
   if (data) {
     var date = new Date(data.date);
     lastBrew = new Date(data.last_brew);

coffee_scale/views.py

@@ -4,6 +4,8 @@ from django.http import JsonResponse
 import datetime
 from .mqtt import get_latest
 
+import coffee_scale.mqtt  # somehow this is needed
+
 
 def get_cups_from_weight(weight):
     if not weight:
@@ -19,6 +21,7 @@ def get_cups_from_weight(weight):
     if cups > 10:
         cups = 10
 
+    print("cups: ", cups, "weight: ", weight)
     return cups