[B! ActiveRecord] supermomongaã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

supermomonga id:supermomonga

ActiveRecordã«é–¢ã™ã‚‹supermomongaã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (27)

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Arel cheatsheet
users.where(users[:name].eq('amy')) # SELECT * FROM users WHERE users.name = 'amy' basic join In ActiveRecord (without Arel), if :photos is the name of the association, use joins users.joins(:photos) In Arel, if photos is defined as the Arel table, photos = Photo.arel_table users.join(photos) users.join(photos, Arel::Nodes::OuterJoin).on(users[:id].eq(photos[:user_id])) join with conditions users.
supermomonga 2023/03/12
Arel

activerecord

ruby

rails
ãƒªãƒ³ã‚¯
ActiveRecordã§æ—¥ä»˜ã”ã¨ã«group byã—ãŸã„ - æ©Ÿç•¥æˆ¦è¨˜
çµè«– Order.select("date(created_at) as ordered_date, sum(price) as total_price").group("date(created_at)") èª¬æ˜Ž Rails Guidesã¨ã„ã†ç´ æ™´ã‚‰ã—ã„è³‡æ–™ãŒã‚ã‚Šã€ãã“ã§ç´¹ä»‹ã•ã‚Œã¦ã„ã‚‹ã€‚ rails guides.jp
supermomonga 2015/11/18
ActiveRecord

Rails
ãƒªãƒ³ã‚¯
shibaraku gem ã‚’ãƒªãƒªãƒ¼ã‚¹ã—ã¾ã—ãŸ - onk.ninja
shibaraku gem ã‚’ãƒªãƒªãƒ¼ã‚¹ã—ã¾ã—ãŸ ã“ã‚Œã¯ä½•ï¼Ÿ ActiveRecord ã§æœŸé–“ã‚’æŒã¤ model ã‚’æ‰±ã† gem ã§ã™ã€‚æœŸé–“é™å®šå…¬é–‹ã‚„ã€äºˆç´„å…¬é–‹ã—ãŸã„ã¨ããªã‚“ã‹ã«ä½¿ã„ã¾ã™ã€‚ ä½œã£ãŸã®ã¯ 1 å¹´å‰ãªã‚“ã§ã™ãŒã€ãšã£ã¨ç¤¾å†… gem ã¨ã—ã¦ä½¿ç”¨ã—ã¦ã„ãŸã‚‚ã®ã‚’ rubygems.org / github.com ã«ä¸Šã’ã¾ã—ãŸã€‚ https://rubygems.org/gems/shibaraku https://github.com/onk/shibaraku USAGE åŸºæœ¬çš„ãªä½¿ã„æ–¹ start_at, end_at ã®ã‚ã‚‹ãƒ¢ãƒ‡ãƒ«ã‚’ç”¨æ„ã—ã¾ã™ã€‚ create_table :campaigns do |t| t.datetime :start_at t.datetime :end_at end shibaraku ã¨ 1 è¡Œæ›¸ãã¨ class Campaign < ActiveRe
supermomonga 2015/10/30
ActiveRecord
ãƒªãƒ³ã‚¯
Big Sky :: Re: Ruby è£½ãƒãƒƒãƒå‡¦ç†ã‚’çœãƒ¡ãƒ¢ãƒªåŒ–ã—ãŸ
Ruby è£½ãƒãƒƒãƒå‡¦ç†ã‚’çœãƒ¡ãƒ¢ãƒªåŒ–ã—ãŸ - å½¼å¥³ã‹ã‚‰ã¯ã€ãŠã„ã¡ã‚ƒã‚“ã¨å‘¼ã°ã‚Œã¦ã„ã¾ã™ å°‘ã—å‰ã« Ruby è£½ã® ãƒãƒƒãƒå‡¦ç† ã‚’çœãƒ¡ãƒ¢ãƒªåŒ–ã—ãŸã¨ãã®è©±ã‚’ãƒ¡ãƒ¢ã—ã¦ãŠãã¾ã™ã€‚ ã©ã®ã‚ˆã†ãª ãƒãƒƒãƒå‡¦ç† ã ã£ãŸã‹ å‹•ç”»å…±æœ‰ã‚µã‚¤ãƒˆ ã«ã‚¢ãƒƒãƒ—ã•ã‚ŒãŸå‹•ç”»ãŒã‚ªãƒˆãƒŠã®äº‹æƒ…ã«ã‚ˆã£ã¦å‰Šé™¤ã•ã‚Œã‚‹ã“ã¨ãŒã—ã°ã—ã°ã‚... http://blog.inouetakuya.info/entry/2015/07/26/204320 ActiveRecord ã® each ã¯å…¨ä»¶ã€find_each ã¯ãƒ‡ãƒ•ã‚©ãƒ«ãƒˆã§1000ä»¶ã‚’ã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹åŒ–ã™ã‚‹ã®ã§ã€HTML ã‚’ãƒ‘ãƒ¼ã‚¹ã—ãŸDOMãƒ„ãƒªãƒ¼ãŒ1000ä»¶ã‚‚ãƒ¡ãƒ¢ãƒªã«ä¹—ã£ãŸã‚‰ãã‚Šã‚ƒ OOM Killer ã§æ®ºã•ã‚Œã¦ã‚‚æ–‡å¥ã¯è¨€ãˆãªã„ã‹ã‚‚ã—ã‚Œãªã„ã€‚ ActiveRecord::Batches The find_each method uses find_in_batches with a bat
supermomonga 2015/07/29
ActiveRecord
ãƒªãƒ³ã‚¯
GitHub - octehren/Glasses: Search gem for ruby web apps.
Glasses is a micro search framework to be used within Ruby web applications which utilize Active Record as a part of the middleware between the app's logic and database. The gem's methods are based upon ActiveRecord's querying methods, so you can consider them to be Database agnostic, at least in an environment using a relational system such as SQLite, PostgreSQL or MySQL; the gem have not been te
supermomonga 2015/06/16
ActiveRecord
ãƒªãƒ³ã‚¯
ãã‚ãã‚ãƒãƒªãƒ¢ãƒ¼ãƒ•ã‚£ãƒƒã‚¯é–¢é€£ã«ã¤ã„ã¦ä¸€è¨€ã„ã£ã¨ãã‹ - Qiita
class Notification < ActiveRecord::Base belongs_to :notifiable, polymorphic: true end class Message < ActiveRecord::Base has_one :notification, as: :notifiable end class Like < ActiveRecord::Base has_one :notification, as: :notifiable end ä¸€è¡Œã§è‰²ã‚“ãªã‚¯ãƒ©ã‚¹ã«å¯¾ã™ã‚‹é–¢é€£ãŒæŒ‡å®šã§ãã¦ä¾¿åˆ©æ„ŸãŒã‚ã‚‹ã€‚ ã ã‹ã‚‰ã£ã¦ã€ã“ã‚Œã‚’å®‰æ˜“ã«ä½¿ã†å‰ã«ã¡ã‚ƒã‚“ã¨è€ƒãˆã‚ˆã†ã€‚ ãƒãƒªãƒ¢ãƒ¼ãƒ•ã‚£ãƒƒã‚¯é–¢é€£ã¯å˜ã«é–¢é€£ã®å®šç¾©ã‚’çœåŠ›åŒ–ã™ã‚‹ãŸã‚ã®ã‚‚ã®ã˜ã‚ƒãªã„ã€‚ ãƒãƒªãƒ¢ãƒ¼ãƒ•ã‚£ãƒƒã‚¯ã¨ã„ã†åå‰ãŒç¤ºã™æ§˜ã«ã€ã“ã‚Œã¯å¤šæ…‹æ€§ã‚’æŒã£ãŸã‚‚ã®ã«å¯¾ã™ã‚‹é–¢é€£ã‚’å®šç¾©ã™ã‚‹äº‹ã§ã‚ã£ã¦ã€ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ãƒ¼ã‚¹ã«å¯¾ã™ã‚‹é–¢é€£ã®å®šç¾©ã ã¨ã„ã†ã“ã¨
supermomonga 2015/06/02
ã“ã®è¨˜äº‹ã™ã”ãè‰¯ã„

rails

activerecord
ãƒªãƒ³ã‚¯
é™çš„ãƒ‡ãƒ¼ã‚¿ã‚„ãƒžã‚¹ã‚¿ãƒ¼ãƒ‡ãƒ¼ã‚¿ã®ç‚ºã ã‘ã«tableã‚’æŒã¤ã®ã‚’æ¢ã‚ã‚ˆã†ã€‚ active_hash ãŒä¾¿åˆ©ãã†ã - Qiita
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supermomonga 2014/12/23
activerecord

rails
ãƒªãƒ³ã‚¯
Railsã§ActiveRecordã®ä»£ã‚ã‚Šã«Mongoidã‚’ä½¿ã† - Qiita
ã¯ã˜ã‚ã« Ruby on Rails(ä»¥ä¸‹Rails)ã§Mongo DBã‚’ä½¿ã†éš›ã®ORãƒžãƒƒãƒ‘ãƒ¼ã¨ã—ã¦ç¾åœ¨ã¯MongoidãŒæ¨™æº–çš„ã«ä½¿ç”¨ã•ã‚Œã‚‹ã‚ˆã†ã«ãªã‚Šã¾ã—ãŸã€‚Mongoidã¯Active Recordã«ä¼¼ãŸAPIã‚’å‚™ãˆã€ã‹ã¤Mongo DBã®ã‚¹ã‚ãƒ¼ãƒžãƒ¬ã‚¹ã€ãƒ‰ã‚ãƒ¥ãƒ¡ãƒ³ãƒˆæŒ‡å‘ã€ãƒ€ã‚¤ãƒŠãƒŸãƒƒã‚¯ã‚¯ã‚¨ãƒªã€ã‚¢ãƒˆãƒŸãƒƒã‚¯æ“ä½œã¨ã„ã£ãŸç‰¹å¾´ã‚’Rubyã‹ã‚‰å®¹æ˜“ã«æ‰±ãˆã‚‹ã‚ˆã†ã«è¨è¨ˆã•ã‚Œã¦ã„ã¾ã™ã€‚ æœ¬è¨˜äº‹ã§ã¯Mongoid 4.0.0ã€Rails 4.1.8ã‚’ãƒ™ãƒ¼ã‚¹ã«ã€Railsã§Mongoidã‚’ä½¿ã†åˆ©ç‚¹ã‚’è¿°ã¹ã€å®Ÿéš›ã«ã‚µãƒ³ãƒ—ãƒ«ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã‚’å‹•ã‹ã—ã¦ç´¹ä»‹ã—ãŸã„ã¨æ€ã„ã¾ã™ã€‚ Mongoidã‚’ä½¿ã†åˆ©ç‚¹ ã“ã‚Œã¾ã§ã®ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã§ã¯Active Recordã‚’ä»‹ã—ã¦ä¸»ã«MySQLã‚’ä½¿ç”¨ã—ã¦ã„ã¾ã—ãŸãŒã€Mongoidã‚’ä½¿ç”¨ã™ã‚‹ã‚ˆã†ã«ãªã£ã¦ã€ä»¥ä¸‹ã®åˆ©ç‚¹ã‚’å®Ÿæ„Ÿã—ã¦ã„ã¾ã™ã€‚ Active Recordã¨å…±é€šã‚‚ã—ãã¯æ‹¡å¼µã—ãŸã‚¯ã‚¨ãƒªã¨æ°¸ç¶šåŒ–
supermomonga 2014/12/16
activerecord

MongoDB

Rails
ãƒªãƒ³ã‚¯
Railsã‚¢ãƒ—ãƒªã®ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ã‚’ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ãƒªãƒ•ã‚¡ã‚¯ã‚¿ãƒªãƒ³ã‚°ã¨ã‚ãƒ£ãƒƒã‚·ãƒ³ã‚°ã§å‘ä¸Šã™ã‚‹ [å’Œè¨³] - Engine Yard Blog
æœ¬è¨˜äº‹ã¯è‹±èªžç‰ˆãƒ–ãƒã‚°ã§å…¬é–‹ã•ã‚ŒãŸè¨˜äº‹ã®ç¿»è¨³ç‰ˆã§ã™ã€‚ ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ã¯ã©ã‚“ãªã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³é–‹ç™ºè€…ã«ã¨ã£ã¦ã‚‚å¤§ããªæ‡¸å¿µã§ã™ã€‚å•é¡Œãªã®ã¯ã€äººã¯å¾€ã€…ã«ã—ã¦ã€å®Ÿéš›ã«ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ãŒä¸‹ãŒã‚Šã¯ã˜ã‚æ‡¸å¿µã™ã¹ãäº‹æ…‹ã«ãªã‚‹ã¾ã§å•é¡Œã‚’æ”¾ç½®ã—ãŒã¡ã ã¨ã„ã†ç‚¹ã§ã™ã€‚ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹å¯¾ç–ã¯å‰ã‚‚ã£ã¦è¬›ã˜ã¦ãŠãã¹ãã‚‚ã®ã§ã€ã»ã“ã‚ã³ãŒå‡ºã¯ã˜ã‚ã¦ã‹ã‚‰å–ã‚Šã‹ã‹ã‚‹ã®ã§ã¯é…ã™ãŽã¾ã™ã€‚ãŸã¾ã®ãƒ¬ãƒ“ãƒ¥ãƒ¼ã§æ¸ˆã¾ã›ã‚‹ã®ã§ã¯ãªãã€ãƒ—ãƒã‚»ã‚¹ã®ä¸€ç’°ã«çµ„ã¿è¾¼ã‚€ã“ã¨ãŒå¿…è¦ã§ã™ã€‚ã“ã®è¨˜äº‹ã§ã¯ã€ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹å‘ä¸Šã®ãŸã‚ã«é–‹ç™ºè€…ãŒè‡ªåˆ†ã§ã§ãã‚‹ã„ãã¤ã‹ã®å¯¾ç–ã«ã¤ã„ã¦è¦‹ã¦ã„ãã¾ã™ã€‚ã¾ãšã¯ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã§ã™ã€‚ ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã®ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ Railsã‚’ä½¿ã†å ´åˆã€ActiveRecordã‚„DataMapperã¨ã„ã£ãŸORMã‚’ä½¿ãˆã°ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã‹ã‚‰ã®ãƒ‡ãƒ¼ã‚¿å–å¾—ã‚’æ¥½ã«ã§ãã¾ã™ãŒã€ãã‚Œã ã‘ã«ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã¨ã®ã‚„ã‚Šã¨ã‚Šã‚’æ”¹å–„ã™ã‚‹æœ€é©åŒ–ã‚„ãƒªãƒ•ã‚¡ã‚¯ã‚¿ãƒªãƒ³ã‚°ã®é‡è¦æ€§ã‚’ãŠã‚ãã‹ã«ã—
supermomonga 2014/11/25
ActiveRecord

rails

performance
ãƒªãƒ³ã‚¯
MySQLã¨ActiveRecord
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supermomonga 2014/11/16
Rails

activerecord

mysql
ãƒªãƒ³ã‚¯
Railsãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã®åˆæœŸé–‹ç™ºãƒ•ã‚§ãƒ¼ã‚ºã§ã®DBã‚¹ã‚ãƒ¼ãƒžç®¡ç†ã‚’è¦‹ç›´ã™ | Webã‚·ã‚¹ãƒ†ãƒ é–‹ç™ºï¼æ•™è‚²ã‚½ãƒªãƒ¥ãƒ¼ã‚·ãƒ§ãƒ³ã®ã‚¿ã‚¤ãƒ ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ¡ãƒ‡ã‚£ã‚¢
DBã®ã‚¹ã‚ãƒ¼ãƒžã€çš†æ§˜ã©ã®ã‚ˆã†ã«ç®¡ç†ã•ã‚Œã¦ã„ã‚‹ã§ã—ã‚‡ã†ã‹ã€‚ Railsã‚’åˆ©ç”¨ã•ã‚Œã¦ã„ã‚‹æ–¹ã®å¤šãã¯ã€ActiveRecordã®ãƒžã‚¤ã‚°ãƒ¬ãƒ¼ã‚·ãƒ§ãƒ³ã‚’åˆ©ç”¨ã—ã¦ç®¡ç†ã‚’ã•ã‚Œã¦ã„ã‚‹ã‹ã¨æ€ã„ã¾ã™ã€‚ ç§ã‚‚ã„ã¾ã¾ã§ã„ãã¤ã‹ã®Rails ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã«é–¢ã‚ã£ã¦ãã¾ã—ãŸãŒã€ ã»ã¼å…¨ã¦ã®ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã§ActiveRecordã®DBãƒžã‚¤ã‚°ãƒ¬ãƒ¼ã‚·ãƒ§ãƒ³ã‚’åˆ©ç”¨ã—ã¦ãã¾ã—ãŸã€‚ (ä¸€éƒ¨ã®ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã¯ActiveRecordã‚’ä½¿ã£ã¦ã„ãªã„ãŸã‚ã€ãƒžã‚¤ã‚°ãƒ¬ãƒ¼ã‚·ãƒ§ãƒ³ã‚‚ç‹¬è‡ªã®ã‚‚ã®ã‚’åˆ©ç”¨ã—ã¦ã„ã¾ã™) ActiveRecordã®ãƒžã‚¤ã‚°ãƒ¬ãƒ¼ã‚·ãƒ§ãƒ³ã§ã¯ã€DBã‚¹ã‚ãƒ¼ãƒžå¤‰æ›´ã®å·®åˆ†æƒ…å ±ã‚’ãƒžã‚¤ã‚°ãƒ¬ãƒ¼ã‚·ãƒ§ãƒ³ã‚¹ã‚¯ãƒªãƒ—ãƒˆã¨ã—ã¦ä¿å˜ã—ã¦ãŠãã¾ã™ã€‚ä¾‹ãˆã°ã€æ–°ã—ã„ãƒ†ãƒ¼ãƒ–ãƒ«ã€Œusersã€ã‚’ä½œæˆã™ã‚‹å ´åˆã¯ã€ä¸‹è¨˜ã®ã‚ˆã†ãªãƒžã‚¤ã‚°ãƒ¬ãƒ¼ã‚·ãƒ§ãƒ³ã‚¹ã‚¯ãƒªãƒ—ãƒˆã‚’ä½œæˆã—ã¾ã™ã€‚ class AddUsers < ActiveRecord::Migration def up # ã“ã“ã«ãƒžã‚¤ã‚°
supermomonga 2014/10/24
ActiveRecord

Rails

DB

migration
ãƒªãƒ³ã‚¯
3: Fluentd, Rails, ActiveRecord - Admins Bar
DeNA ã® @sonots ã•ã‚“ã¨ @ryopeko ã•ã‚“ã«ã€ Fluentd ã‚„ Rails ã€ç‰¹ã« ActiveRecord ã¾ã‚ã‚Šã®é‹ç”¨ãƒŽã‚¦ãƒã‚¦ã«ã¤ã„ã¦ãŠèžãã—ã¾ã—ãŸã€‚Perl ãƒ˜ãƒ“ãƒ¼ãƒ¦ãƒ¼ã‚¶ãƒ¼ã¨ã—ã¦æœ‰åãª DeNA ã•ã‚“ã§ã™ãŒã€ Perl ã‚¨ã‚³ã‚·ã‚¹ãƒ†ãƒ ã®çŸ¥è¦‹ãŒ Ruby ã§ã®ã‚µãƒ¼ãƒ“ã‚¹é–‹ç™ºãƒ»é‹ç”¨ã«ç”Ÿã‹ã•ã‚Œã¦ã„ã‚‹ãŠè©±ã¯ã¨ã¦ã‚‚èˆˆå‘³æ·±ã‹ã£ãŸã§ã™ã€‚ Show Notes â€œ2ä¸‡è¡Œã® confâ€ ã†ã¡ã® fluentd.conf ã¯ï¼’ä¸‡è¡Œã‚ã‚‹ãž â€” ãã®ã£ã¤ (SEO Naotoshi) (@sonots) September 27, 2013 Shadow Server on Fluentd at Fluentd Casual Talks #3 DeNA ã§ã® Fluentd ã®é‹ç”¨è¦æ¨¡ã€ã‚¯ãƒ©ã‚¹ã‚¿æ§‹æˆã«ã¤ã„ã¦ã®è¨˜è¿°ãŒã‚ã‚‹ sonots/haikanko Haikankoã¨ã„ã†Fluentdã‚¯
supermomonga 2014/09/13
fluentd

Rails

ActiveRecord
ãƒªãƒ³ã‚¯
ActiveRecordã®joinsã¨preloadã¨includesã¨eager_loadã®é•ã„ - Qiita
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supermomonga 2014/09/05
ActiveRecord

rails
ãƒªãƒ³ã‚¯
ã‚¯ãƒƒã‚¯ãƒ‘ãƒƒãƒ‰ã«ãŠã‘ã‚‹æœ€è¿‘ã®ActiveRecordé‹ç”¨äº‹æƒ… - ã‚¯ãƒƒã‚¯ãƒ‘ãƒƒãƒ‰é–‹ç™ºè€…ãƒ–ãƒã‚°
ã‚¤ãƒ³ãƒ•ãƒ©ã‚¹ãƒˆãƒ©ã‚¯ãƒãƒ£ãƒ¼éƒ¨ã®æˆç”°ï¼ˆ@mirakuiï¼‰ã§ã™ã€‚ Rails ã® OR ãƒžãƒƒãƒ‘ãƒ¼ã§ã‚ã‚‹ ActiveRecord ã§ã™ãŒã€ã¿ãªã•ã‚“ã©ã®ã‚ˆã†ã«é‹ç”¨ã—ã¦ã„ã¾ã™ã‹ï¼Ÿ ActiveRecord ã‚’ä½¿ã†ã¨ã€ SQL ã‚’ç›´æŽ¥æ‰±ã†ã“ã¨ãªãã€æŠ½è±¡åŒ–ã•ã‚ŒãŸè¡¨ç¾ã§ RDB ã«ã‚¢ã‚¯ã‚»ã‚¹ã§ãã‚‹ã®ã§ã€ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã®é–‹ç™ºåŠ¹çŽ‡ã¨ã„ã†è¦³ç‚¹ã§ã¯ãƒ¡ãƒªãƒƒãƒˆãŒå¤§ãã„ã§ã™ã€‚ ä¸€æ–¹ã§ã€ ActiveRecord ãŒé§†ä½¿ã•ã‚Œã¦ã„ã‚‹ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã‚’ã‚µãƒ¼ãƒã«é…ç½®ã—ã¦ãƒ—ãƒãƒ€ã‚¯ã‚·ãƒ§ãƒ³ã¨ã—ã¦é‹ç”¨ã™ã‚‹ç«‹å ´ã‹ã‚‰ã™ã‚‹ã¨ã€ã„ãã¤ã‹ã®å•é¡Œã«çªãå½“ãŸã‚Šã¾ã™ã€‚ ã¾ãšã¯ã‚¯ãƒƒã‚¯ãƒ‘ãƒƒãƒ‰æœ¬ä½“ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã«ãŠã‘ã‚‹ã€æœ€æ–°ã® rake stats ã‚’ã”è¦§ãã ã•ã„ã€‚ +----------------------+-------+-------+---------+---------+-----+-------+ | Name | Lines | LOC
supermomonga 2014/08/28
ActiveRecord

rails

Ruby
ãƒªãƒ³ã‚¯
ActiveRecordã§é›†è¨ˆé–¢æ•°ã®çµæžœã‚’è¤‡æ•°selectã—ãŸã„ã‚“ã§ã™ - ãªã‚“ã§ã‚„ã€‚ã€‚
select sum(min_salary), sum(max_salary) from jobs; ã“ã‚Œã‚’ActiveRecordã§æ›¸ããŸã„ã€‚ ãƒ™ã‚¿ã«æ›¸ãã¨ rec = Job.select(<<-SELECT).all[0] SUM(MIN_SALARY) AS MIN_SALARY ,SUM(MAX_SALARY) AS MAX_SALARY SELECT # => SELECT SUM(MIN_SALARY) AS MIN_SALARY # ,SUM(MAX_SALARY) AS MAX_SALARY # FROM "JOBS" p rec.min_salary # => 124888 p rec.max_salary # => 251088 ã“ã†ãªã‚‹ã€‚ é–¢ä¿‚ãªã„ã‘ã©ã€ä»•äº‹ä¸ã«ActiveRecordã®æ›¸ãæ–¹ã§è©°ã¾ã£ãŸã‚‰ã€è«¦ã‚ã¦ç›´æŽ¥SQLæ›¸ã„ãŸæ–¹ãŒæ—©ã„ã‚ˆãã€‚é–‘è©±ä¼‘é¡Œã€‚ ã“ã†æ›¸ã‘ãã†
supermomonga 2014/08/07
ruby

rails

ActiveRecord
ãƒªãƒ³ã‚¯
éžRails Appã§ActiveRecord::Migrationã‚’ä½¿ã† + Rakeã§ãƒãƒ¼ã‚¸ãƒ§ãƒ³ç®¡ç†ã™ã‚‹ - Qiita
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supermomonga 2014/07/12
ActiveRecord

Migration

ruby
ãƒªãƒ³ã‚¯
ä¸è¦æ¨¡Webé–‹ç™ºã®ãŸã‚ã®MVCåˆ†å‰²ã¨ãƒ¬ã‚¤ãƒ¤ã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒãƒ£ - Qiita
TL;DR MVCã‚‚ãƒ¬ã‚¤ãƒ¤ã§æ‰ãˆã¦é–¢ä¿‚æ€§ã®è¨è¨ˆã‚’ã™ã‚‹ã¨ã„ã„ã®ã§ã¯ æ™®é€šã®Rubyã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã‚’ç©æ¥µçš„ã«ä½¿ã„ãŸã„ã§ã™ã ã€Œãƒ‘ãƒ¼ãƒ•ã‚§ã‚¯ãƒˆ Railsã€ã«æœŸå¾…ã—ã¾ã—ã‚‡ã† é•·ããªã£ã¦é¢å€’ãã•ããªã‚Šã€é€”ä¸ã‹ã‚‰æ‰‹æŠœãæ„ŸãŒåŠç«¯ãªã„ã§ã™ãŒè¨±ã—ã¦ãã ã•ã„ ã“ã®è¨˜äº‹ã®ä½ç½®ä»˜ã‘ãªã© 7 Patterns to Refactor Fat ActiveRecord Models - Code Climate Blog [ç¿»è¨³] ã‚¨ãƒªãƒƒã‚¯ãƒ»ã‚¨ãƒ´ã‚¡ãƒ³ã‚¹ã®ãƒ‰ãƒ¡ã‚¤ãƒ³é§†å‹•è¨è¨ˆ ã‚¨ãƒ³ã‚¿ãƒ¼ãƒ—ãƒ©ã‚¤ã‚º ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒãƒ£ãƒ‘ã‚¿ãƒ¼ãƒ³ ã“ã‚Œã‚‰ã®å‚è€ƒæ–‡çŒ®ã‚’è¸ã¾ãˆã¦Railsã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã®ãƒªãƒ•ã‚¡ã‚¯ã‚¿ãƒªãƒ³ã‚°ã‚’ã—ã¦ã„ã¦ã€ã ã„ã¶æ–¹å‘æ€§ã‚„è€ƒãˆæ–¹ãŒã¾ã¨ã¾ã£ã¦ããŸã®ã§ã€ã“ã‚Œã‹ã‚‰ãƒãƒ¼ãƒ ã«åˆæµã™ã‚‹äººã‚’æƒ³å®šèªè€…ã«ã€QiitaãŒã©ã‚“ãªæ„Ÿã˜ã§ä½œã‚‰ã‚Œã¦ã„ã‚‹ã®ã‹ã‚’æ–‡æ›¸åŒ–ã—ãŸã‚‚ã®ã§ã™ã€‚ï¼ˆå‚è€ƒæ–‡çŒ®ã®ä¸€è¦§ã¯è¨˜äº‹ã®æœ€å¾Œã«ã‚ã‚Šã¾ã™ï¼‰ å†…å®¹çš„ã«ã¯æ–‡çŒ®[2,3]ã‚’è¸
supermomonga 2014/05/21
MVC

activerecord

rails
ãƒªãƒ³ã‚¯
Railsã‚¢ãƒ—ãƒªã¤ãã£ãŸ - âœ˜â•¹â—¡â•¹âœ˜
æœ€è¿‘APIã‚µãƒ¼ãƒç”¨é€”ã§Railsã‚¢ãƒ—ãƒªã‚’1å€‹ã¤ãã£ãŸã®ã§æŒ¯ã‚Šè¿”ã‚‹ã€‚ æ¦‚è¦ æŽ¥ç¶šå…ƒã¯iOSã‚„Androidã‚¢ãƒ—ãƒªã¨ã‹ã€Webãƒ–ãƒ©ã‚¦ã‚¶ã¨ã‹ã€åˆ¥ã®Webã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã¨ã‹ã€‚1ãƒ›ã‚¹ãƒˆã‚ãŸã‚Šç§’é–“æ•°ç™¾ãƒªã‚¯ã‚¨ã‚¹ãƒˆã€å¹³å‡å¿œç”æ™‚é–“10msãã‚‰ã„ã€‚Rails 4.1.0.rc2ã€Unicornã€Nginxã‚’ä½¿ã£ã¦ã‚‹ã€‚æ£ç›´Railsã¯å…¨éƒ¨å…¥ã‚Šã§é‡ã„ã‚¤ãƒ¡ãƒ¼ã‚¸ãŒã‚ã£ãŸã®ã§ä½•ã¨ãªãå¹³å‡50msä»¥å†…ç¨‹åº¦ã§ã‚ã‚Œã°è‰¯ã„ã¨ã“ã‚ã ã‚ã†ã¨æ€ã£ã¦ãŸã‘ã©ã€æ„å¤–ã¨é€Ÿã„ã€‚å¤šåˆ†ãã‚‚ãã‚‚ã‚µãƒ¼ãƒã®æ€§èƒ½ãŒè‰¯ã„ã‚“ã ã¨æ€ã†ã€‚å®Ÿè£…æ™‚ã«æ°—ã‚’ä»˜ã‘ãŸã“ã¨ã¯æ™®æ®µã®é–‹ç™ºã¨ç‰¹ã«å¤‰ã‚ã‚Šãªã„ã€‚ã„ã¤ã‚‚ã¯å¤§å‹¢ã§ãƒ¯ã‚¤ãƒ¯ã‚¤é–‹ç™ºã™ã‚‹ã‚‚ã®ã«å°‘ã—æ‰‹ã‚’åŠ ãˆã‚‹ã¨ã„ã†ã“ã¨ãŒå¤šã„ã‚“ã ã‘ã©ã€ä»Šå›žã¯çã—ãè‡ªåˆ†ä¸€äººã§ã¤ãã£ãŸã‹ã‚‰ç›®ãŒè¡Œãå±Šã„ã¦ãŸã®ã‹ã‚‚ã—ã‚Œãªã„ã€‚DBã¸ã®å•åˆã›ã®åŠ¹çŽ‡ã«æ°—ã‚’é…ã‚‹ã¨ã‹ã€Rubyã§ã®å‡¦ç†ã®ç„¡é§„ã‚’çœãã¨ã‹ã€ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã®ãƒ—ãƒã‚»ã‚¹ã«ç„¡é§„ãªã‚³ãƒ¼ãƒ‰ã‚’èªã¿è¾¼ã¾ã›ãªã„ã¨ã‹ã€è¨ˆ
supermomonga 2014/04/06
ActiveRecord

Rails

mysql
ãƒªãƒ³ã‚¯
ãƒ—ãƒ©ã‚¤ãƒžãƒªã‚ãƒ¼ã‚’ä½¿ã£ãŸ1:1é–¢é€£ã§ã‚«ãƒ©ãƒ æ•°ã®å¤šã„ãƒ†ãƒ¼ãƒ–ãƒ«ã‚’åˆ†å‰²ã™ã‚‹ - Hidden in Plain Sight
ãŠãã‚‰ãå¤šãã®ã‚½ãƒ¼ã‚·ãƒ£ãƒ«ç³»ã‚¢ãƒ—ãƒªã«ã‚ã¦ã¯ã¾ã‚‹Railsã®ãƒ—ãƒãƒ»ãƒ‡ã‚¶ã‚¤ãƒ³ãƒ‘ã‚¿ãƒ¼ãƒ³çš„ãªè©±ã€‚ ã¼ããŒä»Šã‚„ã£ã¦ã„ã‚‹East Meet Eastã«ã¯ã€ãƒ¦ãƒ¼ã‚¶ã”ã¨ã«æ•°å¤šãã®ãƒ—ãƒãƒ•ã‚£ãƒ¼ãƒ«å±žæ€§ãŒã‚ã‚Šã¾ã™ã€‚åå‰ã€æ€§åˆ¥ã€ç”Ÿå¹´æœˆæ—¥ã€éƒµä¾¿ç•ªå·ã€è·æ¥ãªã©ãªã©ã€ã‚«ãƒ©ãƒ æ•°ã«ã—ã¦ã–ã£ã¨25å€‹ã€‚ã“ã‚Œã‚’ã€å…¨éƒ¨ã²ã¨ã¤ã®usersãƒ†ãƒ¼ãƒ–ãƒ«ã«è©°ã‚è¾¼ã‚€ã®ã¯ã€ã‚³ãƒ¼ãƒ‰ã®è¦‹é€šã—ã¨ã„ã†è¦³ç‚¹ã‹ã‚‰ã‚‚æ€§èƒ½ã®è¦³ç‚¹ã‹ã‚‰ã‚‚ã€ã‚ã¾ã‚Šã‚ˆã‚ã—ãã‚ã‚Šã¾ã›ã‚“ã€‚ ãªãœãªã‚‰ã°ã€ãƒ¦ãƒ¼ã‚¶é–¢é€£ã®æƒ…å ±ã‚’æ‰±ã†å±€é¢ã¨ã—ã¦ã¯ä¸»ã« ãƒ¡ãƒ¼ãƒ«ã‚¢ãƒ‰ãƒ¬ã‚¹ã¨ãƒ‘ã‚¹ãƒ¯ãƒ¼ãƒ‰ãªã©ã‚’ä½¿ã£ã¦ãƒã‚°ã‚¤ãƒ³ã™ã‚‹ï¼ˆã‚¢ã‚«ã‚¦ãƒ³ãƒˆæƒ…å ±ï¼‰ ãƒ—ãƒãƒ•ã‚£ãƒ¼ãƒ«æƒ…å ±ã§æ¡ä»¶ã‚’æŒ‡å®šã—ã¦ãƒ¦ãƒ¼ã‚¶ã‚’æ¤œç´¢ãƒ»æŽ¨è–¦ã™ã‚‹ï¼ˆãƒ—ãƒãƒ•ã‚£ãƒ¼ãƒ«æƒ…å ±ï¼‰ ã¨ã„ã†ï¼’ã¤ã®ç‹¬ç«‹æ€§ã®é«˜ã„ãƒ¦ãƒ¼ã‚¹ã‚±ãƒ¼ã‚¹ã«ã‚ã‹ã‚Œã‚‹ãŸã‚ã€ãƒã‚°ã‚¤ãƒ³å‡¦ç†ã‚’ã‚„ã£ã¦ã‚‹ã¨ãã«ã¯ãƒ—ãƒãƒ•ã‚£ãƒ¼ãƒ«æƒ…å ±ã¯ã„ã‚‰ãªã„ã—ã€ãƒ—ãƒãƒ•ã‚£ãƒ¼ãƒ«ã‚’æ¤œç´¢ã—ã¦ã‚‹ã¨ãã«ã¯ãƒ¡ãƒ¼ãƒ«ã‚¢ãƒ‰ãƒ¬ã‚¹ã‚„ãƒ‘ã‚¹ãƒ¯ãƒ¼ãƒ‰ã‚’ãƒãƒ¼ãƒ‰ã™ã‚‹ã®ã¯ç„¡é§„ã§ã™ã€‚ã¾ãŸã€é–‹ç™ºã‚„ãƒ‡
supermomonga 2014/03/07
rails

ActiveRecord

db

database

Model
ãƒªãƒ³ã‚¯
Ruby on Rails on MySQL ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°å…¥é–€
Rails 3 ç³»+MySQL ã‚’åˆ©ç”¨ã—ã¦ã„ã‚‹ã‚µãƒ¼ãƒ“ã‚¹å‘ã‘ã« 1. ã©ã®ã‚ˆã†ã«ãƒœãƒˆãƒ«ãƒãƒƒã‚¯ã‚’æŽ¢ã™ã®ã‹ 2. ã©ã®ã‚ˆã†ãªè¨è¨ˆã‚’è¡Œãˆã°ã„ã„ã®ã‹ 3. Railsä¸Šã§ã©ã®ã‚ˆã†ãªã‚³ãƒ¼ãƒ‰ã‚’æ›¸ã‘ã°ã„ã„ã®ã‹ ã®3ç‚¹ã«çµžã£ã¦ã“ã®ãƒ—ãƒ¬ã‚¼ãƒ³ã‚’ã¿ã¦ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°ã‚’è¡Œãˆã‚‹ã‚ˆã†ã«è³‡æ–™ä½œæˆã‚’è¡Œã„ã¾ã—ãŸRead less
supermomonga 2014/02/27
rails

ruby

Ruby on Rails

ActiveRecord
ãƒªãƒ³ã‚¯
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