@Dave:
It is not a 1-to1 as I would like each borrower to provide his own
rating, and then compute the average ratings per book - to make
recommendations for the highest rated books.
Thanks for the example in the reply too. I will try out the SQL update
shortly.
@ Russ:
Thanks too for the input
On Sat, Dec 27, 2008 at 7:48 AM, eldonp2 wrote:
>
> Is there a way to calculate and store the average rating in this
> example:
It's not entirely clear which part of this problem you want help with.
- Computing the average rating. The brute force approach would be to
iterate over the relevant
Hmm... this is slightly different... is BookRatings and Books 1 to 1?
If I store these aggregates as part of the class that it's grouping
by. Here's how I do it for restaurants:
class RestaurantRating(models.Model):
restaurant = models.ForeignKey(Restaurant)
value = models.IntegerF
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