railsHowTo: using application helpers

gistfile1

##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"
		if @title.nil?
			base
		else
			"#{base} | #{@title}"
		end
	end

	end

Then in the one of the controllers define the titles for each page. For example, in the pages controller define the following:

`app/controllers/pages_controller`

	class PagesController < ApplicationController
	  def home
	  	@title = "Home"
	  end

	  def about
	  	@title = "about"
	  end
	end

and then in the view call the title method from the application helper to print the title of the page:

`app/views/pages/home.html.erb`

	<h1>The tiltle is <%= title %></h1>

`output:`

	The tiltle is Sample app | Home