Sort the badges on the user profile page

Also clean up UserBadgesController so it isn't doing two things in one
method

app/assets/javascripts/discourse/controllers/user-badges.js.es6

@@ -0,0 +1,3 @@
+export default Ember.ArrayController.extend({
+  sortProperties: ['grouping_position', 'badge.badgeType.id', 'badge.name', 'badge.id']
+});

app/assets/javascripts/discourse/models/user_badge.js

@@ -93,9 +93,9 @@ Discourse.UserBadge.reopenClass({
     @returns {Promise} a promise that resolves to an array of `Discourse.UserBadge`.
   **/
   findByUsername: function(username, options) {
-    var url = "/user_badges.json?username=" + username;
+    var url = "/users/" + username + "/badges_json.json";
     if (options && options.grouped) {
-      url += "&grouped=true";
+      url += "?grouped=true";
     }
     return Discourse.ajax(url).then(function(json) {
       return Discourse.UserBadge.createFromJson(json);

app/controllers/user_badges_controller.rb

@@ -1,27 +1,32 @@
 class UserBadgesController < ApplicationController
   def index
-    params.permit(:username).permit(:granted_before)
+    params.permit [:granted_before, :offset]
 
-    if params[:username]
+    badge = fetch_badge_from_params
-      user = fetch_user_from_params
+    user_badges = badge.user_badges.order('granted_at DESC, id DESC').limit(96)
-      user_badges = user.user_badges
+    user_badges = user_badges.includes(:user, :granted_by, badge: :badge_type, post: :topic)
-    else
-      badge = fetch_badge_from_params
-      user_badges = badge.user_badges.order('granted_at DESC, id DESC').limit(96)
-    end
 
     if offset = params[:offset]
       user_badges = user_badges.offset(offset.to_i)
     end
 
-    user_badges = user_badges.includes(:user, :granted_by, badge: :badge_type, post: :topic)
+    render_serialized(user_badges, UserBadgeSerializer, root: "user_badges")
+  end
+
+  def username
+    params.permit [:grouped]
+
+    user = fetch_user_from_params
+    user_badges = user.user_badges
 
     if params[:grouped]
       user_badges = user_badges.group(:badge_id)
                                .select(UserBadge.attribute_names.map {|x| "MAX(#{x}) as #{x}" }, 'COUNT(*) as count')
     end
 
-    render_serialized(user_badges, UserBadgeSerializer, root: "user_badges")
+    user_badges = user_badges.includes(badge: [:badge_grouping, :badge_type])
+
+    render_serialized(user_badges, BasicUserBadgeSerializer, root: "user_badges")
   end
 
   def create

app/serializers/basic_user_badge_serializer.rb

@@ -0,0 +1,13 @@
+class BasicUserBadgeSerializer < ApplicationSerializer
+  attributes :id, :granted_at, :count, :grouping_position
+
+  has_one :badge
+
+  def include_count?
+    object.respond_to? :count
+  end
+
+  def grouping_position
+    object.badge.badge_grouping.position
+  end
+end

config/routes.rb

@@ -235,6 +235,7 @@ Discourse::Application.routes.draw do
   get "users/by-external/:external_id" => "users#show"
   get "users/:username/flagged-posts" => "users#show", constraints: {username: USERNAME_ROUTE_FORMAT}
   get "users/:username/deleted-posts" => "users#show", constraints: {username: USERNAME_ROUTE_FORMAT}
+  get "users/:username/badges_json" => "user_badges#username"
 
   post "user_avatar/:username/refresh_gravatar" => "user_avatars#refresh_gravatar"
   get "letter_avatar/:username/:size/:version.png" => "user_avatars#show_letter",