ruby-on-rails - 如何在 Rails 中编写增加天数的助手？

Question

我有以下助手，它应该根据数字将日期写成文字:

def day_in_words(number)
    case number
    when 0
      "Sunday"
    when 1
      "Monday"
    when 2
      "Tuesday"
    when 3
      "Wednesday"
    when 4
      "Thursday"
    when 5
      "Friday"
    when 6
      "Saturday"
    when 7
      "Sunday"
    when 8
      "Monday"
    when 9
      "Tuesday"
    when 10
      "Wednesday"
    when 11
      "Thursday"
    ...
    when 16
      "Sunday"
    when 17
      "Monday"
    when 18
      "Tuesday"
    when 19
      "Wednesday"
    when 20
      "Thursday"
    when 21
      "Friday"
    else
      "Unknown Day"
    end
  end

如何重构那个助手？

Answer 1

也许你试过这个 ->

Date::DAYNAMES[number%7]