ウェブ-HACKS 「とりあえずやってみよう！」ブログでタグ「Rails」が付けられているもの

user_agent = @request.user_agent
puts user_agent   #=> Mozilla/5.0 (Windows; U; Windows NT 5.1; ja; rv:1.8.1.12) Gecko/20080201 Firefox/2.0.0.12 

<% if /agent/ =~ @request.user_agent -%>
  処理
<% end -%>

• UserAgent in Ruby on Rails

$ ruby script/plugin install http://svn.rails2u.com/public/plugins/trunk/active_heart/

+ ./active_heart/init.rb
+ ./active_heart/lib/active_record_messages_ja.rb
+ ./active_heart/lib/iso2022jp_mailer.rb
+ ./active_heart/lib/trans_sid.rb

例）
class Bookmark < ActiveRecord::Base
  set_field_names :title => 'タイトル', :url => 'URL'
  validates_presence_of :title, :url, 
                        :message => "が未入力です"
end

warn 'ActiveHeart is obsolute plugin!'
warn 'Please use Ruby-GetText or jpmobile'

require_dependency 'active_record_messages_ja'if defined? ActiveRecord::Base
# Comment Out!
#require_dependency 'trans_sid'
#require_dependency 'iso2022jp_mailer' if defined? ActionMailer::Base

• Rubyist Magazine - RubyOnRails を使ってみる 【第 5 回】 ActiveHeart

    if @item.save
      flash[:notice] = 'Item was successfully created.'
      redirect_to("http://www.sample.com/") 
    else
      render :action => 'new'
    end

• コントローラーに以下メソッドをprivateメソッドとして準備しました。

  def sendmail(title, content, mail)
    email = RMailer.create_sent( title, content, to )
    email.set_content_type("text/html")
    ScrapMailer.deliver(email)
  end

• まずはユーザ登録（メールアドレスとパスワードくらいで十分でしょう）
• URLを入力するとサーバに保存できる
• どこからでも登録したサイトが確認できて、ブックマークと違いリンクが消えていることがない（データをサーバに保存するから）

    # Include your application configuration below
    ActionMailer::Base.delivery_method = :smtp
    ActionMailer::Base.server_settings = {
      :address  => "address",
      :port  => 25,
      :domain  => 'domain',
      :user_name  => 'user_name',
      :password  => 'password',
      :authentication  => :login
        }

    $ ruby script/generate mailer AccountMailer sent
          exists  app/models/
          create  app/views/account_mailer
          exists  test/unit/
          create  test/fixtures/account_mailer
          create  app/models/account_mailer.rb
          create  test/unit/account_mailer_test.rb
          create  app/views/account_mailer/sent.rhtml
          create  test/fixtures/account_mailer/sent

 
   $ ruby script/generate mailer AccountMailer sent
          exists  app/models/
          create  app/views/account_mailer
          exists  test/unit/
          create  test/fixtures/account_mailer
          create  app/models/account_mailer.rb
          create  test/unit/account_mailer_test.rb
          create  app/views/account_mailer/sent.rhtml
          create  test/fixtures/account_mailer/sent

※mytask/app/views/account_mailer/sent.rhtml を編集する

    def sendmail
      @user = User.find(params[:id])
      AccountMailer.deliver_sent(@user)
    end

• まずはrootユーザに変更

    $ su - root
    Password:

• gemでlogin_generatorをインストールする

# gem install login_generator
Bulk updating Gem source index for: http://gems.rubyforge.org
Successfully installed login_generator-1.2.2

• インストールが正常に完了したら、以下コマンドで作成開始

 $ ruby script/generate login account
      create  lib/login_system.rb
      create  app/controllers/account_controller.rb
      create  test/functional/account_controller_test.rb

$ ruby script/generate scaffold  --help
Usage: script/generate scaffold ModelName [ControllerName] [action, ...]

Rails Info:
    -v, --version                    Show the Rails version number and quit.
    -h, --help                       Show this help message and quit.

General Options:
    -p, --pretend                    Run but do not make any changes.
    -f, --force                      Overwrite files that already exist.
    -s, --skip                       Skip files that already exist.
    -q, --quiet                      Suppress normal output.
    -t, --backtrace                  Debugging: show backtrace on errors.
    -c, --svn                        Modify files with subversion. (Note: svn must be in path)
・・・省略

$ ruby script/generate scaffold project mytask
      exists  app/controllers/
      exists  app/helpers/
      exists  app/views/mytask
      exists  app/views/layouts/
      exists  test/functional/
  dependency  model
      exists    app/models/
      exists    test/unit/
      exists    test/fixtures/
・・・省略

• mytask_development
• mytask_test
• mytask_production

    mysql> create database mytask_development;
    mysql> create database mytask_production;
    mysql> grant all on mytask_development.* to username@localhost identified by 'password';
    mysql> grant all on mytask_production.* to username@localhost identified by 'password';

    create table projects (
      id int unsigned auto_increment,
      name varchar(128) not null,
      content varchar(255),
      task_count int default 0,
      status enum('close','open') default 'close',
      created_at timestamp,
      updated_at timestamp,
      limited_at timestamp,
      primary key  (id),
      index status_idx (status)
    );

    create table tasks (
      id int unsigned auto_increment,
      project_id int unsigned not null,
      name varchar(128) not null,
      content text,
      status enum('yet', 'exec', 'finish') default 'yet',
      created_at timestamp,
      updated_at timestamp,
      limited_at timestamp,
      primary key  (id),
      index project_id_idx (project_id),
      index status_idx (status)
    );

development:
  adapter: mysql
  database: mytask_development
  username: username
  password: password
  socket: /var/lib/mysql/mysql.sock
  encoding: utf8

#KCODE = 'u'
# Be sure to restart your web server when you modify this file.

$ rails mytask
      create  app/controllers
      create  app/helpers
      create  app/models
      create  app/views/layouts
      create  config/environments
      create  components
      create  db
      ・・・省略

$ cd mytask/
$ ruby script/server
=> Booting WEBrick...
=> Rails application started on http://0.0.0.0:3000

$ ruby -v
ruby 1.8.5 (2007-09-24 patchlevel 114) [i386-linux] 

$ mysql --version
mysql  Ver 14.12 Distrib 5.0.27, for redhat-linux-gnu (i686) using readline 5.0

    $ tar xvzf rubygems-0.9.4.tgz
    $ ls
    rubygems-0.9.4  rubygems-0.9.4.tgz
    $ cd rubygems-0.9.4
    $ ls
    ChangeLog  LICENSE.txt  Rakefile  TODO  doc       gemspecs  pkgs             redist   setup.rb
    GPL.txt    README       Releases  bin   examples  lib       post-install.rb  scripts  test

    # su - root
    # ruby setup.rb

# gem install rails --include-dependencies
$ rails -v
Rails 1.2.4

次回こそ、Railsでアプリ作成に入ります。

1. タスクを書き出せる（リストで見れる）
2. タスクに期限を設定できる
3. タスクには、未着手、実行中、完了等のステータスがある
4. メールで期限がきたら教えてくれる
5. カテゴリごとにタスクを纏められる
6. タスクは共有できる
7. 完了までにかかった時間を確認できる