指定两个月之间距离的Rails迁移…?

这可以帮助您: http://www.francisfish.com/getting_the_number_of_months_between_two_dates_in_rubyrails.htm

获取月数后,您可以从此处获取月名:

months = ["", "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"]
months[start_date.month, number_of_months]

如
月[时间.现在.月,5] =>[“五月”,“六月”,“七月”,“八月”,“九月”]

编辑:
除此之外,您可以使用:

Date::MONTHNAMES[start_date.month, number_of_months]

编辑:
或者,如果您的select标签中有月份号,您只需使用:

Date::MONTHNAMES[start_month_num, end_month_num]

但是,如果end-month-num小于start-month-num,这将失败。

这应该有效:

if start_month <= end_month
  Date::MONTHNAMES[start_month..end_month]
else
  Date::MONTHNAMES[end_month..12] + Date::MONTHNAMES[1..start_month]
end