Download:

Download(11.7 MB, 6:47)
Alternativer Download für iPod & Apple TV(10.9 MB, 6:47)

Resourcen:

• Episode 193: Tableless Model
• activemodel source
• Full episode source code

Quellcode:

# models/message.rb
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
  end

  def persisted?
    false
  end
end

# messages_controller.rb
def create
  @message = Message.new(params[:message])
  if @message.valid?
    # TODO send message here
    flash[:notice] = "Message sent! Thank you for conacting us."
    redirect_to root_url
  else
    render :action => 'new'
  end
end