#219 Active Model - RailsCasts

class Message include ActiveModel::Validations include ActiveModel::Conversion extend ActiveModel::Naming attr_accessor :name, :email, :content validates_presence_of :name validates_format_of :email, :with => /^[-a-z0-9_+\.]+\@([-a-z0-9]+\.)+[a-z0-9]{2,4}$/i validates_length_of :content, :maximum => 500 def initialize(attributes = {}) attributes.each do |name, value| send("#{name}=", value) end en

[soh335]

no db で validate だけするさん

[dribble13]

DBに格納したくないデータをActiveModelで使う例

[tech-kazuhisa]

ActiveRecordを継承しないModelでform_forを使いたい場合