Rails6 でTodoApp作るぜ part7 タイムゾーンを日本時間にする

今回は、超絶簡単。

config.time_zone = 'Asia/Tokyo' を追加するだけです！

[ config/application.rb ]

require_relative 'boot'

require 'rails/all'

# Require the gems listed in Gemfile, including any gems
# you've limited to :test, :development, or :production.
Bundler.require(*Rails.groups)

module TodoApp
  class Application < Rails::Application
    # Initialize configuration defaults for originally generated Rails version.
    config.load_defaults 6.0
    config.time_zone = 'Asia/Tokyo'   # 追加

    # Settings in config/environments/* take precedence over those specified here.
    # Application configuration can go into files in config/initializers
    # -- all .rb files in that directory are automatically loaded after loading
    # the framework and any gems in your application.
  end
end

以上！

変更後 ->

表示形式を変更する

l メソッドを使います

まず、config/application.rbにtime_zoneとi18nを設定します。

require_relative 'boot'

require 'rails/all'

# Require the gems listed in Gemfile, including any gems
# you've limited to :test, :development, or :production.
Bundler.require(*Rails.groups)

module TodoApp
  class Application < Rails::Application
    # Initialize configuration defaults for originally generated Rails version.
    config.load_defaults 6.0
    config.time_zone = 'Asia/Tokyo'
    config.i18n.default_locale = :ja
    # Settings in config/environments/* take precedence over those specified here.
    # Application configuration can go into files in config/initializers
    # -- all .rb files in that directory are automatically loaded after loading
    # the framework and any gems in your application.
  end
end

そしたら、ja.ymlに変更を加える

[ config/locales/ja.yml ]

ja:
  ~~~~~~~
  time:
    formats:
      default: "%Y年%m月%d日"

フォーマットは自由に設定できます。

あとは、各ビューページの表示したい場所にlをつけるだけです。

 tbody
    - @tasks.each do |task|
      tr
        td = task.done? ? 'Done' : 'Todo'
        td = link_to task.title, task
        td = l task.created_at
        td = l task.updated_at
        td

こんな感じ〜

以上だ