class Iteration < ActiveRecord::Base

  hobo_model
  set_field_type :body=>:textile
  validates_presence_of :title
  validates_uniqueness_of :title

  has_many :comments

  set_default_order "created_at DESC"

  def display_name
    "#{self.title} (#{self.created_at.to_formatted_s(:datum_kurz)})"
  end

  def feed_description
    self.body.to_html
  end
  
  def author
    "Niko Dittmann"
  end

  def feed_id
    "NikoDittmann::Plog_Iteration_#{self.id}_#{self.created_at.xmlschema}"
  end

  def self.find_latest
    Iteration.find(:all, :limit=>5, :order=>"created_at DESC")
  end
  
  def self.last_updated_at
    Iteration.find(:first, :select=>:updated_at, :order=>"updated_at DESC").updated_at
  end

  # --- Hobo Permissions --- #

  def creatable_by?(creator)
    false
  end

  def updatable_by?(updater, new)
    false
  end

  def deletable_by?(deleter)
    false
  end

  def viewable_by?(viewer, field)
    true
  end

end