Django: Does prefetch_related() follow reverse relationship lookup?

Question

I\'ve tried prefetch_related() in django 1.4 from trunk and can\'t make it to prefetch reverse lookup.

My simplified models (each book has many prices):

Answer 1

Define a related name:

class Price(models.Model):
    book = models.ForeignKey(Book, related_name='prices')

and then use it:

books = Book.objects.prefetch_related('prices')