From 601949aaf0d818bb8c2c8b250be53ce615b0ecb4 Mon Sep 17 00:00:00 2001
From: Marvin Frederickson <marvin.frederickson@gmail.com>
Date: Wed, 1 Mar 2017 09:09:49 -0900
Subject: [PATCH 1/2] closes #15 upgrade to turbolinks v5

---
 app/assets/javascripts/concerto_calendar/concerto_calendar.js | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/app/assets/javascripts/concerto_calendar/concerto_calendar.js b/app/assets/javascripts/concerto_calendar/concerto_calendar.js
index f24d3e2..51938ba 100644
--- a/app/assets/javascripts/concerto_calendar/concerto_calendar.js
+++ b/app/assets/javascripts/concerto_calendar/concerto_calendar.js
@@ -20,5 +20,4 @@ function attachHandlers() {
   $("input#calendar_config_end_date.datefield").datepicker();
 }
 
-$(document).ready(attachHandlers);
-$(document).on('page:change', attachHandlers);
+$(document).on('turbolinks:load', attachHandlers);

From 0fbb897cdb78a71f11a4febb64d4f2f1fcaf66ea Mon Sep 17 00:00:00 2001
From: Marvin Frederickson <marvin.frederickson@gmail.com>
Date: Wed, 1 Mar 2017 14:08:51 -0900
Subject: [PATCH 2/2] isolate namespace and load on ready

---
 .../concerto_calendar/concerto_calendar.js    | 28 +++++++++++++------
 1 file changed, 19 insertions(+), 9 deletions(-)

diff --git a/app/assets/javascripts/concerto_calendar/concerto_calendar.js b/app/assets/javascripts/concerto_calendar/concerto_calendar.js
index 51938ba..5d42975 100644
--- a/app/assets/javascripts/concerto_calendar/concerto_calendar.js
+++ b/app/assets/javascripts/concerto_calendar/concerto_calendar.js
@@ -1,7 +1,7 @@
-function attachHandlers() {
-  $('select#calendar_config_calendar_source').on('change', revealRelevantFields);
+var ConcertoCalendar = {
+  _initialized: false,
 
-  function revealRelevantFields() {
+  revealRelevantFields: function () {
     var vendor = $('select#calendar_config_calendar_source').val();
     if (vendor == 'google') {
       $('input#calendar_config_api_key').closest('div.clearfix').show();
@@ -12,12 +12,22 @@ function attachHandlers() {
       $('input#calendar_config_calendar_id').closest('div.clearfix').hide();
       $('input#calendar_config_calendar_url').closest('div.clearfix').show();
     }
-  }
+  },
 
-  revealRelevantFields();
+  initHandlers: function () {
+    if (ConcertoCalendar._initialized) {
+      // console.debug('already initialized Calendar handlers');
+    } else {
+      // console.debug('initializing Calendar Handlers');
+      $('select#calendar_config_calendar_source').on('change', ConcertoCalendar.revealRelevantFields);
+      ConcertoCalendar.revealRelevantFields();
 
-  $("input#calendar_config_start_date.datefield").datepicker();
-  $("input#calendar_config_end_date.datefield").datepicker();
-}
+      $("input#calendar_config_start_date.datefield").datepicker();
+      $("input#calendar_config_end_date.datefield").datepicker();
+      ConcertoCalendar._initialized = true;
+    }
+  }
+};
 
-$(document).on('turbolinks:load', attachHandlers);
+$(document).ready(ConcertoCalendar.initHandlers);
+$(document).on('turbolinks:load', ConcertoCalendar.initHandlers);