Hi, Using multiple DBs, with most models in the "default" db but models for a single app being stored in a second DB, I've more or less copied the example from the docs <https://docs.djangoproject.com/en/1.8/topics/db/multi-db/#an-example> for a custom database router. (My example is essentially identical to the `AuthRouter` class given.)
This works perfectly *except* when I run the migration on the second DB. The app relations are all created but I then get an error creating the ContentType... > RuntimeError: Error creating new content types. Please make sure contenttypes is migrated before trying to migrate apps individually. This occurs because the relation "django_content_type" does not exist in the second database — that's correct: I'm expecting content types to be written only to the "default" db. My question is why is this error occurring? 1. As per the docs, in my router, I am returning "None if there is no suggestion" for all the router methods — particularly `db_for_write`, which seems relevant here. 2. Looking at the source, the default router returns `DEFAULT_DB_ALIAS` if all the custom routers return None. So 3. I can't see the error. :-) — I'm expecting the content type to be written to the default db. I can work around the issue here — but I'd like to understand it. Can anyone with experience of this explain what I've done wrong? Kind Regards, Carlton -- You received this message because you are subscribed to the Google Groups "Django users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/django-users. To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/013ef727-b914-4986-b037-f8fae258af86%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
