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ActiveSupport::Duration で経過した月数を計算する

Rails

Posted at 2023-01-26

[1] pry(main)> now = Time.current
=> Thu, 26 Jan 2023 19:07:20 JST +09:00

[2] pry(main)> past = Time.current.ago(6.months)
=> Tue, 26 Jul 2022 19:07:22 JST +09:00

[3] pry(main)> ActiveSupport::Duration.build(now - past).parts
=> {:months=>6, :days=>1, :hours=>9, :minutes=>5, :seconds=>22.157833217}

[4] pry(main)> ActiveSupport::Duration.build(now - past).parts.dig(:months)
=> 6

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