Hey all, I call this method to create two objects with certain attributes but because of this, these objects do not have the attributes of any of the report object instantiated normally: def self.sum_distance_by_date find_by_sql("SELECT date_trunc(''day'', time), SUM(distance) FROM reports GROUP BY date_trunc(''day'', time)") end So this method creates two report objects with a sum method and date_trunc method but none of the instance methods assigned to regular report object instances. The problem is the sum method returns a value that I need to modify and I am not sure how to create an extra method for these two objects to do that. I try adding this to report model: def distance_miles_for_report self.sum * 0.000621371192 end def distance_format if self.has_attribute?(:distance) return sprintf("%.2f mi.", distance_miles) elsif self.has_attribute?(:sum) return sprintf("%.2f mi.", distance_miles_for_report) end end But simply adding this instance method to report model does not copy the methods over to the object instances created with sum_distance_by_date. So I am wondering how I can ensure that the distance_format and distance_miles_for_report method are copied to objects created with sum_distance_by_date. thanks for response -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.