adding episode 243

episode-243/README

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+Railscasts Episode #243: Beanstalkd and Stalker
+
+http://railscasts.com/episodes/243
+
+Commands
+
+  beanstalkd -d
+  killall beanstalkd
+  beanstalkd -d -b ...
+  stalk ./config/jobs.rb

episode-243/anycity/.gitignore

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+.bundle
+db/*.sqlite3
+log/*.log
+tmp/**/*

episode-243/anycity/Gemfile

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+source 'http://rubygems.org'
+
+gem 'rails', '3.0.3'
+gem 'sqlite3-ruby', '1.2.5', :require => 'sqlite3'
+gem 'nifty-generators'
+gem 'stalker'

episode-243/anycity/Gemfile.lock

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+GEM
+  remote: http://rubygems.org/
+  specs:
+    abstract (1.0.0)
+    actionmailer (3.0.3)
+      actionpack (= 3.0.3)
+      mail (~> 2.2.9)
+    actionpack (3.0.3)
+      activemodel (= 3.0.3)
+      activesupport (= 3.0.3)
+      builder (~> 2.1.2)
+      erubis (~> 2.6.6)
+      i18n (~> 0.4)
+      rack (~> 1.2.1)
+      rack-mount (~> 0.6.13)
+      rack-test (~> 0.5.6)
+      tzinfo (~> 0.3.23)
+    activemodel (3.0.3)
+      activesupport (= 3.0.3)
+      builder (~> 2.1.2)
+      i18n (~> 0.4)
+    activerecord (3.0.3)
+      activemodel (= 3.0.3)
+      activesupport (= 3.0.3)
+      arel (~> 2.0.2)
+      tzinfo (~> 0.3.23)
+    activeresource (3.0.3)
+      activemodel (= 3.0.3)
+      activesupport (= 3.0.3)
+    activesupport (3.0.3)
+    arel (2.0.6)
+    beanstalk-client (1.1.0)
+    builder (2.1.2)
+    erubis (2.6.6)
+      abstract (>= 1.0.0)
+    i18n (0.5.0)
+    json_pure (1.4.6)
+    mail (2.2.12)
+      activesupport (>= 2.3.6)
+      i18n (>= 0.4.0)
+      mime-types (~> 1.16)
+      treetop (~> 1.4.8)
+    mime-types (1.16)
+    nifty-generators (0.4.2)
+    polyglot (0.3.1)
+    rack (1.2.1)
+    rack-mount (0.6.13)
+      rack (>= 1.0.0)
+    rack-test (0.5.6)
+      rack (>= 1.0)
+    rails (3.0.3)
+      actionmailer (= 3.0.3)
+      actionpack (= 3.0.3)
+      activerecord (= 3.0.3)
+      activeresource (= 3.0.3)
+      activesupport (= 3.0.3)
+      bundler (~> 1.0)
+      railties (= 3.0.3)
+    railties (3.0.3)
+      actionpack (= 3.0.3)
+      activesupport (= 3.0.3)
+      rake (>= 0.8.7)
+      thor (~> 0.14.4)
+    rake (0.8.7)
+    sqlite3-ruby (1.2.5)
+    stalker (0.5.0)
+      beanstalk-client
+      json_pure
+    thor (0.14.6)
+    treetop (1.4.9)
+      polyglot (>= 0.3.1)
+    tzinfo (0.3.23)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  nifty-generators
+  rails (= 3.0.3)
+  sqlite3-ruby (= 1.2.5)
+  stalker

episode-243/anycity/Rakefile

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+# Add your own tasks in files placed in lib/tasks ending in .rake,
+# for example lib/tasks/capistrano.rake, and they will automatically be available to Rake.
+
+require File.expand_path('../config/application', __FILE__)
+require 'rake'
+
+Anycity::Application.load_tasks

episode-243/anycity/app/controllers/application_controller.rb

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+class ApplicationController < ActionController::Base
+  protect_from_forgery
+end

episode-243/anycity/app/controllers/cities_controller.rb

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+class CitiesController < ApplicationController
+  def index
+    @cities = City.all
+  end
+
+  def show
+    @city = City.find(params[:id])
+  end
+
+  def new
+    @city = City.new
+  end
+
+  def create
+    @city = City.new(params[:city])
+    if @city.save
+      Stalker.enqueue("city.fetch_name", :id => @city.id)
+      flash[:notice] = "Successfully created city."
+      redirect_to @city
+    else
+      render :action => 'new'
+    end
+  end
+
+  def edit
+    @city = City.find(params[:id])
+  end
+
+  def update
+    @city = City.find(params[:id])
+    if @city.update_attributes(params[:city])
+      flash[:notice] = "Successfully updated city."
+      redirect_to @city
+    else
+      render :action => 'edit'
+    end
+  end
+
+  def destroy
+    @city = City.find(params[:id])
+    @city.destroy
+    flash[:notice] = "Successfully destroyed city."
+    redirect_to cities_url
+  end
+end

episode-243/anycity/app/helpers/application_helper.rb

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+module ApplicationHelper
+end

episode-243/anycity/app/helpers/cities_helper.rb

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+module CitiesHelper
+end

episode-243/anycity/app/helpers/error_messages_helper.rb

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+module ErrorMessagesHelper
+  # Render error messages for the given objects. The :message and :header_message options are allowed.
+  def error_messages_for(*objects)
+    options = objects.extract_options!
+    options[:header_message] ||= "Invalid Fields"
+    options[:message] ||= "Correct the following errors and try again."
+    messages = objects.compact.map { |o| o.errors.full_messages }.flatten
+    unless messages.empty?
+      content_tag(:div, :class => "error_messages") do
+        list_items = messages.map { |msg| content_tag(:li, msg) }
+        content_tag(:h2, options[:header_message]) + content_tag(:p, options[:message]) + content_tag(:ul, list_items.join.html_safe)
+      end
+    end
+  end
+
+  module FormBuilderAdditions
+    def error_messages(options = {})
+      @template.error_messages_for(@object, options)
+    end
+  end
+end
+
+ActionView::Helpers::FormBuilder.send(:include, ErrorMessagesHelper::FormBuilderAdditions)

episode-243/anycity/app/helpers/layout_helper.rb

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+# These helper methods can be called in your template to set variables to be used in the layout
+# This module should be included in all views globally,
+# to do so you may need to add this line to your ApplicationController
+#   helper :layout
+module LayoutHelper
+  def title(page_title, show_title = true)
+    content_for(:title) { h(page_title.to_s) }
+    @show_title = show_title
+  end
+
+  def show_title?
+    @show_title
+  end
+
+  def stylesheet(*args)
+    content_for(:head) { stylesheet_link_tag(*args) }
+  end
+
+  def javascript(*args)
+    content_for(:head) { javascript_include_tag(*args) }
+  end
+end

episode-243/anycity/app/models/city.rb

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+class City < ActiveRecord::Base
+  attr_accessible :zip_code, :name
+
+  def fetch_name
+    url = "http://ws.geonames.org/postalCodeLookupJSON?postalcode=#{zip_code}&country=US"
+    json = Net::HTTP.get_response(URI.parse(url)).body
+    update_attribute(:name, JSON.parse(json)["postalcodes"].first["placeName"])
+  end
+end

episode-243/anycity/app/views/cities/_form.html.erb

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+<%= form_for @city do |f| %>
+  <%= f.error_messages %>
+  <p>
+    <%= f.label :zip_code %><br />
+    <%= f.text_field :zip_code %>
+  </p>
+  <p><%= f.submit %></p>
+<% end %>

episode-243/anycity/app/views/cities/edit.html.erb

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+<% title "Edit City" %>
+
+<%= render 'form' %>
+
+<p>
+  <%= link_to "Show", @city %> |
+  <%= link_to "View All", cities_path %>
+</p>

episode-243/anycity/app/views/cities/index.html.erb

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+<% title "Cities" %>
+
+<table>
+  <tr>
+    <th>Zip Code</th>
+    <th>Name</th>
+  </tr>
+  <% for city in @cities %>
+    <tr>
+      <td><%= city.zip_code %></td>
+      <td><%= city.name %></td>
+      <td><%= link_to "Show", city %></td>
+      <td><%= link_to "Edit", edit_city_path(city) %></td>
+      <td><%= link_to "Destroy", city, :confirm => 'Are you sure?', :method => :delete %></td>
+    </tr>
+  <% end %>
+</table>
+
+<p><%= link_to "New City", new_city_path %></p>

episode-243/anycity/app/views/cities/new.html.erb

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+<% title "New City" %>
+
+<%= render 'form' %>
+
+<p><%= link_to "Back to List", cities_path %></p>

episode-243/anycity/app/views/cities/show.html.erb

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+<% title "City" %>
+
+<p>
+  <strong>Zip Code:</strong>
+  <%= @city.zip_code %>
+</p>
+<p>
+  <strong>Name:</strong>
+  <%= @city.name %>
+</p>
+
+<p>
+  <%= link_to "Edit", edit_city_path(@city) %> |
+  <%= link_to "Destroy", @city, :confirm => 'Are you sure?', :method => :delete %> |
+  <%= link_to "View All", cities_path %>
+</p>

episode-243/anycity/app/views/layouts/application.html.erb

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+<!DOCTYPE html>
+<html>
+  <head>
+    <title><%= content_for?(:title) ? yield(:title) : "Untitled" %></title>
+    <%= stylesheet_link_tag "application" %>
+    <%= javascript_include_tag :defaults %>
+    <%= csrf_meta_tag %>
+    <%= yield(:head) %>
+  </head>
+  <body>
+    <div id="container">
+      <% flash.each do |name, msg| %>
+        <%= content_tag :div, msg, :id => "flash_#{name}" %>
+      <% end %>
+      <%= content_tag :h1, yield(:title) if show_title? %>
+      <%= yield %>
+    </div>
+  </body>
+</html>

episode-243/anycity/config.ru

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+# This file is used by Rack-based servers to start the application.
+
+require ::File.expand_path('../config/environment',  __FILE__)
+run Anycity::Application

episode-243/anycity/config/application.rb

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+require File.expand_path('../boot', __FILE__)
+
+require 'rails/all'
+
+# If you have a Gemfile, require the gems listed there, including any gems
+# you've limited to :test, :development, or :production.
+Bundler.require(:default, Rails.env) if defined?(Bundler)
+
+module Anycity
+  class Application < Rails::Application
+    # Settings in config/environments/* take precedence over those specified here.
+    # Application configuration should go into files in config/initializers
+    # -- all .rb files in that directory are automatically loaded.
+
+    # Custom directories with classes and modules you want to be autoloadable.
+    # config.autoload_paths += %W(#{config.root}/extras)
+
+    # Only load the plugins named here, in the order given (default is alphabetical).
+    # :all can be used as a placeholder for all plugins not explicitly named.
+    # config.plugins = [ :exception_notification, :ssl_requirement, :all ]
+
+    # Activate observers that should always be running.
+    # config.active_record.observers = :cacher, :garbage_collector, :forum_observer
+
+    # Set Time.zone default to the specified zone and make Active Record auto-convert to this zone.
+    # Run "rake -D time" for a list of tasks for finding time zone names. Default is UTC.
+    # config.time_zone = 'Central Time (US & Canada)'
+
+    # The default locale is :en and all translations from config/locales/*.rb,yml are auto loaded.
+    # config.i18n.load_path += Dir[Rails.root.join('my', 'locales', '*.{rb,yml}').to_s]
+    # config.i18n.default_locale = :de
+
+    # JavaScript files you want as :defaults (application.js is always included).
+    # config.action_view.javascript_expansions[:defaults] = %w(jquery rails)
+
+    # Configure the default encoding used in templates for Ruby 1.9.
+    config.encoding = "utf-8"
+
+    # Configure sensitive parameters which will be filtered from the log file.
+    config.filter_parameters += [:password]
+  end
+end

episode-243/anycity/config/boot.rb

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+require 'rubygems'
+
+# Set up gems listed in the Gemfile.
+gemfile = File.expand_path('../../Gemfile', __FILE__)
+begin
+  ENV['BUNDLE_GEMFILE'] = gemfile
+  require 'bundler'
+  Bundler.setup
+rescue Bundler::GemNotFound => e
+  STDERR.puts e.message
+  STDERR.puts "Try running `bundle install`."
+  exit!
+end if File.exist?(gemfile)

episode-243/anycity/config/database.yml

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+# SQLite version 3.x
+#   gem install sqlite3-ruby (not necessary on OS X Leopard)
+development:
+  adapter: sqlite3
+  database: db/development.sqlite3
+  pool: 5
+  timeout: 5000
+
+# Warning: The database defined as "test" will be erased and
+# re-generated from your development database when you run "rake".
+# Do not set this db to the same as development or production.
+test:
+  adapter: sqlite3
+  database: db/test.sqlite3
+  pool: 5
+  timeout: 5000
+
+production:
+  adapter: sqlite3
+  database: db/production.sqlite3
+  pool: 5
+  timeout: 5000

episode-243/anycity/config/environment.rb

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+# Load the rails application
+require File.expand_path('../application', __FILE__)
+
+# Initialize the rails application
+Anycity::Application.initialize!