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foosin id:foosin

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Rubyist Magazine -RubyOnRails ã‚’ä½¿ã£ã¦ã¿ã‚‹ -ç¬¬3å›ž ActiveRecord
ã€Žã‚‹ã³ã¾ã€ã¯ã€Ruby ã«é–¢ã™ã‚‹æŠ€è¡“è¨˜äº‹ã¯ã‚‚ã¡ã‚ã‚“ã®ã“ã¨ã€Rubyist ã¸ã®ã‚¤ãƒ³ã‚¿ãƒ“ãƒ¥ãƒ¼ã‚„ã‚¨ãƒƒã‚»ã‚¤ã€ãã®ä»–ã‚’ãŠå±Šã‘ã™ã‚‹ã‚¦ã‚§ãƒ–é›‘èªŒã§ã™ã€‚ Rubyist Magazine ã«ã¤ã„ã¦ ã€ŽRubyist Magazineã€ã€ç•¥ã—ã¦ã€Žã‚‹ã³ã¾ã€ã¯ã€æ—¥æœ¬ Ruby ã®ä¼šã®æœ‰å¿—ã«ã‚ˆã‚‹ Rubyist ã® Rubyist ã«ã‚ˆã‚‹ã€Rubyist ã¨ãã†ã§ãªã„äººã®ãŸã‚ã®ã‚¦ã‚§ãƒ–é›‘èªŒã§ã™ã€‚ æœ€æ–°å· Rubyist Magazine 0058 å· ãƒãƒƒã‚¯ãƒŠãƒ³ãƒãƒ¼ Rubyist Magazine 0058 å· RubyKaigi 2018 ç›´å‰ç‰¹é›†å· Rubyist Magazine 0057 å· RubyKaigi 2017 ç›´å‰ç‰¹é›†å· Rubyist Magazine 0056 å· Rubyist Magazine 0055 å· Rubyist Magazine 0054 å· æ±äº¬ Ruby ä¼šè° 11 ç›´
foosin 2009/06/13
ActiveRecord

codereading
ãƒªãƒ³ã‚¯
http://www.trashsuite.org/?ActiveRecord
foosin 2009/06/12
ActiveRecord
ãƒªãƒ³ã‚¯
ActiveRecordã‚’ä½¿ã£ãŸã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ã‚’èªã‚‚ã† ï¼ˆ1/4ï¼‰ï¼ ï¼ IT
ç¬¬3å›žã€€ActiveRecordã‚’ä½¿ã£ãŸã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ã‚’èªã‚‚ã† å€‰è²« ç¾©äºº æ¾æ‘ ç« å¼˜ TISæ ªå¼ä¼šç¤¾ SonicGarden 2009/1/28 å„ªã‚ŒãŸãƒ—ãƒã‚°ãƒ©ãƒžã¯ã‚³ãƒ¼ãƒ‰ã‚’æ›¸ãã®ã¨åŒã˜ãã‚‰ã„ã€ã‚³ãƒ¼ãƒ‰ã‚’èªã¿ã“ãªã›ãªãã¦ã¯ãªã‚‰ãªã„ã€‚å„ªã‚ŒãŸã‚³ãƒ¼ãƒ‰ã‚’èªã‚€ã“ã¨ã§ã€è‡ªèº«ã®ã‚¹ã‚ãƒ«ã‚‚ä¸Šé”ã™ã‚‹ã®ã ï¼ˆç·¨é›†éƒ¨ï¼‰ ã“ã‚Œã¾ã§ã®2å›žã®è¨˜äº‹ã§ã€Railsã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã®åŸºæœ¬çš„ãªæ§‹æˆã¨ã€ãƒ†ã‚¹ãƒ†ã‚£ãƒ³ã‚°ãƒ•ãƒ¬ãƒ¼ãƒ ãƒ¯ãƒ¼ã‚¯ã§ã‚ã‚‹RSpecã‚’ä½¿ã£ãŸã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ã®ã‚³ãƒ¼ãƒ‰ãƒªãƒ¼ãƒ‡ã‚£ãƒ³ã‚°ã‚’è¡Œã£ã¦ãã¾ã—ãŸã€‚ä»Šå›žã¯ã€Railsã®ã‚ãƒ¢ã§ã‚‚ã‚ã‚‹DBã‚¢ã‚¯ã‚»ã‚¹å‡¦ç†ã®éƒ¨åˆ†ã‚’æ‰±ã†ActiveRecordã‚’æ·±ãæŽ˜ã‚Šä¸‹ã’ã¦ã‚³ãƒ¼ãƒ‰ãƒªãƒ¼ãƒ‡ã‚£ãƒ³ã‚°ã‚’è¡Œã„ã¾ã™ã€‚ ActiveRecordã¨ã¯ã€ã¾ã•ã—ãåŒåã®â€œActive Recordâ€ã¨ã„ã†DBã‚¢ã‚¯ã‚»ã‚¹ã«é–¢ã™ã‚‹ãƒ‡ã‚¶ã‚¤ãƒ³ãƒ‘ã‚¿ãƒ¼ãƒ³ã‚’å®Ÿè£…ã—ãŸãƒ©ã‚¤ãƒ–ãƒ©ãƒªã§ã™ã€‚ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã®ãƒ†ãƒ¼ãƒ–ãƒ«ã‚’ã‚¯ãƒ©ã‚¹ã¨ã—ã¦ãƒ“ã‚¸ãƒã‚¹ãƒã‚¸ãƒƒã‚¯ã‚’æŒãŸã›ã€ãƒ†ãƒ¼
foosin 2009/06/12
ActiveRecord
ãƒªãƒ³ã‚¯
http://www.func09.com/wordpress/archives/577
foosin 2009/06/12
ActiveRecord

rails

ruby

serialize
ãƒªãƒ³ã‚¯
83's : Railsä»¥å¤–ã§Railsã®migrationã‚’ä½¿ã†
Railsä»¥å¤–ã§DBã®ãƒ†ãƒ¼ãƒ–ãƒ«ä½œã‚‹ã¨ãã«ã€ Railsã®migrationã§ãªã„ã¨æˆ‘æ…¢ã§ããªã„æ‚£è€…ã•ã‚“ã¯ã„ã¾ã™ã‹ã€‚ (;Â´Ð”`)ï¾‰ ãƒ¡ãƒ¢ã£ã¨ãã€‚ % rake migrate % rake migrate VERSION=0 ã¨ã‹ã—ãŸã„ã®ã§ã€Rakefileã‚’ä½œã‚‹ã€‚ # Rakefile require "rubygems" require "active_record" ActiveRecord::Base.establish_connection(...çœç•¥...) # ã‚»ãƒƒãƒˆã—ã¦ãªã„ã¨nil.infoã§è½ã¡ã‚‹ã‹ã‚‰æ³¨æ„ require 'logger' ActiveRecord::Base.logger = Logger.new(STDOUT) task :migrate do ActiveRecord::Migrator.migrate('db/migrate', ENV["VERS
foosin 2009/06/10
ActiveRecord
ãƒªãƒ³ã‚¯
ãªã‚“ã‹ã°ã‚“ã–ã„ | RailsæŠœãã®ActiveRecordã«å†æŒ‘æˆ¦
ã„ã¾ã„ã¡Railsã®æ©Ÿèƒ½ã¨ActiveRecordã®æ©Ÿèƒ½ã‚’åŒºåˆ¥ã§ãã¦ãªã„ã€‚create_tableã§ãƒ†ãƒ¼ãƒ–ãƒ«å®šç¾©ã—ã¦# rake migrateãªã‚“ã‹ã—ã¦ã‚‚ã€Rubyçš„ã«ã¯æ„å‘³ä¸æ˜Žã¿ãŸã„ã ã€‚ã“ã‚Œã¯ãŸã¶ã‚“Railsã®æ©Ÿèƒ½ã€‚ãŸã¶ã‚“ã€‚ãŠãã‚‰ãã€‚ ãƒžã‚¤ã‚°ãƒ¬ãƒ¼ã‚·ãƒ§ãƒ³ã¯é¢å€’ãã†ã ã£ãŸã®ã§ã¾ãšã¯O/Rãƒžãƒƒãƒ”ãƒ³ã‚°ã‹ã‚‰æ”»ã‚ã¦ã„ãã“ã¨ã«ã™ã‚‹ã€‚ Rubyã‹ã‚‰SQLite3ã‚’æ“ä½œã™ã‚‹ sudo apt-get install ruby1.8-dev sqlite3 ã¨ã‹sudo gem install sqlite3 active_recordã—ã¦ãŠãã€‚æº–å‚™ãŒå‡ºæ¥ãŸã‚‰ã“ã†æ›¸ãã€‚ require "rubygems" require "sqlite3" sql=<<SQL CREATE TABLE students ( id INTEGER PRIMARY KEY NOT NULL UNIQUE, test_tex
foosin 2009/06/10
ActiveRecord
ãƒªãƒ³ã‚¯
é‡Žãƒã‚°ã¯ãƒŽãƒã‚ãƒ¥ã‚¢MaxHeart - Railsä»¥å¤–ã®ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã§ActiveRecord::Migrationã‚’ä½¿ã†ã€‚
_ Railsä»¥å¤–ã®ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã§ActiveRecord::Migrationã‚’ä½¿ã†ã€‚ æ™®æ®µRailsã§é–‹ç™ºã—ã¦ãŸã‚Šã™ã‚‹ã¨ã€å°ç‰©ã®ã‚¹ã‚¯ãƒªãƒ—ãƒˆæ›¸ãã¨ãã§ã‚‚ã€ActiveRecordã¨ã‹migrationãŒä½¿ã„ãŸããªã‚‹ãƒ•ãƒ¬ãƒ¼ãƒ ãƒ¯ãƒ¼ã‚¯ç—…ã«ãªã‚Šã¾ã™ã€‚ ã‚¢ãƒ—ãƒªè‡ªä½“ã§ActiveRecordã‚’ä½¿ã†ã‹ã©ã†ã‹ã¯ç½®ã„ã¦ãŠã„ã¦ï¼ˆå¤§æŠµä½¿ã£ã¡ã‚ƒã†ã®ã§ã™ãŒï¼‰ã€DBã®ã‚¹ã‚ãƒ¼ãƒžã¨ã‹é¢å€’ã§ã™ã€‚ ã‚ãƒ¼Rails+sqliteãªã‚‰ã‚®ã‚¬ãƒˆãƒ³æ¥½ãªã®ã«ã€œã¨ã‹è€ƒãˆã¡ã‚ƒã†ã®ã§ã€Railsä»¥å¤–ã§ã‚‚rake db:migrationãŒä½¿ãˆã‚‹ã‚ˆã†ã«ã—ã¦ä½¿ã£ã¦ã¾ã™ã€‚ APP/db/migration/* ã“ã“ã«Railsã‚¢ãƒ—ãƒªã¨åŒã˜ã‚ˆã†ã«ActiveRecord::Migrationã®åä¾›é”ã‚’é…ç½®ã—ã¾ã™ã€‚ 001_create_users.rb 002_create_blogs.rb ã¿ãŸã„ãªæ„Ÿã˜ã§ã€‚ APP/config/boot.r
foosin 2009/06/10
ActiveRecord

migration
ãƒªãƒ³ã‚¯
ActiveRecordã«ç½®ãæ›ãˆã‚‰ã‚ŒãŸfind_allãƒ¡ã‚½ãƒƒãƒ‰
ActiveRecordã¯ï¼ŒRubyã®å‹•çš„ãªæ€§è³ªã‚’å˜åˆ†ã«ä½¿ã£ã¦ä½œã‚‰ã‚ŒãŸï¼Œéžå¸¸ã«åˆ©ä¾¿æ€§ã®é«˜ã„ãƒ©ã‚¤ãƒ–ãƒ©ãƒªã ã¨æ€ã†ã€‚ActiveRecordã‚’Javaã«ã‚³ãƒ”ãƒ¼ã™ã‚‹ã“ã¨ã¯ï¼Œãã£ã¨ã§ããªã„ã ã‚ã†ã€‚ã—ã‹ã—ï¼Œæ™‚ã«åˆå¿ƒè€…(ä»Šã®åƒ•)ã¯ï¼Œãã®å‹•çš„ãªç‰¹å¾´æ•…ã«ï¼ŒæœŸå¾…ã—ãŸé€šã‚Šã®å‹•ãã«ãªã‚‰ãšã«è‹¦æˆ¦ã™ã‚‹ã“ã¨ãŒå¤šã„ã€‚ ActiveRecordã‚’ä½¿ãˆã°ï¼Œãƒ¢ãƒ‡ãƒ«é–“ã®é–¢é€£ã¨ãã‚Œã«é–¢ã™ã‚‹æ“ä½œã‚’æ•°è¡Œã§å®šç¾©ã™ã‚‹ã“ã¨ãŒã§ãã‚‹ã€‚ä¾‹ãˆã°ï¼Œéƒ¨ç½²ã‚’è¡¨ã™Divisionãƒ¢ãƒ‡ãƒ«ã¨ï¼Œéƒ¨ç½²ã«æ‰€å±žã™ã‚‹ç¤¾å“¡ã‚’è¡¨ã™Employeeãƒ¢ãƒ‡ãƒ«ãŒã‚ã£ãŸå ´åˆï¼Œ class Division < ActiveRecord::Base has_many :employees end class Employee < ActiveRecord::Base belongs_to :division end ã¨ã—ã¦ã‚ã’ã‚Œã°ï¼Œ div = Division.find(1) di
foosin 2009/03/02
ActiveRecord
ãƒªãƒ³ã‚¯
ActiveRecord ã®ãŠå‹‰å¼· - elm200 ã®æ—¥è¨˜(æ—§ã¯ã¦ãªãƒ€ã‚¤ã‚¢ãƒªãƒ¼)
Rails ã‚’å‹‰å¼·ã™ã‚‹ï¼ã¨ã“ã®ãƒ–ãƒã‚°ã‚’ç«‹ã¡ä¸Šã’ã¦ä»¥æ¥ã€æ®‹å¿µãªãŒã‚‰ Rails ã®å‹‰å¼·ã¯ã‚ã¾ã‚Šé€²ã‚“ã§ã„ãªã„ã€‚ãã®å¤§ããªç†ç”±ã¯ã€Rails ã¯ã‹ãªã‚Šå¤§ãã„ãƒ•ãƒ¬ãƒ¼ãƒ ãƒ¯ãƒ¼ã‚¯ã ã‹ã‚‰ã§ã¯ãªã„ã‹ã€‚Javaã§è¨€ã£ãŸã‚‰ Struts + Hybernate + JUnit ã¨ã„ã£ãŸæ„Ÿã˜ã§ã€ãƒ•ãƒ¬ãƒ¼ãƒ ãƒ¯ãƒ¼ã‚¯æ•°å€‹åˆ†ã«ç›¸å½“ã™ã‚‹ã®ã ã€‚ å€‹äººçš„ãªæ„Ÿæƒ³ã¨ã—ã¦ã¯ã€ä¸ã§ã‚‚ Model éƒ¨åˆ†ã«ç›¸å½“ã™ã‚‹ O/R ãƒžãƒƒãƒ‘ãƒ¼ã® ActiveRecord ãŒã‚ˆãã§ãã¦ã„ã‚‹ã¨æ„Ÿã˜ãŸã€‚ãã“ã§ã€ã‚‹ã³ã¾ã®è¨˜äº‹ãªã©ã‚’å‚è€ƒã« ActiveRecord ã®å¦ç¿’ã«æŒ‘æˆ¦ã€‚ ActiveRecord::Base ã® rdoc ãŒéžå¸¸ã«ã‚ã‹ã‚Šã‚„ã™ã„ã€‚ã“ã‚Œã¯ã€(Ruby ã®ãƒ«ãƒ¼ãƒˆãƒ‡ã‚£ãƒ¬ã‚¯ãƒˆãƒªï¼‰/lib/ruby/gems/1.8/doc/activerecord(ãƒãƒ¼ã‚¸ãƒ§ãƒ³)/rdoc/index.htmlã‹ã‚‰æŽ¢ã—ã ã›ã‚‹ã€‚ ActiveRecord::Bas
foosin 2009/01/16
findã¨ã‹

rails

ActiveRecord
ãƒªãƒ³ã‚¯
2007-05-11
find_by_*ã§å±žæ€§ã‚’æ¡ä»¶ã«ãƒ‡ãƒ¼ã‚¿ã‚’æ¤œç´¢ã§ãã¾ã™ã€‚ find_by_* å±žæ€§ã‚’æ¡ä»¶ã«ã—ã¦ã€ãã‚Œã«ãƒžãƒƒãƒã™ã‚‹æœ€åˆã®ãƒ‡ãƒ¼ã‚¿ã‚’å–å¾— find_all_by_* å±žæ€§ã‚’æ¡ä»¶ã«ã—ã¦ã€ãã‚Œã«ãƒžãƒƒãƒã™ã‚‹ãƒ‡ãƒ¼ã‚¿ã‚’ã™ã¹ã¦å–å¾— ãƒ‡ãƒ¼ã‚¿ ãƒ†ãƒ¼ãƒ–ãƒ«å®šç¾©: CREATE TABLE kittens ( id int(11) NOT NULL auto_increment PRIMARY KEY, name VARCHAR(255), color VARCHAR(255), age int(4) ); ãƒ‡ãƒ¼ã‚¿: mysql> select * from kittens; +----+-------+-------+------+ | id | name | color | age | +----+-------+-------+------+ | 1 | mii | gray | 1 | | 2 | tora |
foosin 2009/01/12
find_by_ã®èª¬æ˜Ž

ActiveRecord
ãƒªãƒ³ã‚¯
brass.to - a really cool domain parked on Park.io
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foosin 2008/12/20
findã¨find_by_idã®ãã‚Œãžã‚Œã§æ¤œç´¢ã«ãƒ’ãƒƒãƒˆã—ãªã‹ã£ãŸã¨ãã®æŒ™å‹•ã®é•ã„

rails

ActiveRecord
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FFTT : Railsã®Migration
ãªã‚“ã§ã™ã‹ã“ã‚Œã¯ ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹æ§‹é€ ã‚’ãƒãƒ¼ã‚¸ãƒ§ãƒ³ç®¡ç†ã™ã‚‹ä»•çµ„ã¿ SQLã§ã¯ãªãRubyã®ã‚³ãƒ¼ãƒ‰ã§ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹æ§‹é€ ã‚’è¨˜è¿°ã™ã‚‹ã“ã¨ã«ã‚ˆã£ã¦æŠ½è±¡åŒ– æœ¬ç•ªç’°å¢ƒã¸ã®å¤‰æ›´ã®é©ç”¨æ¼ã‚ŒãŒãªããªã‚‹ ã»ã‹ã®é–‹ç™ºç’°å¢ƒã‚„æ¤œè¨¼ç’°å¢ƒã¸ã®å¤‰æ›´ã®é©ç”¨ãŒãƒãƒƒãƒãƒª å¿…è¦ãŒã‚ã‚Œã°ä»¥å‰ã®ãƒãƒ¼ã‚¸ãƒ§ãƒ³ã«æˆ»ã›ã‚‹ è¤‡æ•°ã®ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã‚¨ãƒ³ã‚¸ãƒ³ã¸ã®å¯¾å¿œãŒç°¡å˜ã«ã§ãã‚‹ MySQL, PostgreSQL, SQLite, SQL Server, Sybase, Oracle (ãƒ¡ã‚¸ãƒ£ãƒ¼ãªã‚‚ã®ã¯DB2ä»¥å¤–ãœã‚“ã¶ã ã£ã¦) ã©ã†ã¤ã‹ã„ã¾ã™ã‹ $ svn up $ rake migrate ã‚»ãƒƒãƒˆã§ä½¿ã†ã€‚ ã“ã‚Œã§æ‰‹å…ƒã®é–‹ç™ºç’°å¢ƒã®ã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ã¨ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã®æ§‹é€ ãŒæœ€æ–°ã®ã‚‚ã®ã«ãªã‚‹ã€‚ ä»•çµ„ã¿ schema_infoã¨ã„ã†ãƒ†ãƒ¼ãƒ–ãƒ«ã¨Migrationå®šç¾©ãƒ•ã‚¡ã‚¤ãƒ«ã®åå‰ã§ãƒãƒ¼ã‚¸ãƒ§ãƒ³ç®¡ç† Migrationé–¢é€£ã®æ“ä½œ rake db:schema:dump (r
foosin 2008/11/22
rails

migration

ActiveRecord
ãƒªãƒ³ã‚¯
ãƒ½( ãƒ»âˆ€ãƒ»)ãƒŽãã¾ãã¾ãƒ¼(2005-08-17) Migration
â— [rails] Migration ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã®ã‚¹ã‚ãƒ¼ãƒž(å¤‰æ›´)ã‚’ç®¡ç†ã™ã‚‹æ©Ÿèƒ½ã§ã™ã€‚ã‚‚ã‚Œãªãã“ã‚“ãªç‰¹å…¸ãŒã¤ã„ã¦ãã¾ã™ã€‚ é‹ç”¨ç’°å¢ƒã§ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã®ãƒãƒ¼ã‚¸ãƒ§ãƒ³ã‚’ä¸Šã’ã‚‹ã¨ãã«ã€ã‚¹ã‚ãƒ¼ãƒžå¤‰æ›´ã®æ¼ã‚ŒãŒãªããªã‚‹ã€‚ å…±åŒé–‹ç™ºè€…ãŒã„ã‚‹å ´åˆã€rake ä¸€ç™ºã§è‡ªåˆ†ã®ã¨ã“ã‚ã«ã‚¹ã‚ãƒ¼ãƒžå¤‰æ›´ã‚’åæ˜ ã§ãã‚‹ã€‚(svn update ã¨ rake migrate ã¯ãƒ¯ãƒ³ã‚»ãƒƒãƒˆâ™ª) ãƒãƒ¼ã‚¸ãƒ§ãƒ³ã‚³ãƒ³ãƒˆãƒãƒ¼ãƒ«ã•ã‚Œã‚‹ã®ã§ã€Migrationã§ç®¡ç†ã—ã¦ã„ã‚‹ä»»æ„ã®æ™‚ç‚¹ã®ã‚¹ã‚ãƒ¼ãƒžã«æˆ»ã™ã“ã¨ãŒå¯èƒ½ã€‚ ã‚¹ã‚ãƒ¼ãƒžå¤‰æ›´ã¯ ActiveRecord::Migration ã®ã‚µãƒ–ã‚¯ãƒ©ã‚¹ã‚’ä½œã£ã¦å®šç¾©ã—ã¾ã™ã€‚ãƒªãƒ“ã‚¸ãƒ§ãƒ³ç®¡ç†ã—ã¦ã„ã¾ã™ã®ã§ã€å„ãƒãƒ¼ã‚¸ãƒ§ãƒ³æ¯Žã«1ã¤ã®ã‚¯ãƒ©ã‚¹ã‚’è¿½åŠ ã™ã‚‹ã“ã¨ã«ãªã‚Šã¾ã™ã€‚ãã®ã‚¯ãƒ©ã‚¹ã®ä¸ã§å®šç¾©ã—ãŸ up, down ã¨ã„ã†ã‚¯ãƒ©ã‚¹ãƒ¡ã‚½ãƒƒãƒ‰ã®å†…å®¹ãŒã€ãã‚Œãžã‚Œã‚¢ãƒƒãƒ—ã‚°ãƒ¬ãƒ¼ãƒ‰ã¨ãƒ€ã‚¦ãƒ³ã‚°ãƒ¬ãƒ¼ãƒ‰æ™‚ã®å‡¦ç†ã¨ã—ã¦å®Ÿè¡Œã•ã‚Œã¾ã™ã€‚Rails
foosin 2008/11/22
rails

ActiveRecord

migration
ãƒªãƒ³ã‚¯
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