O/R Mapper ã«ãŠã‘るページャーã®å®Ÿè£…ã«ã¤ã„㦠- tokuhirom's blogæ¬ ç‚¹$rs->pager(); ã®ã‚ˆã†ã«ã€ã‚¯ã‚¨ãƒªã‚’ã†ã£ã¦ã„ã‚‹ã£ã½ããªã„ã®ã«è£ã§ã†ã£ã¦ã‚‹ã®ã§ã€é‡ã„処ç†ãªã®ã«ãŠã‚‚ãã†ã«ã¿ãˆãªãã¦ã•ãŒã™ã®ãŒé¢å€’。ãŠæ°—軽ã«ã¤ã‹ãˆã™ãŽã¦å±é™ºã€‚ HAVING ãªã©ã‚’ã¤ã‹ã†ã‚¯ã‚¨ãƒªã®å ´åˆã€ãã‚‚ãã‚‚ãŸã ã—ã„値ãŒã¨ã‚Œã¦ãªã„ã®ã«ã€ãªã‚“ã¨ãªãã†ã”ã„ã¦ã—ã¾ã†ã€‚ã¾ã¡ãŒã£ãŸå€¤ã‚’ã‹ãˆã™ API を標準ã§ã¤ã‘ã‚‹ã®ã¯ã„ã‹ãŒãªã‚‚ã®ã‹ã€‚ å¾—ã« HAVING ãªã©ã®å‡¦ç†ãŒã†ã¾ãã§ããªã„ã®ã¯è‡ªæ˜Žãªã®ã§ã€ã“ã†ã„ã†å®Ÿè£…ã¯åƒ•ã¯å¥½ãã§ã¯ãªã„ã§ã™ã€‚ → Teng ã«ã¯ã¤ã„ã¦ãªã„。
Active Record Query Interface 3.0 - (m.onkey.org)
https://asciicasts.com/episodes/202-active-record-queries-in-rails-3
ヽ( ・∀・)ノãã¾ãã¾ãƒ¼(2006-01-05)
ã¯ã¦ãªãƒ–ãƒã‚° | 無料ブãƒã‚°ã‚’作æˆã—よã†
has_many :through - Self-referential has_many :through associations
ActiveRecordã‚’ã•ã‚‰ã«ä¾¿åˆ©ã«ã™ã‚‹æ–¹æ³•ã®ç´¹ä»‹ - Hello, world! - s21g
データベースã«ãƒ†ãƒ¼ãƒ–ルを作らãšã« ActiveRecord を利用ã™ã‚‹ - elm200 ã®æ—¥è¨˜(æ—§ã¯ã¦ãªãƒ€ã‚¤ã‚¢ãƒªãƒ¼)
Migration ã®æ©ãæ–¹ - elm200 ã®æ—¥è¨˜(æ—§ã¯ã¦ãªãƒ€ã‚¤ã‚¢ãƒªãƒ¼)
ApplicationModel クラスã®ã‚¹ã‚¹ãƒ¡ (STI ã¨ã®å…±å˜) - ヽ( ・∀・)ノãã¾ãã¾ãƒ¼(2007-09-02)
ActiveRecordã®å†…部実装を垣間見る ãã®1 - Lazy Technology
AR#== - Lazy Technology
Amazon.co.jp: Pro Active Record: Databases with Ruby and Rails: Marshall, Kevin (著), Pytel, Chad (メインアーティスト), Yurek, Jon (メインアーティスト): 本
http://rails.office.drecom.jp/takiuchi/archive/206
ActiveRecord ã®æ©ãæ–¹ - Association ç·¨(3) - elm200 ã®æ—¥è¨˜(æ—§ã¯ã¦ãªãƒ€ã‚¤ã‚¢ãƒªãƒ¼)
ActiveRecord ã§ãƒ¢ãƒ‡ãƒ«ã”ã¨ã«åˆ¥ã®ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã‚’使ã†æ–¹æ³• < 43hr.org
#3878 ([PATCH] find_or_new) - Rails Trac - Trac
ã¯ã¦ãªã‚°ãƒ«ãƒ¼ãƒ—ã®çµ‚了日を2020å¹´1月31æ—¥(金)ã«æ±ºå®šã—ã¾ã—㟠- ã¯ã¦ãªã®å‘ŠçŸ¥
Act as Taggable
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