[pettanr/pettanr.git] / app / models / scroll.rb

class Scroll < Peta::Content
  load_manifest
  has_many :scroll_panels
  belongs_to :author
  
  validates :title, :presence => true, :length => {:maximum => 100}
  validates :visible, :presence => true, :numericality => true, :inclusion => {:in => 0..1}
  validates :author_id, :presence => true, :numericality => true, :existence => {:both => false}
  def supply_default
    self.visible = 0 if self.visible.blank?
  end
  
  def overwrite operators
    return false unless operators.author
    self.author_id = operators.author.id
  end
  
  def visible? operators
    return false unless super
    self.visible > 0
  end
  
  def scroll_panels_count
    ScrollPanel.where(['scroll_panels.scroll_id = ?', self.id]).count
  end
  
  def self.list_order
    'scrolls.updated_at desc'
  end
  
  def self.list_where
    'scrolls.visible > 0'
  end
  
  def self.list_opt
    {:scroll_panels => {:panel => {}}, :author => {} }
  end
  
  def self.list_json_opt
    {:include => {:scroll_panels => {:include => {:panel => {}}}, :author => {}}}
  end
  
  def self.show_opt
    {:include => {:scroll_panels => {:panel => {}}, :author => {}}}
  end
  
  def self.show_json_opt
    {:include => {:scroll_panels => {:include => {:panel => {}}}, :author => {}}}
  end
  
  def self.visible_count
    Scroll.count 'visible > 0'
  end
  
  def destroy_with_scroll_panel
    res = false
    Scroll.transaction do
      self.scroll_panels.each do |scroll_panel|
        raise ActiveRecord::Rollback unless scroll_panel.destroy
      end
      raise ActiveRecord::Rollback unless self.destroy
      res = true
    end
    res
  end
  
  def scenario
    panels.map {|panel|
      panel.scenario
    }.join
  end
  
  def plain_scenario
    panels.map {|panel|
      panel.plain_scenario
    }.join
  end
  
end