Ruby on RailsのActiveSupportに便利メソッドがいっぱいあるとは聞いていたが、調べてみたら「こんなのがあるのか!」と目から鱗だったので紹介。 1. all_day, all_week, all_month, all_year 今までPostモデルに scope :created_this_month -> do where(created_at: Time.zone.today.beginning_of_month..Time.zone.today.end_of_month) end
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