Hi all,
reading
<https://docs.djangoproject.com/en/1.3/topics/db/queries/#lookups-that-span-relationships>,
with the queryset
Blog.objects.filter(entry__authors=123)
I can find all blogs that have at least one entry that has the author
with id 123 in its author set.
However, in the resulting queryset there may be blogs that, besides the
entries whose (co)author the author with id 123 is, *also* have
additional entries to which 123 did not contribute, i.e. that only have
authors other than 123.
How can I find only those blogs where *all* entries were (co-)authored
by 123?
Many thanks for your help and best regards,
Carsten
[ For completeness, I tried to find words for this problem earlier at
http://groups.google.com/group/django-users/browse_thread/thread/bae63dd7904298e9,
but my attempt at phrasing it was just too clumsy. Now that I understand
the problem better, the above makes the old thread obsolete. ]
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