Margie Roginski wrote:
Say I have a Reader model that has a foreign key to a Book
class Reader(models.Model):
book = models.ForeignKey(Book)
Now say I want to find all books and order them by the number of
readers. Is that possible, ie something like this?
Book.objects.all().order_by(reade
akaariai wrote:
> This is not the easiest query to perform using SQL. Something like the
> following query might work, I have tested it only quickly.
>
> select t2.pizza_id
> from (select pizza_id from pizza_toppings group by pizza_id
>having count(*) = (select count(*) from pizza_toppings wher
Is it possible to filter by the ManyToMany fields?
Suppose I have a Pizza model and a Topping model. Topping has a
ManyToManyField pointing to Pizza. I now have an instance of a Pizza
called mypizza.
I would like to now search for all Pizzas with the EXACT same Toppings
as mypizza. Intuitively
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