emmapersky/datamapper_example.rb

## datamapper_example.rb
require 'rubygems'
require 'sinatra'
require 'dm-core'
require 'dm-migrations'

class Animal
  include DataMapper::Resource

  property :id, Serial
  property :name, String

  def about
    "#{@name} is urrrrrr?"
  end
end

configure do
  DataMapper::Logger.new($stdout, :debug)
  DataMapper.setup(:default, 'sqlite::memory:')
  DataMapper.auto_migrate!
end

get '/' do
  @animals = Animal.all
  erb :index
end

post '/animal' do
  animal = Animal.new(:name => params[:name])
  animal.save
  redirect '/'
end

__END__
@@ index
<html>
  <head>
    <title>Animals!</title>
  </head>
  <body>
    <h3>Create an animal</h3>
    <form method='post' action='/animal'>
      <label for='name'>name</label><input type='text' name='name' /><br />
      <input type='submit' />
    </form>
    <hr />
    <h3>Listing <%= @animals.size %> Animals</h3>
    <ul>
      <% @animals.each do |animal| %>
        <li><%= animal.about%></li>
      <% end %>
    </ul>
  </body>
</html>
	require 'rubygems'
	require 'sinatra'
	require 'dm-core'
	require 'dm-migrations'

	class Animal
	include DataMapper::Resource

	property :id, Serial
	property :name, String

	def about
	"#{@name} is urrrrrr?"
	end
	end

	configure do
	DataMapper::Logger.new($stdout, :debug)
	DataMapper.setup(:default, 'sqlite::memory:')
	DataMapper.auto_migrate!
	end

	get '/' do
	@animals = Animal.all
	erb :index
	end

	post '/animal' do
	animal = Animal.new(:name => params[:name])
	animal.save
	redirect '/'
	end

	__END__
	@@ index
	<html>
	<head>
	<title>Animals!</title>
	</head>
	<body>
	<h3>Create an animal</h3>
	<form method='post' action='/animal'>
	<label for='name'>name</label><input type='text' name='name' /><br />
	<input type='submit' />
	</form>
	<hr />
	<h3>Listing <%= @animals.size %> Animals</h3>
	<ul>
	<% @animals.each do \|animal\| %>
	<li><%= animal.about%></li>
	<% end %>
	</ul>
	</body>
	</html>