Question

Models:

class Item(models.Model):
    name = models.CharField(max_length=100)
    # More stuff.
class Sale(models.Model):
    sale_date = models.DateField(auto_now_add=True)
    item = models.ForeignKey(Item)
    # More stuff.

View:

class TodaySales(ListView):
    # Stuff in here.
    def get_queryset(self):
        sales_today = Sale.objects.filter(sale_date=date.today())
        return sales_today.values('item').annotate(Count('item'))

I get back something like this:

[{'item': 1, 'item__count': 2}, {'item': 2, 'item__count': 1}]

This is nice and all and but what I really want is to be able to get extra information about the item, such as its name, etc. But I can’t seem to do this easily since all I get is the item ID, so I can’t in my template do, for example, {{ item.name }}.

Is there some good way of doing this?

Answer 1

This will do. Try:

Item.objects.filter(
    sale__sale_date=date.today()
).annotate(
    count = Count('sale')
)