refactors stats and optimizes js

JS libraries for stats (d3, c3, etc.) only load now when needed (stats/show)

app/assets/javascripts/application.js

@@ -15,21 +15,32 @@
 //= require foundation
 //= require turbolinks
 //= require ckeditor/init
+//= require_directory ./ckeditor
 //= require social-share-button
 //= require initial
 //= require ahoy
-//= require d3
-//= require c3
-//= require c3ext
 //= require app
-//= require_tree .
+//= require check_all_none
+//= require comments
+//= require dropdown
+//= require ie_alert
+//= require location_changer
+//= require moderator_comment
+//= require moderator_debates
+//= require moderator_proposals
+//= require prevent_double_submission
+//= require rem.min
+//= require respond.min
+//= require tags
+//= require users
+//= require votes
+
 
 var initialize_modules = function() {
   App.Comments.initialize();
   App.Users.initialize();
   App.Votes.initialize();
   App.Tags.initialize();
-  App.Stats.initialize();
   App.Dropdown.initialize();
   App.LocationChanger.initialize();
   App.CheckAllNone.initialize();

app/assets/javascripts/stat_graphs.js

@@ -0,0 +1,15 @@
+//= require d3
+//= require c3
+//= require c3ext
+//= require stats
+
+var initialize_stats_modules = function() {
+  App.Stats.initialize();
+};
+
+$(function(){
+
+  $(document).ready(initialize_stats_modules);
+  $(document).on('page:load', initialize_stats_modules);
+  $(document).on('ajax:complete', initialize_stats_modules);
+});

app/controllers/admin/stats_controller.rb

@@ -0,0 +1,7 @@
+class Admin::StatsController < Admin::BaseController
+
+  def show
+    @event_types = Ahoy::Event.group(:name).count
+  end
+
+end

app/controllers/stats_controller.rb

@@ -1,14 +0,0 @@
-class StatsController < ApplicationController
-  before_action :verify_administrator
-  skip_authorization_check
-
-  def show
-    @event_types = Ahoy::Event.group(:name).count
-  end
-
-  private
-
-    def verify_administrator
-      raise CanCan::AccessDenied unless current_user.try(:administrator?)
-    end
-end

app/views/admin/_menu.html.erb

@@ -75,7 +75,7 @@
     </li>
 
     <li <%= "class=active" if controller_name == "stats" %>>
-      <%= link_to stats_path do %>
+      <%= link_to admin_stats_path do %>
         <i class="icon-stats"></i>
         <%= t("admin.menu.stats") %>
       <% end %>

app/views/admin/stats/show.html.erb

@@ -1,3 +1,6 @@
+<% content_for :head do %>
+  <%= javascript_include_tag "stat_graphs", 'data-turbolinks-track' => true %>
+<% end %>
 <div class="stats row-full">
   <div class="row">
     <div class="small-12 column">

app/views/layouts/admin.html.erb

@@ -9,6 +9,7 @@
     <%= stylesheet_link_tag    "application" %>
     <%= javascript_include_tag "vendor/modernizr" %>
     <%= javascript_include_tag "application", 'data-turbolinks-track' => true %>
+    <%= content_for :head %>
     <%= csrf_meta_tags %>
     <%= favicon_link_tag "favicon.ico" %>
   </head>

config/initializers/assets.rb

@@ -10,4 +10,5 @@ Rails.application.config.assets.version = '1.0'
 # application.js, application.css, and all non-JS/CSS in app/assets folder are already added.
 # Rails.application.config.assets.precompile += %w( search.js )
 Rails.application.config.assets.precompile += %w( ckeditor/* )
-Rails.application.config.assets.precompile += %w( rem.min.js, respond.min.js )
+Rails.application.config.assets.precompile += %w( rem.min.js, respond.min.js )
+Rails.application.config.assets.precompile += %w( stat_graphs.js )

config/routes.rb

@@ -114,6 +114,7 @@ Rails.application.routes.draw do
     end
 
     resource :activity, controller: :activity, only: :show
+    resource :stats, only: :show
   end
 
   namespace :moderation do
@@ -154,8 +155,6 @@ Rails.application.routes.draw do
     end
   end
 
-  resource :stats, only: [:show]
-
   namespace :api do
     resource :stats, only: [:show]
   end

spec/features/stats_spec.rb

@@ -13,7 +13,7 @@ feature 'Stats' do
     confirm_phone
 
     login_as(admin.user)
-    visit stats_path
+    visit admin_stats_path
 
     expect(page).to have_content "Level 2 User (1)"
   end