Rails Datetime接受不正确的值，尽管验证

Question

db / migrate / 20160222115940_create_menus.rb

 select rcp.CalendarPeriodId
       ,rc.CalendarId
       ,rcp.CalendarYearId
       ,rcp.PeriodNumber
       ,rcp.PeriodStartDate,rcp.PeriodEndDate
       ,CASE WHEN GETDATE() BETWEEN rcp.PeriodStartDate AND rcp.PeriodEndDate THEN 1 ELSE 0 END AS 'CurrentPeriod'
from RentCalendarPeriod rcp
LEFT JOIN RentCalendarYear rcy ON rcy.CalenderYearId = rcp.CalendarYearId
LEFT JOIN RentCalendar rc ON rc.CalendarId = rcy.CalendarId

应用程序/模型/ menu.rb

class CreateMenus < ActiveRecord::Migration
  def change
    create_table :menus do |t|
      t.datetime :menu_date

      t.timestamps null: false
    end
  end
end

我甚至在这里正确测试了正则表达式： - http://rubular.com/r/A8r8AGWgHv

你仍然可以看到它在终端输出中接受了错误的格式。