gistfile1.txt

#in the model
class Mymodel  < ActiveRecord::Base
  named_scope :periodos, lambda{
    |*args|{    
      :conditions => ['periodo >=? and periodo <=?',args.first ||0,args.second || 99999 ]
      }  
    }
end

#view
--- form
<%= f.text_field :periodos,:size =>8 %>
--- end form

# how do i send the second parameter?