ogagaga

Ruby 逆引きレシピ すぐに美味しいサンプル&テクニック 232 (PROGRAMMER’S RECIPE) # 作者: 島田浩二,設樂洋爾,村田賢太,前田智樹,谷口文威 # 出版社/メーカー: 翔泳社 # 発売日: 2009/07/25 商品詳細を見る

ogagagaMacBook-478:~ ogagaga$ sudo gem install icalendar
Password:
PostInstall.txt
Successfully installed icalendar-1.1.5
1 gem installed
Installing ri documentation for icalendar-1.1.5...
Installing RDoc documentation for icalendar-1.1.5...

#ドキュメント参照
#==========================================================================
# Ruby逆引きレシピ 010 RubyGems でインストールしたパッケージのドキュメントを参照したい
#==========================================================================
ogagagaMacBook-478:~ ogagaga$ gem server
Starting gem server on http://localhost:8808/

#==========================================================================
# Ruby逆引きレシピ 139 iCalendar 形式のデータを読み書きしたい
#==========================================================================

require 'rubygems' # Unless you install from the tarball or zip.
require 'icalendar'
require 'date'
require 'kconv'

require 'pp' # for debug


include Icalendar # Probably do this in your class to limit namespace overlap

# Create a calendar with an event (standard method)
cal = Icalendar::Calendar.new

# ブロック内で定義されたイベントをカレンダーに追加する
cal.event do
dtstart Date.new(2010, 12, 03)
dtend Date.new(2010, 12, 05)
summary "札幌Ruby会議03"
description "地域Ruby会議(Regional RubyKaigi;りーじょなるるびーかいぎ)"
klass "PRIVATE"
end

# iCalendar 形式へ変換！
cal.to_ical

pp(cal)

# ogagagaMacBook-478:src ogagaga$ ruby icalendar_sample.rb
# ## @components=
# {:events=>
# [## @components={},
# @name="VEVENT",
# @properties=
# {"sequence"=>0,
# "ip_class"=>"PRIVATE",
# "dtend"=>#,
# "dtstart"=>#,
# "uid"=>"2010-12-13T23:25:40+09:00_165775011@ogagagaMacBook-478.local",
# "dtstamp"=>#,
# "description"=>
# "地域Ruby会議(Regional RubyKaigi;りーじょなるるびーかいぎ)",
# "summary"=>"札幌Ruby会議03"}>]},
# @name="VCALENDAR",
# @properties=
# {"version"=>"2.0", "calscale"=>"GREGORIAN", "prodid"=>"iCalendar-Ruby"}>

# 既存のeventオブジェクトを追加する方法
cal = Icalendar::Calendar.new

event = Icalendar::Event.new
event.dtstart = Date.new(2010, 12, 03)
event.dtend = Date.new(2010, 12, 05)
event.summary = "札幌Ruby会議03"
event.description = "地域Ruby会議(Regional RubyKaigi;りーじょなるるびーかいぎ)"
event.klass = "PRIVATE"

cal.add_event(event)

pp(cal)

# ## @components=
# {:events=>
# [## @components={},
# @name="VEVENT",
# @properties=
# {"sequence"=>0,
# "ip_class"=>"PRIVATE",
# "dtend"=>#,
# "dtstart"=>#,
# "uid"=>"2010-12-13T23:25:40+09:00_120918459@ogagagaMacBook-478.local",
# "dtstamp"=>#,
# "description"=>
# "地域Ruby会議(Regional RubyKaigi;りーじょなるるびーかいぎ)",
# "summary"=>"札幌Ruby会議03"}>]},
# @name="VCALENDAR",
# @properties=
# {"version"=>"2.0", "calscale"=>"GREGORIAN", "prodid"=>"iCalendar-Ruby"}>

# ファイルに落とす
# http://ja.wikipedia.org/wiki/ICalendar
# によると拡張子は.ical; .ics; .ifb; .icalendar
File.open("recipe_sample.ics", "w+b") do |f|
f.write(cal.to_ical.toutf8)
end

# iCalendar 形式のファイルを解析する
File.open("recipe_sample.ics") do |f|
cal = Icalendar.parse(f).first
event = cal.events.first

pp(event.dtstart)
pp(event.description)
end

# #
# "地域Ruby会議(Regional RubyKaigi;りーじょなるるびーかいぎ)"

# おまけ
# =============================================================================
# Ruby逆引きレシピ 040 ユニークな識別子（UUID）を生成したい
# =============================================================================
# ファイル名を一意にしてみます。
# gem install uuidtools
require 'uuidtools'

File.open("recipe_sample_#{UUIDTools::UUID.timestamp_create}.ics", "w+b") do |f|
f.write(cal.to_ical.toutf8)
end

# recipe_sample_190d9a24-06c9-11e0-a117-002500fffecc.ics が出来上がり。