Add listing and showing of old versions

app/assets/javascripts/admin/versions.coffee

@@ -0,0 +1,3 @@
+# Place all the behaviors and hooks related to the matching controller here.
+# All this logic will automatically be available in application.js.
+# You can use CoffeeScript in this file: http://coffeescript.org/

app/assets/stylesheets/admin/versions.scss

@@ -0,0 +1,3 @@
+// Place all the styles related to the Admin::Versions controller here.
+// They will automatically be included in application.css.
+// You can use Sass (SCSS) here: http://sass-lang.com/

app/controllers/admin/cards_controller.rb

@@ -32,6 +32,8 @@ class Admin::CardsController < Admin::BaseController
 
   def edit
     authorize @card
+
+    @versions = @card.versions
   end
 
   def update

app/controllers/admin/versions_controller.rb

@@ -0,0 +1,16 @@
+class Admin::VersionsController < Admin::BaseController
+  before_action :set_version, only: [:show]
+
+  def show
+    type = @version.class.to_s.underscore
+    instance_variable_set('@' + type, @version)
+
+    render "admin/#{type.pluralize}/show"
+  end
+
+  private
+
+  def set_version
+    @version = PaperTrail::Version.find(params[:id]).reify
+  end
+end

app/helpers/admin/versions_helper.rb

@@ -0,0 +1,2 @@
+module Admin::VersionsHelper
+end

app/views/admin/cards/edit.html.slim

@@ -1 +1,3 @@
 == render 'form'
+
+== render 'admin/versions/list', versions: @versions

app/views/admin/cards/show.html.slim

@@ -0,0 +1,42 @@
+.row
+  .col-md-4
+    strong Game ID Number: 
+    = @card.gameid
+  .col-md-4
+    strong Title: 
+    = @card.title
+  .col-md-4
+    strong Character: 
+    = @card.character.name
+.row
+  .col-md-4
+    strong Rarity: 
+    = @card.rarity.name
+  .col-md-4
+    strong Type: 
+    = @card.type.name
+  .col-md-4
+    strong Awaken Type: 
+    = @card.awaken_type.name
+.row
+  .col-md-6
+    strong Leader Skill: 
+    = @card.leader_skill.description
+  .col-md-6
+    strong Passive Skill: 
+    = @card.passive_skill.name
+.row
+  .col-md-12
+    strong Super Attack: 
+    = "#{@card.super_attack.name} - #{@card.super_attack.description}"
+.row
+  .col-md-6
+    strong Dokkan Card: 
+    - if @card.dokkan_card
+      = @card.dokkan_card.full_name
+.row
+  .col-md-12
+    strong Links: 
+    ul
+    - @card.links.each do |link|
+      li= link.name

app/views/admin/versions/_list.html.slim

@@ -0,0 +1,16 @@
+.row
+  .col-md-12
+    table.table.table-striped.table-hover
+      thead
+        tr
+          th ID
+          th Event
+          th Date
+          th Modified By
+      tbody
+        - versions.each do |version|
+          tr
+            td= link_to version.id, admin_version_path(version)
+            td= version.event
+            td= version.created_at
+            td= User.find(version.version_author).nickname

config/routes.rb

@@ -22,6 +22,7 @@ Rails.application.routes.draw do
     resources :super_attacks
     resources :types
     resources :users, except: [:new, :create]
+    resources :versions, only: [:show]
   end
 
   namespace :api do