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중고 신입이 개발해보기..
saved_change_to_attribute 본문
https://rubyinrails.com/2019/04/08/rails-changed-behavior-of-attribute-changed-in-callbacks/
Rails changed behavior of attribute_changed in callbacks
Rails changed behavior of attribute_changed? in after and before callbacks. Older versions will throw deprecation warnings indicating which methods to use instead. When working on Rails 5.1.5 project, a warning was thrown in rails server logs. DEPRECATION
rubyinrails.com
https://www.levups.com/en/blog/2017/undocumented-dirty-attributes-activerecord-changes-rails51.html
Underrated and enhanced dirty attributes changes in Rails 5.1
Rails 5.1 comes with a bunch of noteworthy enhancements along with changes in its API. Those related to
www.levups.com
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