class HogehogeService # Hogehogeはモデル名まんま def process(hogehoge, option_a: nil, option_b: nil, option_c: false) history = hogehoge.histories.last unless hogehoge.active? hogehoge.histories.last.update(state: :cancel) return error_message end case hogehoge.kind when "type_a" # ... when "type_b" # ... end ActiveRecord::Base.transaction do history.save! history.create_foobars end end end 何が酷いって、機能が何なのか
I’ve been programming in Object Oriented languages for decades. The first OO language I used was C++ and then Smalltalk and finally .NET and Java. I was gung-ho to leverage the benefits of Inheritance, Encapsulation, and Polymorphism. The Three Pillars of the Paradigm. I was eager to gain the promise of Reuse and leverage the wisdom gained by those who came before me in this new and exciting lands
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