django: exclude models from migrations
So far, I've tried different things, all without any success:

used the managed=False Meta option on both Models


That option (the managed = False attribute on the model's meta options) seems to meet the requirements.
If not, you'll need to expand the question to say exactly what is special about your model that managed = False doesn't do the job.
In my django application (django 1.8) I'm using two databases, one 'default' which is MySQL, and another one which is a schemaless, read-only database.
I've two models which are accessing this database, and I'd like to exclude these two models permanently from data and schema migrations:

makemigrations should never detect any changes, and create migrations for them
migrate should never complain about missing migrations for that app

So far, I've tried different things, all without any success:

used the managed=False Meta option on both Models
added a allow_migrate method to my router which returns False for both models

Does anyone have an example of how this scenario can be achieved?
Thanks for your help!