This may be a dumb question but I've been banging my head against it
for a while. Two questions, actually.

(I'm using the M-R branch.)

1) How can I use a field in a related model in a Meta.ordering clause?
E.g. I want my Articles sorted by Reporter.lastname

2) How can I use a computed value in a Meta.ordering clause? E.g. I
want my Reporters sorted by Reporter.number_of_articles_this_week()

BTW, plugging the FK field into the ordering clause produces an
OpertationalError, "Unknown table
'RELATED_TABLE_THAT_MOST_CERTAINLY_IS_KNOWN' in order clause." If the
answer to my above questions is "you can't, sorry," then I hereby
volunteer to at least try making that error message more useful.

Thanks in advance for any advice.

pb
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