ActiveRecordã«ã¯ãã‚Œã¾ã§ã®orderを無視ã—ã¦ä¸Šæ›¸ãã™ã‚‹reorderã¨ã„ã†ãƒ¡ã‚½ãƒƒãƒ‰ãŒã‚ã‚‹ - コード日進月æ©ä¸€ä½“ã©ã†ã„ã†æ„図ã§ã¤ãã£ãŸã®ã‹ã‚ã‹ã‚‰ãªã„ãŒè¦‹ã¤ã‘ãŸã®ã§ãƒ¡ãƒ¢ãŒã¦ã‚‰ã€‚打ã¡æ¶ˆã—ã®è¨˜è¿°ãªã‚“ã¦å±é™ºã—ã‹å•ã‚“ã§ãªã„ã‹ã‚‰ã€ãŠãらãコレã¯è¦‹ã‹ã‘ãŸã‚‰é§†é™¤ã—ãŸã»ã†ãŒã„ã„ç³»ã®ãƒ¡ã‚½ãƒƒãƒ‰ã ã¨ã¯æ€ã£ã¦ã„る。 環境 rails (5.2.0) 例 例ãˆã°æ™®é€šã«orderã™ã‚‹ã¨ä»¥ä¸‹ã®ã‚ˆã†ã«ã‚¯ã‚¨ãƒªãŒåã出ã•ã‚Œã‚‹ User.order(:id) # User Load (0.6ms) SELECT `users`.* FROM `users` ORDER BY `users`.`id` ASC 複数指定ã™ã‚‹ã¨ä»¥ä¸‹ã®ã‚ˆã†ã«é‡ãã¦ORDER BYã‚’ã‹ã‘ã‚‹ User.order(:id).order(:updated_at) # User Load (5.2ms) SELECT `users`.* FROM `users` ORDER BY `users`.`id` ASC, `users`.`updated_at` ASC
ActiveRecord ã® attribute 更新方法ã¾ã¨ã‚ - Qiita
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ActiveRecordを試ã™ã¨ãã«ä¾¿åˆ©ãªã‚„㤠- r7kamura - Medium
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Rails4ã§æ¥½è¦³çš„ãƒãƒƒã‚¯ã‚’実装ã™ã‚‹ - Rails Webook
Rails4ã§æ‚²è¦³çš„ãƒãƒƒã‚¯ã‚’実装ã™ã‚‹ - Rails Webook
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