Django filter vs exclude

Posted by Enrico on Stack Overflow See other posts from Stack Overflow or by Enrico
Published on 2010-03-11T03:38:40Z Indexed on 2010/03/11 17:34 UTC
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django

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django-queries

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django-queryset

Is there a difference between filter and exclude in django? If I have

self.get_query_set().filter(modelField=x)

and I want to add another criteria, is there a meaningful difference between to following two lines of code?

self.get_query_set().filter(user__isnull=False, modelField=x)

self.get_query_set().filter(modelField=x).exclude(user__isnull=True)

is one considered better practice or are they the same in both function and performance?

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