#219 Active Model

class Message < ActiveRecord::Base
 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
end

  # == Active Model Validations
  #   
  # Provides a full validation framework to your objects.
  # 
  # A minimal implementation could be:
  # 
  #   class Person
  #     include ActiveModel::Validations
  # 
  #     attr_accessor :first_name, :last_name
  #
  #     validates_each :first_name, :last_name do |record, attr, value|
  #       record.errors.add attr, 'starts with z.' if value.to_s[0] == ?z
  #     end
  #   end
  #

class Message
  include ActiveModel::Validations
  
  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
end

class MessagesController < ApplicationController
  def new
    @message = Message.new
  end

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

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

class Message
  include ActiveModel::Validations
  
  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
end

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