use active record sum method self.order_items.sum( :price )
-Sandip On Fri, Jun 5, 2009 at 12:50 PM, Frederick Cheung < [email protected]> wrote: > > > > On Jun 5, 5:01 am, Kevin Fu <[email protected]> wrote: > > Hi, > > > > I have a method like this, calculating the sub_total in an order model: > > > > def sub_total > > result = 0 > > for item in self.order_items > > result += item.price > > end > > result > > end > > > > Is there a rails way to make the method more simple and concise? > > > > Have a peak at the sum method :-) > > Fred > > Thank you :) > > > > -- > > regards, > > Kai Fu > > > > Material Science and Engineering > > Huazhong University of Science and Technology > > Wuhan Hubei Province P.R.China > > E-mail: [email protected] > > > -- Ruby on Rails Developer http://sandip.sosblog.com http://funonrails.wordpress.com www.joshsoftware.com --~--~---------~--~----~------------~-------~--~----~ 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 [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
