ActiveRecord オブジェクトをコピーã™ã‚‹ - 夜㮠Discoveryuser = User.find(:first) user.id # 1 user.name # test clone_user = user.clone dup_user = user.dup # clone ã—ãŸã‚ªãƒ–ジェクト㯠ID ãŒå«ã¾ã‚Œãªã„ clone_user.id # nil dup_user.id # 1 # clone ã—ãŸã‚ªãƒ–ジェクト㯠new_record? == true user.new_record? # nil clone_user.new_record? # true dup_user.new_record? # nil # dup ã§è¤‡è£½ã—ãŸã‚ªãƒ–ジェクトã¯è¤‡è£½å…ƒã‚ªãƒ–ジェクトã®å±žæ€§å€¤ã‚’変更ã™ã‚‹ã¨å€¤ãŒå¤‰ã‚ã‚‹ user.name = 'new name' clone_user.name # test dup_user.name # new name 上記ã®ã‚ˆã†ãª
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