- FEATURE: revamped poll plugin

- add User.staff scope
- inject MessageBus into Ember views (so it can be used by the poll plugin)
- REFACTOR: use more accurate is_first_post? method instead of post_number == 1
- FEATURE: add support for JSON-typed custom fields
- FEATURE: allow plugins to add validation
- FEATURE: add post_custom_fields to PostSerializer
- FEATURE: allow plugins to whitelist post_custom_fields
- FIX: don't bump when post did not save successfully
- FEATURE: polls are supported in any post
- FEATURE: allow for multiple polls in the same post
- FEATURE: multiple choice polls
- FEATURE: rating polls
- FEATURE: new dialect allowing users to preview polls in the composer

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

@@ -0,0 +1,65 @@
+import PostView from "discourse/views/post";
+
+function createPollView(container, post, poll, vote) {
+  const controller = container.lookup("controller:poll", { singleton: false }),
+        view = container.lookup("view:poll");
+
+  controller.set("vote", vote);
+
+  controller.setProperties({
+    model: Em.Object.create(poll),
+    post: post,
+  });
+
+  view.set("controller", controller);
+
+  return view;
+}
+
+export default {
+  name: "extend-for-poll",
+
+  initialize(container) {
+
+    // overwrite polls
+    PostView.reopen({
+      _createPollViews: function($post) {
+        const self = this,
+              post = this.get("post"),
+              polls = post.get("polls"),
+              votes = post.get("polls_votes") || {};
+
+        // don't even bother when there's no poll
+        if (!polls) { return; }
+
+        const pollViews = {};
+
+        // iterate over all polls
+        $(".poll", $post).each(function() {
+          const $div = $("<div>"),
+                $poll = $(this),
+                pollName = $poll.data("poll-name"),
+                pollView = createPollView(container, post, polls[pollName], votes[pollName]);
+
+          $poll.replaceWith($div);
+          pollView.constructor.renderer.replaceIn(pollView, $div[0]);
+          pollViews[pollName] = pollView;
+        });
+
+        this.messageBus.subscribe("/polls/" + this.get("post.id"), results => {
+          pollViews[results.poll.name].get("controller").set("model", Em.Object.create(results.poll));
+        });
+
+        this.set("pollViews", pollViews);
+      }.on("postViewInserted"),
+
+      _cleanUpPollViews: function() {
+        this.messageBus.unsubscribe("/polls/*");
+
+        if (this.get("pollViews")) {
+          _.forEach(this.get("pollViews"), v => v.destroy());
+        }
+      }.on("willClearRender")
+    });
+  }
+}