Improve code in items, pages, links

app/models/item.rb

@@ -5,15 +5,13 @@ class Item
   
   field :name, :index => true
   field :full_name, :index => true
-  field :parent_id, :index => true
-  field :parent_name
   field :position, :type => Integer
-  field :is_published, :type => Boolean, :default => true, :index => true
+  field :is_published, :type => Boolean, :default => false, :index => true
  
   validates_format_of :name, :with => /^[0-9a-zA-Z\-_]+$/
   validates :name, :exclusion => { :in => LIST[:forbidden_item_names] }
   validates_uniqueness_of :name, :scope => :parent_id
-  validates_presence_of :name, :full_name, :position, :is_published
+  validates_presence_of :name, :full_name, :position
   
   belongs_to :parent, :class_name => "Item"
   has_one :i18n_variable, :as => :language_value, :autosave => true, :dependent => :destroy
@@ -47,9 +45,6 @@ class Item
       self.position = (max_page)? max_page + 1 : 1
     end
     
-    # Set the parent value
-    self.parent_name = Item.first(:conditions => {:id => self.parent_id} ).name rescue nil
-    
     # Build the full_name from the ancestors array
     full_node = self.ancestors.map{ |a| a.name }.push( self.name )
     # Remove root node if not root