Paginas wiki, arquivos e disciplinas ocultas

app/models/attachment.rb

@@ -27,6 +27,10 @@ class Attachment < ActiveRecord::Base
 	# Validacao
 	generate_validations
 
+	def self.find_front_page
+		Attachment.find(:all, :conditions => [ "front_page = ?", true ])
+	end
+
 	# Atributo virtual file
 	def file=(new_file)
 		@tmp_file = new_file

app/models/course.rb

@@ -51,6 +51,10 @@ class Course < ActiveRecord::Base
 	def related_courses
 		Course.find(:all, :conditions => [ 'short_name = ?', self.short_name], :limit => 4, :order => 'period desc')
 	end
+
+	def recent_news
+		self.news.find(:all, :conditions => [ 'timestamp > ?', 7.days.ago ])
+	end
 	
 	def after_create
 		App.inital_wiki_pages.each do |page_title|

app/models/log_entry/news_log_entry.rb

@@ -25,7 +25,7 @@ class NewsDeleteLogEntry < NewsLogEntry
         news.deleted?
 	end
 	def undo!(current_user)
-		news.restore!
+		news.recover!
 		NewsRestoreLogEntry.create!(:target_id => news.id, :user_id => current_user.id, :course => news.course, :version => news.version)
 	end
 end

app/models/wiki_page.rb

@@ -25,6 +25,7 @@ class WikiPage < ActiveRecord::Base
 	acts_as_list :scope => 'course_id = #{course_id}'
 	acts_as_versioned :if_changed => [ :content, :description, :title ]
 	acts_as_paranoid_versioned
+	self.non_versioned_columns << 'front_page'
 	self.non_versioned_columns << 'position'
 	self.non_versioned_columns << 'deleted_at'
 	self.non_versioned_columns << 'canonical_title'
@@ -43,6 +44,14 @@ class WikiPage < ActiveRecord::Base
 		self.canonical_title = self.title.pretty_url
 	end
 
+	def before_save
+		if !self.front_page
+			self.remove_from_list
+		elsif self.position.nil?
+			self.insert_at(1)
+		end
+	end
+
 	def validate
 		begin
 			self.content.format_wiki
@@ -55,6 +64,10 @@ class WikiPage < ActiveRecord::Base
 		self.canonical_title
 	end
 
+	def self.find_front_page
+		WikiPage.find(:all, :conditions => [ "front_page = ?", true ])
+	end
+
 	def WikiPage.diff(from, to)
 		# Cria um arquivo com o conteudo da versao antiga
 		original_content_file = Tempfile.new("old")