Rails: Change default format of the date_select helper?

How can I change t开发者_Python百科he default order of the date_select helper?

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view

date_select("set_date", "written_on", :order => [:year, :month])

controller

date = (params[:set_date])? params[:set_date] : DateTime.now
date = date.to_a.sort.collect{|c| c[1]}.join("-")

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The helper offers a limited set of options. If you want to apply further customizations, you need to create your own.