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activerecordã«é–¢ã™ã‚‹yuanyingã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (11)

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Rails: JOINã™ã¹ãã‹ã©ã†ã‹ã€ãã‚ŒãŒå•é¡Œã â€” #includesã®æŒ¯èˆžã„ã‚’ç†è§£ã™ã‚‹ï¼ˆç¿»è¨³ï¼‰
æ¦‚è¦ åŽŸè‘—è€…ã®è¨±è«¾ã‚’å¾—ã¦ç¿»è¨³ãƒ»å…¬é–‹ã„ãŸã—ã¾ã™ã€‚ è‹±èªžè¨˜äº‹: To join or not to join? An act of #includes åŽŸæ–‡ å…¬é–‹æ—¥: 2017/08/07 è‘—è€…: Tiago Farias åŽŸæ–‡ã§ã¯ã‚·ã‚§ãƒ¼ã‚¯ã‚¹ãƒ”ã‚¢ã®å¤å…¸åŠ‡ã€Žãƒãƒ ãƒ¬ãƒƒãƒˆã€ã®ã‚»ãƒªãƒ•ãŒå¤šæ•°å¼•ç”¨ã•ã‚Œã¦ã„ã¾ã™ã€‚å¼•ç”¨ã•ã‚ŒãŸã‚»ãƒªãƒ•ã®ãƒªãƒ³ã‚¯ã‚’ãƒžã‚¦ã‚¹ã‚ªãƒ¼ãƒãƒ¼ã™ã‚‹ã¨ã‚·ã‚§ãƒ¼ã‚¯ã‚¹ãƒ”ã‚¢ã®åŽŸæ–‡ãŒãƒãƒƒãƒ—ã‚¢ãƒƒãƒ—ã—ã¾ã™ã€‚ actã®åŸºæœ¬çš„ãªæ„å‘³ã¯ã€Œæ¼”æŠ€ï¼ˆã™ã‚‹ï¼‰ã€ã€Œï¼ˆèˆžå°ã®ï¼‰å ´é¢ã€ã§ã‚ã‚Šã€ã‚¿ã‚¤ãƒˆãƒ«ã¯ã“ã‚Œã«ã‹ã‹ã£ã¦ã„ã¾ã™ã€‚ 2017/09/25: åˆç‰ˆå…¬é–‹ 2021/09/22: æ›´æ–° è¨³æ³¨ k0kubunã•ã‚“ã®ä»¥ä¸‹ã®è¨˜äº‹ã‚‚åˆã‚ã›ã¦èªã‚€ã“ã¨ã‚’ãŠã™ã™ã‚ã—ã¾ã™ã€‚Rails 5ä»¥é™ã¯#left_outer_joinsï¼ˆã¾ãŸã¯ã‚¨ã‚¤ãƒªã‚¢ã‚¹ã®#left_joins)ãŒä½¿ãˆã¾ã™ã€‚ã¾ãŸã€#includesãŒActiveRecord::Baseã‚’ç”Ÿæˆã™
yuanying 2017/09/25
ruby

rails

activerecord

sql
ãƒªãƒ³ã‚¯
GitHub - basecamp/marginalia: Attach comments to ActiveRecord's SQL queries
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yuanying 2012/04/26
rails

activerecord
ãƒªãƒ³ã‚¯
ActiveRecordã®ã‚³ãƒã‚¯ã‚·ãƒ§ãƒ³ãƒ—ãƒ¼ãƒªãƒ³ã‚°ã‚’ã‚„ã‚ã¦ã¿ã‚‹ - kaeruspoon
ãŠãŠã„ã—ã¤ã‹ã• æ—…è¡Œã¨ãƒã‚¤ã‚¯ã¨ãƒ‰ãƒ©ã‚¤ãƒ–ã¨æ–™ç†ã¨å®‡å®™ãŒå¥½ãã€‚ Ubie Discoveryã®ãƒ—ãƒã‚°ãƒ©ãƒžã€‚ é–¢é€£ : Railsã§Mysqlã‚¹ãƒ¬ãƒ¼ãƒ–ç¾¤ã‚’ãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚µçµŒç”±ã§ä½¿ç”¨ã§ãã‚‹ã€FreshConnectionã‚’ä½œã‚Šå§‹ã‚ã¾ã—ãŸ Railsã®ActiveRecordã¯ã€DBã¨ã®ã‚³ãƒã‚¯ã‚·ãƒ§ãƒ³ãŒãƒ—ãƒ¼ãƒ«ã•ã‚Œã¾ã™ã€‚ ã‚¢ã‚¯ã‚»ã‚¹ã”ã¨ã«ã‚³ãƒã‚¯ã‚·ãƒ§ãƒ³ã‚’ã¯ã‚ŠãªãŠã™ã‚ˆã‚Šã¯ã€ã‚ªãƒ¼ãƒãƒ¼ãƒ˜ãƒƒãƒ‰ãŒãªã„åˆ†ã€ç†ã«ã‹ãªã£ã¦ã„ã‚‹ã‚ˆã†ã«ã‚‚æ€ãˆã¾ã™ã€‚ ãŸã ã€æ¯”è¼ƒçš„å¤§ãã‚ãªã‚µã‚¤ãƒˆã«ãªã£ã¦ãã‚‹ã¨ã€ã¯ã‚Šã£ã±ãªã—ã®ã‚³ãƒã‚¯ã‚·ãƒ§ãƒ³ãŒå¤šããªã‚Šã™ãŽã¡ã‚ƒã£ã¦å¤§å¤‰ãªã“ã¨ã«ãªã£ã¦ãã¾ã™(1ã‚µãƒ¼ãƒ1ä¸‡ã‚³ãƒã‚¯ã‚·ãƒ§ãƒ³ã¨ã‹ãªã‚Šã‹ããªã„)ã€‚ãƒªã‚½ãƒ¼ã‚¹ã¯é£Ÿã†ã—ã€ãŸãã•ã‚“ã®ã‚¹ãƒ¬ãƒ¼ãƒ–ã‚’æŠ±ãˆã¦ã„ã‚‹ã¨ãã«ActsAsReadonlyableãªã©ã§ã¡ã¾ã¡ã¾ã‚„ã£ã¦ã„ãŸã‚‰ã¨ã¦ã‚‚é‹ç”¨ã§ãã¾ã›ã‚“ã€‚ã‚¹ãƒ¬ãƒ¼ãƒ–ãªã‚“ã¦LVS+keepalivedã§ãƒãƒ©ãƒ³ã‚·ãƒ³ã‚°ã—ã¡ã‚ƒã„ãŸã„ã¨ã“ã‚ã€‚ã§ã‚‚ã‚³ãƒã‚¯ã‚·
yuanying 2011/07/30
rails

activerecord
ãƒªãƒ³ã‚¯
Active Record Query Interface 3.0 - (m.onkey.org)
Iâ€™ve been working on revamping the Active Record query interface for the last few weeks ( while taking some time off in India from consulting work, before joining 37signals ), building on top of Emilioâ€™s GSOC project of integrating ARel and ActiveRecord. So hereâ€™s an overview of how things are going to work in Rails 3. Whatâ€™s going to be deprecated in Rails 3.1 ? These deprecations will be effecti
yuanying 2011/07/28
rails

arel

rails3

activerecord
ãƒªãƒ³ã‚¯
ä»Šã•ã‚‰Rails3ãƒ¡ãƒ¢ - ãã®4: Modelã®ã¡ã‚‡ã£ã¨å¤‰ã‚ã£ãŸåŸºç¤Ž -
Model ã¯å¥¥ãŒæ·±ãã€ã¾ãŸ Rails ã¯ Fat Model ã«ã—ã‚ã€ã®å“²å¦ãªã®ã§é•·ããªã‚Šãã†ã¨ã„ã†ã“ã¨ã§å°å‡ºã—ã«ã™ã‚‹ã€‚ ActiveModelã‚’includeã™ã‚Œã°ãªã‚“ã§ã‚‚Modelã«Rails 2 ä»¥å‰ã¯ ActiveRecord ã¨å¯†çµåˆã—ã¦ã„ãŸã‘ã‚Œã©ã€Rails 3 ä»¥é™ã§å¤šãã®æ©Ÿèƒ½ãŒ ActiveModel ã«åˆ‡ã‚Šé›¢ã•ã‚ŒãŸã€‚ActiveRecord ã‚’ä½¿ã†ã‚¢ãƒ—ãƒªã®å ´åˆã¯ã‚ã¾ã‚Šé–¢ä¿‚ãªã„ã‘ã©ã€ActiveRecord ã‹ã‚‰åˆ‡ã‚Šé›¢ã•ã‚ŒãŸã¨ã„ã†ã“ã¨ã¯ DBMS é–¢ä¿‚ãªã Model ã®æ©Ÿèƒ½ã‚’åˆ©ç”¨ã§ãã‚‹ ã“ã¨ã‚’æ„å‘³ã™ã‚‹ã€‚ Model ã®ã‚¯ãƒ©ã‚¹ãƒ¡ã‚½ãƒƒãƒ‰ã¨ã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹Model ã®ã‚¯ãƒ©ã‚¹ãƒ¡ã‚½ãƒƒãƒ‰ã«ã¯ table_name, human_name ãªã©ãŒã‚ã‚‹ãŒã€Model.new ã—ãŸã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã«ã¯å˜åœ¨ã—ãªã„ã€‚ ã¾ã—ã¦ã‚„ Model.all, Model.find ã®æ¤œç´¢çµæžœã«è‡³ã£ã¦ã¯ A
yuanying 2011/02/23
rails3

activerecord

rails

development
ãƒªãƒ³ã‚¯
ç¬¬43å›žã€€Rails 3ã‚’æ”¯ãˆã‚‹åè„‡å½¹ãŸã¡ ãã®1 - Arel - | gihyo.jp
ã¯ã˜ã‚ã« Ruby on Railsã®2å¹´åŠã¶ã‚Šã®ãƒ¡ã‚¸ãƒ£ãƒ¼ãƒãƒ¼ã‚¸ãƒ§ãƒ³ã‚¢ãƒƒãƒ—ã§ã‚ã‚‹3.0ã®æ£å¼ãƒªãƒªãƒ¼ã‚¹ãŒã„ã‚ˆã„ã‚ˆé–“è¿‘ã«è¿«ã£ã¦ãã¾ã—ãŸã€‚ Rails 3ã¯ã€ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ãƒ»ãƒ¬ãƒ™ãƒ«ã§ã¯Rails 2.3ã¨ã®äº’æ›æ€§ã‚’ãªã‚‹ã¹ãä¿ã¡ãªãŒã‚‰ã‚‚ã€ãƒ¡ã‚¸ãƒ£ãƒ¼ãƒãƒ¼ã‚¸ãƒ§ãƒ³ã‚¢ãƒƒãƒ—ã ã‘ã‚ã£ã¦ãƒ•ãƒ¬ãƒ¼ãƒ ãƒ¯ãƒ¼ã‚¯è‡ªä½“ã¯éš…ã€…ã«ã¾ã§å¾¹åº•çš„ãªãƒªãƒ•ã‚¡ã‚¯ã‚¿ãƒªãƒ³ã‚°ãŒæ–½ã•ã‚Œã¦æ›´ãªã‚‹æ´—ç·´ã‚’é‚ã’ã¦ã„ã¾ã™ã€‚çµæžœã¨ã—ã¦ã€Rails 3ã§ã¯èžé€šã®åŠ¹ã‹ãªã„ãƒ•ãƒ«ã‚¹ã‚¿ãƒƒã‚¯æ§‹é€ ã‚’æ¨ã¦ã¦ã™ã£ãã‚Šã¨ã—ãŸãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«ç‹¬ç«‹æ€§ãŒå®Ÿç¾ã•ã‚Œã¦ã„ã‚‹ã®ã§ã™ãŒã€ã“ã®éš›ã«ã€Merbã¨ã®åˆä½µã®å½±éŸ¿ã‚‚ã‚ã£ã¦ã‹ã€ã„ãã¤ã‹ã®æ–°ãŸãªå¤–éƒ¨ãƒ©ã‚¤ãƒ–ãƒ©ãƒªã«ä¾å˜ã™ã‚‹å½¢ã«ãªã£ã¦ã„ã‚‹ã®ã‚‚èˆˆå‘³æ·±ã„ã¨ã“ã‚ã§ã™ã€‚ ãã“ã§æœ¬ç¨¿ã§ã¯ã€ã‚ãˆã¦Rails 3ãã®ã‚‚ã®ã§ã¯ãªãã€ã“ã®Rails 3ã®å¤§æ”¹é€ ã®èˆžå°è£ã‚’æ”¯ãˆã‚‹è£æ–¹ã•ã‚“ã«ã‚¹ãƒãƒƒãƒˆãƒ©ã‚¤ãƒˆã‚’å½“ã¦ã¦ã¿ãŸã„ã¨æ€ã„ã¾ã™ã€‚ Arelã«ã‚ˆã£ã¦ãƒ‘ãƒ©ãƒ€ã‚¤ãƒ ãŒå¤§ããå¤‰ã‚ã£ãŸAct
yuanying 2010/11/04
arel

rails

rails3

activerecord

ruby

development
ãƒªãƒ³ã‚¯
Rails ã«ãŠã‘ã‚‹ãƒ¬ãƒ¼ã‚¹ã‚³ãƒ³ãƒ‡ã‚£ã‚·ãƒ§ãƒ³ã®ä¾‹ã¨ãã®å›žé¿æ–¹æ³• - LukeSilviaâ€™s diary
æœ€è¿‘ç«‹ã¦ç¶šã‘ã«ãƒ¬ãƒ¼ã‚¹ã‚³ãƒ³ãƒ‡ã‚£ã‚·ãƒ§ãƒ³å•é¡Œã«éé‡ã—ãŸã®ã§ãƒ¡ãƒ¢ã€‚ ãƒ¬ãƒ¼ã‚¹ã‚³ãƒ³ãƒ‡ã‚£ã‚·ãƒ§ãƒ³(ç«¶åˆçŠ¶æ…‹)ã¨ã¯ã€è¤‡æ•°ã®ãƒ—ãƒã‚»ã‚¹ã‚„ã‚¹ãƒ¬ãƒƒãƒ‰ãŒå…±æœ‰ãƒªã‚½ãƒ¼ã‚¹ã«å¯¾ã—ã¦ä½•ã‚‰ã‹ã®æ“ä½œã‚’ã™ã‚‹éš›ã«ã€å‡¦ç†ã®ã‚¿ã‚¤ãƒŸãƒ³ã‚°ã«ã‚ˆã£ã¦çµæžœãŒç•°ãªã£ã¦ã—ã¾ã†çŠ¶æ…‹ã®ã“ã¨ã€‚ã‚ˆããƒˆãƒ©ãƒ³ã‚¶ã‚¯ã‚·ãƒ§ãƒ³ã®è§£èª¬ã®éš›ã«éŠ€è¡Œå£åº§ã®ä¾‹ã¨ã—ã¦ç´¹ä»‹ã•ã‚Œã‚‹ãŠãªã˜ã¿ã®ã‚„ã¤ã§ã™ã€‚ ä»Šå›žã¯ã€ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã®æ›¸ãæ–¹ã«ã‚ˆã£ã¦ç™ºç”Ÿã™ã‚‹ãƒ¬ãƒ¼ã‚¹ã‚³ãƒ³ãƒ‡ã‚£ã‚·ãƒ§ãƒ³ã¨ã€MySQL ã®ãƒ†ãƒ¼ãƒ–ãƒ«å®šç¾©æ™‚ã®åˆ¶ç´„ä¸è¶³ã§ç™ºç”Ÿã™ã‚‹ãƒ¬ãƒ¼ã‚¹ã‚³ãƒ³ãƒ‡ã‚£ã‚·ãƒ§ãƒ³ã«ã¤ã„ã¦ãã‚Œãžã‚Œç´¹ä»‹ã—ãŸã„ã¨æ€ã„ã¾ã™ã€‚ ã©ã¡ã‚‰ã®å ´åˆã‚‚å…±æœ‰ãƒªã‚½ãƒ¼ã‚¹ã¯DB ã§ã€æ¡ä»¶ã‚’æº€ãŸã™ã¨æ„å›³ã—ãªã„å½¢ã§ãƒ‡ãƒ¼ã‚¿ãŒä¿å˜ã•ã‚Œã¦ã—ã¾ã„ã¾ã™ã€‚ ã‚µãƒ³ãƒ—ãƒ«ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ ã‚µãƒ³ãƒ—ãƒ«ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã¨ã—ã¦ã€ç°¡å˜ãªã‚¢ã‚¯ã‚»ã‚¹è§£æžæ©Ÿèƒ½ä»˜ãã®çŸç¸®URL ãƒ„ãƒ¼ãƒ«ã‚’è€ƒãˆã¾ã™ã€‚ ã‚¢ã‚¯ã‚»ã‚¹è§£æžæ©Ÿèƒ½ã¨ã—ã¦ã€ä»¥ä¸‹ã®ã‚ˆã†ãªæ©Ÿèƒ½ã‚’æŒã¤ã¨ã—ã¾ã—ã‚‡ã†ã€‚ URLæ¯Ž ã«ã‚¯ãƒªãƒƒã‚¯æ•°ã‚’è¨ˆæ¸¬ã§ãã‚‹
yuanying 2010/02/03
rails

activerecord

development
ãƒªãƒ³ã‚¯
ActiveRecord.js : Cross Browser, Cross Platform, JavaScript ORM
ActiveRecord.js makes it easy to begin working with databases in JavaScript on the client or server, with Aptana Jaxer, Google Gears & Chrome, Adobe AIR or any platform supporting the W3C HTML5 SQL Specification (currently Webkit and iPhone). Project Features ActiveRecord.js is a single file, relies on no external JavaScript libraries, supports automatic table creation, data validation, data synch
yuanying 2009/01/19
javascript

activerecord

database

mashup

todo
ãƒªãƒ³ã‚¯
è¤‡æ•°ã® ActiveRecord ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã‚’ã¾ã¨ã‚ã¦æ‰±ã† - ursmã®æ—¥è¨˜
å°åŒ—å¸‚ç«‹å‹•ç‰©åœ’ã¨è¿ªåŒ–è¡—ã‚ãã‚Š åé€£ã‚Œå°æ¹¾#5 å¹´è¶Šã—å°æ¹¾ æ—…è¡Œ5æ—¥ç›®ã€ãƒ¬ã‚¸ãƒ£ãƒ¼ã‚„å‹äººã¨ã®é£Ÿäº‹ã‚’æ¥½ã—ã‚€æ—¥ã§ã™ã€‚å‰æ—¥ã®æ§˜åã¯ã“ã¡ã‚‰ www.oukakreuz.com å°åŒ—å¸‚ç«‹å‹•ç‰©åœ’ã¸ ãƒ‘ãƒ³ãƒ€é¤¨ ãƒ‘ãƒ³ãƒ€ãŒè¦‹ã‚‰ã‚Œã‚‹ãƒ¬ã‚¹ãƒˆãƒ©ãƒ³ è¿ªåŒ–è¡—ã¸ æž—èŒ‚æ£®èŒ¶è¡Œã§ãŠèŒ¶ã‚’è³¼å…¥ å°èŠ±åœ’ã§åˆºç¹ã‚°ãƒƒã‚ºã‚’è³¼å…¥ é»’æ¦å£«ç‰¹è‰²è€ç«é‹ã§å¤•é£Ÿ å°åŒ—å¸‚ç«‹å‹•ç‰©åœ’ã¸ æ¾â€¦
yuanying 2008/10/07
rails

activerecord
ãƒªãƒ³ã‚¯
Plugins - ActiveRecord ScrollableResultSet Plugin - Agile Web Development
yuanying 2007/08/23
rails

activerecord
ãƒªãƒ³ã‚¯
ãƒ½( ãƒ»âˆ€ãƒ»)ãƒŽãã¾ãã¾ãƒ¼(2006-01-05)
â— [Rails] with_scope (ActiveRecord) ActiveRecord::Base.with_scope(method_scoping = {}) {|| ...} with_scope ã¯ãƒ†ãƒ¼ãƒ–ãƒ«æ“ä½œã®ç¯„å›²ã‚’é™å®šã™ã‚‹ã‚¯ãƒ©ã‚¹ãƒ¡ã‚½ãƒƒãƒ‰ã§ã™ã€‚æŒ‡å®šã•ã‚ŒãŸãƒ–ãƒãƒƒã‚¯ã‚’å®Ÿè¡Œã™ã‚‹éš›ã€xxx_by_sql ä»¥å¤–ã®ãƒ†ãƒ¼ãƒ–ãƒ«æ“ä½œç”¨ã®ã‚¯ãƒ©ã‚¹ãƒ¡ã‚½ãƒƒãƒ‰å…¨ã¦ãŒå¼•æ•°ã§æŒ‡å®šã•ã‚ŒãŸåˆ¶é™(å½±éŸ¿)ã‚’å—ã‘ã¾ã™(â€»1)ã€‚ ä»¥ä¸‹ã®ã‚ˆã†ãªå ´é¢ã§åŠ¹æžœã‚’ç™ºæ®ã—ã¾ã™ã€‚ å…±é€šã®å€¤ã‚’æŒã¤è¤‡æ•°ã‚¢ã‚¤ãƒ†ãƒ ã‚’ç°¡å˜ã«åˆæœŸåŒ–ã—ãŸã„ã€‚ find(params[:id]) ã§å–å¾—ã—ãŸãƒ‡ãƒ¼ã‚¿ãŒä¸æ£ã‚¢ã‚¯ã‚»ã‚¹ã‹ã©ã†ã‹ã®æ¤œè¨¼ãŒé¢å€’ã ã€‚ ã‹ã¨è¨€ã£ã¦ã€find æ™‚ã« :conditions æŒ‡å®šã™ã‚‹ã®ã‚‚é¢å€’ã ã€‚ ã•ã‚‰ã«ã€ãã‚Œã‚’CRUDæ¯Žã«æŒ‡å®šã™ã‚‹ãªã‚“ã¦æ°—ãŒé ããªã‚‹ã€‚ â€»1ï¼šãƒ¬ã‚·ãƒ¼ãƒã¨åŒã˜ã‚¯ãƒ©ã‚¹ã®ã¿å½±éŸ¿ã‚’å—ã‘ã¾ã™ã€‚ â— ã‚¹ã‚³ãƒ¼ãƒ—æŒ‡å®š ã‚¹ã‚³ãƒ¼ãƒ—ã®ç¨®é¡ž
yuanying 2007/08/04
activerecord

rails
ãƒªãƒ³ã‚¯
1