orbit-basic/app/models/design/design.rb

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

  field :title
  field :author
  field :intro
  field :version

  has_many :pages
  
  embeds_one :layout, :cascade_callbacks => true
  embeds_one :default_css, :class_name => "Stylesheet", :cascade_callbacks => true
  embeds_one :reset_css, :class_name => "Stylesheet", :cascade_callbacks => true
  embeds_many :themes, :cascade_callbacks => true
  embeds_many :javascripts, :cascade_callbacks => true
  embeds_many :images, :cascade_callbacks => true
  embeds_many :custom_images, :class_name => 'Image', :cascade_callbacks => true
  
  validates_presence_of :title
  validates_presence_of :author
  
  after_save :parse_css_for_images
 
  def new_files=(*attrs)
    attrs[0].map  do |key,items_ary|   #Loop by JSs,Themes,Imgs
        self.files=([items_ary, key])
    end
  end
 
  # def javascripts=(*attrs)
  #   self.files = (attrs << 'javascripts')
  # end
  # 
  # def themes=(*attrs)
  #   self.files = (attrs << 'themes')
  # end
  # 
  # def images=(*attrs)
  #   self.files = (attrs << 'images')
  # end
  
  # Update or create the attribute records
  def files=(attrs)
    case attrs.last
      when 'layout'
        files = self.layout.build
      else
        files = eval(attrs.last)
    end
    attrs[0].each do |a|
       
      if a[:id].blank? && !a[:file].blank?
        files.build(:file => a[:file], :to_save => true)
      else
        files.each do |file|
          if file.id.to_s == a[:id]
             file.to_destroy = a[:to_destroy]
          end
        end
      end
    end
  end
  
  protected
  
  def parse_css_for_images
    self.images.each do |image|
      image.save
    end
    if (self.default_css && self.default_css.changed)
      self.default_css.parse_urls
      attrs = self.default_css.attributes
      file = self.default_css.file
      file_orig = self.default_css.file_orig
      self.default_css.destroy
      d = self.build_default_css(attrs) 
      d.file = file
      d.file_orig = file_orig
      d.save
    end
    self.themes.each do |theme|
      if theme.changed
        theme.parse_urls
        attrs = theme.attributes 
        file = theme.file
        file_orig = theme.file_orig
        theme.destroy
        t = self.themes.build(attrs)
        t.file = file
        t.file_orig = file_orig
        t.save
      end
    end
  end
  
end