class ZuoraConnect::AppInstanceBase

def reload_attributes(selected_attributes)
  raise "Attibutes must be array" if selected_attributes.class != Array
  value_attributes = self.class.unscoped.where(:id=>id).select(selected_attributes).first.attributes
  value_attributes.each do |key, value|
    next if key == "id" && value.blank?
    self.send(:write_attribute, key, value)
  end
  return self
end