I have a Sale model that foreign keys into an APN model, which foreign keys
into a Zip model. I'd like to sort my Sale objects by the 'zip' field on the
Zip model, but
Sale.objects.select_related().order_by('sales_zip.zip')
doesn't work (1054, "Unknown column 'sales_zip.zip' in 'order clause'"). It
only works if I sort by something on the APN model, which is one foreign-key
hop instead of two.
Is there an easy way to do this? Am I missing something? I'm running 0.96 but
not opposed to the trunk alternative.
Thanks,
charles
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