Django: ordering numerical value with order_by

Question

I\'m in a situation where I must output a quite large list of objects by a CharField used to store street addresses.

My problem is, that obviously the data is ordere

Answer 1

If you're using PostgreSQL (not sure about MySQL) you can safely use following code on char/text fields and avoid cast errors:

MyModel.objects.extra(
    select={'myinteger': "CAST(substring(charfield FROM '^[0-9]+') AS INTEGER)"}
).order_by('myinteger')