init add

.gitignore

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+*.sqlite3
+config/database.yml

Rakefile

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+require 'sinatra-dj'
+require File.dirname(__FILE__) + "/vendor/delayed_job/tasks/tasks"
+
+namespace :db do
+  task :migrate do
+    ActiveRecord::Migrator.migrate(
+      'db/migrate', 
+      ENV["VERSION"] ? ENV["VERSION"].to_i : nil
+    )
+  end
+end

config.ru

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+require 'sinatra-dj'
+
+run Sinatra::Application

db/migrate/20090411011247_create_delayed_jobs.rb

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+class CreateDelayedJobs < ActiveRecord::Migration
+	def self.up
+		create_table :delayed_jobs do |t|
+			t.integer  :priority, :default => 0
+			t.integer  :attempts, :default => 0
+			t.text     :handler
+			t.string   :last_error
+			t.datetime :run_at
+			t.datetime :locked_at
+			t.datetime :failed_at
+			t.string   :locked_by
+			t.timestamps
+		end
+	end
+end

db/migrate/20090411011516_create_translations.rb

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+class CreateTranslations < ActiveRecord::Migration
+	def self.up
+		create_table :translations do |t|
+			t.text :input
+			t.text :output
+			t.timestamps
+		end
+	end
+end

lib/translation.rb

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+class Translation < ActiveRecord::Base
+  after_create :queue
+
+  def queue
+    Delayed::Job.enqueue self
+  end
+
+  def perform
+    self.output = self.class.english_to_pig_latin(input)
+    save!
+  end
+
+  def self.english_to_pig_latin(text)
+    text.split.map do |word|
+      if word.length <= 2
+        word
+      else
+        (word[1,9999] + word[0,1] + "ay").downcase
+      end
+    end.join(" ")
+  end
+end

sinatra-dj.rb

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+$:.unshift *Dir[File.dirname(__FILE__) + "/vendor/*/lib"]
+
+require 'sinatra'
+require 'activerecord'
+require 'delayed_job'
+
+require File.dirname(__FILE__) + '/lib/translation'
+
+configure do
+  config = YAML::load(File.open('config/database.yml'))
+  environment = Sinatra::Application.environment.to_s
+  ActiveRecord::Base.logger = Logger.new($stdout)
+  ActiveRecord::Base.establish_connection(
+    config[environment]
+  )
+end
+
+get '/' do
+  @translations = Translation.all(:order => 'created_at desc')
+  erb :translations
+end
+
+post '/translations' do
+  Translation.create! :input => params[:input]
+  redirect '/'
+end

views/translations.erb

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+<h1>Pig Latin Translator</h1>
+
+<% @translations.each do |translation| %>
+	<ul>
+		<li>
+			<span><%= translation.input %></span>
+			<span>&rarr;</span>
+			<span><%= translation.output || '<i>...pending...</i>' %></span>
+		</li>
+	</ul>
+<% end %>
+
+<hr/>
+
+<h2>New Translation</h2>
+<form method="post" action="/translations">
+	<div><textarea rows="3" cols="80" name="input">Enter text to translate</textarea></div>
+	<div><input type="submit" value="Submit" /></div>
+</form>