Play with highstock

Gemfile

@@ -22,6 +22,7 @@ gem 'thin'
 gem 'rails-api'
 gem 'active_model_serializers', github: "rails-api/active_model_serializers"
 gem 'delayed_job_active_record'
+gem 'groupdate', git: 'https://github.com/mieko/groupdate.git', branch: 'sqlite3'
 
 group :development do
   gem 'sqlite3'

Gemfile.lock

@@ -5,6 +5,14 @@ GIT
     active_model_serializers (0.9.0.pre)
       activemodel (>= 3.2)
 
+GIT
+  remote: https://github.com/mieko/groupdate.git
+  revision: f75a3d47a27a7351998555a5bfe532a7be9248ed
+  branch: sqlite3
+  specs:
+    groupdate (0.1.6)
+      activerecord (>= 3.0.0)
+
 GEM
   remote: https://rubygems.org/
   specs:
@@ -212,6 +220,7 @@ DEPENDENCIES
   delayed_job_active_record
   factory_girl_rails
   figaro
+  groupdate!
   haml-rails
   html2haml
   jbuilder (~> 1.2)

app/controllers/stats_controller.rb

@@ -0,0 +1,6 @@
+class StatsController < ApplicationController
+  def index
+    @stories = Item.stories_per_hour_since(1.month.ago)
+    @comments = Item.comments_per_hour_since(1.month.ago)
+  end
+end

app/models/item.rb

@@ -140,10 +140,22 @@ def resolve_parent!
     self.save
   end
 
+  def self.stories_per_hour_since(ago)
+    per_hour_since(Item.story, ago)
+  end
+
+  def self.comments_per_hour_since(ago)
+    per_hour_since(Item.comment, ago)
+  end
+
   private
   def after_create_tasks
     self.delay(priority: 0).resolve_parent!  # 0 = top priority
     self.delay(priority: 1).crawl_thumbnail!
   end
 
+  def self.per_hour_since(item_type, ago)
+    Item.where(item_type_cd: item_type).where('created_at > ?', ago).group_by_hour(:created_at).count.map { |k,v| [k.is_a?(String) ? DateTime.parse(k) : k, v] }
+  end
+
 end

app/views/layouts/application.html.haml

@@ -25,6 +25,7 @@
       %ul.list-inline
         %li= link_to 'About', about_path
         %li= link_to 'Search', root_path
+        /%li= link_to 'Stats', stats_path
         %li= link_to 'API', api_path
         %li= link_to 'Cool Apps', cool_apps_path
         %li

app/views/stats/index.html.haml

@@ -0,0 +1,86 @@
+- content_for :head do
+  = javascript_include_tag "highstock"
+
+%h1
+  Stats
+  %span.text-mini.label.label-warning BETA
+
+%p WIP
+
+%h3 Activity per hour
+%div{id: 'stories_per_hour'}
+:javascript
+  $('#stories_per_hour').highcharts('StockChart', {
+    legend: {
+      enabled: true
+    },
+
+    credits : {
+      enabled : false
+    },
+
+    exporting : {
+      enabled : false
+    },
+
+    rangeSelector : {
+      enabled : false,
+    },
+
+    scrollbar : {
+      enabled : false
+    },
+
+    navigator : {
+      enabled : true,
+    },
+
+    xAxis: {
+      gridLineColor : '#eee',
+      labels: {
+        style : {
+          color: '#AAAAAC'
+        }
+      },
+      lineColor: '#E0E0E0',
+    },
+
+    yAxis: [
+      {
+        gridLineColor : '#eee',
+        labels: {
+          style : {
+            color: '#AAAAAC'
+          },
+          enabled : true
+        },
+        min: 0.0,
+      },
+      {
+        gridLineColor : '#eee',
+        labels: {
+          style : {
+            color: '#AAAAAC'
+          },
+          enabled : true
+        },
+        min: 0.0,
+        opposite: true
+      },
+    ],
+
+    series : [
+      {
+        name : '# Stories',
+        data : #{@stories.map { |v| [v[0].to_time.to_i * 1000, v[1]] }.inspect},
+        type : 'line'
+      },
+      {
+        name : '# Comments',
+        data : #{@comments.map { |v| [v[0].to_time.to_i * 1000, v[1]] }.inspect},
+        type : 'line',
+        yAxis: 1
+      }
+    ],
+  });
+

config/application.rb

@@ -19,5 +19,6 @@ class Application < Rails::Application
     # The default locale is :en and all translations from config/locales/*.rb,yml are auto loaded.
     # config.i18n.load_path += Dir[Rails.root.join('my', 'locales', '*.{rb,yml}').to_s]
     # config.i18n.default_locale = :de
+    config.assets.precompile += %w(highstock.js)
   end
 end

config/routes.rb

@@ -13,6 +13,7 @@
   get 'about' => 'pages#about'
   get 'api' => 'pages#api'
   get 'cool_apps' => 'pages#cool_apps'
+  get 'stats' => 'stats#index'
 
   root 'home#index'
 

test/controllers/stats_controller_test.rb

@@ -0,0 +1,9 @@
+require 'test_helper'
+
+class StatsControllerTest < ActionController::TestCase
+  test "should get index" do
+    get :index
+    assert_response :success
+  end
+
+end