FEATURE: automatically close a poll on a given date and time

plugins/poll/assets/javascripts/initializers/extend-for-poll.js.es6

@@ -22,6 +22,13 @@ function initializePolls(api) {
     }
   });
 
+  let _glued = [];
+  let _interval = null;
+
+  function rerender() {
+    _glued.forEach(g => g.queueRerender());
+  }
+
   api.modifyClass('model:post', {
     _polls: null,
     pollsObject: null,
@@ -41,12 +48,12 @@ function initializePolls(api) {
           }
         });
         this.set("pollsObject", this._polls);
-        _glued.forEach(g => g.queueRerender());
+        rerender();
       }
     }
   });
 
-  const _glued = [];
+
   function attachPolls($elem, helper) {
     const $polls = $('.poll', $elem);
     if (!$polls.length) { return; }
@@ -60,6 +67,8 @@ function initializePolls(api) {
     const polls = post.get("pollsObject");
     if (!polls) { return; }
 
+    _interval = _interval || setInterval(rerender, 30000);
+
     $polls.each((idx, pollElem) => {
       const $poll = $(pollElem);
       const pollName = $poll.data("poll-name");
@@ -81,7 +90,13 @@ function initializePolls(api) {
   }
 
   function cleanUpPolls() {
+    if (_interval) {
+      clearInterval(_interval);
+      _interval = null;
+    }
+
     _glued.forEach(g => g.cleanUp());
+    _glued = [];
   }
 
   api.includePostAttributes("polls", "polls_votes");