Hi there, I recently started learning Ruby on Rails. I decided to learn Rails by programming some kind of small statistic application where I can document the fuel consumption of my car - i.e. everytime I'm at the gas station I log price and amount of the gas refuled and the distance travelled since the last refuelling.
One of my models looks like this: # start class Refuelling < ActiveRecord::Base belongs_to :car def consumption liter/kilometer * 100 end def liter_price price/liter end def type_of_tires if tires "winter tires" else "normal tires" end end end # end In my view I use this like this (simplyfied): # start <% for r in @refuelling %> <%=h r.created_at.to_date %> <%=h r.kilometer %> <%=h r.liter %> <%=h r.price %> <%=h r.consumption %> <%=h r.liter_price %> <%=h r.type_of_tires %> <% end %> # end Now I want to calculate the max, min, average of this consumption method, but I do not know how. I tried creating a method like ... # start def max maximum(consumption) end # end ... in my model but that did not work. Any hints on how to accomplish this? Thanks. Max -- 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-t...@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.