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Editorial Team
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Asked: 2026-05-28T18:46:36+00:00

I need to provide my users a list of choices from a model which

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I need to provide my users a list of choices from a model which is stored in a separate legacy database. Foreign keys aren’t supported in django multi-db setups. The ideal choice would be to use a foreign key, but since thats not possible I need to some up with something else.

So instead I created an IntegerField on the other database and tried using choices to get a list of available options. 

class OtherDBTable(models.Model):
    client = models.IntegerField(max_length=20, choices=Client.objects.values_list('id','name'))

the problem I’m having is that the choices seem to get populated once but never refreshed. How do I ensure that whenever the client list changes that those newest options area available to pick.

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  1. Editorial Team

    What I was really looking for was a way that I could simulate the behavior of a Foreign key field, at least as far as matching up ID’s go.

    There wasn’t a clear way to do this, since it doesn’t seem like you can actually specify an additional field when you instantiate a model (you can with forms, easily)

    In any case to deal with the problem, since the database is MySQL based, I ended up creating views from the tables I needed in the other database.

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