https://rails.densan-labs.net/form/relation_register_form.html nested_form_fieldsというGemを使う https://www.virment.com/add_and_remove_rails_nested_form_dynamically/ https://github.com/ncri/nested_form_fields https://qiita.com/classe729/items/651c0f07e1f442d99c74
2020年02月02日(日)
2.5時間
