module CashItemTags
  include Radiant::Taggable
 
  class TagError < StandardError; end
...
end

  # 何もしない、ネームスペースの定義だけのタグは、とりあえず「tag.expand」としておこう
  tag 'cash_items' do |tag|
    tag.expand
  end
 
  tag 'cash_items:each' do |tag|
    begin
      # localsにモデルをセット
      # ここでセットすると、 cash_items:each:* のネームスペースの子要素内で参照できる、ということ
      tag.locals.items = CashItem.all
      ret = []
      iterated_items = tag.locals.items
      # モデルの個数だけ、 r:cash_items:each タグでくくった要素を繰り返し出力する
      iterated_items.each do |item|
        tag.locals.item = item
        ret << tag.expand 
      end
      ret
    rescue => e
      "タグに誤りがあるようです：#{e.class}, #{e.message}"
    end
  end
 
  # 名前だけ
  tag 'cash_items:each:item' do |tag|
    tag.expand
  end
 
  # cash_items:each 内で、各モデルの各属性に参照する
  tag 'cash_items:each:item:name' do |tag|
    tag.locals.item.name
  end
  # tag.attr はこんな感じで使える
  tag 'cash_items:each:item:paid_at' do |tag|
    tag.locals.item.paid_at.strftime((tag.attr["format"] || "%Y/%m/%d(%a) %H:%M:%S").strip)
  end
  # 以下、各属性へのアクセッサーを宣言……

    Page.class_eval {
      include CashItemTags
    }

<r:cash_items:each>
h3. <r:item:name />
 * 使用金額：<r:item:amount />
 * 購入者：<r:item:user_name />
 * 購入日時：<r:item:paid_at format="%Y年%m月%d日 (%H:%M)" />
 
bq. <r:item:note />
</r:cash_items:each>

git clone git://github.com/udzura/radiant-cash_memo-extension.git vendor/extensions/cash_memo

sudo gem install radiant

radiant -d mysql cash-book
 
mysql> create database cash_book_development
default charset utf8
default collate utf8_general_ci
;
#=>Query OK, 1 row affected (0.02 sec)
 
cd cash-book/
rake db:bootstrap
ruby script/generate extension cash-memo

cd ..
rails cash-book-tmp
cd cash-book-tmp/
ruby script/generate scaffold Admin::CashItem \
  name:string paid_at:datetime \
  user_id:integer amount:integer \
  note:text
cp -rv app/views/admin ../cash-book/vendor/extensions/cash_memo/app/views/
cp -rv app/controllers/admin ../cash-book/vendor/extensions/cash_memo/app/controllers/
cp -rv app/models/admin ../cash-book/vendor/extensions/cash_memo/app/models/
cp -rv db/migrate/* ../cash-book/vendor/extensions/cash_memo/db/migrate/
mv -v ../cash-book/vendor/extensions/cash_memo/app/models/admin/cash_item.rb ../cash-book/vendor/extensions/cash_memo/app/models/
rmdir ../cash-book/vendor/extensions/cash_memo/app/models/admin/

ActionController::Routing::Routes.draw do |map|
  map.namespace :admin do |admin|
    admin.resources :cash_items
  end
end

  def activate
    tab 'Content' do
      add_item "小遣い帳", "/admin/cash_items", :after => "Pages"
    end
  end

rake radiant:extensions:cash_memo:migrate

ruby script/server -e development

  def activate
+    User.class_eval {
+      has_many :cash_items
+      def to_option
+        [self.name, self.id]
+      end
+      
+      def User.all_as_options
+        User.all.map(&:to_option)
+      end
+    }
...

<% form_for(@admin_cash_item, :url => ...) do |f| %>
...
-     <%= f.text_field :user_id %>
+     <%= f.select :user_id, User.all_as_options %>
...

require "rubygems"
require "active_support"
 
a1 = returning [] do |ary|
  ary << 'hoge'
  ary << 'fuga'
end
 
a2 = [].tap do |ary|
  ary << 'hoge'
  ary << 'fuga'
end
 
require "spec"
a1.should == a2
#=> true

module ReturningStrikesBack
  def returning(value)
    yield(value)
    value
  end
end
 
class Object
  include ReturningStrikesBack
end

# base_uri対応の前準備(例)
ln -s /var/www/rails-apps/hoge/public /var/www/passenger/hoge

http {
#....
    passenger_root /usr/lib/ruby/gems/1.8/gems/passenger-2.2.15;
    passenger_ruby /usr/bin/ruby1.8;
    server { # for "/" setting
        listen 8080;
        server_name dev.local.udzura.jp;
        passenger_enabled on;
        rails_env production;
        root /var/www/rails-apps/root-app/public;
        error_page  404              /404.html;
        error_page  500 502 503 504  /error.html;
        location /hoge {
            proxy_set_header X-Real-IP  $remote_addr;
            proxy_set_header Host $host:$server_port;
            # その他、継承したいヘッダーを追加
            proxy_pass http://127.0.0.1:8081/hoge;
        }
    }
 
    server { # for "/hoge" setting
        listen 8081;
        server_name dev.local.udzura.jp;
        # 8081番ポートへの直接アクセスを禁止
        allow 127.0.0.1;
        deny  all;
        passenger_enabled on;
        rails_env production;
        root /var/www/passenger;
        passenger_base_uri /hoge;
        error_page  404              /hoge/404.html;
        error_page  500 502 503 504  /hoge/500.html;
    }
#....
}

sudo gem install passenger

sudo passenger-install-nginx-module
 
... # 以下が依存関係。通らないときは頑張って入れること
 * GNU C++ compiler... found at /usr/bin/g++
 * Ruby development headers... found
 * OpenSSL support for Ruby... found
 * RubyGems... found
 * Rake... found at /usr/bin/rake
 * rack... found
 * OpenSSL development headers... found
 * Zlib development headers... found
...
 
Enter your choice (1 or 2) or press Ctrl-C to abort: #=> 1
...
 
Please specify a prefix directory [/opt/nginx]: #=> デフォルトのままでいいでしょう
...
 
--------------------------------------------
 
Nginx with Passenger support was successfully installed.
...

sudo (gedit|vi) /opt/nginx/conf/nginx.conf

sudo chmod a+x /etc/init.d/nginx-passenger
sudo update-rc.d -f nginx-passenger defaults

p url_for :controller => 'udzura', :action => 'bird', :format => 'html', :anchor => 'para2'
#=> '/udzura/bird.html#para2'

api = Nokogiri::XML.parse(open(URI.encode "http://ws.audioscrobbler.com/2.0/?method=track.search&track=夏&api_key=#{API_KEY}&limit=5"))
puts api.search("/lfm/results/trackmatches/track[1]/name").inner_text

puts api.tracks[0].name

sudo aptitude install libxml2-dev libxslt-dev # e.g. Ubuntu/Debian
sudo gem install sax-machine

require 'rubygems'
require 'sax-machine'
require 'open-uri'
 
module Lastfm
  class Track
    include SAXMachine
    element :name
    element :artist
    element :url
    element :streamable
    element :listeners
    ["small", "medium", "large", "extralarge"].each do |size|
      element :image, :as => "image_#{size}", :with => {:size => size}
    end
  end
 
  class TrackInfo
    include SAXMachine
    element "opensearch:Query", :value => :searchTerms, :as => :query
    element "opensearch:Query", :value => :role, :as => :query
    element "opensearch:totalResults", :as => :total_results
    element "opensearch:startIndex", :as => :start
    element "opensearch:itemsPerPage", :as => :per_page
    elements :track, :as => :tracks, :class => Track
 
    class << self
      API_KEY  = "YOUR_API_KEY"
      PER_PAGE = 5
      def search(query, options={}) # 検索インタフェース
        page = (options[:page] || 1).to_i
        per_page = (options[:per_page] || PER_PAGE).to_i
        url = URI.encode( "http://ws.audioscrobbler.com/2.0/?" +
          "method=track.search&" + 
          "track=#{query}&" + 
          "api_key=#{API_KEY}&" +
          "limit=#{per_page}&" +
          "page=#{page}" )
        parse(open(url))
      end
    end
  end
end
 
lastfm = Lastfm::TrackInfo.search("夏")
#=> #<Lastfm::TrackInfo:0x7f8d664d97e8>
lastfm.total_results
#=> 380
lastfm.tracks.count
#=> 5
puts lastfm.tracks[0].name
# 夏・コイ
puts lastfm.tracks[0].artist
# いきものがかり

<xml>
  <hoge />
  <fuga />
  <item>......</item>
  <item>......</item>
  <item>......</item>
</xml>

<xml>
  <hoge />
  <fuga />
  <list>
    <item>......</item>
    <item>......</item>
    <item>......</item>
  </list>
</xml>

#!/usr/bin/env ruby
# -*- coding: utf-8 -*-
require 'rubygems'
require 'optparse'
require 'yaml'
require 'securerandom'
require 'scrobbler'
require 'oauth'
require 'twitter'
 
class Array
  def random_pick
    self[SecureRandom.random_number(self.size)]
  end
end
 
class BolbotsBot
  class << self
    def post
      self.new.post
    end
  end
 
  def initialize
    @conf_file = nil
    opt = OptionParser.new
    opt.on('-c CONF', '--config=CONF'){|v| @conf_file = v }
    opt.parse!(ARGV)
    @CONF = YAML.load_file(@conf_file || File.join(File.dirname($0), "config.yml"))
  end
 
  def post
    client.update("今日の一曲: #{track.name} - #{track.artist} #{track.url}")
    puts "ポスト成功: #{track.name} - #{track.artist}"
  end
 
private
  def client
    @client ||= Twitter::Base.new(oauth)
  end
 
  def oauth
    unless @oauth
      @oauth = Twitter::OAuth.new(@CONF[:consumer_token], @CONF[:consumer_secret])
      @oauth.authorize_from_access(@CONF[:access_token], @CONF[:access_secret])
    end
    @oauth
  end
 
  def track
    @track ||= Scrobbler::Artist.new(artists.random_pick).top_tracks.random_pick
  end
 
  def artists
    @CONF[:artists]
  end
end
 
(__FILE__ == $0) && BolbotsBot.post

:consumer_token:  "hogehoge"
:consumer_secret: "fugafuga"
:access_token:    "foo-bar"
:access_secret:   "buzbuz"
:artists:
  - "bolbots"
  - "箱庭の室内楽"

chmod a+x bolbotsbot.rb
./bolbotsbot.rb -c bolbots.yml
#=> ポスト成功: Deadwinter - Bolbots

:consumer_token:  "hogehoge"
:consumer_secret: "fugafuga"
:access_token:    "foo-bar"
:access_secret:   "buzbuz"
:artists:
  - "曽我部恵一"
  - "曽我部恵一BAND"
  - "サニーデイ・サービス"

wget http://kr.archive.ubuntu.com/ubuntu/pool/universe/libo/libodbc-ruby/libodbc-ruby1.8_0.9995-1_amd64.deb
sudo dpkg -i libodbc-ruby1.8_0.9995-1_amd64.deb

set :user do
  default_user = `whoami`.chomp
  Capistrano::CLI.ui.ask("[cap] SSH User: ") {|q| q.default = default_user}
end

Capistrano::CLI.ui.ask("Choose your environment: ") do |q|
  q.in = ["development", "test", "production"]
end

envs = {
  "1" => 'development', "2" => 'test', "3" => 'production'
}
set :env do
  str = "[cap] Choose environment #{envs.keys.sort.map{|v| v.to_s + ') ' + envs[v] }.join(', ')} : "
  converter = lambda {|a| envs[a] || a }
  Capistrano::CLI.ui.ask(str, converter)
end

$ cap deploy
[cap] Choose environment 
  ... 1) development, 2) test, 3) production :

class HighLine::Question
  def append_default()
    @question << "(default: #{@default.inspect} ) "
  end
end

Signal.trap(:INT) do
  abort "\n[cap] Inturrupted..."
end

namespace :hoge do
  configure = lambda do
    set :user, "udzura"
    server "hoge.udzura.com", :app
    # ......
  end
 
  before "hoge:deploy", &configure
  before "hoge:deploy:cron", &configure
  before "hoge:deploy:backend", &configure
 
  namespace :deploy do
    desc "あとは通常どおりのタスク記述、共通の変数が使える"
    task :default do
      ...
    end
  end
end

cmd = <<-"EOC"
  mkdir -p \
    /usr/local/hoge \
    /usr/local/fuga \
    /usr/local/piyo/poyo \
    /var/www/foo
EOC
sudo cmd

cmd = (<<-"EOC").split.join(" ")
  mkdir -p \
    /usr/local/hoge \
    /usr/local/fuga \
    /usr/local/piyo/poyo \
    /var/www/foo
EOC
sudo cmd

HogeTuple = Struct.new(:name, :value)

class HogeTuple < Struct.new(:name, :value)
end

class HogeTuple < Struct.new(:name, :value)
  def inspect
    "<#{self.class} name: #{self.name.inspect} value: #{self.value.inspect}>"
  end
end

HogeTuple = Struct.new(:name, :value) do
  def inspect
    "<#{self.class} name: #{self.name.inspect} value: #{self.value.inspect}>"
  end
end