feat: add version model

app/models/software.rb

@@ -1,3 +1,4 @@
 class Software < ApplicationRecord
+  has_many :versions
   validates :name, presence: true, uniqueness: true
 end

app/models/version.rb

@@ -0,0 +1,6 @@
+class Version < ApplicationRecord
+  belongs_to :software
+  validates :number, presence: true
+  validates :date, presence: true
+  validates :number, uniqueness: { scope: :software }
+end

app/views/softwares/show.html.erb

@@ -8,8 +8,14 @@
 <table class="uk-table uk-table-striped">
   <thead>
     <tr>
-      <th>Release</th>
+      <th>Version</th>
       <th>Date</th>
     </tr>
   </thead>
+<% @software.versions.order(date: :desc).each do |version| %>
+  <tr>
+    <td><%= version.number %></td>
+    <td><%= version.date.strftime('%Y-%m-%d') %></td>
+  </tr>
+<% end %>
 </table>

config/routes.rb

@@ -1,4 +1,4 @@
 Rails.application.routes.draw do
   root 'home#index'
-  resources 'softwares'
+  resources :softwares
 end

db/migrate/20180722183046_create_versions.rb

@@ -0,0 +1,11 @@
+class CreateVersions < ActiveRecord::Migration[5.2]
+  def change
+    create_table :versions do |t|
+      t.string :number, null: false
+      t.datetime :date, null: false
+      t.references :software, foreign_key: true
+
+      t.timestamps
+    end
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2018_07_22_072217) do
+ActiveRecord::Schema.define(version: 2018_07_22_183046) do
 
   create_table "softwares", force: :cascade do |t|
     t.string "name", null: false
@@ -19,4 +19,13 @@ ActiveRecord::Schema.define(version: 2018_07_22_072217) do
     t.datetime "updated_at", null: false
   end
 
+  create_table "versions", force: :cascade do |t|
+    t.string "number", null: false
+    t.datetime "date", null: false
+    t.integer "software_id"
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.index ["software_id"], name: "index_versions_on_software_id"
+  end
+
 end

test/controllers/softwares_controller_test.rb

@@ -48,5 +48,9 @@ class SoftwaresControllerTest < ActionDispatch::IntegrationTest
     assert_response :success
     assert_select 'title', 'Kaiho'
     assert_select 'h3', 'Ruby on Rails'
+    assert_select 'td', '1.0.0'
+    assert_select 'td', '2018-07-22'
+    assert_select 'td', '1.1.0'
+    assert_select 'td', '2018-12-22'
   end
 end

test/fixtures/versions.yml

@@ -0,0 +1,11 @@
+# Read about fixtures at http://api.rubyonrails.org/classes/ActiveRecord/FixtureSet.html
+
+one:
+  number: 1.0.0
+  date: 2018-07-22 20:30:46
+  software: two
+
+two:
+  number: 1.1.0
+  date: 2018-12-22 20:30:46
+  software: two

test/models/version_test.rb

@@ -0,0 +1,7 @@
+require 'test_helper'
+
+class VersionTest < ActiveSupport::TestCase
+  # test "the truth" do
+  #   assert true
+  # end
+end