我如何获得ActiveRecord的属性方法功能?我有这个类:
class PurchaseForm
include ActiveModel::Validations
include ActiveModel::Conversion
extend ActiveModel::Naming
attr_accessor :name,
:surname,
:email
validates_presence_of :name
validates_format_of :email, :with => /^[-a-z0-9_+\.]+\@([-a-z0-9]+\.)+[a-z0-9]{2,4}$/i
def initialize(attributes = {}, shop_name)
if not attributes.nil?
attributes.each do |name, value|
send("#{name}=", value)
end
end
def persisted?
false
end
end
我需要做什么才能使得PurchaseForm对象拥有一个attributes方法,以列出所有名称和值?