class UserRoleModel < UserAttributeModel

  # Destroy the i18n_variables
  def destroy_i18n_variables
    self.i18n_variable.destroy rescue nil
    self.attribute_models.each do |attr|
      attr.destroy_i18n_variable
    end
  end
  
  # Update or create the i18n_variable record
  def i18n_variable=(attr)
    if self.i18n_variable_id
      self.i18n_variable.update_attributes(attr) rescue nil
    else
      var = I18nVariable.new(attr.merge({:key => self.key, :document_class => self.class}))
      var.save
      self.i18n_variable_id = var.id
    end
  end
  
   # Get the i18n_variable
  def i18n_variable
    @i18n_variable ||= I18nVariable.find(self.i18n_variable_id) rescue nil
  end
  
end