Hello,
I made a library application. I have books each with its own id number
(different from the autofield added by django). the book has several
foreign keys each with its own id.
I wrote a function that returns a long id number in string format
consisting of the book id number and id number of several of its foreign
keys.
say I have a topic foreign key. the function does something like this:
book id: 122
topic id: 4
the function returns: 04-0122
I show this id number in the admin page. I want to sort this item which
is not actually in the database by topic id then by book id. however,
admin_order_field only takes 1 property.
if i have for example the following:
04-0122
03-1002
04-0043
they should be like this in the admin page after sorting:
03-1002
04-0043
04-0122
is that possible?
Thank you
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