add: competitions

app/controllers/home/competitions_controller.rb

@@ -0,0 +1,9 @@
+class Home::CompetitionsController < ApplicationController
+
+  def index
+    @competitions = Competition.active.order(start_time: :desc).limit(3)
+    if @competitions.size < 3 
+      @competitions += Competition.archived.order(start_time: :desc).limit(3-@competitions.size)
+    end
+  end
+end

app/controllers/home/platform_statistics_controller.rb

@@ -1,4 +1,4 @@
-class PlatformStatisticsController < ApplicationController
+class Home::PlatformStatisticsController < ApplicationController
 
   def index
     @platform_statistic = PlatformStatistic.data 

app/models/competition.rb

@@ -0,0 +1,4 @@
+class Competition < ApplicationRecord
+
+  enum status: {archived: 0, active: 1}
+end

app/views/home/competitions/index.json.jbuilder

@@ -0,0 +1,7 @@
+json.competitions do
+  json.array! @competitions.each do |competition|
+    json.(competition, :id, :title, :content)
+    json.start_time format_time(competition.start_time)
+    json.end_time format_time(competition.end_time)
+  end
+end

config/routes.rb

@@ -102,7 +102,10 @@ Rails.application.routes.draw do
         get :template_file
       end
     end
-    resources :platform_statistics, only: [:index] 
+    namespace :home do 
+      resources :platform_statistics, only: [:index] 
+      resources :competitions, only:[:index]
+    end
     get 'home/index'
     get 'home/search'
     get 'main/first_stamp'