Hi Brain, Thanks for the hint! Is it possible to calculate the average of a star rating field, for example, from all of the reviews (children) of a book (parent)? Or would this only work if I were trying to calculate an average of some field within a single model? If it's possible to calculate this for a parent based on all its children, would I want to put the calculation in the child model or the parent model?
Thanks, Jake On Apr 29, 9:22 am, Bryan Larsen <[email protected]> wrote: > Here's a starting hint: > > http://ar.rubyonrails.org/classes/ActiveRecord/Calculations/ClassMeth... > > If you need more help than a hint, don't be afraid to ask. > > Bryan > > > > > > > > On Sat, Apr 28, 2012 at 6:07 PM, Jake K <[email protected]> wrote: > > Hi all, > > > I'm making a review application, and am working with two kinds of > > items - "books" and "reviews", where books have many reviews and > > reviews are children of books. Each review has a few integer fields > > where reviewers can rate some quality of the book. How would I go > > about calculating an average value for some question from all the > > reviews, and display it on the book's view page? Essentially I'm > > trying to show the average star rating for a book based on all the > > star values in its children reviews. > > > Thanks for any advice! > > -Jake > > > -- > > You received this message because you are subscribed to the Google Groups > > "Hobo Users" 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 > > athttp://groups.google.com/group/hobousers?hl=en. -- You received this message because you are subscribed to the Google Groups "Hobo Users" 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/hobousers?hl=en.
