Merge branch 'statistics_controller' into 'master'

Statistics controller

See merge request !370

app/controllers/v1/statistics_controller.rb

+class V1::StatisticsController < ApplicationController
+
+  def index
+    statistics = {:count => count_learning_objects, :month_publications => month_publications, :month_downloads => month_downloads}
+    render json: statistics
+  end
+
+  private
+    def count_learning_objects
+      LearningObject.all.count
+    end
+
+    def month_publications
+      LearningObject.where('extract (month from published_at) = ? and extract (year from published_at) = ?', Time.now.month, Time.now.year).count
+    end
+
+    def month_downloads
+    end
+end

config/routes.rb

 Rails.application.routes.draw do
+
   # require 'sidekiq/web'
   # mount Sidekiq::Web, at: '/sidekiq'
 
@@ -141,6 +142,7 @@ Rails.application.routes.draw do
     resources :ratings, except: [:new, :edit]
     resources :contacts
     resources :suggestions
+    resources :statistics, only: [:index]
 
     post '/package', to: 'packages#link'
     get '/subjects', to: 'subjects#index'

spec/controllers/statistics_controller_spec.rb

+require 'rails_helper'
+
+RSpec.describe StatisticsController, type: :controller do
+
+  describe "GET #count_learning_objects" do
+    it "returns http success" do
+      get :count_learning_objects
+      expect(response).to have_http_status(:success)
+    end
+  end
+
+  describe "GET #month_publications" do
+    it "returns http success" do
+      get :month_publications
+      expect(response).to have_http_status(:success)
+    end
+  end
+
+  describe "GET #month_downloads" do
+    it "returns http success" do
+      get :month_downloads
+      expect(response).to have_http_status(:success)
+    end
+  end
+
+end