Feature/PapertrailVersioningPapyrus

app/controllers/papyrus/admin/templates_controller.rb

@@ -6,6 +6,7 @@ module Papyrus
   module Admin
     class TemplatesController < ApplicationAdminController
       before_action :set_objects, except: [:index]
+      before_action :set_template_and_version, only: [:rollback]
 
       def index; end
 
@@ -31,6 +32,7 @@ def show
       def update
         @template = Papyrus::Template.visible.find(params[:id])
         @template.update(template_params)
+        PaperTrail::Version.where('created_at < ?', 1.year.ago).delete_all
         respond_with :admin, @template
       end
 
@@ -46,8 +48,19 @@ def purge_attachment
         attachment.purge if attachment
       end
 
+      def rollback
+        reverted_template = @version.reify
+        @template.update(reverted_template.attributes)
+        respond_with :admin, @template
+      end
+
       private
 
+      def set_template_and_version
+        @template = Papyrus::Template.visible.find(params[:id])
+        @version = @template.versions.find(params[:version_id])
+      end
+
       def set_objects; end
 
       def template_params

app/javascript/papyrus/controllers/paper_trail_controller.js

@@ -0,0 +1,34 @@
+import { Controller } from "@hotwired/stimulus";
+
+export default class extends Controller {
+  static targets = ["diffContainer", "dialog"];
+
+
+  toggle(event) {
+
+    const button = event.currentTarget;
+    const currentRow = button.closest("tr"); 
+    const diffContainer = currentRow.nextElementSibling; 
+
+    if (diffContainer) {
+      diffContainer.classList.toggle("hidden");
+    }
+  }
+
+  show(event) {
+    event.preventDefault();
+    const button = event.currentTarget;
+    const versionId = button.dataset.versionId; 
+    const dialog = document.getElementById(`rollback-dialog-${versionId}`); 
+
+    if (dialog) {
+      dialog.classList.toggle("hidden");
+    } else {
+      console.error(`Dialog for version ${versionId} not found!`);
+    }
+  }
+
+
+
+
+}

app/models/papyrus/template.rb

@@ -1,5 +1,8 @@
 module Papyrus
   class Template < ApplicationRecord
+
+    has_paper_trail if defined?(PaperTrail)
+
     KINDS = [%w[PDF pdf], %w[Liquid liquid]].freeze
 
     has_many :papers

app/views/papyrus/_paper_trail.html.slim

@@ -0,0 +1,77 @@
+- if defined?(PaperTrail) && @template.versions.present?
+  - current_version = YAML.dump(@template.attributes)
+  - previous_version = @template.versions.last.reify ? YAML.dump(@template.versions.last.reify.attributes) : @template.versions.last.object
+
+  - diff = Diffy::SplitDiff.new(previous_version, current_version, format: :html)
+
+  ruby:
+    rows = []
+    rows << [
+              @template.versions.last&.id + 1, 
+              @template.versions.last.created_at.strftime('%Y-%m-%d %H:%M:%S'),
+              User.find(@template.paper_trail.originator).email,
+
+              diff.left.html_safe,
+              diff.right.html_safe,
+              @template.versions.last
+            ]
+
+    @template.versions.reverse.each_with_index do |version|
+      if version.previous
+        version_diff = Diffy::SplitDiff.new(
+        version.previous.reify ? YAML.dump(version.previous.reify.attributes) : YAML.dump(version.previous.object),
+        YAML.dump(version.reify ? version.reify.attributes : version.attributes),
+        format: :html)
+
+        rows << [ 
+                  version.id, 
+                  version.previous.created_at.strftime('%Y-%m-%d %H:%M:%S'),  
+                  User.find(version.whodunnit).email || "Unknown",
+
+                  version_diff.left.html_safe,
+                  version_diff.right.html_safe,
+                  version
+                ]
+      end 
+    end
+
+
+  table.table style="width: 100%;"
+    thead
+      tr class="bg-gray-100 dark:bg-gray-900 text-gray-800 dark:text-gray-200"
+        th Version Number
+        th Changed At
+        th Changed By
+        th
+        th
+    - rows.each do |row|
+      tbody data-controller="paper-trail"
+        tr class="text-center border-b dark:border-gray-600 bg-gray-100 dark:bg-gray-900 text-gray-900 dark:text-gray-300"
+          td class="px-4"
+            = row[0]
+          td class="px-4"
+            = row[1]
+          td class="px-4"
+            = row[2]
+          td class="px-4"
+            button type="button" class="button" data-action="click->paper-trail#toggle" View Changes
+          td class="px-4"
+            button type="button" class="button" data-action="click->paper-trail#show" data-version-id="#{row[0]}" Rollback
+
+          div id="rollback-dialog-#{row[0]}" class="hidden"
+            = sts.dialog title: "Are you sure you want to rollback?", icon: "fas fa-triangle-exclamation text-red-600" do |dialog|
+              | Are you sure you want to revert to version #{row[0]}?
+              - dialog.with_action
+                button.button data-action="satis-dialog#close"
+                  | Cancel
+              - dialog.with_action
+                = button_to 'Rollback', rollback_admin_template_path(@template, version_id: row[5].id), method: :patch, class: 'button harmful'
+
+
+        tr data-paper-trail-target="diffContainer" class="hidden border-b dark:border-gray-600"
+          td colspan="5"
+            div class="w-[49%] float-left mr-2"
+              = row[3]
+            div class="w-[49%] float-left"
+              = row[4]
+

app/views/papyrus/admin/templates/edit.html.slim

@@ -80,4 +80,8 @@
         .grid.grid-cols-12.gap-4
           .col-span-12
             = f.input :metadata, as: :editor, input_html: { value: YAML.dump(f.object.metadata) }, lang: 'yaml'
-      = card.with_table(:papyrus_papers, parameters: {template_id: @template.id}, custom_views: false, tab: :papers)
+      = card.with_table(:papyrus_papers, parameters: {template_id: @template.id}, custom_views: false, tab: :papers)
+      - card.with_tab:previous_versions
+        .grid.grid-cols-12.gap-4
+          .col-span-12
+            = render partial: 'papyrus/paper_trail' , locals: { card: card }

config/routes.rb

@@ -36,5 +36,18 @@
       post 'paper'
     end
   end
+
+  namespace :admin do
+    resources :templates do
+      member do
+        patch :rollback, to: 'templates#rollback'
+      end
+    end
+  end
+
+  namespace :admin do
+    get 'dialog/rollback', to: 'papyrus/#rollback', as: :rollback_dialog
+  end
+
   root to: 'dashboard#show'
 end