Controle de versoes para noticias e eventos

app/controllers/events_controller.rb

@@ -30,6 +30,7 @@ class EventsController < ApplicationController
 	end
 
 	def show
+		@event.revert_to(params[:version]) if params[:version]
 		respond_to do |format|
 			format.html
 			format.xml { render :xml => @event }
@@ -46,7 +47,7 @@ class EventsController < ApplicationController
 		@event.save!
 		flash[:notice] = 'Event created'[]
 
-		EventCreateLogEntry.create!(:target_id => @event.id, :user => @current_user, :course => @course)
+		EventCreateLogEntry.create!(:target_id => @event.id, :user => @current_user, :course => @course, :version => @event.version)
 
 		respond_to do |format|
 			format.html { redirect_to course_event_path(@course, @event) }
@@ -55,14 +56,16 @@ class EventsController < ApplicationController
 	end
 
 	def edit
+		@event.revert_to(params[:version]) if params[:version]
 	end
 
 	def update
 		@event.attributes = params[:event]
+		dirty = @event.dirty?
 		@event.save!
 		flash[:notice] = 'Event updated'[]
 
-		EventEditLogEntry.create!(:target_id => @event.id, :user => @current_user, :course => @course)
+		EventEditLogEntry.create!(:target_id => @event.id, :user => @current_user, :course => @course, :version => @event.version) if dirty
 
 		respond_to do |format|
 			format.html { redirect_to course_event_path(@course, @event) }
@@ -75,7 +78,7 @@ class EventsController < ApplicationController
 		flash[:notice] = 'Event removed'[]
 		flash[:undo] = undelete_course_event_url(@course, @event)
 
-		EventDeleteLogEntry.create!(:target_id => @event.id, :user => @current_user, :course => @course)
+		EventDeleteLogEntry.create!(:target_id => @event.id, :user => @current_user, :course => @course, :version => @event.version)
 
 		respond_to do |format|
 			format.html { redirect_to course_events_path(@course) }
@@ -97,10 +100,10 @@ class EventsController < ApplicationController
 
 	def undelete
 		@event = Event.find_with_deleted(params[:id])
-		@event.update_attribute(:deleted_at, nil)
+		@event.restore!
-		flash[:notice] = "Event restored"[]
 
-		EventRestoreLogEntry.create!(:target_id => @event.id, :user => @current_user, :course => @event.course)
+		flash[:notice] = "Event restored"[]
+		EventRestoreLogEntry.create!(:target_id => @event.id, :user => @current_user, :course => @event.course, :version => @event.version)
 		
 		respond_to do |format|
 			format.html { redirect_to course_event_url(@event.course, @event) }

app/controllers/news_controller.rb

@@ -33,6 +33,7 @@ class NewsController < ApplicationController
 	end
 
 	def show
+		@news.revert_to(params[:version]) if params[:version]
 		respond_to do |format|
 			format.html
 			format.xml { render :xml => @news }
@@ -49,7 +50,7 @@ class NewsController < ApplicationController
 		@news.save!
 		flash[:notice] = 'News created'[]
 
-		NewsCreateLogEntry.create!(:target_id => @news.id, :user => @current_user, :course => @course)
+		NewsCreateLogEntry.create!(:target_id => @news.id, :user => @current_user, :course => @course, :version => @news.version)
 
 		respond_to do |format|
 			format.html { redirect_to course_news_path(@course, @news) }
@@ -58,14 +59,17 @@ class NewsController < ApplicationController
 	end
 
 	def edit
+		@news.revert_to(params[:version]) if params[:version]
 	end
 
 	def update
 		@news.attributes = params[:news]
+		@news.timestamp = Time.now.utc
+		dirty = @news.dirty?
 		@news.save!
 		flash[:notice] = 'News updated'[]
 
-		NewsEditLogEntry.create!(:target_id => @news.id, :user => @current_user, :course => @course)
+		NewsEditLogEntry.create!(:target_id => @news.id, :user => @current_user, :course => @course, :version => @news.version) if dirty
 
 		respond_to do |format|
 			format.html { redirect_to course_news_path(@course, @news) }
@@ -78,7 +82,7 @@ class NewsController < ApplicationController
 		flash[:notice] = 'News removed'[]
 		flash[:undo] = undelete_course_news_url(@course, @news)
 
-		NewsDeleteLogEntry.create!(:target_id => @news.id, :user => @current_user, :course => @course)
+		NewsDeleteLogEntry.create!(:target_id => @news.id, :user => @current_user, :course => @course, :version => @news.version)
 
 		respond_to do |format|
 			format.html { redirect_to course_news_index_path(@course) }
@@ -88,10 +92,10 @@ class NewsController < ApplicationController
 
 	def undelete
 		@news = News.find_with_deleted(params[:id])
-		@news.update_attribute(:deleted_at, nil)
+		@news.restore!
-		flash[:notice] = "News restored"[]
 
-		NewsRestoreLogEntry.create!(:target_id => @news.id, :user => @current_user, :course => @news.course)
+		flash[:notice] = "News restored"[]
+		NewsRestoreLogEntry.create!(:target_id => @news.id, :user => @current_user, :course => @news.course, :version => @news.version)
 		
 		respond_to do |format|
 			format.html { redirect_to course_news_url(@news.course, @news) }

app/models/event.rb

@@ -18,6 +18,8 @@ class Event < ActiveRecord::Base
 	
 	# Plugins
 	acts_as_paranoid
+	acts_as_versioned :if_changed => [ :title, :description, :time ]
+	self.non_versioned_fields << 'deleted_at'
 
 	# Associacoes
 	belongs_to :course

app/models/log_entry/event_log_entry.rb

@@ -25,8 +25,8 @@ class EventDeleteLogEntry < EventLogEntry
         event.deleted?
 	end
 	def undo!(current_user)
-		event.update_attribute(:deleted_at, nil)
+		event.restore!
-		EventRestoreLogEntry.create!(:target_id => event.id, :user_id => current_user.id, :course => event.course)
+		EventRestoreLogEntry.create!(:target_id => event.id, :user_id => current_user.id, :course => event.course, :version => event.version)
 	end
 end
 

app/models/log_entry/news_log_entry.rb

@@ -25,8 +25,8 @@ class NewsDeleteLogEntry < NewsLogEntry
         news.deleted?
 	end
 	def undo!(current_user)
-		news.update_attribute(:deleted_at, nil)
+		news.restore!
-		NewsRestoreLogEntry.create!(:target_id => news.id, :user_id => current_user.id, :course => news.course)
+		NewsRestoreLogEntry.create!(:target_id => news.id, :user_id => current_user.id, :course => news.course, :version => news.version)
 	end
 end
 

app/models/message.rb

@@ -18,6 +18,8 @@ class Message < ActiveRecord::Base
 
 	# Plugins
 	acts_as_paranoid
+	acts_as_versioned :if_changed => [ :title, :body ]
+	self.non_versioned_fields << 'deleted_at'
 	
 	# Associacoes
 	belongs_to :user,

app/views/events/index.html.haml

@@ -14,6 +14,9 @@
   - if !@events.empty?
     %table
       - @events.each do |event|
+
+        - event.revert_to(params[:version]) if (event.id == params[:id].to_i) and (params[:version])
+
         %tr[event]
           %td.top.aright{:width => '1%'}
             = event.time.strftime("%d de %B") #unless event.time == last_date
@@ -23,7 +26,7 @@
             .title=link_to h(event.title), course_event_url(@course, event)
             .description{:style => (event.id == params[:id].to_i ? '' : 'display: none')}
               %div.cmd
-                = action_icon 'edit', 'Editar', edit_course_event_url(@course, event)
+                = action_icon 'edit', 'Editar', edit_course_event_url(@course, event, :version => event.version)
                 = action_icon 'trash', 'Excluir', course_event_url(@course, event), :confirm => 'Tem certeza que deseja excluir?', :method => :delete
               = formatted(event.description)
               = "Sem descrição" if event.description.empty?

app/views/log/_event_log_entry.html.haml

@@ -1,4 +1,4 @@
-= "Evento " + link_to(h(entry.event.title), course_event_url(entry.course, entry.event))
+= "Evento " + link_to(h(entry.event.title), course_event_url(entry.course, entry.event, :version => entry.version))
 
 = "criado "     if entry.kind_of?(EventCreateLogEntry)
 = "editado "    if entry.kind_of?(EventEditLogEntry)

app/views/log/_news_log_entry.html.haml

@@ -1,4 +1,4 @@
-= "Notícia " + link_to(h(entry.news.title), course_news_url(entry.course, entry.news))
+= "Notícia " + link_to(h(entry.news.title), course_news_url(entry.course, entry.news, :version => entry.version))
 
 = "criada "     if entry.kind_of?(NewsCreateLogEntry)
 = "editada "    if entry.kind_of?(NewsEditLogEntry)

app/views/news/index.html.haml

@@ -14,6 +14,9 @@
   - if !@course.news.empty?
     %table
       - @course.news.each do |n|
+
+        - n.revert_to(params[:version]) if (n.id == params[:id].to_i) and (params[:version])
+
         %tr[n]
           %td.top.aright{:width => '1%'}
             = n.timestamp.strftime("%d de %B")
@@ -21,7 +24,7 @@
             .title= link_to h(n.title), course_news_url(@course, n)
             .description{:style => (n.id == params[:id].to_i ? '' : 'display: none')}
               .cmd
-                = action_icon 'edit', 'Editar', edit_course_news_url(@course, n)
+                = action_icon 'edit', 'Editar', edit_course_news_url(@course, n, :version => n.version)
                 = action_icon 'trash', 'Excluir', course_news_url(@course, n), :confirm => 'Tem certeza que deseja excluir?', :method => :delete
               = formatted(n.body)
               = "Sem descrição" if n.body.empty?

app/views/news/new.html.haml

@@ -1,5 +1,5 @@
 %h4.title= @course.full_name
-%h1.title Adicionar evento
+%h1.title Adicionar notícia
 
 - form_tag course_news_url(@course, @news), :method => :post do
   = render :partial => 'form'

db/schema.rb

@@ -9,7 +9,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 33) do
+ActiveRecord::Schema.define(:version => 34) do
 
   create_table "attachments", :force => true do |t|
     t.string   "file_name",     :null => false
@@ -37,6 +37,18 @@ ActiveRecord::Schema.define(:version => 33) do
     t.integer "course_id"
   end
 
+  create_table "event_versions", :force => true do |t|
+    t.integer  "event_id"
+    t.integer  "version"
+    t.string   "title"
+    t.integer  "created_by"
+    t.integer  "course_id",   :default => 0
+    t.text     "description"
+    t.datetime "deleted_at"
+    t.datetime "time",        :default => '2008-03-05 04:25:27'
+    t.datetime "updated_at"
+  end
+
   create_table "events", :force => true do |t|
     t.string   "title",                                          :null => false
     t.integer  "created_by",                                     :null => false
@@ -44,6 +56,7 @@ ActiveRecord::Schema.define(:version => 33) do
     t.text     "description"
     t.datetime "deleted_at"
     t.datetime "time",        :default => '2008-03-05 04:25:27', :null => false
+    t.integer  "version",     :default => 1,                     :null => false
   end
 
   create_table "log_entries", :force => true do |t|
@@ -56,6 +69,19 @@ ActiveRecord::Schema.define(:version => 33) do
     t.datetime "deleted_at"
   end
 
+  create_table "message_versions", :force => true do |t|
+    t.integer  "message_id"
+    t.integer  "version"
+    t.string   "title"
+    t.text     "body"
+    t.datetime "timestamp"
+    t.integer  "receiver_id"
+    t.integer  "sender_id"
+    t.datetime "deleted_at"
+    t.string   "versioned_type"
+    t.datetime "updated_at"
+  end
+
   create_table "messages", :force => true do |t|
     t.string   "title"
     t.text     "body",                       :null => false
@@ -64,6 +90,7 @@ ActiveRecord::Schema.define(:version => 33) do
     t.integer  "sender_id",                  :null => false
     t.string   "type"
     t.datetime "deleted_at"
+    t.integer  "version",     :default => 1, :null => false
   end
 
   create_table "sessions", :force => true do |t|

test/unit/message_test.rb

@@ -19,8 +19,12 @@ require File.dirname(__FILE__) + '/../test_helper'
 class MessageTest < Test::Unit::TestCase
 	fixtures :messages
 
-	# Replace this with your real tests.
+    def test_should_not_create_new_version
-	def test_truth
+       news = News.find(1)
-		assert true
+       news.destroy
+
+       news = News.find_with_deleted(1)
+       news.restore!
+       assert !news.dirty?
     end
 end

vendor/plugins/acts_as_paranoid/lib/caboose/acts/paranoid.rb

@@ -142,6 +142,12 @@ module Caboose #:nodoc:
         def deleted?
           !!read_attribute(:deleted_at)
         end
+
+        def restore!
+          self.deleted_at = nil
+          self.save!
+        end
+
       end
     end
   end