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rake db:migrate

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rake db:create

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rake db:drop

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mailcatcher --ip=0.0.0.0

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user = User.new(:name => "Michael Hartl", :email => "[email protected]")
	user.formatted_email

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	class User
		attr_accessor :name, :email
		def initialize(attributes = {})
			@name = attributes[:name]
			@email = attributes[:email]
			end
			def formatted_email
			"#{@name} <#{@email}>"
		end
	end

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##Application helpers
Using application helps methods can be defined to simplify method callings in views.
First, define the helper in:

`app/helpers/application_helper.rb`

	module ApplicationHelper
	def title

		base = "Sample app"

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	<h1>Simple for loop</h1>

	<h1>Here we are going to count</h1>
	<p>This is a simple for loop</p>
	<% sum = 0 %>
	<% for i in 1..5 %>
	<% sum = sum+i %>

	<h3><%= "sum is #{sum}" %></h3>
	<% end %>

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	<h2>Register</h2>
	<%= form_for :user do |form| %>
	<fieldset>
	<legend>Enter Your Details</legend>
	<div class="form_row">
	<label for="screen_name">Screen name:</label>
	<%= form.text_field :screen_name %>
	</div>
	<div class="form_row">
	<label for="email">Email:</label>

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##Layout for different controllers

`app/controllers/dashboard_controller.rb`

	class DashboardController < ApplicationController
		before_filter :authenticate_user!
		def index
			render :layout => "dashboard"
		end