如何从今天开始向后写一个select_year?

我知道有一个select_Year但我无法弄清楚如何使用它:

= f.select_year("dob", :start_year => DateTime.now.year, :end_year => DateTime.now.year - 100 ) 

这是不正确的..你真的会写这个吗? 我的属性是:dob

 = f.select_year(Date.today, :start_year => DateTime.now.year, :end_year => DateTime.now.year - 100, :field_name => 'dob' ) 

编辑

下一个工作

 select_year(Date.today, {:start_year => DateTime.now.year, :end_year => DateTime.now.year - 100}, {:name => 'card_signup[dob]'})