Django - how to specify a database for a model?

Question

Is there a way to specify that a model (or app, even) should only ever use one particular database?

I am working with a legacy database that I don\'t want to change.

Answer 1

The simple solution is to set the manager to always use a specific database for the model. Look into Django's using.

Example:

class User(models.Model):
    birth_date = models.DateField()

    class Meta:
        managed = False
        db_table = 'myotherapp_user'

User.objects = User.objects.using('myotherdb')

Then you can use User.objects and it will always use the 'myotherdb' database instead of 'default'.

Note that relations between models from different databases will not work, but this is an issue with Django since it does not support this out of the box.