django sort by manytomany relationship
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by Marconi
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Published on 2010-04-11T13:06:55Z
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2010/04/11
13:13 UTC
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django
I have the following model:
class Service(models.Model):
ratings = models.ManyToManyField(User)
Now if I wanna get all the service with ratings sorted in descending order I did something:
services_list = Service.objects.filter(ratings__gt=0).distinct()
services_list = list(services_list)
services_list.sort(key=lambda service: service.ratings.all().count(), reverse=True)
As you can see its a three step process and I don't feel right about this. Anybody who knows a better way to do this?
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