Merge pull request #1424 from thobach/develop

Allow to parse recurring calendar events where the start date is before 1900

CHANGELOG.md

@@ -20,6 +20,7 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 - Screenshot for the weather forecast module
 
 ### Fixed
+- Allow to parse recurring calendar events where the start date is before 1900
 - Fixed Polish translation for Single Update Info
 
 ### Updated

modules/default/calendar/README.md

@@ -1,7 +1,6 @@
 # Module: Calendar
 The `calendar` module is one of the default modules of the MagicMirror.
 This module displays events from a public .ical calendar. It can combine multiple calendars.
-Note that calendars may not contain any entry before 1st January 1970, otherwise the calendar won't be displayed and the module will crash.
 
 ## Using the module
 

modules/default/calendar/calendarfetcher.js

@@ -173,6 +173,14 @@ var CalendarFetcher = function(url, reloadInterval, excludedEvents, maximumEntri
 
 					if (typeof event.rrule != "undefined" && !isFacebookBirthday) {
 						var rule = event.rrule;
+
+						// can cause problems with e.g. birthdays before 1900
+						if(rule.origOptions && rule.origOptions.dtstart && rule.origOptions.dtstart.getFullYear() < 1900 ||
+							rule.options && rule.options.dtstart && rule.options.dtstart.getFullYear() < 1900){
+							rule.origOptions.dtstart.setYear(1900);
+							rule.options.dtstart.setYear(1900);
+						}
+
 						var dates = rule.between(today, future, true, limitFunction);
 
 						for (var d in dates) {

package.json

@@ -66,7 +66,7 @@
     "mocha-logger": "^1.0.6",
     "moment": "latest",
     "request": "^2.87.0",
-    "rrule-alt": "^2.2.7",
+    "rrule-alt": "^2.2.8",
     "simple-git": "^1.85.0",
     "socket.io": "^2.1.1",
     "valid-url": "latest",