Orbit/app/models/design/design.rb

class Design
  include Mongoid::Document
  include Mongoid::Timestamps
  include ParserLayout

  field :author, :type => String
  field :intro, :type => String
  field :title, :type => String
  field :version, :type => String

  mount_uploader :zip_file, AssetUploader

  has_one :site
  has_one :css_default, as: :css, :autosave => true, :dependent => :destroy
  has_one :layout, :autosave => true, :dependent => :destroy
  has_one :css_reset, :autosave => true, :dependent => :destroy
  has_one :thumb, :autosave => true, :dependent => :destroy
  has_many :images, as: :imgs, :autosave => true, :dependent => :destroy
  has_many :javascripts, as: :js, :autosave => true, :dependent => :destroy
  has_many :pages
  has_many :screenshots, :autosave => true, :dependent => :destroy
  has_many :themes, :autosave => true, :dependent => :destroy

  accepts_nested_attributes_for :images, :allow_destroy => true
  accepts_nested_attributes_for :javascripts, :allow_destroy => true
  accepts_nested_attributes_for :screenshots, :allow_destroy => true
  accepts_nested_attributes_for :themes, :allow_destroy => true

  validates_presence_of :author, :title
  
  after_save :parse_css_for_images
  
  protected
  
  def parse_css_for_images
    self.css_default.parse_urls
    self.themes.each do |theme|
      theme.parse_urls
    end
    parse_body_for_images(self)
  end
  
end