On Tuesday, 24 September 2013 21:58:44 UTC+1, Simon Charette wrote:
> Unfortunately the Django ORM's doesn't support conditionnal
> aggregates<https://code.djangoproject.com/ticket/11305>
> .
>
This is true, but completely irrelevant to the OP's question, which doesn't
require them. The documentation gives an example which AFAICT is exactly
what the OP wants,
at
https://docs.djangoproject.com/en/1.5/topics/db/aggregation/#order-of-annotate-and-filter-clauses.
Translating it into the relevant models:
items_by_popularity =
Item.objects.all().filter(itemlikestatus__liked_status='L').annotate(Count('itemlikestatus')).order_by('-itemlikestatus__count')[:number_requested]
--
DR.
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