変更点
DEPRECATION WARNING: error_messages_for was removed from Rails and is now available as a plugin. Please install it with `rails plugin install git://github.com/rails/dynamic_form.git`. っていうエラーが専門書の内容で作っていると本当にでまし…
DEPRECATION WARNING: error_messages_for was removed from Rails and is now available as a plugin. Please install it with `rails plugin install git://github.com/rails/dynamic_form.git`. っていうエラーが専門書の内容で作っていると本当にでまし…
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