class CleanUpUserHistory < ActiveRecord::Migration[4.2] def up # 'checked_for_custom_avatar' is not used anymore # was removed in https://github.com/discourse/discourse/commit/6c1c8be79433f87bef9d768da7b8fa4ec9bb18d7 UserHistory.where(action: UserHistory.actions[:checked_for_custom_avatar]).delete_all end def down end end