Hi all
Just coming back to Django after a long time away, and struggling to
get my head around what should be a trivial concept using the ORM.
Essentially I want to do acheive the following SQL:
SELECT * FROM publisher_history
INNER JOIN publisher_publisher ON publisher_publisher.id =
publisher_history.publisher_id
GROUP BY publisher_id ORDER BY date_time DESC;
My models look like this:
class Publisher(models.Model):
name = models.CharField(max_length=100, blank=False)
class History(models.Model):
publisher = models.ForeignKey(Publisher, blank=False)
I've been trying to use object values, but I'm getting duplicate
publishers. Code looks like this:
results = History.objects.values('publisher').distinct()
If I run:
results = History.objects.values('publisher').distinct().order_by()
I don't get duplicates but I don't get the results returned in the
order I expect either.
Any help would be greatly appreciated, I've stared at this for a while
now.
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