从Ruby中的DateTime减去n小时 [英] Subtract n hours from a DateTime in Ruby
本文介绍了从Ruby中的DateTime减去n小时的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
DateTime有两个方法 - 和<减去日,月,而不是小时。 ( API )。任何建议我可以这样做?
解决方案
你可以这样做。
adjusted_datetime =(datetime_from_form.to_time - n.hours).to_datetime
I have a Ruby DateTime which gets filled from a form. Additionally I have n hours from the form as well. I'd like to subtract those n hours from the previous DateTime. (To get a time range).
DateTime has two methods "-" and "<<" to subtract day and month, but not hour. (API). Any suggestions how I can do that?
解决方案
You could do this.
adjusted_datetime = (datetime_from_form.to_time - n.hours).to_datetime
这篇关于从Ruby中的DateTime减去n小时的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文