sum method

Bolo wrote:

i would like to use sum
   def calculate_score
     self.score = self.votes.sum(&:score)
   end

But this new method was not working

Can u explain me why ?

Try:

self.votes.sum('score')

(For future reference, it is useful if you can post the actual error
message that you get, rather than just telling us that it doesn't
work.)

Chris